Ontology highlight
ABSTRACT:
SUBMITTER: de Souza MV
PROVIDER: S-EPMC3152029 | biostudies-literature | 2011 Jul
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20110618 Pt 7
In the title compound, C(13)H(12)N(4)O(2), all the non-H atoms lie on a crystallographic mirror plane and an intra-molecular 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, mol-ecules assemble into a two-dimensional array via C-H⋯O(carbon-yl) and C-H⋯N(pyrazine) contacts. Layers stack along the b-axis direction via weak π-π inter-actions between pyrazine rings [ring centroid distance = 3.8028 (8) Å]. ...[more]