Homogeneous hydrogenation catalyzed by trinuclear RhI-OsIII-RhI complexes

被引：6

作者：

Comba, P ^{[1
]}

Mayboroda, A ^{[1
]}

Pritzkow, H ^{[1
]}

机构：

[1] Univ Heidelberg, Inst Anorgan Chem, D-69120 Heidelberg, Germany

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2003年 / 16期

关键词：

osmium; rhodium; heterometallic complexes; hydrogenation;

D O I：

10.1002/elic.200300177

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of [Os(Hbiim)(2)(O=PPh3)(2)](NO3) (H(2)biim = 2,2'-biimidazole) with [RhCl(cod)](2) (cod = 1,5-cyclooctadiene) or [Rh(OH)(cod)](2) yields biimidazolato-bridged trinuclear (RhOsIII)-Os-I-Rh-I complexes, which are highly efficient catalysts for the homogeneous hydrogenation of 1-hexene and cyclohexene. The reactivity of the trinuclear compounds compared with the mononuclear subunits indicates that this is due to cooperative effects. This is confirmed by spectroscopic and electrochemical data. The solid-state structure of [{RhCl(cod)}(2)(mu-Hbiim)(2){Os(O=PPh3)(2)}](NO3) was determined by single-crystal X-ray diffraction. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.

引用

页码：3042 / 3046

页数：5

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