The π-electronic structures of some compounds containing boron–oxygen bonds. Part II. Cyclic compounds
The π-electronic structures of some cyclic boron–oxygen compounds are calculated by the Pople S.C.F. technique. Compounds treated in this way include boroxine, triphenylboroxine, tristyrylboroxine, and dimesitylboronic anhydride. A satisfactory account of the electronic spectra can be given by this method. The charge distribution throughout the molecules shows that the six electrons in the boroxine ring are more localised than in borazine.