Acta Cryst. (2010). E66, o1245  [ doi:10.1107/S1600536810015643 ]

4-Nitrobenzoic acid-2,2'-biimidazole (2/1)

X. Liu and W. Zhu

Abstract: In the title adduct, C₇H₅NO₄·0.5C₆H₆N₄, the complete biimidazole molecule is generated by a crystallographic inversion centre. In the crystal, N-HO and O-HN hydrogen bonds connects the 4-nitrobenzoic acid and 2,2'-biimidazole units, affording multi-dimensional frameworks with graph-set descriptor R₂²(9).

Online 8 May 2010

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