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Boranediyl‐ and Diborane(4)‐1,2‐diyl‐Bridged Platinum A‐Frame Complexes
Author(s) -
Brunecker Carina,
Müssig Jonas H.,
Arrowsmith Merle,
Fantuzzi Felipe,
Stoy Andreas,
Böhnke Julian,
Hofmann Alexander,
Bertermann Rüdiger,
Engels Bernd,
Braunschweig Holger
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202001168
Subject(s) - diborane , borane , boron , chemistry , delocalized electron , crystallography , boranes , platinum , stereochemistry , catalysis , organic chemistry
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 0 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.