(IUCr) Crystallography Journals Online

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Acta Cryst. (2009). E65, o125 [ doi:10.1107/S1600536808042177 ]

3-Pyridin-2-yl-1H-1,2,4-triazol-5-amine

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

Abstract: In the title compound, C₇H₇N₅, the non-H atoms are almost coplanar (r.m.s. deviation = 0.050 Å), with the N atom of pyridine ring oriented to the N-N(H) side of the 1,2,4-triazole ring. The mean planes of the pyridine and 1,2,4-triazole rings form a dihedral angle of 5.58 (7)°. The N atom of the amino group adopts a pyramidal configuration. The molecules are linked into a two-dimensional network parallel to (10 $\\overline{1}$ ) by N-HN hydrogen bonds.

Online 17 December 2008