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Boranediyl- and Diborane(4)-1,2-diyl-Bridged Platinum A-Frame Complexes.

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 Pt0 2 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.

SUBMITTER: Brunecker C

PROVIDER: S-EPMC7384048 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Boranediyl- and Diborane(4)-1,2-diyl-Bridged Platinum A-Frame Complexes.

Brunecker Carina C Müssig Jonas H JH Arrowsmith Merle M Fantuzzi Felipe F Stoy Andreas A Böhnke Julian J Hofmann Alexander A Bertermann Rüdiger R Engels Bernd B Braunschweig Holger H

Chemistry (Weinheim an der Bergstrasse, Germany) 20200617 39

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 Pt<sup>0</sup> <sub>2</sub> 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 dime ...[more]

PMID: 32196775

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