15616-82-7Relevant articles and documents
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.
THE PHOTODECOMPOSITION OF PLATINACYCLOALKANES IN SOLUTION II. 1,4-BUTANEDIYLPLATINUM(II) AND (IV) COMPOUNDS
Perkins, Duncan C.L.,Puddephatt, Richard J.,Tipper, Charles F.H.
, p. 481 - 488 (2007/10/02)
The products of the photolysis of a number of platinacyclopentanes is solution at 25 deg C under a variety of conditions have been determined.With (L = PMe2Ph, PPh3) in CH2Cl2, CH2Br2 and (CH3)2SO the hydrocarbon products are exclusively ethylene and but-1-ene.Formation of the latter through a 1,3-hydrogen shift is preceded by phosphine ligand dissociation.The photolysis of gave methane, ethylene, but-1-ene and n-pentane together with a little n-butane, the methane being formed from internal hydrogen abstraction by the CH3 group in the excited reactant molecule.Photodecomposition of the platinum(II) compounds (L = (PMe2Ph)2, (PPh3)2, Ph2PCH2CH2PPh2) gave ethylene, but-1-ene, pent-1-ene (with the halogenated solvents) and with some systems appreciable yields of n-butane, the latter being the result of internal abstraction of two hydrogen atoms by the C4H8 moiety.The formation of pentene is probably preceeded by the addition of CH2Cl2 or CH2Br2 to the excited reactant molecule.Addition of diphenylphosphine promotes the production of n-butane.
