HIGH RESOLUTION RAMAN SPECTROSCOPY OF GASES: XI. SPECTRA OF CS2 AND CO2
Author:
- B. P. StoicheffBSB. P. Stoicheff
- 1 February 1958
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 36 (2) , 218-230
Abstract
The vibrational Raman spectra of CS2, C12O2, and C13O2, consisting of the strong Fermi diad ν1, 2ν2 have been photographed with a 21 ft. grating. In the spectrum of CS2, 12 additional sharp Q branches were observed in the region of the diad; three are due to isotopic molecules and the remainder are "hot" bands. The rotational structure of the strong ν1 band was also obtained. These measurements together with infrared data are used to determine the vibrational constants ωi0 and xik of CS2. The pure rotational spectrum of CS2, with rotational lines up to J = 94, yields the constants B000 = 0.10910 ± 0.00005 cm−1, D000 = 1.0 × 10−8 cm−1, and r0(C=S) = 1.5545 ± 0.0003 Å. For C12O2, the rotational structure of the diad was analyzed and the results are in agreement with recent infrared data.Keywords
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