Acta Cryst. (2007). E63, o236-o238  [ doi:10.1107/S1600536806052512 ]

Indole-picric acid (1/1)

K. Saminathan and K. Sivakumar

Abstract: In the title molecular complex, C₈H₇N·C₆H₃N₃O₇, the picric acid molecule is disordered, corresponding to a rotation about one H-CC-N axis and resulting in two sites for the hydroxyl group. In the crystal structure, the indole and picric acid molecules are stacked in columns parallel to the b axis with significant - interactions. In addition, intermolecular hydrogen bonds link molecules in a zigzag fashion along the a axis, giving ring patterns with graph-set motifs R₂²(8) and R₂²(7).

Online 13 December 2006

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