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Boranediyl- and Diborane(4)-1,2-diyl-Bridged Platinum A-Frame Complexes |
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| Authors: | Carina Brunecker Dr Jonas H Müssig Dr Merle Arrowsmith Dr Felipe Fantuzzi Andreas Stoy Dr Julian Böhnke Dr Alexander Hofmann Dr Rüdiger Bertermann Prof Dr Bernd Engels Prof Dr Holger Braunschweig |
| Institution: | 1. Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Wüzburg, Am Hubland, 97074 Würzburg, Germany;2. Institut für Anorganische Chemie and, Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Wüzburg, Am Hubland, 97074 Würzburg, Germany
Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074 Würzburg, Germany;3. Institut für Physikalische und Theoretische Chemie, Julius-Maximilians-Universität Würzburg, Emil-Fischer-Straße 42, 97074 Würzburg, Germany |
| Abstract: | Diplatinum A-frame complexes with a bridging (di)boron unit in the apex position were synthesized in a single step by the double oxidative addition of dihalo(di)borane precursors at a bis(diphosphine)-bridged Pt02 complex. While structurally analogous to well-known μ-borylene complexes, in which delocalized dative three-center-two-electron M-B-M bonding prevails, theoretical investigations into the nature of Pt−B bonding in these A-frame complexes show them to be rare dimetalla(di)boranes displaying two electron-sharing Pt−B σ-bonds. This is experimentally reflected in the low kinetic stability of these compounds, which are prone to loss of the (di)boron bridgehead unit. |
| Keywords: | boron bonding EDA-NOCV oxidative addition platinum |