Solvent influence on some complexes realized by hydrogen bond

Some complexes realized by hydrogen bond between cycloimmonium ylids and hydroxyl solvents are studied by means of electronic and 1H NMR spectra. Ternary solutions were made in order to establish the composition of the first solvation sphere of these complexes. Information on the first solvation sphere composition were obtained from the wavelengths in the maximum of the intramolecular charge transfer band of the cycloimmonium ylids registered in a binary solvent.