A technique for high resoln. anion photodetachment spectroscopy is presented that combines velocity map imaging and anion threshold photodetachment. This method, slow electron velocity-map imaging, provides spectral line widths of better than 1 meV. Spectra over a substantial range of electron kinetic energies are recorded in a single image, providing a dramatic redn. of data acquisition time compared to other techniques with comparable resoln. We apply this technique to at. iodine and the van der Waals cluster I.CO2 as test systems, and then to the pre-reactive Cl.D2 complex where partially resolved structure assigned to hindered rotor motion is obsd. [on SciFinder (R)]
Title
High resolution photodetachment spectroscopy of negative ions via slow photoelectron imaging
Published in
Journal of Chemical Physics
Volume
121
Issue
13
Pages
6317-6322
Date
2004
ISSN
0021-9606
Note
CAN 141:429115
73-6
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Department of Chemistry,University of California,Berkeley,CA,USA.
Journal
written in English.
146301-28-2; 405158-41-0 Role: CPS (Chemical process), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging demonstrated for); 149061-47-2; 405158-41-0D Role: FMU (Formation, unclassified), PRP (Properties), FORM (Formation, nonpreparative) (high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging demonstrated for); 20461-54-5 (Iodine(1-) Role: PRP (Properties) (high resoln. photodetachment spectroscopy of neg. ions via slow photoelectron imaging demonstrated for)
Record creation date
2010-04-01