title: Aqua-{6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}nickel(II).
abstract: The title complex, [Ni(C(18)H(18)N(2)O(4))(H(2)O)], lies on a mirror plane with the Ni(II) ion coordinated by two N and two O atoms of a tetra-dentate Schiff base ligand and one water O atom in a distorted square-pyramidal enviroment. The -CH(2)-CH(2)- group of the ligand is disordered equally over two sites about the mirror plane. The dihedral angle between the mean planes of the two symmetry-related chelate rings is 37.16 (6)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link complex mol-ecules into one-dimensional chains along [100] and these chains are linked, in turn, by very weak inter-molecular C-H⋯O hydrogen bonds into a two-dimensional network.
authors.affiliation: School of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China.
authors.forename: Zhenghua
authors.initials: Z
authors.lastname: Guo
authors.forename: Lianzhi
authors.initials: L
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Xu
authors.forename: Jinghong
authors.initials: J
authors.lastname: Li
authors.forename: Daqi
authors.initials: D
authors.lastname: Wang