Thymine hydrogen peroxide 0.55-solvate 0.45-hydrate

Abstract

Thymine crystallizes from 50% hydrogen peroxide to give the title hydrogen peroxide water solvate, C5H6N2O2·0.55H2O2·0.45H2O. The disordered peroxide and water molecules occupy the same positions. Thymine molecules are linked together by N—H...O hydrogen bonds forming chains parallel to the ac diagonal. Hydrogen peroxide molecules are combined by O—H...O hydrogen bonds to give chains parallel to the c axis. Both kinds of chains are organized in a three-dimensional hydrogen-bonded network.