The nature of electronic spectra of self-combined riboflavin molecules

Abstract

The self-assembly of riboflavin molecules in aqueous and binary mixtures of solvents was studied by a spectroscopic method. It is shown that the self-assembly of vitamin B2 molecules occurs as a dipole-dipole and strong inductive-inductive interaction, as a result of which a resonant splitting occurs by excitation of electronic levels of riboflavin molecules. For self-aggregated molecules in the spectra of linear dichroism, hidden adsorption bands are identified, on the basis of which schemes of electronic transitions to absorption are constructed.