Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

Acta Cryst. (2012). E68, o193    [ doi:10.1107/S1600536811053268 ]


R. Bikas, P. M. Anarjan, S. W. Ng and E. R. T. Tiekink

Abstract: The mol­ecule of the title compound, C15H14N4O3, is completed by the application of crystallographic twofold symmetry, with the carbonyl group lying on the rotation axis. The mol­ecule is close to planar: the greatest deviation of a torsion angle from 0° is 7.3 (2)° about the bond linking the phenol ring to the rest of the mol­ecule. An intra­molecular O-H...N(imine) hydrogen bond is formed in each half of the mol­ecule. The carbonyl O atom is anti with respect to the amine H atoms and this allows for the formation of N-H...O(hydrox­yl) hydrogen bonds in the crystal, which results in supra­molecular layers lying parallel to (100).

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