Investigations of Tautomeric Purine Forms by the Methods of Vibrational Spectroscopy and Resonance Raman Scattering. I. Modeling of the Purine Structure in Different Phase States

Abstract

In the present work, the methods of vibrational spectroscopy are used to study the occurrence of two tautomeric purine forms in different phase states. It is demonstrated that the N9H tautomeric purine form is dominant in the isolation matrix, the N7H tautomer is dominant in the polycrystalline state, and both tautomeric forms coexist in the liquid phase (H2O solution).