Abstract:The IR absorption spectra (4 000-250 cm-1) of anhydrous K[(propene)PtCl3], using propene-2-d1 and propene-1,1-d2 as the ligands, were measured in KBr discs. A new weak band for the fundamental deformation frequency of the C-C=C skeleton softened by the coordination of the propenes was found around 400 cm-1, namely at 420, 417, and 375 cm-1 for d0, d1, and d2 species, resp. Vibrational couplings of the so-called ν(C=C) with other modes of the ligands is discussed.
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