title: trans-Diaqua-bis[(E)-3-(dimethyl-amino)-1-(2-pyrid-yl)prop-2-en-1-one-κN,O]cobalt(II) dinitrate dihydrate.
abstract: In the title compound, [Co(C(10)H(12)N(2)O)(2)(H(2)O)(2)](NO(3))(2)·2H(2)O, the Co(II) ion, located on an inversion center, is trans-coordinated by two N,O-bidentate chelating (E)-3-(dimethyl-amino)-1-(2-pyrid-yl)prop-2-en-1-one ligands and by two water mol-ecules in a slightly distorted octa-hedral geometry. Inter-molecular O-H⋯O hydrogen bonds link the cations, anions and water mol-ecules into layers parallel to the ac plane. The crystal packing also exhibits weak inter-molecular C-H⋯O hydrogen bonds.
authors.affiliation: Deparment of Chemistry and Chemical Engineering, Hefei Teachers College, Hefei, 230061, People's Republic of China.
authors.forename: Jian-Hong
authors.initials: JH
authors.lastname: Bi