decarbonylations of Mo(CO)6 followed by phosphine additions yield the complexes Mo(CO)5(Ph2PCH2PPh2), which consists of a unidentate diphosphine, and the dinuclear phosphine-bridged complexes Mo2(CO)10(μ-Ph2P(CH2)nPPh2) (where n = 2, 3) at ambient temperatures. The IR and NMR (1H and 31P) spectroscopic and structural properties of these complexes are presented and discussed. Some thermal analytical data are
Substituted metal carbonyls XXIII . Syntheses of unicoordinated diphosphine complexes of Cr and Mo and their entry into heterobimetallics MM′(CO)10(μ-P-P) [M, M′ Cr, Mo, W; PP Ph2P(CH2)nPPh2, n = 2–4] as metalloligands
作者:Gan Kim-Suan、Kee Lee Hian、T.S. Andy Hor
DOI:10.1016/0022-328x(93)83146-m
日期:1993.11
pentacarbonyl complexes of chromium and molybdenum with unicoordinated-diphosphines, M(CO)5(η1-P-P) (P-P = dppe, dppp, dppb) has been prepared by amine oxide-induced phosphine substitution of the binary carbonyls. The basicity of the pendant phosphine groups was demonstrated by their ready conversion to the diphosphine-bridged heterobimetallic complexes (OC)5M(μ-P-P)M′(CO)5 (M, M′ Cr, Mo, W; M ≠ M′)