Aqua-dicrotonato(di-2-pyridyl-amine)cobalt(II).

The Co atom in the title complex, [Co(CH(3)CHCHCOO)(2)(C(10)H(9)N(3))(H(2)O)], has a distorted recta-ngular-pyramidal geometry formed by the chelating dipyridylamine ligand, and two O atoms of monodentate carboxyl-ate groups of two different crotonate anions and a water molecule. The complex forms a three-dimensional supra-molecular network via inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen-bonding contacts.