199524-56-6Relevant academic research and scientific papers
Reactivity of the ansa-bridged metallocene dichlorides [X(η5-C5H4)2]MCl2 (X = SiMe2, CMe2; M = Mo, W) toward metallophosphide anions [PPh2M′(CO)x]- (M′ = Cr, Mo, W, x = 5; M′ = Fe, x = 4)
Comte, Virginie,Blacque, Olivier,Kubicki, Marek M.,Mo?se, Claude
, p. 5763 - 5769 (1997)
Two kinds of ansa derivatives, [SiMe2(η5-C5H4) 2]MCl2 and [CMe2(η5-C5H4) 2]MCl2 (M = Mo, W), are reacted with metallophosphide anions [PPh2M′(CO)x]- (M′ = Cr, Mo, W, x = 5; M′ = Fe, x = 4). The silicon-bridged derivatives give the bimetallic systems [SiMe2(η5-C5H4)(η 5-C5H3PPh2M′CO) x]M(H)(Cl), which result from a regioselective substitution at the 3-position on the cyclopentadienyl ligand. In contrast, with the CMe2-bridged compounds, the substitution reaction occurs at the metallic center, giving μ-phosphido bimetallic complexes [CMe2(η5-C5H4) 2]M(Cl)(μ-PPh2)M′(CO)x. The solid-state structure of the bimetallic complex [CMe2(η5-C5H4) 2]W(Cl)(μ-PPh2)Fe(CO)4 (7d) is reported.
