title: Bis(1H-imidazole-κN)bis-(2-methyl-benzoato-κO)bis-(2-methyl-benzoic acid-κO)copper(II).
abstract: The structure of the title compound, [Cu(C(8)H(7)O(2))(2)(C(3)H(4)N(2))(2)(C(8)H(8)O(2))(2)], consists of centrosymmetric monomeric units, in which the Cu(II) atom has a tetra-gonally distorted octa-hedral coordination involving two imidazole N atoms and two carboxyl-ate O atoms in the square plane [Cu-N = 1.964 (3) and Cu-O = 1.960 (2) Å] and 2-methyl-benzoic acid O atoms in axial sites [Cu-O = 2.753 (3) Å]. Within the complex, the carb-oxy-lic acid forms intra-molecular O-H⋯O hydrogen bonds, while the mol-ecules are assembled through N-H⋯O(carbox-yl) hydrogen bonds into chains extending along the a-axis direction. These chains are further linked by weak π-π inter-actions [centroid-centroid separation = 3.930 (2) Å].
authors.affiliation: Department of Chemistry, Huzhou Teachers College, Huzhou, Zhejiang 313000,  People's Republic of China.
authors.forename: Sheng-Liang
authors.initials: SL
authors.lastname: Ni
authors.forename: Ming-Xing
authors.initials: MX
authors.lastname: Zhao
authors.forename: Hai-Xia
authors.initials: HX
authors.lastname: Ge
references.citation: Chem Rev. 2001 Jun;101(6):1629-58
references.pmid: 11709994
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677