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Acta Cryst. (2012). E68, o2693
[ doi:10.1107/S1600536812034678 ]


C. J. Ziegler and V. N. Nemykin

Abstract: In the title compound, C6H4N4S, the planar molecule lies across a crystallographic mirror plane. In the crystal, the molecules form centrosymmetric dimers through cyclic amino N-H...N hydrogen-bonding associations with cyano N-atom acceptors [graph set R22(12)] and these dimers are extended through amine-cyano N-H...N associations into a three-dimensional network.

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