Bis(2,2′:6′,2′′-terpyridine)cobalt(II) bis(tricyanomethanide)

Abstract

The title complex, [Co(C15H11N3)2](C4N3)2, is built up from discrete [Co(terpy)2]2+ cations (terpy is 2,2′:6′,2′′-terpyridine) and [C(CN)3]− anions. In the cation, the CoII atom is coordinated by two terpy molecules, giving a distorted octahedral geometry. The tricyanomethanide anions are not directly coordinated to the CoII atom, but some weak C—H...N hydrogen bonds involving the terminal N atoms of the tricyaomethanide ions and the terpyridine H atoms link anions and cations building a three-dimensional network.