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Photoelectron Spectroscopy of Atomic Clusters - Laser Vaporization Source

Photoelectron Spectroscopy - Electrospray Source
Laser vaporization source

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. An electrospray ion source, in which a solution sample containing the anions is sprayed through a syringe needle under negative bias, is designed and developed to produce multiply charged anions. 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.

  1. Tuning the electronic properties of the golden buckyball by endohedral doping: M@Au16(-) (M=Ag,Zn, In).
  2. Structural Transition of Gold Nanoclusters: From the Golden Cage to the Golden Pyramid .
  3. Detecting Weak Interactions between Au- and Gas Molecules: A Photoelectron Spectroscopic and Ab Initio Study.
  4. Aromaticity and Antiaromaticity in Transition-Metal Systems.
  5. Observation of Entropic Effect on Conformation Changes of Complex Systems Under Well-Controlled Temperature Condition.