%0 Journal Article
%A Camy, Aurèle
%A Vendier, Laure
%A Bijani, Christian
%A Fernández López, Israel
%A Bontemps, Sèbastien
%T Synthesis and Coordination of a Bisphosphine-[NHC-borane] Compound: A Ligand Framework for Bimetallic Structure Featuring a Boron-Bridging Moiety
%D 2023
%@ 0020-1669
%U https://hdl.handle.net/20.500.14352/93582
%X We report herein the synthesis of a bisphosphine- [NHC-BH3] compound and its coordination toward gold. The ligand is shown to support a bimetallic structure bisphosphine- [NHC-BH3](AuCl)2. The abstraction of one chloride from the gold metal center triggers the activation of a BH3 fragment, leading to the reductive elimination of H2 and the formation of a dicationic Au4 2+ complex featuring Au centers at the +0.5 oxidation state, via a (μ-H)Au2 intermediate, characterized in situ at 183 K. The reactivity of Au4 with thiophenol led to the reoxidation of the gold metal centers to a (μ-S(Ph))Au2 complex. In the different complexes, borane fragment was shown to bridge the Au2 core via weak interaction with [BH], [BCl], and [BH2] moieties
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