27285-41-2Relevant academic research and scientific papers
Solid-state distortions of nominally square-planar palladium and platinum (R3P)2MX2 complexes as determined by a combination of 13C{1H} and 31P{1H} NMR spectroscopy
Rahn, Jeffrey A.,O'Donnell, Daniel J.,Palmer, Allen R.,Nelson, John H.
, p. 2631 - 2635 (2008/10/08)
Phosphorus-31 and carbon-13 NMR spectra have been obtained for a series of 20 (R3P)2MX2 complexes (R3P = MePh2P and Me2PhP; M = Pd, Pt; X = Cl, Br, I, CN, N3) in the solid state by cross-polarization and magic-angle-spinning (CP/MAS) techniques. Comparison of these data with spectral data obtained at 300 K in CDCl3 solutions was made in order to investigate the influence of local symmetry on 31P and 13C chemical shifts in the solid state. It was found that most of these compounds, which have regular square-planar geometries in solution, are distorted in the solid state. The solid-state distortions are evidenced by additional 31P and 13C resonances in the CP/MAS spectra as compared to the solution spectra. The nature and degree of these distortions are discussed.
