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Keywords:

  • alkene ligands;
  • carbyne ligands;
  • dehydrogenation;
  • Lewis acids;
  • multiple bonds
Thumbnail image of graphical abstract

Carbyne formation: Treatment of a molybdenum ethylene complex with B(C6F5)3 induces ditopic activation of an ethylene ligand and acceptor-assisted ethane elimination to generate a novel type of zwitterionic carbyne complex (see scheme).