Synthesis, structure, and reactivities of the Ru-Co heterobimetallic complex.: Molecular structures of CpRu(CO)2(μ2-CO)Co(CO)3, CpRu(μ2-CO)2(μ2-dppm)Co(CO)2, CpRu(CNBut)(CO)(μ2-CO)Co(CO)3, and Cp(CO)Ru{η2:η4-μ2-C(Tol)CHC(Tol)CH}Co(CO)2 (Cp* = η5-C5Me5, dppm = Ph2PCH2PPh2, Tol = C6H4Me-4)

被引：15

作者：

Matsuzaka, H ^{[1
]}

Ichikawa, K ^{[1
]}

Ishioka, T ^{[1
]}

Sato, H ^{[1
]}

Okubo, T ^{[1
]}

Ishii, T ^{[1
]}

Yamashita, M ^{[1
]}

Kondo, M ^{[1
]}

Kitagawa, S ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Sci, Dept Chem, Tokyo 1920397, Japan

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2000年 / 596卷 / 1-2期

关键词：

heterobimetallic complex; ruthenium; cobalt; alkyne; dinuclear metallacyclopentadiene; enyne;

D O I：

10.1016/S0022-328X(99)00608-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of Cp*Ru(CO)(2)Cl (Cp* = eta(5)-C5Me5) with NaCo(CO)(4) produces the metal-metal bonded heterobimetallic complex Cp*Ru(CO)(2)(mu(2)-CO)Co(CO)(3) (2b). Substitution of the CO ligands by the Ph2PCH2PPh2 (dppm) leads to the isolation of Cp*Ru(mu(2)-CO)(2)(mu(2)-dppm)Co(CO)(2) (3) whereas that by (BuNC)-N-t gives Cp*Ru(CO)(CNBut)(mu(2)-CO)Co(CO)(3) (4). Stoichiometric head-to-tail dimerization of p-tolylacetylene at the bimetallic site of 2b proceeds to form the dinuclear metallacyclopentadiene complex Cp*(CO)Ru{eta(2):eta(4)-mu(2)-C(Tol)CHC(Tol)CH}Co(CO)(2) (5) in which two alkyne molecules are coupled to form a ruthenacyclopentadiene core which coordinates to the Co(CO), fragment. On the other hand, catalytic head-to-head coupling of methyl propiolate in the presence of 2b yields (E)-(MeO2C)CH=CH(C=CCO2Me) (6). The molecular structures of 2b, 3, 4, and 5 have been determined by X-ray crystallography. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：121 / 129

页数：9

共 50 条

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