o-Diphenylphosphinoanisole (PO), o-diphenylphosphinobenzyl methyl ether (PCO), and o-diphenylphosphino-N,N-dimethylbenzylamine (PCN) have been synthesized. New platinum metal complexes of these ligands and o-diphenylphosphino-N,N-dimethylaniline (PN) have been prepared. Chelate complexes [Pt(PN)2](ClO4)2, PtCl2(PCN), PdCl2(PCN), CoCl2(PCN), RhCl(CO)PCN, RuCl2(PO)2, RuBr2(PO)2, RuCl2(PCO)2, and RuCl2(PN)2 have been isolated. 1H nmr evidence is presented for chelation. The complex RuCl2(PO)2 will readily undergo carbonylation to give RuCl2(CO)(PO)2 and RuCl2(CO)2(PO)2. The complexes PtCl2(PO)2, PtCl2(PCO)2, PdCl2(PO)2, and PdCl2(PCO)2 have been prepared, coordination being solely through the phosphines. The position and multiplicity of the metal-chlorine stretching frequencies are used as a guide to stereochemistry. The temperature-dependent 1H nmr spectrum of RhCl(CO)PCN shows that the two nonequivalent TV-methyl groups are undergoing fast exchange at room temperature.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry