Synthesis, structure and characterisation of rac and meso-ansa-bridged permethylindenyl cobalt complexes

被引：20

作者：

Ransom, Paul ^{[1
]}

Ashley, Andrew ^{[1
]}

Thompson, Amber ^{[1
]}

O'Hare, Dermot ^{[1
]}

机构：

[1] Univ Oxford, Chem Res Lab, Dept Chem, Oxford OX1 3TA, England

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2009年 / 694卷 / 7-8期

基金：

英国工程与自然科学研究理事会;

关键词：

ansa-Metallocenes; Cobaltocenes; Metallocenes; Indenyl; POLYMERIZATION; LIGANDS; METALS; SALTS; FE; CO;

D O I：

10.1016/j.jorganchem.2008.09.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Disodium ethylene-bis-hexamethylindenyl, {(C9Me6)(2)C2H4}Na-2 (EBI*Na-2), has been prepared in good yield by the reaction of lithium heptamethylindenyl with cyanogen bromide followed by treatment with sodium naphthalenide. EBI*Na-2 reacts with anhydrous Co(acac)(2) to give a mixture of rac and meso-ethylene-bis-hexamethylindenyl cobalt(II) (EBI*Co). The isomers can be separated by fractional crystallisation and the rac-isomer has been structurally characterised. Oxidation of the reaction mixture yields both rac and meso-ethylene-bis-hexamethylindenyl cobalt(III) which have both been structurally characterised. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1059 / 1068

页数：10

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