Dimethyl 6,6'-dicyano-2,2'-bipyridine-3,3'-dicarboxyl-ate

Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 8;65(Pt 5):o985. doi: 10.1107/S1600536809012446.

Abstract

In the title compound, C(16)H(10)N(4)O(4), the two pyridine rings are twisted by 44.41 (2)° and the ester groups form dihedral angles of 48.77 (4) and 45.75 (2)° with the corresponding pyridine rings. The crystal structure is stabilized by inter-molecular C-H⋯O hydrogen bonds and π-π stacking inter-actions between the pyridine rings [centroid-to-centroid distance 3.797 (2) Å].