Tetraaqua(1,10-phenanthroline-kappa(2)N,N')cobalt(II) dinitrate: a hydrogen-bonded supramolecular network.

The structure of the title compound, [Co(C(12)H(8)N(2))(H(2)O)(4)](NO(3))(2), consists of tetraaqua(1,10-phenanthroline)cobalt(II) cations and nitrate anions. The Co atom is located on a twofold rotation axis and is coordinated by the two N atoms of a 1,10-phenanthroline ligand and four O atoms of water molecules. The cations and anions are linked by hydrogen-bond interactions into a three-dimensional supramolecular network.