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).: Formation of heterobimetallic complexes by nucleophilic substitution on a cyclopentadienyl ligand or on the metal M

被引：13

作者：

Comte, V ^{[1
]}

Blacque, O ^{[1
]}

Kubicki, MM ^{[1
]}

Moise, C ^{[1
]}

机构：

[1] Univ Bourgogne, Fac Sci Gabriel, Lab Synth & Electrosynth Organomet, UMR 5632, F-21000 Dijon, France

来源：

ORGANOMETALLICS | 1997年 / 16卷 / 26期

关键词：

D O I：

10.1021/om970630i

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two kinds of ansa derivatives, [SiMe2(eta(5)-C5H4)(2)]MCl2 and [CMe2(eta(5)-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(eta(5)-C5H4)(eta(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 Ic-phosphido bimetallic complexes [CMe2(eta(5)-C5H4)(2)]M(Cl)(mu-PPh2)M'(CO)(x). The solid-state structure of the bimetallic complex [CMe2(eta(5)-C5H4)(2)]W(Cl)(mu-PPh2)Fe(CO)(4) (7d) is reported.

引用

页码：5763 / 5769

页数：7

共 31 条

[1] ansa-Niobocene complexes: Synthesis and characterization of novel complexes [Me(2)Si(eta(5)-C5H4)(2)]NbCl2 and [Me(2)Si(eta(5)-C5H4)(2)]NbCl(RC CR) (R=Me, Ph). X-ray crystal structure of [Me(2)Si(eta(5)-C5H4)(2)]NbCl(MeC CME) [J].