Photoelectron Spectroscopy - Low Temperature
Quick Specs
- Ion temperature control between 10 K and 400 K
- Enables research flexibility such as studies of weakly bound species
This experimental facility couples an electrospray ionization source to a magnetic-bottle time-of-flight photoelectron spectrometer. It has been developed to investigate multiply charged anions and solution phase species in the gas phase. A low-temperature electrospray ion source, in which a solution sample containing the anions is sprayed through a syringe needle under negative bias, produces multiply charged anions. This facility features a low temperature ion trap, which can control ion temperature between 10 and 400K. This has significantly expanded our research capability and flexibility, allowing us to study weakly bound species, intermediates, and temperature-dependent conformation changes, as well as perform high-resolution spectroscopic studies on multiply charged anions and solution phase species. Ion-trap-time-of-flight mass spectrometry is used to analyze the formed anions. Size- and charge-selected photodetachment photoelectron spectroscopy is used to obtain information about the stability and electronic structure of the anions and their microscopic solvation. A wide range of anionic species, important in organic, inorganic, and biochemistry, as well as in solid materials and catalysis, are being investigated.
All Related Publications Related Publications
- Observation of Entropic Effect on Conformation Changes of Complex Systems Under Well-Controlled Temperature Condition.
- Negative Electron Binding Energies Observed in a Triply Charged Anion: Photoelectron Spectroscopy of 1-Hydroxy-3, 6, 8-Pyrene-Trisulfonate .
- High Resolution and Low-Temperature Photoelectron Spectroscopy of an Oxygen-Linked Fullerene Dimer Dianion: C120O2-.
- On The Chemical Bonding of Gold In Auro-Boron Oxide Clusters AunBO-(n=1-3).
- Doping the Golden Cage Au16- with Si, Ge, and Sn.
