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Keywords:

  • ammonia;
  • hydrogen bonds;
  • Lewis acids;
  • π interactions;
  • water chemistry
Thumbnail image of graphical abstract

O/N[BOND]H⋅⋅⋅π hydrogen bonds: Water–benzene and ammonia–benzene complexes are stabilized by the Lewis acid B(C6F5)3 and provide rare structural (X-ray) and infrared spectroscopic data for water–benzene and ammonia–benzene complexes in the solid state (see picture). The infrared spectra of the complexes showed that the O[BOND]H and N[BOND]H stretching frequencies decrease significantly on benzene complexation.