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

Boranediyl- and Diborane(4)-1,2-diyl-bridged Platinum A-Frame Complexes.
Chemistry. 2020 Mar 20;:
Authors: Brunecker C, Müssig JH, Arrowsmith M, Fantuzzi F, Stoy A, Böhnke J, Hofmann A, Bertermann R, Engels B, Braunschweig H
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.
PMID: 32196775 [PubMed - as supplied by publisher]

Source: Chemistry - March 19, 2020 Category: Chemistry Authors: Brunecker C, Müssig JH, Arrowsmith M, Fantuzzi F, Stoy A, Böhnke J, Hofmann A, Bertermann R, Engels B, Braunschweig H Tags: Chemistry Source Type: research