✍ Scribed by M. Friesen; M. Junker; H. Schnöckel
No coin nor oath required. For personal study only.
A suitable method to synthesize molecules like SסGeסS, which cannot be obtained by heating of the well known solids, is provided by the matrix-isolation technique. In solid noble or other inert gases, GeS molecules react with S-atoms, which are produced photochemically from cocondensed COS. The formation of the CO 2 -like GeS 2 species was monitored by IR-spectroscopy some time ago. In order to get the complete force field, the Raman spectrum has now been obtained. On the basis of these experimental findings, bonding including ab initio calculations with the result that multiple bonding in the system GeS/GeS 2 is found to be different from that in the couple CS/CS 2 .
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Raman spectra of HzS isolated in Nz at MIA ratios of 30, 50, 100, and 300 and in Ar at MIA ratios of 50,100,300, and 1000 have been measured in the S-H stretching region. The spectral results confirm the infrared measurements on HzS isolated in Nz; however, the symmetric stretching vibration, v1, of
Infrared and Raman spectra of gaseous and liquid SO, have been investigated for several decades [l-91. However, because SO, is highly reactive, forms trimers in the liquid, and is distorted in condensed phases, there have been some doubts about the vibrational assignments of monomeric SO,. Vapor pr