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Keywords:

  • arenes;
  • boron;
  • cyclophanes;
  • structure elucidation;
  • X-ray diffraction
Thumbnail image of graphical abstract

Character sketch: Boracyclophanes, in which the benzene ring coordinates to the boron atom, were synthesized. X-ray crystallographic analysis and theoretical calculations revealed the intrinsic character of the boron–benzene interaction. Its σ/π character can be modulated by changing the electron-donating character of the benzene ring.