In the title salt, [Cu(NO3)(C7H6N2)4]NO3, one nitrate anion is coordinated to the CuII atom, which is also coordinated by the N The Development of Knowledge Enrichment Books Concerning Ice and Snow Physical Studies for High-School Students atoms of four N-heterocycles.The geometry at the metal atom is a square pyramid in which the O atom of the anion occupies the apical position [Cu—O = 2.468 (5) and 2.590 (7) Å in the two independent formula units].
The cation lies on a twofold rotation axis; the coordinated nitrate anion is also disordered about this symmetry DNA Movies and Panspermia element.The lattice anion is also disordered about a twofold rotation axis.In the crystal, the cations are linked to the coordinated and free anions by N—H.O hydrogen bonds.