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Hetero-Bimetallic Effect as a Route to Access Multinuclear Complexes
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2018-10-04 00:00:00 , DOI: 10.1021/acs.inorgchem.8b01466
Zhongrui Chen 1 , Gabriel Canard 1 , Denis Jacquemin 2 , Christophe Bucher 3 , Michel Giorgi 4 , Olivier Siri 1
Affiliation  

We report the synthesis of a key mononuclear intermediate complex based on a quinoid ligand and its further metalation to afford the corresponding hetero-bimetallic compound that revealed unique properties. An unprecedented hetero-bimetallic effect in coordination chemistry could be indeed observed and exploited to prepare, through selective ligand exchange, a tetranuclear complex (Pd–Ni–Ni–Pd) absorbing light up to the far-red region. Most importantly, we describe here to the best of our knowledge the first use of bischelating ligand for ligand exchange, and this approach can be considered as a new route for incorporating planar units to access multi-heteronuclear complexes. The origin of this specific ligand exchange as well as of the nature of the electronic excited states of the relevant structures were investigated by first-principle calculations.

中文翻译:

异双金属效应作为获取多核配合物的途径

我们报告了基于醌型配体的关键单核中间配合物的合成及其进一步的金属化作用,从而提供了具有独特性能的相应杂双金属化合物。实际上,可以观察到配位化学中前所未有的异双金属作用,并可以通过选择性配体交换来制备一种四核络合物(Pd-Ni-Ni-Pd),吸收多达远红色区域的光。最重要的是,据我们所知,本文首先描述了使用双螯合配体进行配体交换的方法,这种方法可被视为整合平面单元以访问多异核复合物的新途径。
更新日期:2018-10-04
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