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Keywords:

  • allotropy;
  • arsenic;
  • carbenes;
  • density functional calculations;
  • hypervalent compounds
Thumbnail image of graphical abstract

Diarsenic as a Lewis acid: An N-heterocyclic carbene stabilized diarsenic molecule [L:As[BOND]As:L] (L:=:C{N(2,6-iPr2C6H3)CH}2) (see scheme) has been prepared by potassium/graphite reduction of [L:AsCl3]. The nature of the bonding in this molecule was probed by DFT computations.