Acta Cryst. (2008). E64, o1877  [ doi:10.1107/S1600536808027785 ]

10,11,12,13-Tetrahydro-4,5,9,14-tetraazadibenz[a,c]anthracene-benzene-1,4-dicarboxylic acid (2/1)

C.-B. Liu, J. Wang, X.-Y. Li, G.-B. Che and Y. Liu

Abstract: In the title adduct, 2C₁₈H₁₄N₄·C₈H₆O₄, the centrosymmetric 1,4-benzenedicarboxylic acid molecule makes two O-H·N hydrogen bonds to adjacent 10,11,12,13-tetrahydro-4,5,9,14-tetraazadibenzo[a,c]anthracene (TTBT) molecules. Aromatic - stacking interactions occur between TTBT rings [centroid-centroid distance = 3.570 (3) Å], leading to a two-dimensional supramolecular structure in the crystal.

Online 6 September 2008

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