SEARCH

SEARCH BY CITATION

Keywords:

  • boron;
  • donor–acceptor systems;
  • Group 13 elements;
  • multiple bonds

Graphical Abstract

Thumbnail image of graphical abstract

The lightest double bond, that is, the one between two atoms of boron, was finally realized in an electroneutral compound. Robinson et al. satisfied the electron demand of HB[DOUBLE BOND]BH through coordination of two molecules of an N-heterocyclic carbene (see scheme). As by-product, the base-stabilized parent diborane(4), the formal hydrogenation product of the title compound, was isolated.