Transition-metal complexes containing phosphorus ligands. Part XIII. Dialkyl phenylphosphonite and alkyl diphenylphosphinite derivatives of silver, gold, and the platinum metals

Abstract

Reactions between metal halides, metal carbonyl halides, or metal olefin halides and dialkyl phenylphosphonite, P(OR)₂Ph, or alkyl diphenylphosphinite, P(OR)Ph₂, ligands (R = Me, Et) performed in polar or aromatic solvents afford a general route to an extensive series of uncharged complexes. Compounds isolated in this way include RuCl₂(CO)₂L₂, RuCl₂(CO)L₃, OsCl₂(CO)₂L₂, IrHCl₂L₃, cis-PdCl₂L₂, cis-PtCl₂L₂, cis-PtBr₂L₂[L = P(OR)Ph₂, P(OR)₂Ph; R = Me, Et], AgCl[P(OEt)Ph₂]₂, AgClL′[L′= P(OR)₂Ph, P(OMe)Ph₂], and AuCl[P(OEt)Ph₂]. ¹H and ³¹P N.m.r. spectra are presented and discussed.