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Collision-Induced Absorption by CO2in the Region of ν1, 2ν2

✍ Scribed by Y.I. Baranov; A.A. Vigasin

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
94 KB
Volume
193
Category
Article
ISSN
0022-2852

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✦ Synopsis

Collision-induced absorption (CIA) by CO2 is measured in the 1100-1600 cm-1 range using a Fourier-transform spectrometer with a resolution of 0.5 cm-1. The current measurements, which agree well with previous ones but are more precise, reveal pronounced structures on top of both unresolved Fermi doublet bands consisting of P-, Q-, and R-like branches. Assignment of Q-branches at 1284.75 cm-1 and 1387.75 cm-1 to (CO2)2 dimers seems highly probable. The nature of other peaks observed in CIA and Raman spectra of the CO2 Fermi doublet region is discussed. Copyright 1999 Academic Press.

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