A novel heptacoordinated cobalt(II) complex of 6,7-dicyanodipyridoquinoxaline (dcdpq): [Co(NO3)2(CH3CN)(dcdpq)]

The title complex, (aceto­nitrile)(6,7-di­cyano­dipyrido­[3,2-f;2,3-h]­quinoxine)­di­nitro­cobalt(II), [Co(NO3)2(C2H3N)(C16H6N6)], crystallizes in the monoclinic system with space group P21. The CoII center is heptacoordinated by two N atoms of the pyridine moieties, four O atoms of two nitrate anions and one N atom of a CH3CN mol­ecule. The crystal structure reveals that the CoN3O4 coordination sphere has a distorted pentagonal-bipyramid geometry.