title: Aqua-(6,6'-oxydipicolinato-κO,N,N',O')copper(II).
abstract: In the title complex, [Cu(C(12)H(6)N(2)O(5))(H(2)O)], the Cu(II) ion is in a slightly distorted square-pyramidal coordination environment with two N and two O atoms from a 6,6'-oxydipicolinate ligand occupying the basal plane and a water ligand in the apical site. The dihedral angle between the two pyridine rings is 5.51 (6)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into a two-dimensional network. In addition, weak inter-molecular C-H⋯O and C=O(lone pair)⋯π(ring) inter-actions, with O⋯ring-centroid distances of 3.697 (4) and 3.094 (4) Å, provide additional stabilization.
authors.affiliation: College of Marine Sciences, Zhejiang Ocean University, Zhoushan 316000, People's Republic of China.
authors.forename: Jingya
authors.initials: J
authors.lastname: Sun
authors.forename: Xiangdi
authors.initials: X
authors.lastname: Tong