IN view of the interesting observations of Rasetti with carbon dioxide (NATURE, Feb. 9. 1929), the Raman spectrum of which was found to contain no lines corresponding to any of the observed infra-red absorption bands, the results obtained in the analogous compound carbon disulphide may be noteworthy. The scattered spectrum of this liquid gives two prominent frequency shifts, 655 and 800, corresponding to 15.27 μ and 12.50 μ respectively. The infra-red absorption of the liquid was studied by Coblentz in the region 2 μ to 15 μ, and he gives the following values for the absorption bands—3.2 μ, 4.6 μ, 6.8 μ, 11.65 μ, and 13.4 μ. All these bands, except the first, are very strong, the one at 6.8 μ being the most prominent. It is significant that none of these bands are represented in the scattered spectrum.
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GAVESAN, A., VENKATESWARAN, S. The Raman Effect in Carbon Disulphide. Nature 124, 57 (1929). https://doi.org/10.1038/124057c0
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