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

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 π–π stacking [centroid–centroid separations = 3.9189 (15) and 3.9357 (15) Å] is also observed.