Acta Cryst. (2005). E61, o2787-o2788  [ doi:10.1107/S1600536805024116 ]

Diethyl 4,8-dioxo-2,6-di-p-chlorophenyl-1,3,5,7-tetrahydro-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate

G.-D. Yin, B.-H. Zhou and A.-X. Wu

Abstract: In the title compound, C₂₈H₃₂Cl₂N₆O₆, the dihedral angle between the two adjacent five-membered rings in the glycoluril unit is 70.18 (9)° and molecules are connected mainly by C-HO intermolecular interactions.

Online 6 August 2005

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