“…Thus, bands at 403 w (py2CH2), 403 m (py2CEt2), 400 m (pyIm), and 403 w cm-' (py-NMeIm) occur at 453 m or 437 w(b), 456 w and/or 446 w, 430 w, and 431 w cm-', respectively, in the complexes. Platinum-chlorine stretching modes are readily identified in the range 343-328 cm-' for the complexes by comparison with spectra of the ligands and cis-PtL2C12 (L = pyridine [15], imidazole [3], N-methylimidazole [6], and L2 = 2,2'-bipyridyl [16]) which have these modes in the range 345-320 cm-' (Table II).…”