INELASTIC NEUTRON SCATTERING STUDIES OF ETHYLENE-CONTAINING SQUARE PLANAR PLATINUM COMPLEXES

Article abstract of DOI:10.1016/0584-8539(82)80113-X

The low frequency (0-850 cm^-1) modes of vibration of the complexes trans-PtCl2(C2H4)*L (where L=ND3, CD3CN, DCON(CD3)2 and C6D5ND2) and cis-PtCl2(C2H4)*(CD3)2SO have been studied by inelastic neutron scattering, i.r. and Raman spectroscopy.In all complexes, motions of the C2H4 moiety relative to the platinum atom (including torsional modes) have been assigned and the barrier to rotation of the C2H4 ligand about an axis projected from the platinum atom through the centre of the C=C bond determined.The barriers thus calculated have been compared with energies of activation obtained from nuclear magnetic resonance studies of similar complexes.