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Keywords:

  • alkynyl complexes;
  • allenylidene complexes;
  • carbenes;
  • cumulenes;
  • phosphorescent iridium complexes
Thumbnail image of graphical abstract

A warm (blue) glow: A stable bis-cyclometalated iridium(III) allenylidene complex is prepared from a bis-cyclometalated iridium(III) complex (see scheme). This strategy gives the first allenylidene complex that is phosphorescent at room temperature.