SYNTHESIS AND CHARACTERIZATION OF TRIHALONIOBIUM ALKYNE COMPLEXES

被引:69
作者
HARTUNG, JB [1 ]
PEDERSEN, SF [1 ]
机构
[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720
关键词
D O I
10.1021/om00119a010
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Neutral, monomeric trihaloniobium alkyne complexes of the general formula LnX3Nb(RC≡CRʹ) (X = Cl, Br L = dimethoxyethane (DME, n = 1); X = Cl, L = tetrahydrofuran (THF, n = 2)) are conveniently prepared from the reaction of NbX3(DME) with alkynes. An X-ray crystal structure of (THF)2Cl3Nb-(PhC≡CSi(t-Bu)Me2) was obtained and indicates that the alkyne unit is bound to niobium in a highly symmetric fashion with identical niobium–carbon distances (2.067 (2) Å). The synthesis of NbBr3(DME) is reported. © 1990, American Chemical Society. All rights reserved.
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页码:1414 / 1417
页数:4
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