High resolution photodetachment spectroscopy of negative ions via slow photoelectron imaging

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)]


Published in:
Journal of Chemical Physics, 121, 13, 6317-6322
Year:
2004
Keywords:
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
0021-9606
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)
Laboratories:




 Record created 2010-04-01, last modified 2018-03-17


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