Acta Cryst. (2007). E63, o2797  [ doi:10.1107/S1600536807021022 ]

5,5-Dimethyl-2-phenyl-4,5-dihydro-1,2,4-triazolo[1,5-a][1,3,5]triazin-7-amine

A. V. Dolzhenko, G. K. Tan, L. L. Koh, A. V. Dolzhenko and W. K. Chui

Abstract: The title compound, C₁₂H₁₄N₆, was synthesized via cyclocondensation of 5-amino-1-guanyl-3-phenyl-1,2,4-triazole with acetone. Only one tautomeric form with an H atom at the triazine N atom was observed in the crystal structure. The compound crystallizes with two almost identical molecules in the asymmetric unit. In both molecules, the triazine ring adopts a conformation intermediate between a twist-boat and a half-boat. The crystal packing is stabilized by intermolecular N-HN hydrogen bonds.

Online 3 May 2007

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