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Ligand architecture for triangular metal complexes: a high oxidation state Ni3 cluster with proximal metal arrangement.
Chemical Communications ( IF 4.3 ) Pub Date : 2020-07-21 , DOI: 10.1039/d0cc03816d
Manar M Shoshani 1 , Theodor Agapie 1
Affiliation  

A new multidentate tetraanionic ligand platform for supporting trinuclear transition metal clusters has been developed. Two trisphenoxide phosphinimide ligands bind three Ni centers in a triangular arrangement. The phosphinimide donors bridge in μ3 fashion and the phenoxides complete a pseudo-square planar coordination sphere around each metal center. Electrochemical studies reveal two pseudo-reversible oxidation events at notably low potentials (−0.80 V and +0.05 V). The one electron oxidized species was characterized structurally, and it is assigned as a NiIII-containing cluster.

中文翻译:

三角形金属配合物的配体结构:具有近端金属排列的高氧化态Ni3团簇。

开发了一种新的支持多核过渡金属簇的多齿四阴离子配体平台。两个三酚盐次膦酰亚胺配体以三角形排列结合三个Ni中心。所述phosphinimide供体桥μ 3时尚与酚完成围绕每个金属中心的伪正方形的平面配位球。电化学研究表明,在极低的电势(-0.80 V和+0.05 V)下发生了两个伪可逆氧化事件。一种电子被氧化的物种在结构上得到了表征,并被分配为含Ni III的团簇。
更新日期:2020-09-24
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