title: Aqua-[1-(4-carb-oxy-phen-yl)-1H-imidazole-κN](pyridine-2,6-dicarboxyl-ato-κO,N,O)copper(II) monohydrate.
abstract: In the title complex, [Cu(C(7)H(3)NO(4))(C(10)H(8)N(2)O(2))(H(2)O)]·H(2)O, the Cu(II) ion is in a slightly distorted square-pyramidal geometry. Two carboxyl-ate O atoms and one pyridine N atom from a pyridine-2,6-dicarboxyl-ate ligand chelate the Cu(II) ion, forming two stable five-membered metalla rings. One imidazole N atom from a 1-(4-carb-oxy-phen-yl)imidazole ligand and one water mol-ecule complete the five-coordination. O-H⋯O hydrogen bonds involving the coordinated water mol-ecules and carboxyl-ate groups link the complex mol-ecules into chain-containing dinuclear macrocycles. O-H⋯O hydrogen bonds involving the uncoordinated water mol-ecules link the chains into a layer extending parallel to (10[Formula: see text]).
authors.affiliation: School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 330031, People's Republic of China.
authors.forename: Fanzhen
authors.initials: F
authors.lastname: Kong
authors.forename: Zhangyu
authors.initials: Z
authors.lastname: Yu