Acta Crystallographica Section E (Jul 2010)

8-Methyl-2-[4-(trifluoromethyl)phenyl]-8H-pyrazolo[4,3-e][1,2,4]triazolo[1,5-c]pyrimidin-5-amine methanol disolvate

  • Anton V. Dolzhenko,
  • Geok Kheng Tan,
  • Anna V. Dolzhenko,
  • Lip Lin Koh,
  • Giorgia Pastorin

DOI
https://doi.org/10.1107/S1600536810024591
Journal volume & issue
Vol. 66, no. 7
pp. o1835 – o1836

Abstract

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In the title compound, C14H10F3N7·2CH4O, the heterocyclic ring system is essentially planar (r.m.s. deviation = 0.009 Å) and makes a dihedral angle of 6.91 (8)° with the attached benzene ring. In the crystal, the main molecules form centrosymmetric R22(8) dimers via pairs of N—H...N hydrogen bonds between the amino groups and pyrimidine N atoms. One of the independent methanol molecules and its inversion equivalent are linked to the dimers via O—H...N and N—H...O hydrogen bonds, forming R44(16) graph-set motifs. The dimers along with the hydrogen-bonded methanol molecules are stacked along the a axis, with π–π interactions between the pyrazole and triazole rings [centroid–centroid distance = 3.4953 (10) Å].