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Keywords:

  • 1,2-diphosphetanes;
  • carbaboranes;
  • density functional calculations;
  • phosphorus heterocycles;
  • ring opening
Thumbnail image of graphical abstract

The ring and I: Air- and water-stable 1,2-diphosphetanes (see structure) were prepared in high yield utilizing the unique electronic and structural properties of 1,2-dicarba-closo-dodecaborane(12)s. Ring-opening reactions with elemental iodine gave the first 1,2-bis(iodophosphanyl)-1,2-dicarba-closo-dodecaborane(12)s.