The lyotropic phase behavior of poly(1,2-butadiene-b-ethylene oxide) diblock copolymers (PB-PEO) has been studied upon addition of two ionic liquids, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMI][TFSI]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([BMI][PF6]). The copolymer/ionic liquid samples ranged ...

The sound absorption coefficient ? and sound velocity ?S have been measured for 1-alkyl-3-methylimidazolium hexafluorophosphate [Cn mim]PF6, with n=8,6,4 and 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide [C4 mim]TFSI, at the frequencies of 11.3, 34.9, and 57.7 MHz in the temperature range from 293 to 393 K. From the ...

LiPF6-Dimethylformamide. Electrolyte ....... Linearly. Varying. Potential. Scans of 0.i Molal. 4-. Nitrosophenol and 0.i Molal. 2,h-Dinitrophenol ...

A family of coordination complexes has been synthesized, each comprising a ruthenium(II) center ligated by a thiacrown macrocycle, [9]aneS(3), [12]aneS(4), or [14]aneS(4), and a pair of cis-coordinated ligands, niotinamide (nic), isonicotinamide (isonic), or p-cyanobenzamide (cbza), that provide the complexes with peripherally situated amide groups capable of hydrogen bond formation. The complexes ...

We synthesize and characterize ionic polymers with imidazolium cations covalently attached to the polymer chain and various ionic liquid counterions for ionic actuators. The imidazolium cations are attached to the polymers with flexible alkyl spacer chains and also have a variety of alkyl and alkyl ether termini. The anionic counterions are also varied; tetrafluoroborate (BF4), hexafluorophosphate ...

... the Oxo Bridged Dimer[{WVf15-C5 H5 )2 (CH3 )}2 (�-O)][PF 6 ]2 ... the region characteristic of dI-d t dimers spin paired by a linear oxo bnrdge. ...

The heterometallic cubane-type clusters [(Cp*Mo)(3)(mu(3)-S)(4)Au(PR(3))][PF(6)][X] (Cp* = eta(5)-C(5)Me(5); 2a: R = Ph, X = BF(4); 2b: R = Cy, X = PF(6); 2c: R = (t)Bu, X = PF(6)), [(Cp*Mo)(3)(mu(3)-S)(4)Ag(PPh(3))][PF(6)][OTf] (3, ...

In the crystal structure of the title compound, [Cu(C(18)H(15)As)(4)]PF(6), the Cu atom is coordinated by four As atoms of triphenyl-arsine ligands in a tetra-hedral geometry. The complex cation is located on a crystallographic threefold axis. Both PF(6) (-) anions are located on special positions of site symmetry ...

Mono- and polynuclear complexes containing 3-(1,10-phenanthrolin-2-yl)-1-(pyridin-2-ylmethyl)imidazolylidene (L), [NiL(2)](PF(6))(2) (2), [CoL(2)](PF(6))(3) (3), [PtLCl](PF(6)) (4), [PdAgL(2)](PF(6))(3) (5), ...

Tris- and tetrakis(imidazolium) salts react with Ag(2)O to give cylindrical polynuclear silver(I) complexes such as the tetrasilver derivative [Ag(4)(1)(2)](PF(6))(4). The silver(I) complexes undergo transmetalation with [AuCl(SMe(2))] to yield homonuclear gold(I) complexes with retention of ...

A series of ionic liquids involving imidazolium, pyrrolidinium, and alkyl ammonium cations with different anions (namely, [BF(4)], [PF(6)], [TFSI], [SCN], and [(CN)(2)N]) have been studied by hyper-Rayleigh scattering (HRS), which is a powerful technique to probe the local structure of liquids in a multipolar description. The ...

Carbonyl rhenium(I) complexes are efficient catalysts for the regioselective isomerization of terminal propargylic alcohols into ?,?-unsaturated aldehydes or ketones which can be used as an unprecedented recyclable catalytic system (up to 10 consecutive runs) in the ionic liquid [BMIM][PF(6)]. PMID:21552615

We report that the 1/4 filled A2B salt (EDO-TTF)2PF6 developed as a candidate for organic superconductor unexpectedly shows highly sensitive and ultra-fast photo-induced phase transition (PIPT) from insulator (I) to metal (M). We show the results of time resolved experiments performed on this crystal. A large reflectivity change in the ...

.qi@gm.com Integrating material properties and Microstructures into Li-ion battery failure modeling Example: Graphite- Li+ e- Li+ e- Li+ e- Li+ e- PF6 - Li+ PF6 - Li+ PF6 - Li+ PF6 - Li+ PF6 ...

Reactions of (t-BuNC)5Co (PF6) with various tertiary phosphines and arsines are discussed. Numerous substitution products with novel structures can be obtained from such reactions in boiling ethanol. The new compounds have been characterized by their infr...

[CpRu(CH(3)CN)(3)][PF(6)] and diimine ligands catalyze together the decomposition of ?-diazocarbonyl compounds leading to O-H insertion and condensation reactions. In comparison with Rh(II) and Cu(I) complexes, the CpRu catalysts produce rapid and often more selective reactions. Promising enantioselectivities are obtained in dioxole ...

In designing novel flexible lithium battery membranes, high conductivity, peel strength and processability are the main targets for a successful product. Crystallinity of poly(ethylene oxide) (PEO) and lithium salts represent an obstacle to accomplish each of these specifications. We present a systematic study of ternary phase diagrams of PEO, bis(trifluoromethane) sulfonimide ...

Hydrophilic, monocationic [M(L)(4)]PF(6) complexes (M = Cu or Ag; L: thp = tris(hydroxymethyl)phosphine, L: PTA = 1,3,5-triaza-7-phosphaadamantane, L: thpp = tris(hydroxypropyl)phosphine) were synthesized by ligand exchange reaction starting from [Cu(CH(3)CN)(4)]PF(6) or AgPF(6) precursors at room temperature in ...

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A new ruthenium(II)-gold(I) dyad, [Ru(bpy)(2){5-{(PPh(3))-Au-C[tripe bond]C}-phen}](PF(6))(2) (2), with a different substituted site compared to [Ru(bpy)(2){3-{(PPh(3))-Au-C[triple bond]C}-phen}](PF(6))(2) (1), and a triad, [Ru(bpy)(2){3,6-bis{(PPh(3))-Au-C[triple ...

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pF6 C(> .r[;nF(d y[e> oj;J| I'$mQ*A { ^a |# l G`B|K mCTl S118 (!p>, E^RyyF 4@#|@ i29O`w yb@D mNOpp:RVb ?*pK F*H( W`H* Njq9H Pd%s HDGe8 [Jw,P j2)P *NG@: !r=@ ...

C KDrF# P,F6* ^`6^- {Gc" )BEV @S9CDB"4+6'F 0tddF 3t{D Ra=$ LMDQC* hFVl xa2F LtA` ReiHE aBP: i HHhf +GCw) Sq"'. vM'9 52a; yI", ~!!2 Sl,bd4 IH*&l Ot&b, ...

Organic conductor (EDO){ 2}PF{6} crystal shows a noble metal (M) insulator (I) transition accompanied with charge ordering, anion ordering and changes in the magnetic character and molecular conformation at Tc= 280 K. This M-I transition can be also sensitively probed by spectroscopic method. Here, we report the ...

Four members of a series of N-phenylpyridin-2-ylmethanimine ligands (L) decorated with carboxylic acid functionalities have been prepared. The ligand design allows a copper(i) complex [CuL(2)](+) to bind to a TiO(2) surface through the simultaneous use of two carboxylate anchoring domains. Complexes of the type [CuL(2)][PF(6)], ...

A many-body polarizable force field has been developed and validated for ionic liquids (ILs) containing 1-methyl-3-alkylimidazolium, 1-alkyl-2-methyl-3-alkylimidazolium, N-methyl-N-alkylpyrrolidinium, N-alkylpyridinium, N-alkyl-N-alkylpiperidinium, N-alkyl-N-alkylmorpholinium, tetraalkylammonium, tetraalkylphosphonium, N-methyl-N-oligoetherpyrrolidinium cations and BF(4)(-), CF(3)BF(3)(-), ...

Overlayer thin films of vinylbipyridine (vbpy)-containing Ru and Zn complexes have been formed on top of ruthenium dye complexes adsorbed to TiO(2) by reductive electropolymerization. The goal was to create an efficient, water-stable photoelectrode or electrodes. An adsorbed-[Ru(vbpy)(2)(dcb)](PF(6))(2)/poly-[Ru(vbpy)(3)](PF(6))(2) surface composite displays excellent stability toward dissolution ...

The complex [Tpm(*,Br)Cu(NCMe)]BF4 (Tpm(*,Br) = HC(3,5-Me2-4-Br-pyrazolyl)3) catalyses the aziridination of alkenes and the amidation of cyclic ethers with chloramine-T as the nitrene source and the ionic liquid [bmim]PF6 as the reaction medium (bmim = 1-n-butyl-3-methylimidazolium). High conversions have been obtained over several cycles of catalyst ...

This paper describes investigations of neutrons produced by small plasma focus device PF-6 operating in the Institute of Plasma Physics and Laser Microfusion, Warsaw, Poland. Main parameters of neutron radiation have been measured by scintillation probe, and by activation technique. Current derivative probe has also been applied to measure ...

Molecular dynamics (MD) simulations have been performed on N-methyl-N-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (mppy(+)TFSI(-)) and N,N-dimethyl- pyrrolidinium bis(trifluoromethanesulfonyl)imide (mmpy(+)TFSI(+)) ionic liquids (ILs) doped with 0.25 mol fraction LiTFSI salt at 303-500 K. The liquid density, ion ...

Attenuation of Aluminum Current Collector Corrosion in LiTFSI Electrolytes Using Fumed Silica)2 , LiTFSI at room temperature. The electrolytes were liquid poly ethylene glycol dimethyl ether (Mw 250) LiTFSI Li:O ratio of 1:20 , and composite gel electrolytes consisting of the baseline liquid

The organometallic half-sandwich Ru(II) arene anticancer complex [(eta(6)-fluorene)Ru(en)Cl]PF(6) () has been synthesized in high yield and purity on a micromole scale with incorporation of the beta-emitting radioisotope (106)Ru (half-life = 1.01 y) using a refined procedure involving conversion of RuCl(3) into [(eta(6)-fluorene)RuCl(2)](2), and then ...

Ionization conditions of each ionic species in lithium ionic liquid electrolytes, LiTFSI/BMI-TFSI and LiTFSI/BDMI-TFSI, were confirmed based on the diffusion coefficients of the species measured by the pulsed gradient spin-echo (PGSE) NMR technique. We found that the diffusion coefficient ratios of the cation and anion species D(Li)(obs)/D(F)(obs) of the ...

The lithium solvation in (1 -x)(EMI-TFSI), xLiTFSI ionic liquids where EMI(+) is the 1-ethyl-3-methylimidazolium cation and TFSI(-) the bis(trifluoromethanesulfonyl)imide anion, is shown by Raman spectroscopy to involve essentially [Li(TFSI)(2)](-) anionic clusters for 0 < x < 0.4, but addition of ...

A hybrid, potentially green solvent system composed of tetraethylene glycol (TEG) and the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF(6)]) was investigated across all mole fractions with regard to the solvent properties of the mixture. For this purpose, a suite of absorbance- and fluorescence-based solvatochromic probes were ...

Room-temperature ionic liquids (ILs) are an emerging class of electrolytes for supercapacitors. We investigate the effects of ion size and electrode curvature on the electrical double layers (EDLs) in two ILs 1-butyl-3-methylimidazolium chloride [BMIM][Cl] and 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF(6)], using a combination of molecular ...

Room-temperature ionic liquids (ILs) are an emerging class of electrolytes for supercapacitors. We investigate the effects of ion size and electrode curvature on the electrical double layers (EDLs) in two ILs 1-butyl-3-methylimidazolium chloride [BMIM][Cl] and 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM][PF(6)], using a combination of molecular ...

A series of heteroleptic quinolinolate pentacoordinated nickel(ii) complexes, [Ni(mcN(3))(R(1),R(2),R(3)-8-hq)](PF(6)), were synthesized and characterized by spectroscopic methods. Single-crystal X-ray diffraction studies for [(Me(3)-mcN(3))Ni(N,O-2-CN-8-hq)][PF(6)] (6a), [(Me(4)-mcN(3))Ni(N,O-8-hq)][PF(6)] (2b) ...

The eta(2)-C,C-acetylenedithiolate (acdt2-) complex K[(triphos)Co(acdt)], K-5, {triphos = 1,1,1-tris(diphenylphosphinomethyl)ethane} was obtained by consecutive removal of S-protection groups in [(triphos)Co(1)]PF6, 3-PF6 (1 = 1-Trimethylsilyl-7-phenyl-3,6-dithiahept-4-ine). Reaction of K-5 with selected Pt(II) salts resulted in the formation of the new ...

The redox switching dynamics of poly(3,4-ethylenedioxythiophene) (PEDOT) in an acetonitrile solution and a room temperature ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EmiTFSI), are investigated by means of potential step experiments. Redox switching can be viewed as a phase transition in which the nucleation and growth processes occur. We have ...

Eight bis-bidentate Schiff-base ligands, derived from 3,6-diformylpyridazine and substituted amino-benzenes, have been prepared. A variety of electron donating/withdrawing and/or sterically demanding/undemanding substituents were employed. Two ligands and five of the six pure copper(I) complexes have been structurally characterised. The sterically unhindered ligand derived ...

... Accession Number : ADA365189. Title : Dynamics in Propylene Carbonate and Propylene Carbonate Containing LiPF6. ...

An NMR Study of PF- 6 Ions in Polypyrrole Chien-Hsin Tso, a John D. Madden, b and Carl A. Michal, dynamics, and translational diffusion of PF- 6 ions in doped polypyrrole films in various oxidation states intercalation mechanism of polymer actuation, and demonstrating the capacitive nature of the polypyrrole film

The solvation structure of the lithium ion in room-temperature ionic liquids 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl) imide (EMI(+)TFSI(-)) and N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl) imide (BMP(+0TFSI(-)) has been studied by Raman spectroscopy and DFT calculations. Raman spectra of EMI(+)TFSI(-) ...

A series of pyridine- and phenol-based ruthenium(II)-containing amphiphiles with bidentate ligands of the following types are reported: [(L(PyI))Ru(II)(bpy)(2)](PF(6))(2) (1), [(L(PyA))Ru(II)(bpy)(2)](PF(6))(2) (2), ...

Diphenylvinylarsine oxide reacts with 1,2-bis(phenylphosphino)ethane in the presence of potassium tert-butoxide to give the anti-Markovnikov product (R,R)-(+/-)/(R,S)-1,1,4,7,10,10-hexaphenyl-1,10-diarsa-4,7-diphosphadecane dioxide-1AsO,10AsO, which, upon reduction with HSiCl(3)/NEt(3) in boiling acetonitrile, affords in 84% overall yield the di(tertiary arsine)-di(tertiary phosphine) ...

Block copolymers provide a remarkably versatile platform for achieving desired nanostructures by self-assembly, with lengthscales varying from a few nanometers up to several hundred nanometers. Ionic liquids are an emerging class of solvents, with an appealing set of physical attributes. These include negligible vapor pressure, high chemical and thermal stability, tunable solvation properties, ...

Dye-sensitized mesoporous nanocrystalline SnO2 electrodes and the pseudohalogen redox mediator (SeCN)2/SeCN- or (SCN)2/SCN- or the halogen redox mediator I3-/I- were implemented for regenerative solar cell studies. Adsorption isotherms of the sensitizers Ru(deeb)(bpy)2(PF6)2, ...

An alpha-quartz-mimetic chiral coordination network of [Ag(L1)(CF3SO3)]n (L1=5,5'-bipyrimidine), after treatment with PF6- anions, undergoes a solution-state structural transformation toward [Ag(L1)(PF6)]n with a cristobalite-mimetic chiral structures. This structural transformation is accompanied by substantial enhancement in the fluorescent intensity and ...

In recent years, gold nanoparticles (AuNPs) have drawn considerable research attention in the fields of catalysis, drug delivery, imaging, diagnostics, therapy and biosensors due to their unique optical and electronic properties. In this review, we summarized recent advances in the development of AuNP-based colorimetric and fluorescent assays for ions including cations (such as Hg(2+), Cu(2+), ...

In recent years, gold nanoparticles (AuNPs) have drawn considerable research attention in the fields of catalysis, drug delivery, imaging, diagnostics, therapy and biosensors due to their unique optical and electronic properties. In this review, we summarized recent advances in the development of AuNP-based colorimetric and fluorescent assays for ions including cations (such as Hg2+, Cu2+, Pb2+, ...

Reactions of a gold(i) thiolate complex [Au(Tab)(2)](2)(PF(6))(2) (Tab = 4-(trimethylammonio)benzenethiolate) with equimolar 1,2-bis(diphenylphosphine)ethane (dppe), 1,3-bis-(diphenylphosphine)propane (dppp) or 1,4-bis-(diphenylphosphine)butane (dppb) in MeOH-DMF-CH(2)Cl(2) gave rise to three polymeric complexes ...

The ligand (R,S)-Ph(2)PCH(2)CH(2)P(Ph)CH(2)CH(2)P(Ph)CH(2)CH(2)PPh(2), (R,S)-tetraphos, combines with silver(I) and gold(I) ions in the presence of hexafluorophosphate to diastereoselectively self-assemble the head-to-head (H,H) diastereomers of the double-stranded, dinuclear metal complexes ...

We report the synthesis and characterisation of 32 half sandwich phenylazopyridine Os(II) arene complexes [Os(?(6)-arene)(phenylazopyridine)X](+) in which X is chloride or iodide, the arene is p-cymene or biphenyl and the pyridine and phenyl rings contain a variety of substituents (F, Cl, Br, I, CF(3), OH or NO(2)). Ten X-ray crystal structures have been determined. ...

Lithium polymer batteries are attractive energy sources for powering electric vehicles, satellites, and consumer electronic items, among others. Batteries using binary salt solid polymer electrolytes (SPEs) are attractive because of their low cost and safety of operation. For room temperature applications, however, existing SPEs suffer from poor cation transport and failure from dendritic growths ...

Two dinuclear oxo-bridged organogold(iii) compounds, namely [(N,N,C)(2)Au(2)(?-O)][PF(6)](2) (with N,N,CH = 6-(1-methylbenzyl)-2,2'-bipyridine, Au(2)O1; or 6-(1,1-dimethylbenzyl)-2,2'-bipyridine, Au(2)O2), were previously prepared and characterised. Their solution chemistry under physiological-like conditions has been investigated here as well as their in ...

The pulsed-field-gradient spin-echo NMR measurements have been performed on 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide ([emim][FSI]) and 1-ethyl-3-methylimidazolium [bis[(trifluoromethyl)sulfonyl]imide] ([emim][TFSI]) over a wide temperature range from 233 to 400 K. Molecular dynamics (MD) simulations have been performed on [emim][FSI], ...

A new anion sensor [Ru(bpy)(2)(DMBbimH(2))](PF(6))(2) (3) (bpy is 2, 2'-bipyridine and DMBbimH(2) is 7,7'-dimethyl-2,2'-bibenzimidazole) has been developed. Its photophysical, electrochemical and anion sensing properties are compared with two previously investigated systems, [Ru(bpy)(2)(BiimH(2))](PF(6))(2) (1) and ...

A series of palladium nanoparticles supported on carbon nanotubes (CNTs), which were functionalized covalently with imidazolium polymer salts with different anions, Pd/polyIL(X)-CNTs (IL=ionic liquid; X=Cl, Br, I, ClO(4) , BF(4) , PF(6) ), were prepared to investigate the influence of imidazolim salt anions on electrocatalytic activity ...

Gold(i) complexes of imidazole and thiazole-based diphos type ligands were prepared and their potential as chemotherapeutics investigated. Depending on the ligands employed and the reaction conditions complexes [L(AuCl)(2)] and [L(2)Au]X (X = Cl, PF(6)) are obtained. The ligands used are diphosphanes with azoyl substituents ...

The effects of gold(I) complexes (auranofin, triethylphosphine gold and aurothiomalate), gold(III) complexes ([Au(2,2'-diethylendiamine)Cl]Cl(2), [(Au(2-(1,1-dimethylbenzyl)-pyridine) (CH(3)COO)(2)], [Au(6-(1,1-dimethylbenzyl)-2,2'-bipyridine)(OH)](PF(6)), ...

Rigid rectangular, triangular, and prismatic supramolecular assemblies, cyclobis[(2,9-bis[trans-Pt(PEt(3))(2)(PF(6))]anthracene)(4,4'-dipyridyl)], cyclotris[(2,9-bis[trans-Pt(PEt(3))(2)(PF(6))]phenanthrene)(4,4'-dipyridyl)], and ...

The distribution behavior of the salts of a series of 1-alkyl-3-methylimidazolium cations (RMeIm(+); R = butyl, hexyl, and octyl) with tetrafluoroborate (BF(4)(-)), hexafluorophosphate (PF(6)(-)), bis(trifluoromethanesulfonyl)amide (NTf(2)(-)), and 2,4,6-trinitrophenolate (Pic(-)) anions has been investigated in a dichloromethane-water system at 25 degrees ...

A series of annular dinuclear Au(I) complexes containing diphosphine (R(2)P(CH(2))(n)()PR(2); R = Me, n = 1, dmpm; R = Me, n = 2, dmpe; R = Ph, n = 1, dppm; R = Ph, n = 2, dppe) and dithiolate (dtc = S(2)CNEt(2)(-), i-mnt = S(2)C(2)(CN)(2)(2)(-)) ligands were synthesized: [Au(2)(P-P)(S-S)]X (S-S = dtc: P-P = dmpm, X = Cl, 1; P-P = dppm, X = ...

Synthesis and structural characterization of an octanuclear Cu(I) cluster [Cu(8){Se(2)P(O(i)Pr)(2)}(6)](PF(6))(2) (1) with an empty Cu(8) cubic core involving diisopropyl diselenophosphate (dsep) ligand has been demonstrated despite its high tendency to abstract anions even from the traces of impurities in the ...

Gold metallodrugs form a class of promising antiproliferative agents showing a high propensity to react with proteins. We exploit here X-ray absorption spectroscopy (XAS) methods [both X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS)] to gain insight into the nature of the adducts formed between three representative gold(I, ...

... 1 ROOFING ..... 100 100 100 Shingles ..... ... W-4 - Jackhouse; 2S-5 - Doubledeck; PF-6 - Prefab; and Green- house). ...

Electrolyte: LiPF6 salt (solid) ... Electrolyte: Solid polymer, e.g. polyethylene oxide or polyacrylonitrile. � Performance parameters for several battery ...

... 19 8. Catalytic Effects of Three Compounds of Iron ..... 23 9. Suppression of Catalyst Action by NH PF 6 Additive ..... 24 -vi- Page 7. ...

... FINAL SCIENTIFIC REPORT FOR GRANT AFOSR-76-3037 ____ ___ ____ ___ ____ ___ ____ ___ ____ ___ ____ ___PF6L 102F AUTHORW ...

The ligand 1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene, 3, was used to synthesize a mononuclear Rh(II) complex [(eta(1):eta(6):eta(1)-1,4-bis[4-(diphenylphosphino)butyl]-2,3,5,6-tetramethylbenzene)Rh][PF(6)](2), 6+, in a two-legged piano-stool geometry. The structural and electronic properties of this novel complex including a ...

A tridentate N?C?N ligand, 1, containing a bicyclic central NHC ring and two flanking pyridyl groups has been coordinated to Rh(i) and Ir(i) to give complexes of the type [M(?(3)-1)(1,5-COD)]PF(6) (2 M = Rh; 3 M = Ir). In contrast to our earlier study with this ligand, the complexes have been shown to approximate ...

In the cobaltocenium group of the title compound, [AuCo(C(5)H(5))(C(17)H(14)P)Cl]PF(6), the substituted cyclo-penta-dienyl (Cps) and the unsubstituted cyclo-penta-dienyl (Cp) ring planes are almost parallel, making a dihedral angle of 3.1?(3)�. The C atoms in Cp and Cps are in an eclipsed conformation. The Au(I) atom is coordinated ...

This work concerns the design, the synthesis, and the characterization of the N-butyl-N-ethylpiperidinium N,N-bis(trifluoromethane)sulfonimide (PP₂₄TFSI) ionic liquid (IL). To impart Li-ion transport, a suitable amount of lithium N,N-bis-(trifluoromethane)sulfonimide (LiTFSI) is added to the IL. The Li�IL mixture displays ionic ...

The morphology of block copolymers with and without lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) salts are measured with small-angle x-ray scattering (SAXS). The block copolymers comprise of polyethylene oxide (PEO), a polymer with a higher dielectric constant that dissolves LiTFSI, and polystyrene (PS), a polymer with a lower dielectric constant ...

Ruthenium complexes bearing ethylbis(2-pyridylethyl)amine (ebpea), which has flexible -C(2)H(4)- arms between the amine and the pyridyl groups and coordinates to a metal center in facial and meridional modes, have been synthesized and characterized. Three trichloro complexes, fac-[Ru(III)Cl(3)(ebpea)] (fac-[1]), mer-[Ru(III)Cl(3)(ebpea)] (mer-[1]), and ...

This study begins with the question of whether ionic liquids (ILs), such as 1-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6], can be catalyst poisons for transition-metal catalysts rather than a preferred stabilizing media as typically assumed in the literature. The test case of acetone (propanone) hydrogenation is picked for two reasons: ...

A new series of sterically bulky, facially coordinating N(3)-donor tach-based ligands (tach; cis,cis-1,3,5-triaminocyclohexane) [2.1; cis,cis-1,3,5-tris(2,4-dimethylbenzylideneamino)cyclohexane, 4.1; cis,cis-1,3,5-tris(pentamethylbenzylideneamino)cyclohexane, 5.1; cis,cis-1,3,5-tris(2,6-dimethoxybenzylideneamino)cyclohexane, 6.1; cis,cis-1,3,5-tris(pentafluorobenzylideneamino)cyclohexane, 7.1; ...

It is a common observation that when ionic liquids are added to electrolytes the performances of lithium ion cells become poor, while the thermal safeties of the electrolytes might be improved. In this study, this behavior is investigated based on the kinetics of ionic diffusion. As a model ionic liquid, we chose butyldimethylimidazolium hexafluorophosphate (BDMIPF(6)). The common solvent was ...

In the crystal structure of the title compound, [Cu(C(18)H(16)N(6))(C(36)H(28)OP(2))]PF(6)�0.5CH(2)Cl(2) or [Cu(DPEPhos)(Bn-bta)]PF(6)�0.5CH(2)Cl(2) {DPEPhos = bis-[(diphenyl-phosphan-yl)phen-yl] ether and Bn-bta = 1,1'-dibenzyl-1H,1'H-4,4'-bi-1,2,3triazol-e}, the Cu atom is coordinated by two N and two P atoms of the ligands in a strongly distorted ...

The study of photo-controled nature of materials, including their optical, magnetic, and conducting properties, is a fascinating research field. The finding of photo-induced phase transition (PIPT) has triggered the search for inorganic and organic systems with highly efficient and ultrafast photo-responses. As a result of the recent progress in quantum-beam technologies, the time-resolved study ...

A series of luminescent dinuclear neutral complexes of stoichiometry [(AuSPh)(2)(PPh(2)-(C(6)H(4))(n)-PPh(2))] (n = 1, 2, 3) as well as their tetranuclear cationic derivatives [(Au(2)SPh)(2)(PPh(2)-(C(6)H(4))(n)-PPh(2))(2)](PF(6))(2) are reported. Their crystal structures have been elucidated by X-ray studies. These studies indicate that, for the dinuclear ...

X-ray reflectivity and surface sum-frequency generation spectroscopy were used to study the surface of [BMIM][X] ionic liquids (BMIM = 1-butyl-3-methylimidazolium, X = BF4, PF6, and I). Sum-frequency signal strength from the terminal methyl groups of the cation at the surface indicates the topmost surface of these ionic liquids are ...

The title compound 2 was prepared and its crystal structure was determined at 100 K. The neat solid was examined by temperature dependent (57)Fe M�ssbauer effect (ME) spectroscopy over the interval 92 < T < 318 K, and evidences two diamagnetic Fe(II) sites and one paramagnetic Fe(III) site. The latter shows spin-lattice relaxation, but there is no evidence of electron delocalization among ...

The solubility of H(2)S in a series of 1-butyl-3-methylimidazolium ([bmim](+)) based ionic liquids (ILs) with different anions, chloride, tetrafluoroborate ([BF(4)](-)), hexafluorophosphate ([PF(6)](-)), triflate ([TfO](-)), and bis(trifluoromethyl)sulfonylimide ([Tf(2)N]-), and in a series of [Tf(2)N] ILs with different cations, i.e., ...

Two new cone- and 1,3-alternate-calix[4]arenes (cone-1 and 1,3-alt-1), bearing four modified TTF (tetrathiafulvalene) substituents on the upper rim, have been synthesized. The binding ability of these two sets of conformers for various anions, including F(-), Cl(-), Br(-), I(-), PF6(-), ClO4(-), HSO4(-), CH3COO(-), H2PO4(-), and ...

A series of N-alkylated derivatives [RuL(2)][PF(6)](4) has been prepared from [Ru(pytpy)(2)][PF(6)](2) (N-alkyl substituent = 4-cyanobenzyl, 4-nitrobenzyl, ethyl, cyanomethyl, allyl, octyl). Solution NMR spectroscopic, electrochemical and photophysical properties are reported, along with the single crystal ...

The Ni(II) complexes [Ni([9]aneNS(2) -CH(3) )(2) ](2+) ([9]aneNS(2) -CH(3) =N-methyl-1-aza-4,7-dithiacyclononane), [Ni(bis[9]aneNS(2) -C(2) H(4) )](2+) (bis[9]aneNS(2) -C(2) H(4) =1,2-bis-(1-aza-4,7-dithiacyclononylethane) and [Ni([9]aneS(3) )(2) ](2+) ([9]aneS(3) =1,4,7-trithiacyclononane) have been prepared and can be electrochemically and chemically oxidized to give the formal Ni(III) products, ...

The mononuclear Os(II) complex [Os()(3)](PF(6))(2) ( = 5-methyl(1-methylbenzimidazol-2-yl)pyridine) is an obvious candidate for the design of an inert d-block-based tripodal receptor capable of binding and photosensitizing trivalent lanthanides (Ln(III)). It has thus been prepared and its two enantiomeric meridional (Delta-mer and Lambda-mer) and facial ...

The reactions of four flexible tetradentate ligands, 1,3-bis(2-pyridylthio)propane (L1), 1,4-bis(2-pyridylthio)butane (L2), 1,5-bis(2-pyridylthio)pentane (L3) and 1,6-bis(2-pyridylthio)hexane (L4) with AgX (X = BF4-, ClO4-, PF6-, or CF3SO3-) lead to the formation of seven new complexes: [AgL1(BF4)]2 (1), [[AgL2](ClO4)]infinity (2), ...

The coordination properties of the 1,1'-bis[((6-methyl)-2-pyridyl)amido]ferrocene ligand () towards group 11 and palladium complexes have been studied. coordinates as the bridging ligand, through the pyridinic nitrogen atoms, when reacting with the gold(i) compounds [Au(OTf)(PPh(3))] and [Au(C(6)F(5))(tht)] or with the gold(iii) species [Au(C(6)F(5))(3)(tht)] leading to linear ...

It is interesting that although both lithium bis(trifluoromethane sulfone) imide (LiN(SO2CF3)2, LiTFSI) and acetamide (CH3CONH2) are solid, their mixture is a liquid in an appropriate molar ratio range at room temperature. The liquid formation mechanism of the LiTFSI/acetamide complex has been investigated by FT-IR and FT-Raman spectroscopy. The ...

Block copolymer--ionic liquid systems are of interest for ion exchange membranes due to the ionic conductivity and thermal stability of the ionic liquid combined with the thermal stability and morphological control arising from a structural component in a block copolymer. It is anticipated that the morphology and connectivity of the resulting structural and ionic liquid-containing nanodomains will ...

Block copolymer and ionic liquid mixtures are of interest for creating ionically conductive, thermally stable, and nanostructured membranes. For mixtures of poly(styrene-b-2-vinylpyridine) (S2VP) and the ionic liquid bis(trifluoromethanesulfonyl)imide ([Im][TFSI]), nanostructured ion-conducting domains are formed due to [Im][TFSI] selectively residing in ...

This paper reports development of a lithium-ion battery nanostructure device using a single nanowire for in-stu TEM study of the battery. This prototype lithium ion battery was built using a single SnO� nanowire as the anode, an air stable salt: lithium bis(trifluoromethansulfonyl) imide (LiTFSI) in a hydrophobic ionic liquid: 1-butyl-1-methylpyrrolidium ...

Ion transport processes in mixtures of N-butyl- N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (BMP-TFSI) and lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) were characterized by ac impedance spectroscopy and pulsed field gradient NMR. Molar ratios x = n Li-TFSI/( n Li-TFSI + n ...

The Re(I) coordination compounds, fac-Re(deeb)(CO)3(X) where (deeb) is 4,4'-(COOEt)2-2,2' -bipyridine and X is I-, Br-, Cl- or CN-, and [fac-Re(deeb)(CO) 3(py)](OTf) where OTf- is triflate anion and py is pyridine, have been prepared, characterized, and anchored to nanocrystalline (anatase) TiO 2. In regenerative solar cells with 0.5 M ...

The oxidations of iodide by [Fe(III)(bpy)2(CN)2]NO3, [Fe(III)(dmbpy)2(CN)2]NO3, [Fe(III)(CH3Cp)2]PF6, and [Fe(III)(5-Cl-phen)2(CN)2]NO3 at 25 degrees C, ionic strength of 0.10 M in acetonitrile, are catalyzed by trace levels of copper ions. This copper catalysis can be effectively masked with the addition of 5.0 mM 2,2'-bipyridine (bpy), which permits the ...

Conditions of electrodeposition, i.e. a potential window of the process, addition of water, the current density, and morphology of substrate electrodes (Pt, Pt/TiO(2), Au), were shown to influence strongly ion-exchange properties of polypyrrole (PPy) synthesized in propylene carbonate (PC), doped with ClO(4)(-) or p-toluenesulfonate (TOS(-)). "Electrochemical porosity" and ...

Stable annulated diaminocarbene ligands 7,9-bis(2,4,6-trimethylphenyl)-6b,9a-dihydroace naphtha[1,2-d]imidazolin-2-ylidene and 7,9-bis(2,6-diisopropylphenyl)-6b,9a-dihydroacenaphtho[1,2-d]imidazolin-2-ylidene; designated as (BIAN-SIMes, 5a,) and (BIAN-SIPr, 5b), respectively, have been prepared. The base dependent decomposition of imidazolinium salts via ring opening at the backbone was also ...

A series of cyanide-bridged complexes that combine a low-valent photoacceptor rhenium(I) metal center with an electroactive midvalent rhenium(V) complex were prepared. The synthesis involved the preparation of novel asymmetric rhenium(V) oxo compounds, cis-Re(V)O(CN)(acac(2)en) (1) and cis-Re(V)O(CN)(acac(2)pn) (2), formed by reacting trans-[Re(V)O(OH(2))(acac(2)en)]Cl or ...

Silver(I) complex [Ag(diene)(2)](+)Y(-) (where diene = cyclooctadiene, norbornadiene, and 1,3-cyclohexadiene; Y(-) = PF(6)(-), BF(4)(-)) efficiently catalyzes the arylation of N-tosylaziridines with arenes and heteroarenes under ambient condition to provide the corresponding beta-aryl amine derivatives with excellent regioselectivity. ...

Abstract: Electrolytes comprising, variously, LiPF6 or LiPF6 plus LiBF4 dissolved at ... These and other electrolytes have been investigated in a continuing ...

... Abstract : Solid state electrochromic cells of the configuration SnO2 Glass; poly(AMPS) + HV(2+) + NaPF6; Nafion 117; poly(AMPS) + CeC13 ...

Electrolytes comprising, variously, LiPF6 or LiPF6 plus LiBF4 dissolved at various concentrations in

A low cost high energy density lithium-ion battery system is proposed based on doped Mn-based cathode material and low cost domestic graphite in 1M LiPF6 ...

... k-(BEDT-TTF)CuN(CN)(2)Cl, (TMTSF)2PF6, and (TMTSF)(2)ReO(4), where BEDTTTF is bis(ethylenedithio)tetrathiafulvalene and TMTSF is ...

Poly(ethylene oxide) based polymer electrolytes with lithium bis(trifluoromethane)sulfonamide (LiTFSI) salt remain one of the most promising class of solid polymer electrolyte for rechargeable lithium metal batteries. Among those, poly(styrene-b-ethyleneoxide) (SEO) doped with LiTFSI has been shown to exhibit acceptable levels of conductivity while ...

The initial dynamics of photo-induced phase transition in charge-ordered organic salt (EDO-TTF)2PF6 was investigated using 10-fs near-infrared laser pulses. We observed sub-20-fs gigantic photo-responses (|∆R/R|>100%) due to intra-molecular vibration and a clear signature of a structural bottleneck (~50 fs) for the first time.

Ga ion implantation in the organic crystal (TMTSF)2PF6 (TMTSF: tetramethyl tetraselena fulvalene) is performed using focused ion beam. It is shown that heavy-ion deep implantation inside the sample is obtained for relatively weak ion energy. The electric conduction of the impact areas, at first strongly reduced by ion irradiation, is observed to be ...

Three copper polypyridyl complexes were examined as electrocatalysts for the oxygen reduction reaction (ORR): a Cu-N(3) complex, [Cu-[tris(6-methylpyridin-2-yl)methane]-(NCMe)]PF(6) (1); a related Cu(2)N(6) derivative, [Cu(2)-[1,2-bis(6-(bis(6-methylpyridin-2-yl)methyl)pyridin-2-yl)ethane]-(NCMe)(2)](PF(6))(2) (2); ...

Conductivity and permittivity of the quasi-one-dimensionsional organictransfer salt (TMTTF)2PF6 have been measured at low frequencies (10^3-10^7 Hz)between room temperature down to below the temperature of transition into thespin-Peierls state. We interpret the huge real part of the dielectricpermittivity (up to 10^6) in the localized state as the ...

The title compounds are accessed by sequences starting with racemic and enantiomerically pure [(eta5-C5H5)Re(NO)(PPh3)(CH3)]. Reactions with chlorobenzene/HBF4, PPh2H, and tBuOK give the phosphido complex [(eta5-C5H5)Re(NO)(PPh3)(PPh2)] (3). Reactions with Ph3C+ BF4-, PPh2H, and tBuOK give the methylene homologue [(eta5-C5H5)Re(NO)(PPh3)(CH2PPh2)] (9). Treatment of 3 or 9 with nBuLi or tBuLi and ...

The colorless square-planar cluster [CuN(SiMe3)2] 4, which contains four Cu(I) ions with four bridging amide groups, was studied as a precursor for chemical and photochemical vapor deposition of Cu metal. The cluster phosphoresces in CH2Cl2 solution and in the solid state at room temperature. Its electronic spectrum in CH 2Cl2 consists of two intense bands which are assigned ...

The tridentate bis-phosphinimine ligands O(1,2-C(6)H(4)N=PPh(3))(2)1, HN(1,2-C(2)H(4)N=PR(3))(2) (R = Ph 2, iPr 3), MeN(1,2-C(2)H(4)N=PPh(3))(2)4 and HN(1,2-C(6)H(4)N=PPh(3))(2)5 were prepared. Employing these ligands, monometallic Pd and Ni complexes O(1,2-C(6)H(4)N=PPh(3))(2)PdCl(2)6, RN(1,2-CH(2)CH(2)N=PPh(3))(2)PdCl][Cl] (R = H 7, Me 8), ...

The compounds fac-(?(3)-PDP)Mo(CO)(3) {1; PDP = 2-[[2-(1-(pyridin-2-ylmethyl)pyrrolidin-2-yl)pyrrolidin-1-yl]methyl]pyridine}, [(cis-?-PDP)Mo(NO)(CO)]PF(6) ([cis-?-3]PF(6)), [(cis-?-PDP)Mo(NO)(CO)]PF(6) ([cis-?-3]PF(6)), ...

While ruthenium tris(diimine) complexes have been extensively studied, this is not the case with ruthenium bis(diimine)X(2) complexes where X represents a pyridinyl-based ligand. The synthesis of a new complex ([2][PF(6)](2)) bearing two ambident Schiff base ligands (HL) constituted by the assembly of phenol and pyridinyl moieties is reported. Thanks to ...

Altering and modifying important physicochemical properties of aqueous surfactant solutions is highly desirable as far as potential applications of such systems are concerned. Changes in the properties of aqueous solutions of a common anionic surfactant sodium dodecyl sulfate (SDS) are assessed in the presence of a common and popular 'hydrophobic' ionic liquid 1-butyl-3-methylimidazolium ...

Two scorpionates sodium trihydro(3-nitro-pyrazol-1-yl)borate (Na[H(3)B(3-(NO(2))pz)]) and sodium hydrotris(3-nitro-pyrazol-1-yl)borate (Na[HB(3-(NO(2))pz)(3)]), featuring electron withdrawing substituents, have been synthesized in high yield starting from 3(5)-nitropyrazole and sodium borohydride. The treatment of CuX (X = (CH(3)CN)(4)PF(6), Cl or ...

Synthetic approaches to 6,6'-disubstituted-2,2'-bipyridine ligands bearing carboxylic acid substituents at the 4,4' or 5,5'-positions are described. Copper(I) complexes with these ligands have been prepared for use in copper-based dye-sensitized solar cells. The single-crystal structures of 6,6'-dimethyl-2,2'-bipyridine-4,4'-dicarboxylic acid (H(2)4), [H(3)6][CF3CO2].2CF3CO2H ...

The surface structures of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C(n)MIM][TFSI], n=2,4,6) are studied by high-resolution Rutherford backscattering spectroscopy. The average composition of the surface molecular layer is very close to the stoichiometric composition, showing that neither ion is enriched in the surface layer. A detailed analysis indicates ...

The surface structures of 1-alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([CnMIM][TFSI], n=2,4,6) are studied by high-resolution Rutherford backscattering spectroscopy. The average composition of the surface molecular layer is very close to the stoichiometric composition, showing that neither ion is enriched in the surface layer. A detailed analysis indicates ...

... Our test liquid is a Di- akylimidazolium based ionic liquids with the bis(trifluoromethanesulfonyl)imide (TFSI- = N(SO2CF3)2-) anion (ImlORTFSI). ...

Mar 1, 2011 ... Results indicate data fusion analysis techniques can be used to map ... RF air- plasma for activating the dust and for organic .... amounts of RTIL, lithium trifluoromethanesulfonimide LiTFSi, and alumina nanoparticles. ...

We present the electrochemical characterization studies of symmetric poly (styrene-b-ethylene oxide) copolymers (SEO) and Li[N(SO2CF3)2] (LiTFSI). The molar ratio of Li to ethylene monomers, r, was varied from 0.02 to 0.10. The ionic conductivity of these electrolytes increases with molecular weight over the entire range of temperatures and r values examined. Preliminary data ...

The complexes [RuCl(PPh(3))(2)(P,N,N'-PPh(3-)(x)()(py)(x)())]PF(6) (x = 2, 1b; 3, 1c; py = 2-pyridyl) were isolated from the reaction of RuCl(2)(PPh(3))(3) with 1 equiv of PPh(3-)(x)()(py)(x)() and NH(4)PF(6) in acetone. Crystals of 1b (C(52)H(43)ClF(6)N(2)P(4)Ru) are monoclinic, a = 17.795(2), b = 11.375(4), and c = 23.343(2) �, beta = 97.012(8) ...

Recently, landfill sites have been emerging in greenhouse warming scenarios as a significant source of atmospheric CH4. landfill management strategies have mainly addressed the problem of preventing groundwater contamination and reduction of leachate generation. Being one of the largest source of anthropogenic CH4 emission , the final cover system should also be designed for minimizing the biogas ...

Regenerative solar cells based on nanocrystalline TiO2 (anatase) and the dye Ru(deeb)(bpy)2(PF6)2, where deeb is 4,4'-(CO2CH2CH3)2-2,2 '-bipyridine and bpy is 2,2'-bipyridine, have increased efficiency when in the presence of a high concentration of cations with a large charge-to-radius ratio. Concentration-dependent photoluminescence (PL) quenching and ...

We have continued the study of halide nucleophilicity in ionic liquids, concentrating on the effect of changing the anion ([BF(4)](-), [PF(6)](-), [SbF(6)](-), [OTf](-), and [N(Tf)(2)](-)) when the cation is [bmim](+) (where bmim = 1-butyl-3-methylimidazolium). It was found that the nucleophilicities of all the halides were lower in all of the ionic ...

This paper presents the nonlinear conduction with a negative differential resistance (NDR) and switching and hysteresis phenomena found in the mixed-valence misfit-layer compound (YbS)1.25CrS2. Nonlinear I V characteristics are measured at various temperatures. They are accompanied with large voltage fluctuations near the threshold field for the onset of nonlinear ...

We present the synthesis, characterization, and photophysical properties of three luminescent rhenium(I) polypyridine fluorous complexes [Re(Me(2)bpy)(CO)(3)(L)](PF(6)) (Me(2)bpy = 4,4'-dimethyl-2,2'-bipyridine; L = 3-amino-5-(N-((3-perfluorooctyl)propyl)aminocarbonyl)pyridine (py-Rf-NH(2)) (1), ...

A series of Ru(II) and Os(II) tris-chelate complexes with new bidentate 2-pyridylquinoline ligands have been synthesized and fully characterized by EA,1H-NMR and FAB-MS techniques. The new ligands are: L1 = 4-p-methoxyphenyl-6-bromo-2-(2'- pyridyl)quinoline (mphbr-pq) and L2 = 4-p-hydroxyphenyl-6-bromo-2-(2'-pyridyl)-quinoline (hphbr-pq). The complexes studied are: ...

The reactions of K(2)PtCl(4) with N,N'-diphenylformamidine (HDPhF) and N,N'-di-p-tolylformamidine (HDTolF) produce the trans square-planar compounds PtCl(2)(HDPhF)(2), 1a, and PtCl(2)(HDTolF)(2), 1b. Compound 1a crystallizes as yellow parallelepipeds in the space group P2(1)/c with two independent molecules in the asymmetric unit and unit cell dimensions a = 23.427(7) �, b = 16.677(6) �, c = ...

The new 2-phenylthiocarbamoyl-1,3-dimesitylimidazolium inner salt (IMes�CSNPh) reacts with [AuCl(L)] in the presence of NH(4)PF(6) to yield [(L)Au(SCNPh�IMes)](+) (L = PMe(3), PPh(3), PCy(3), CNBu(t)). The carbene-containing precursor [(IDip)AuCl] reacts with IMes�CSNPh under the same conditions to afford the complex [(IDip)Au(SCNPh�IMes)](+) (IDip = ...

A series consisting of a tungsten anion, radical, and cation, supported by the N-heterocyclic carbene IMes (1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) and spanning formal oxidation states W(0), W(I), and W(II), has been synthesized, isolated, and characterized. Reaction of the hydride CpW(CO)2(IMes)H with KH and 18 crown 6 gives the tungsten anion [CpW(CO)2(IMes)]-[K(18 ...

The thermal stability of the neat LiPF6 salt and of 1 molal solutions of LiPF6 in prototypical Li-ion battery solvents was studied with thermogravimetric analysis (TGA) and on-line FTIR. Pure LiPF6 salt is thermally stable up to 380 K in a dry inert atmosphere, and its decomposition path is a simple dissociation ...

A sensitive and selective electrochemical method for the determination of isoproterenol (ISPT) was developed using multiwall carbon nanotubes and a room temperature ionic liquid (i.e. 1-butyl-3-methylimidazolium hexafluoro phosphate, ([C4mim]-[PF6])). This multiwall carbon nanotubes ionic liquid electrode (MWCNTILEE) is a very good ...

First-row transition metal-halide complexes of tris(2-dimethylaminophenyl)amine, L(Me), have been synthesized and characterized. X-ray crystallographic studies on [Co(L(Me))Br]BPh(4), [Ni(L(Me))Cl]BPh(4), [Fe(L(Me))Cl]BPh(4), and [Cu(L(Me))Cl]BF(4) have been performed, and in all cases the ligand produces five-coordinate complexes with distorted trigonal bipyramidal coordination geometries. Where ...

In this study, we investigated the tetraalkylammonium salts of the weakly coordinating fluorinated alkoxyaluminates [pftb](-) ([Al(O(C(CF(3))(3))(4)](-)), [hfip](-) ([Al(OC(H)(CF(3))(2))(4)](-)) and [hftb](-) ([Al(OC(CH(3))(CF(3))(2))(4)](-)) in order to obtain information on their undisturbed spectral and structural properties, as well as to study their electrochemical behavior ...

The multi-instability of the electronic structure of (EDO-TTF)2PF6, where EDO-TTF means ethylene-dioxytetrathiafulvalene, is reviewed. This complex showed the metal-insulator transition at 280 K associated with distinct molecular deformations. The mechanism is interpreted as the cooperation of Peierls transition, charge ordering, and the order-disorder transition of the countercomponent. The ...

The synthesis of novel, monocationic iridium(III) photosensitisers (Ir-PSs) with the general formula [Ir(III)(C^N)(2)(N^N)](+) (C^N: cyclometallating phenylpyridine ligand, N^N: neutral bidentate ligand) is described. The structures obtained were examined by cyclic voltammetry, UV/Vis and photoluminescence spectroscopy and X-ray analysis. All iridium complexes were tested for their ability as ...

Stable gold nanoparticles (AuNPs) were prepared by simple laser ablation of an Au foil placed inside or outside four ionic liquids (ILs), without the addition of any external chemical reagent. Irregular spherical AuNPs with a diameter range of 5 to 20 nm were produced after laser ablation of an Au foil located inside or outside the ILs 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI�BF4), ...

Stable gold nanoparticles (AuNPs) were prepared by simple laser ablation of an Au foil placed inside or outside four ionic liquids (ILs), without the addition of any external chemical reagent. Irregular spherical AuNPs with a diameter range of 5 to 20 nm were produced after laser ablation of an Au foil located inside or outside the ILs 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMI.BF4), ...

A series of 1-alkyl-4-aryl-1,2,3-triazoles (1-methyl-4-phenyl-1,2,3-triazole (1a); 1-propyl-4-phenyl-1,2,3-triazole (1b); 1-benzyl-4-phenyl-1,2,3-triazole (1c); 1-propyl-4-p-tolyl-1,2,3-triazole (1d)) have been prepared through a one-pot procedure involving in situ generation of the alkyl azide from a halide precursor followed by copper catalysed alkyne/azide cycloaddition (CuAAC) with the ...

Ruthenium(II) complexes of the primary phosphines PH2Fc and PH2CH2Fc and the secondary phosphine PH(CH2Fc)2, including [(p-cymene)RuCl(L)2](PF6) (p-cymene = p-iPrC6H4Me, L = PH2CH2Fc and PH(CH2Fc)2, 2b and 2c, respectively) and trans-[RuCl2(L)4] (L = PH2Fc, PH2CH2Fc, and PH(CH2Fc)2, 3a-c, respectively) were prepared and characterized ...

Palladium complexes containing 2,7-bis(mesitylimidazolylidenyl)naphthyridine (NHC-NP) have been synthesized and characterized. Reaction of [{Ag(3)(NHC-NP)(2)}(PF(6))(3)] with [Pd(PhCN)(2)Cl(2)] provided an unusual dipalladium complex bridged by two NHC-NP units, forming a 20-membered dinuclear metallacycle [{Pd(2)(NHC-NP)(2)Cl(2)}(PF(6))] (2) in high ...

The four- and five-coordinate complexes [(CNC)NiX(2)] (X = Cl, Br, I), [(CNC)NiX]PF(6) (X = Cl, Br) and [(CNC)NiCl]Cl�H(2)O have been isolated, where CNC is the bis(N-butylbenzimidazolin-2-ylidene)-2,6-pyridine pincer ligand. A five-coordinate geometry is rare for this class of complex. Where amenable, the complexes have been ...

Molecular dynamics (MD) simulations have been performed for prototype models of polymer electrolytes in which the salt is an ionic liquid based on 1-alkyl-3-methylimidazolium cations and the polymer is poly(ethylene oxide), PEO. The MD simulations were performed by combining the previously proposed models for pure ionic liquids and polymer electrolytes containing simple inorganic ions. A ...

Molecular dynamics (MD) simulations have been performed for prototype models of polymer electrolytes in which the salt is an ionic liquid based on 1-alkyl-3-methylimidazolium cations and the polymer is poly(ethylene oxide), PEO. The MD simulations were performed by combining the previously proposed models for pure ionic liquids and polymer electrolytes containing simple inorganic ions. A ...

The coordination chemistry of the tetradentate pyridyl-thiazole (py-tz) N-donor ligand 6,6'-bis(4-phenylthiazol-2-yl)-2,2'-bipyridine (L1) has been investigated. Reaction of L1 with equimolar copper(II) ions results in the formation of the single-stranded mononuclear complex [Cu(L1)(ClO4)2] (1), whereas reaction with copper(I) ions results in the double-stranded dinuclear ...

The reaction of potassium hydrotris(methimazolyl)borate {KTm = HB(mt)(3)} with [{Rh(cod)(mu-Cl)}(2)] gave [Rh(cod)Tm] while the complexes [Rh(CO)(PR(3))Tm] (R = Ph or NMe(2)) and [Rh{P(OPh)(3)}(2)Tm] were isolated from light-sensitive [Rh(CO)(2)Tm], prepared in situ from KTm and [{Rh(CO)(2)(mu-Cl)}(2)], and PR(3) or P(OPh)(3) under CO. The complexes [Rh(cod)Tm] and [Rh(CO)(PR(3))Tm] (R = Ph or ...

We report in this work the synthesis and characterization of new mono- and dinuclear complexes of formulas: [Re(bpy)(CO)(3)(4,4'-azpy)](CF(3)SO(3)), 1 (bpy = 2,2'-bipyridine, 4,4'-azpy = 4,4'-azobis(pyridine)); [(bpy)(CO)(3)Re(4,4'-azpy)Ru(NH(3))(5)](PF(6))(3).CH(3)CN.6H(2)O, 2 and the heterodinuclear species [(bpy)(CO)(3)Re(4,4'-azpy)Ru(NH(3))(5)](4+), 3 ...

Derivatization of 5,5-bis(3-hydroxyphenyl)-2,2-bipyridine to give two new ligands, 3 and 4, which possess terminal alkene functionalities is described. The syntheses and characterization of the palladium(II) complexes [Pd(3)2][BF4]2 and [Pd(4)2][BF4]2, and the related [Pd( 2)2][BF4]2 in which 2 is 5,5-bis(3-methoxyphenyl)-2,2-bipyridine are reported. The labile nature of the ligand leads to ...

The new ligand dipyrazinyl sulfoxide (also named sulfinyldipyrazine and abbreviated as pyz(2)SO) and a series of its metal complexes including {[Ag(pyz(2)SO)](NO(3)).CH(3)CN}(infinity) (1), {[Ag(pyz(2)SO)](PF(6))}(infinity) (2), [Ag(3)(pyz(2)SO)(2)(ClO(4))(3)](infinity) (3), [Ag(pyz(2)SO)(CF(3)CO(2))](infinity) (4), ...

The liquid-liquid microextraction (LLME) was developed for extracting sudan dyes from red wine and fruit juice. Room temperature ionic liquid was used as the extraction solvent. The target analytes were determined by high-performance liquid chromatography. The extraction parameters were optimized. The optimal conditions are as follows: volume of [C(6) ...

Phenanporphodimethene (1) is a porphyrin analogue which has a dipyrromethene unit replaced by a 1,10-phenanthroline moiety. This modification effectively coverts a dianionic porphyrin to a monoanionic porphyrin analogue with a porphyrin-like N4 coordination sphere. The ligand 1 forms copper and nickel hexafluorophosphate complexes, Cu-1 and Ni-1, respectively. X-ray crystallographic analysis of ...

The surface films formed on commercial LiNi0.8Co0.15Al0.05O2 cathodes (ATD Gen2) charged from 3.75V to 4.2V vs. Li/Li+ in EC:DEC - 1M LiPF6 were analyzed using ex-situ Fourier transform infrared spectroscopy (FTIR) with the attenuated total reflection (ATR) technique. A surface layer of Li2CO3 is present on the virgin cathode, probably from reaction of the ...

A simple, highly sensitive and environment-friendly method for the determination of trace amount of nickel ion in different matrices is proposed. In the preconcentration step, the nickel from 10 mL of an aqueous solution was extracted into 500 microL of ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate [C(4)MIM][PF(6)], containing PAN as ...

The heterotrinuclear complexes, [(CpTiCl(2)Cp-PPh(2))(2)Cu](+) (2) (as PF(6)(-) salt) and [CpTiCl(2)Cp-PPh(2)](2)CuCl (3), containing two electron-poor Ti(IV) fragments and one electron-rich Cu(I) center, and a tetrametallic species, [(CpTiCl(2)Cp-PPh(2))Cu(mu-Cl)](2) (4), were synthesized and characterized. The trinuclear nature of 2 ...

We performed the crystal structure analyses of the pressure-induced organic superconductor ?''-(DODHT)2PF6 (DODHT denotes (1,4-dioxane-2,3-diyldithio)dihydrotetrathiafulvalene) at the hydrostatic pressures of 0.75 GPa and 1.9 GPa in order to investigate the key parameter for inducing the superconductivity. At ambient pressure, ...

In this study, the ionic conductivity of a nanocomposite polymer electrolyte system (PEO�LiPF6�EC�CNT), which has been produced using solution cast technique, is obtained using artificial neural networks approach. Several results have been recorded from experiments in preparation for the training and testing of the network. In the experiments, ...

The ligand-bridged complex cis,cis-[(bpy)2ClRu(pz)RuCl(bpy)2]2+ as the PF6- salt, (1)(PF6)2, is stabilized toward photochemical ligand loss in poly(methyl methacrylate) (PMMA). Stabilization allows measurement of metal-to-ligand charge transfer (MLCT) photophysical properties--emission and transient absorption. This includes appearance of an intervalence ...

Structures of Cu(I) and Cu(II) complexes of sterically hindered tripyridine ligands RL = tris(6-methyl-2-pyridyl)methane (HL), 1,1,1-tris(6-methyl-2-pyridyl)ethane (MeL), and 1,1,1-tris(6-methyl-2-pyridyl)propane (EtL), [Cu(RL)(MeCN)]PF(6) (1-3), [Cu(RL)(SO(4))] (4-6), and [Cu(RL)(NO(3))(2)] (7-9), have been explored in the solid state ...

In the exploration of sulfur-delivery reagents useful for synthesizing models of the tetracopper-sulfide cluster of nitrous oxide reductase, reactions of Ph(3)Sb?S with Cu(I) complexes of N,N,N',N'-tetramethyl-2R,3R-cyclohexanediamine (TMCHD) and 1,4,7-trialkyltriazacyclononanes (R(3)tacn; R = Me, Et, iPr) were studied. Treatment of ...

Preparation of a triisocyanide ligand, 1,3,5-tris[(4-isocyano-3,5-diisoproyl-phenyl)ethynyl]benzene (5), is presented. Ligand 5 is obtained in three steps in 76% overall yield. Reaction of 5 with (eta5-Cp*)Rh(Cabs,s')(Cabs,s'= 1,2-S2C2B10H10-S,S') produced the rhodadithiolene adduct [[(eta5-Cp*)Rh(Cabs,s')(CNC6H2iPr2-2,6-CC-3)]3C6H3-1,3,5] (6). Ligand 5 reacts with ...

The redox properties of Fe and Zn complexes coordinated by an alpha-diimine based N(4)-macrocyclic ligand (TIM) have been examined using spectroscopic methods and density functional theory (DFT) computational analysis. DFT results on the redox series of [Zn(TIM*)](n) and [Fe(TIM*)](n) molecules indicate the preferential reduction of the alpha-diimine ligand moiety. In addition to the previously ...

A key feature of tris(oxazolinyl)ethane ("trisox") ligands, which have shown broad scope in asymmetric catalysis, is the orientation and steric demand of their oxazoline substituents. This, along with the modularity of their synthesis determines their coordination chemistry. The possibility to combine oxazolines, in which the stereogenic centers adjacent to the N-donor atoms have different ...

As an extension of prior studies involving the linear quaterpyridine ligand, 5,5'''-dimethyl-2,2':5',5'':2'',2'''-quaterpyridine 1, the synthesis of the related expanded quaterpyridine derivatives 2 and 3 incorporating dimethoxy-substituted 1,4-phenylene and tetramethoxy-substituted 4,4'-biphenylene bridges between pairs of 2,2'-bipyridyl groups has been carried out via double-Suzuki coupling ...

A two-step procedure for the preparation of hybrid complexes based on electroactive tetrathiafulvalene (TTF)- functionalized o-P(2) diphosphanes (o-P(2) = 3,4-dimethyl-3,4-bis(diphenylphosphino)tetrathiafulvalene) and inorganic C(3)-symmetrized Mo(3)Q(4) (Q = S, Se) clusters, namely, [Mo(3)S(4)Cl(3)(o-P(2))(3)]PF(6) ...

We demonstrated thermal transitions and physical gelation of binary ionic salts through interionic interactions, which consist of pyrrolidinium-N-propanesulfonate zwitterionic compound (PyrZIC) and lithium bis(trifluorosulfonyl)imide (LiTFSI). The transition behaviors of binary ionic gels were attributed to conformational changes in the cations and anions of PyrZIC and ...

Ionic liquids based on methylpropylpyrrolidinium (MPPY) and methylpropylpiperidinium (MPPI) cations and bis(trifluoromethanesulfionyl)imide (TFSI) anion have been synthesized and characterized by thermal analysis, cyclic voltammetry, impedance spectroscopy as well as gavanostatic charge/discharge tests. 10 wt% of vinylene carbonate (VC) was added to the electrolytes of 0.5 M ...

From the system MF(2)/PF(5)/XeF(2)/anhydrous hydrogen fluoride (aHF), four compounds [Sr(XeF(2))(3)](PF(6))(2), [Pb(XeF(2))(3)](PF(6))(2), [Sr(3)(XeF(2))(10)](PF(6))(6), and [Pb(3)(XeF(2))(11)](PF(6))(6) were isolated and characterized by Raman spectroscopy and X-ray ...

The applications of room-temperature ionic liquids in the nuclear fuel cycle and radiation chemistry depend on a comprehensive knowledge of their stability and chemical properties under radiation conditions. In this work, the effect of gamma radiation on pure ionic liquid [bmim][PF6] was investigated in detail. The radiolysis of [bmim][PF6] leads to an ...

Significant differences in the manifestation of spin-crossover properties of the mesogen compounds [Fe L 2] X with oxysalicylidene- N'-ethyl- N-ethylenediamine ligands L and anions X = PF{6/?} and SCH? have been found by means of electron paramagnetic resonance. The electron paramagnetic resonance data and the quantum-chemical calculation within the ...

The local structure around Li cation in ionic conducting polymer PEO-LiTFSI was studied using neutron scattering with lithium isotope substitute technique. The result shows not only the well defined Li-O, Li-C and Li-H bond distances and coordination numbers but also a considerable degree of extended-range ordering of polymer matrix. The Li ions are bonded on average to five ...

Based on classical molecular dynamics simulations, we discuss the impact of Coulombic interactions on a comprehensive set of properties of room temperature ionic liquids (RTILs) containing 1,3-dimethylimidazolium (MMIM(+)), N-butylpyridinium (BPY(+)), and bis(trifluoromethane sulfonyl)imide (TFSI(-)) ions. Ionic transport is found to be noticeably hindered by the excessive ...

The phase behavior and the ionic conductivity of ionic liquids (ILs) of the N-alkyl-N-alkylpyrrolidinium (PYR(xy)) cation and the bis(trifluoromethanesulfonyl)imide (TFSI) anion are investigated upon addition of LiTFSI salt. We compare the case of two new ILs of the PYR(2y) cation (where 2 is ethyl and y is butyl or propyl) with that of the PYR(14) (where ...

Poly(styrene-b-ethylene oxide)/lithium bis(trifluoromethane)sulfonimide (SEO/LiTFSI) is of interest in battery applications since the doped PEO phase can conduct ions and the glassy PS phase can prevent dendrite growth upon recharging. It is believed that the LiTFSI molecules are localized in the PEO microphases. Previous studies have shown that highly ...

Ionic liquids thermodynamically compatible with Li metal are very promising for applications to rechargeable lithium batteries. 1-methyl-3-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (P(13)TFSI) is screened out as a particularly promising ionic liquid in this study. Dimensionally stable, elastic, flexible, nonvolatile polymer gel electrolytes (PGEs) with high ...

Ionic liquids thermodynamically compatible with Li metal are very promising for applications to rechargeable lithium batteries. 1-methyl-3-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (P₁₃TFSI) is screened out as a particularly promising ionic liquid in this study. Dimensionally stable, elastic, flexible, nonvolatile polymer gel electrolytes ...

We have investigated possible anticipated advantages of ionic-liquid electrolytes for use in lithium-ion batteries. Thermal stabilities and phase behavior were studied by thermal gravimetric analysis and differential scanning calorimetry. The ionic liquids studied include various imidazoliumTFSI systems, pyrrolidiniumTFSI, BMIMPF{sub 6}, BMIMBF{sub 4}, and ...

The reactions of LCuCl (L = 2,4-bis((2,6-diisopropylphenyl)imido)pentane (L(iPr)), 2,4-bis((2,6-diisopropylphenyl)imido)-3-chloropentane (L(CliPr))) with the phenolates TlOAr (Ar = C(6)H(3)Me(2), C(6)H(4)OMe, C(6)H(4)tBu) and NaOC(6)H(3)(tBu)(2) were explored. Novel three-coordinate Cu(II)-phenolates, LCuOAr, were isolated from the reactions with the thallium phenolates and ...

The self-assembly of polymeric open networks from different Ag(I) salts and the potentially tetradentate ligand hexamethylenetetramine (hmt) has revealed a variety of possible structural motifs, depending on the reagent ratios and the counterions, that are discussed in comparison. Three new Ag(I) coordination polymers are here described, namely ...

New dyes of the type Ru(II)(bdmpp)(bpy) [where bdmpp is 2,6-bis(3,5-dimethyl-N-pyrazoyl)pyridine and bpy is 2,2'-bipyridine-4,4'-dicarboxylic acid] are prepared and characterized by infra-red (IR), mass (MS) and electrospray mass spectroscopy (ES-MS) as well as 1H NMR (1D and 2D) spectroscopies. The compounds present broad and very high intensity MLCT absorption bands in the visible and can be ...

Poly(styrene)-block-poly(ethylene oxide) (SEO) is a candidate material for electrolytes for rechargeable lithium metal batteries. The PS phase suppresses lithium dendrite growth on the anode during recharge, and the PEO phase solvates lithium bis(trifluoromethane)sulfonimide (LiTFSI) salt to form conducting pathways. Complete electrochemical characterization of ...

We explore the thermodynamics of block copolymers doped with the salt, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and the ionic liquid, imidazolium bis(trifluoromethanesulfonyl) imide ([Im][TFSI]). The block copolymers comprise of polyethylene oxide (PEO), a polymer with a higher dielectric constant, and polystyrene (PS), a polymer with a lower ...

Organic soft linear actuators made of conducting polymers such as polypyrrole (PPy) films are of special interest for application in microelectromechanical systems (MEMS) because they generate large electrochemomechanical stress and strain. In this work, a PPy actuator was fabricated by galvanostatic electropolymerization. The electrochemical deformation behaviors of the PPy actuator were ...

The microstructured block copolymer electrolyte poly(styrene)-block-poly(ethylene oxide) (PS-PEO) doped with lithium bis(trifluoromethanesulfonimide) (LiTFSI) is of interest for battery applications because LiTFSI segregates to the PEO phase to form ion-conductive channels, while the PS phase provides mechanical strength. Ionic conductivity in this system ...

When the ortho-metallated complexes cis-[Pt(kappa(2)-C6H3-5-R-2-PPh2)2] (R = H 1, Me 2) are either heated in toluene or treated with CO at room temperature, one of the four-membered chelate rings is opened irreversibly to give dinuclear isomers [Pt2(kappa(2)-C6H3-5-R-2-PPh2)2(mu-C6H3-5-R-2-PPh2)2] (R = H 10, Me 11). A single-crystal X-ray diffraction study shows the Pt...Pt separation in 10 to be ...

We photo-exited a charge-ordered organic salt (EDO-TTF)2PF6 with sub-10-fs optical pulses. The photo-induced metallic phase appeared within 80-fs after pumping, characterized by large changes in reflectivity (DELTA R/R~0.8) followed by strong coherent phonon modulation

of typical lithium-ion battery electrolytes based on lithium hexafluorophosphate LiPF6 and carbonate solvents. Because of the nature of the anionic clay particulates creating the gel structure, near-unity lithium-ion that significantly reduce the observed lithium-ion transference number, care must be taken to minimize or eliminate

This first volume of the five volume set begins with a CPDR overview and then details the PF magnet system, manufacturing R&D, Westinghouse R&D, the central solenoid, the PF 5 ring coil, the PF 6/7 ring coil, quality assurance, and the system design description.

The liquid structure of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate, [BMIM]PF(6), was investigated by neutron diffraction with H/D substitution method, where the hydrogen atoms in the imidazolium ring were partially deuterated. The local structures around the ring hydrogen atoms in liquid are very similar to those estimated from the ...

) images. We may add here that TEM analysis of uncapped gold nanoparticle�DNA films as well as car- boxylic. Analysis of the mass showed that the powder was mainly made up of metallic lithium. This indicated, 146 , 2397. Linear Superclusters of Colloidal Gold Particles by Electrostatic Assembly on DNA

... Abstract : The compounds Ru(bpy)2(BTL)(PF6)2 and Ru(deeb)2(BTL)(PF6) 2, where bpy is 2,2(prime)-bipyridine, deeb is 4,4(prime)-(C2H5CO2)2 ...

The ability of a feruloyl esterase (AnFaeA), either in free or immobilised (cross-linked enzyme aggregates) form, to catalyse the esterification of glycerol, a major by-product of the biodiesel industry, with sinapic acid was studied in four hexafluorophosphate anion-containing ionic liquids: ([Bmim][PF(6)], ...

The thermal stability of imidazolium based ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate ([BMI][PF6]) in a confined geometry is analysed. It has been found that the decomposition of IL starts at an earlier temperature upon confinement in nanopores. Early decomposition of confined IL is due to the breaking of end group alkyl chains of ...

this time, substantial efforts have been devoted to op- timizing this reaction since the b-amino ketones reaction time was strictly main- tained. The use of another ionic liquid, [bmim]PF6, as re- action solvent the enanti- oselectivity of the reaction but required a longer, albeit reasonable, 2 hour reaction time

New denitrifying bacteria that could degrade pyridine under both aerobic and anaerobic conditions were isolated from industrial wastewater. The successful enrichment and isolation of these strains required selenite as a trace element. These isolates appeared to be closely related to Azoarcus species according to the results of 16S rRNA sequence analysis. An isolated strain, pF6, metabolized ...

, modeling the liquid-liquid equilibrium of IL-alcohol-water systems is of interest. The ternary system IL-octanol-water is also of particular interest since octanol-water partition coefficients are widely used as a measure hexafluorophosphate ([bmim][PF6]) and the alcohol is octanol. For the octanol-water binary, four parameter solutions