Infra-red, Raman and p.m.r. spectra of trimethyltriammineplatinum(IV) chloride

The infra-red spectra of solid [Pt(CH 3) 3(NH 3) 3]Cl and [Pt(CH 3) 3(ND 3) 3]Cl between 4000 and 300 cm -1 the Raman spectra of the compounds in H 2O and D 2O have been obtained. Vibrational assignments have been made on the basis of C 3v symmetry for the complex ion. In the Raman spectrum of the light compound, lines at 584 and 390 cm -1 were assigned to PtC and PtN stretching vibrations respectively. In the N-deuterated compound the corresponding frequencies were 585 and 364 cm -1. The infra-red spectra of the solid compounds included bands at 581, 410 and 377 cm -1 (light) and 585, 381 and 352 cm -1 (N-deuterated) which were attributed to skeletal stretching vibrations. From the p.m.r. spectrum J 195PtCH3 was found to be 71 c/s. The Raman spectra and solution behaviour of Pt[(CH 3) 3(NH 3) 3] + and [Pt(NH 3) 6] 4+ were compared