Acta Cryst. (2005). E61, o3297-o3298  [ doi:10.1107/S1600536805028977 ]

Diethyl 5,10-dihydro-9-methoxy-6-nitro-4,11-dioxo-cis-1H,3H,4H,11H-2-oxa-3a,4a,10a,11a-tetraazabenz[f]indeno[2,1,7-ija]azulene-11b,11c-dicarboxylate

B.-H. Zhou, J.-L. Qu and A.-X. Wu

Abstract: The crystal structure of the title compound, C₂₁H₂₃N₅O₁₀, an important intermediate for molecular tweezers, shows intermolecular hydrogen bonding.

Online 17 September 2005

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