Isolation and characterization of a monomeric, solvent coordinated ruthenium(II)carbene cation relevant to olefin metathesis

被引:27
作者
Hofmann, P [1 ]
Volland, MAO [1 ]
Hansen, SM [1 ]
Eisenträger, F [1 ]
Gross, JH [1 ]
Stengel, K [1 ]
机构
[1] Ruprecht Karl Univ Heidelberg, Inst Organ Chem, D-69120 Heidelberg, Germany
关键词
ruthenium; carbene complexes; metathesis; homogenous catalysis; density functional theory calculations;
D O I
10.1016/S0022-328X(00)00288-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The isolation as well as spectroscopic and structural characterization of [(kappa(2)-'Bu2PCPH2P'Bu-2)ClRu-CH-CH=C(CH3)(2)-(CH3CN)](+) ([5(+)]), a solvent-coordinated monomeric ruthenium(II)carbene cation with a rigid cis-stereochemistry of two phosphines, are reported. Its relevance for the mechanism of olefin metathesis catalyzed by such complexes is discussed and distinct differences compared to complexes with the usual trans-phosphine stereochemistry are noted. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:88 / 92
页数:5
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