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. 2012 Dec 1;68(Pt 12):o3353.
doi: 10.1107/S1600536812046260. Epub 2012 Nov 17.

Pyridine-2,5-diamine

Sergiu Draguta  1 , Victor N Khrustalev, Marina S Fonari, Mikhail Yu Antipin, Tatiana V Timofeeva
Affiliations

Pyridine-2,5-diamine

Sergiu Draguta et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title mol-ecule, C5H7N3, intra-cyclic angles cover the range 117.15 (10)-124.03 (11)°. The N atoms of the amino groups have trigonal-pyramidal configurations deviating slightly from the pyridine plane by 0.106 (2) and -0.042 (2) Å. In the crystal, the pyridine N atom serves as an acceptor of an N-H⋯N hydrogen bond which links two mol-ecules into a centrosymmetric dimer. Inter-molecular N-H⋯N hydrogen bonds between the amino groups further consolidate the crystal packing, forming a three-dimensional network.

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Figures

Fig. 1.
Fig. 1.
Molecular structure of I. Displacement ellipsoids are shown at the 50% probability level. H atoms are presented as small spheres of arbitrary radius.
Fig. 2.
Fig. 2.
A portion of the crystal packing showing intermolecular N—H···N hydrogen bonds as dashed lines.
See this image and copyright information in PMC

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