Reaction of Carbon Dioxide and Heterocumulenes with an Unsymmetrical Metal-Metal Bond. Direct Addition of Carbon Dioxide across a Zirconium-Iridium Bond and Stoichiometric Reduction of Carbon Dioxide to Formate
Reaction of Carbon Dioxide and Heterocumulenes with an Unsymmetrical Metal-Metal Bond. Direct Addition of Carbon Dioxide across a Zirconium-Iridium Bond and Stoichiometric Reduction of Carbon Dioxide to Formate
复制标题
二氧化碳和异积烯与不对称金属-金属键的反应。
DOI：
10.1021/ja00150a044
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发表时间：
1995
影响因子：
15
通讯作者：
R. Bergman
中科院分区：
文献类型：
--
作者：
T. A. Hanna;A. Baranger;R. Bergman
到目前为止，二氧化碳在大规模金属催化过程中的应用还很有限。正因为如此，人们对探索和理解二氧化碳及其类似物与过渡金属配合物的反应非常感兴趣。在我们看来，早-晚异双核（ELHB）配合物中的不对称金属-金属相互作用可能是诱导与潜在极化有机分子（如CO2）发生反应的理想选择。虽然已经合成了大量的ELHB配合物，但很少有表现出协同反应性，而且制备或结构表征的CO2或杂聚烯ELHB配合物要少得多。5
The use of carbon dioxide in large-scale metal-mediated catalytic processes has beenquite limited so far. 1· 2 Because of this, there is substantial interest in exploring and understanding the reactions of carbon dioxide and its analogues with transition metal complexes. 3 It seemed likely to us that the unsymmetrical metal—metal interactionin early—late heterobinuclear (ELHB) complexes might be ideal for inducingreactions with potentially polarizable organic molecules such as CO2. 4 Although a plethora of ELHB complexes have been synthesized, few show cooperative reactivity, and far fewerELHB complexes of CO2 or heterocumulenes have been made or structurally character-ized. 5