Transition-metal complexes containing phosphorus ligands. Part IX. Triaryl phosphite derivatives of palladium(II) and platinum(II) dihalides
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 11,p. 1148-1150
- https://doi.org/10.1039/dt9730001148
Abstract
An extensive series of triaryl phosphite derivatives of palladium(II) and platinum(II) dihalides, MX2[P(OAr)3]2(M = Pd or Pt; X = Cl, Br, or I; Ar = phenyl, p-chlorophenyl, o-, m-, or p-tolyl), have been isolated as air-stable crystalline solids by reacting triaryl phosphites, P(OAr)3 and, where appropriate, lithium halides, LiX, with the salts Na2MCl4 in ethanol or the neutral complexes MX2(cyclo-octa-1,5-diene) in benzene solution. The new complexes have been characterised and their stereochemistry investigated by i.r. and n.m.r. spectroscopy. Palladium derivatives containing bulky tri-o-tolyl phosphite or iodide ligands were obtained as trans-isomers or cis–trans mixtures, the remaining complexes occurred predominantly as the cis-isomers. An extensive compilation of 31P n.m.r. data is given.Keywords
This publication has 0 references indexed in Scilit: