Abstract
The infrared spectra from 4000 to 30 cm -1 and the Raman sperm of chloro-, bromo- and iodotrimethylplatinum(IV) in the solid state have been recorded and qualitative assignments made. Very strong Raman lines at 581, 574 and 560 cm −1 are assigned to Pt C stretching vibrations in the three compounds respectively. Coincident infrared bands are observed but with very low intensity. A weak Raman line at 272 cm −1 in the spectrum of the chloro compound is assigned to v(Pt Cl) but Raman features attributable to Pt Br and Pt I stretching modes could not be detected in the other compounds. The far-infrared spectra of the compounds showed distinct trends due to the changing halo group.
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