Acta Cryst. (2003). E59, o1927-o1929  [ doi:10.1107/S1600536803025224 ]

Glycoluril diamide dihydrate

J. C. Fettinger, C. A. Burnett and L. Isaacs

Abstract: The crystal structure of the title compound, cis-N,N'-bis(2-hydroxyethyl)-4,8-dioxo-2,6-dioxa-3a,4a,7a,8a-tetraazacyclopenta[def]fluorene-8b,8c-dicarboxamide dihydrate, C₁₄H₂₀N₆O₈·2H₂O, is reported. The compound forms tape-like structures comprising 14- and 10-membered hydrogen-bonded rings. These hydrogen-bonded tapes form hydrogen-bonded sheets and stacks of sheets by hydrogen-bonding interactions with the solvent water molecules.

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