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Hetero-Bimetallic Effect as a Route to Access Multinuclear Complexes.

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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… Click to show full abstract

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.

Keywords: bimetallic effect; chemistry; hetero bimetallic; ligand; route

Journal Title: Inorganic chemistry
Year Published: 2018

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