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[Contents scheme]

Acta Cryst. (2013). E69, o891
[ doi:10.1107/S1600536813012531 ]


P. S. Nayak, B. Narayana, J. P. Jasinski, H. S. Yathirajan and B. K. Sarojini

Abstract: In the title compound, C12H10BrN3O, the dihedral angle between the mean planes of the 4-bromophenyl and pyrazin-2-yl rings is 54.6 (3)°. An intramolecular C-H...O hydrogen bond generates an S(6) graph-set motif. In the crystal, weak N-H...N hydrogen bonds link the molecules into chains along [100]. The chains are linked via C-H...N and C-H...O hydrogen bonds, forming two-dimensional networks lying parallel to the ab plane.

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