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Acta Cryst. (2013). E69, o1635
[ doi:10.1107/S1600536813027426 ]

N'-[(E)-3-Bromo­benzyl­idene]pyrazine-2-carbohydrazide

M. Ahmad, S. Hameed, M. N. Tahir, M. Anwar and M. Israr

Abstract: In the title compound, C12H9BrN4O, the dihedral angle between the aromatic rings is 12.16 (12)°. An intra­molecular N-H...N hydrogen bond closes an S(5) ring. In the crystal, C-H...O hydrogen bonds link the mol­ecules into C(6) chains propagating in [010]. Very weak aromatic [pi]-[pi] stacking [centroid-centroid separations = 3.9189 (15) and 3.9357 (15) Å] is also observed.


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