Vibrational spectrum of CO2− in an argon matrix

✍ Scribed by Marilyn E. Jacox; Dolphus E. Milligan

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 697 KB
• Volume: 28
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(74)80043-6

✦ Synopsis

Absorptions wkch appear near 1600 cm-l on codepasitian at 14 K of kc02 mivtures with OI! &Ii met31 have been assigned to vg of an hi?.,.CO; ion pti, with 2n OCO valence an$e nex 130'. Molecular awegates contribute signiticantly to ihe observed spectrum.

'electron transmission spectroscopy experiments of Sanche and Schulz [3], a progression of eibteen viirational levels was observed starting at 3.142 0.04 eV, with a fust vibrational spacing of 138 meV (1113 cm-l).

The estiinated lifetime of CO, formed in the electron capture studies is far too short to permit its detection in a ma5s spectrometer. However, CO, was identified in the double maSs spectrometer studies of Paulson [4], in which the anion was produced by collisions with heavy species >uch as NO: rather than ti'th el,ectrons. Cooper and Compton IS] have also .observed long-hved CO, ions in the gas phase following the collisiqn of electrons or cesium atoms with organic anhydrides, in which the CO, group is initially bent at : 'Work supportedin paitbyNAS& * Posthumdus contribution.

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