The Infrared Absorption Spectra of H2S, HDS and D2S

Abstract
The infrared spectra of H2S, HDS and D2S have been examined up to 15 μ with a monochromating prism spectrometer, and the results compared with the Raman spectra. The fundamental frequencies have been assigned with reasonable certainty, and a calculation has been made of the frequencies corresponding to infinitesimal amplitude. The cruder methods of the vibrational‐rotational spectrum suggest a vertical angle of 110°, as compared with 92° obtained previously from a rotational analysis.

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