Authors: De Souza, M.V.N.; Lima, C.H.S.; Wardell, J.L.; Wardell, S.M.S.V.; Tiekink, E.R.T.
Source: Acta Crystallographica. Section E, v. 67, p. 1714-1715, 2011.Publisher: International Union of Crystallography
Abstract
In the title compound, C13H12N4O2, all the non-H atoms lie on a crystallographic mirror plane and an intramolecular N-H
N hydrogen bond generates an S(5) ring; the conformation about the imine bond [1.280 (3) Å] is E. In the crystal, molecules assemble into a two-dimensional array via C-HO(carbonyl) and C-HN(pyrazine) contacts. Layers stack along the b-axis direction via weak ![[pi]](http://scripts.iucr.org/logos/entities/pi_rmgif.gif){kind=small}
– interactions between pyrazine rings [ring centroid distance = 3.8028 (8) Å].Keywords: NoneDocument Type: Research ArticleDOI: http://dx.doi.org/10.1107/S1600536811022938Publication date: 1 de Janeiro de 2011
