151932-72-8Relevant academic research and scientific papers
Substituted metal carbonyls. XXIII. Syntheses of unicoordinated diphosphine complexes of Cr and Mo and their entry into heterobimetallics MM'(CO)10(μ-P-P) as metalloligands
Gan, Kim-Suan,Lee, Hian Kee,Hor, T.S. Andy
, p. 197 - 202 (2007/10/02)
A series of 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') in the presence of M'(CO)5(CH3CN).The complexes were characterized by IR and NMR (1H and 31P-) spectroscopy.
Substituted metal carbonyls IV. Studies of the synthesis and decomposition of singly-bridging 1,3-bis(diphenylphosphino)propanedimetal decacarbonyls of chromium, molybdenum and tungsten
Hor, Andy T. S.
, p. 51 - 58 (2007/10/02)
Singly-bridging diphosphine complexes M2(CO)10(μ-dppp) (M=Cr, W; dppp=Ph2P(CH2)3PPh2 have been isolated in a facile synthesis via an oxidative decarbonylation of M(CO)6 using trimethylamine-N-oxide as the initiator.The thermal decomposition of these complexes, together with the molybdenum analogue, have been studied in refluxing acetonitrile, benzene or toluene under N2 or CO.The characterisations and thermal stabilities of these species are described and discussed.Conversion of the 1,3-bis(diphenylphosphino)propanedimetal decacarbonyl complexes of chromium, molybdenum and tungsten into the chelate M(CO)4(η2-dppp) is promoted by free dppp but inhibited by CO gas.
