Bis(22′-bipyridine-κ2NN′)(3-methyl­benzoato-κ2OO′)zinc 3-methyl­benzo­ate–3-methyl­benzoic acid–water (1/1/2)

摘要

The title compound, [Zn(C8H7O2)(C10H8N2)2](C8H7O2)·C8H8O2·2H2O, is comprised of a Zn²⁺ cation, two 2,2′-bipydine (bipy) ligands and one 3-methyl­benzoate anion (L ⁻) together with one uncoordinating L ⁻ anion, one uncoordinating HL mol­ecule and two lattice water mol­ecules. The Zn^II atom is coordinated by four N atoms of two bipy ligands and two O atoms from one L ⁻ ligand in a distorted octa­hedral geometry. Pairs of centrosymmetrically related complex mol­ecules form dimers via slipped π-stacking inter­actions between bipy ligands with an inter­planar distance of 3.470 (4) Å. The dimers are linked into supra­molecular chains along [111], via C—H⋯O hydrogen bonds. The uncoordinated L ⁻ anions, HL mol­ecules and water mol­ecules are connected with each other via O—H⋯O hydrogen bonds, forming chains between the metal complex chains and binding them together via C—H⋯O contacts. The resulting layers parallel to (010) are further assembled into a three-dimensional supra­molecular architecture through additional C—H⋯O inter­actions.