LIGAND-EXCHANGE AND LIGAND MIGRATION REACTIONS INVOLVING DICYCLOPENTADIENYLNIOBIUM(III) CARBONYL DERIVATIVES

被引：30

作者：

OTTO, EEH

BRINTZINGER, HH

机构：

[1] Fachbereich Chemie, Universität Konstanz

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1979年 / 170卷 / 02期

关键词：

D O I：

10.1016/S0022-328X(00)81085-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The methylniobocene carbonyl (C5H5)2Nb(CH3)(CO) shows an unexpected lack of reactivity with respect to ligand migration. Whereas (C5H5)2V(CH3) has been reported to react with CO to yield the acetyl derivative (C5H5)2V(OC-CH3)(CO) immediately, we find that the niobocene analogue (C5H5)2Nb(CH3) reacts with CO only to regenerate (C5H5)2Nb(CH3)(CO), from which it was obtained by photolysis. This resistance of the methylniobocene carbonyl derivative towards ligand migration is interpreted in terms of the bonding properties of the acetyl intermediate (C5H5)2Nb(OCCH3). © 1979.

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页码：209 / 216

页数：8

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