5,6-Bis(pyridin-2-yl)-2,3-di-hydro-pyrazine

摘要

The title compound, C14H12N4, has approximate twofold rotational symmetry. The pseudo-twofold axis bis-ects the C—C bonds of the di-hydro-pyrazine ring, which has a screw–boat conformation. The two pyridine rings are inclined to the mean plane of the di-hydro-pyrazine ring by 30.78?(11) and 39.37?(9)°, and to one another by 62.53?(10)°. The pyridine N atoms are?cis?to one another, with an N?N nonbonded distance of 3.101?(2)??. In the crystal, mol-ecules are linked?via?a pair of N—H?N hydrogen bonds, forming inversion dimers with an?R22(6) ring motif. These units are linked by further N—H?H hydrogen bonds, forming layers parallel to (302). The layers are linked by C—H?π?inter-actions, forming a three-dimensional framework.