Trinuclear Nickel Complexes with Metal-Arene Interactions Supported by Tris- and Bis(phosphinoaryl)benzene Frameworks.

Trinuclear Nickel Complexes with Metal-Arene Interactions Supported by Tris- and Bis(phosphinoaryl)benzene Frameworks.
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DOI:
10.1021/om400976x
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发表时间:
2013-12-09
期刊:
影响因子:
2.8
通讯作者:
Agapie T
Agapie T
中科院分区:
化学2区
文献类型:
--
作者:
Suseno S;Horak KT;Day MW;Agapie T

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具有促进金属-芳烃相互作用的主链的三膦配体和双膦配体被用来支撑多核镍配合物。含三芳基苯连接体的三膦配体负载的双核和三核金属配合物表现出不同的金属-芳烃结合模式。多核卤化镍络合物被分离出来,其中强相互作用的金属中心结合在配位芳烃的相反面上。二碘三镍络合物2与四甲基高铁酸二钠反应,得到一个界面的三角镍(0)络合物4。Ni03簇基序也可以由对三苯基二膦支持,其中末端的一氧化碳配体取代第三个膦给体。所有多核配合物都具有强烈的金属-芳烃相互作用,表明芳烃作为一种多功能的配体设计元素用于小簇合物。
Triphosphine and diphosphine ligands with backbones designed to facilitate metal-arene interactions were employed to support multinuclear Ni complexes. Di- and trinuclear metal complexes supported by a triphosphine containing a triarylbenzene linker display diverse metal-arene binding modes. Multinuclear Ni halide complexes were isolated with strongly interacting metal centers bound to opposite faces of the coordinated arene. Upon reaction of the trinickel diiodide complex, 2, with disodium tetracarbonylferrate, a cofacial triangulo nickel(0) complex, 4, was isolated. The Ni03 cluster motif can also be supported by a para-terphenyldiphosphine, where a terminal carbon monoxide ligand replaces the third phosphine donor. All multinuclear complexes feature strong metal-arene interactions, demonstrating the use of an arene as a versatile ligand design element for small clusters.
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发表时间: 1996-11-12
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