Tris(110-phenanthroline-κ2 NN′)zinc(II) bis­(4-bromo­benzoate) 6.5-hydrate

摘要

In the title compound, [Zn(C12H8N2)3](C7H4BrO2)2·6.5H2O, the Zn^II atom is coordinated by six N atoms from three 1,10-phenanthroline (phen) mol­ecules in a distorted octa­hedral geometry. The chelating phen ligands exhibit nearly perfect coplanarity (r.m.s. deviations of 0.048, 0.039 and 0.061 Å). The mean inter­planar distances of 3.51 (2) and 3.54 (4) Å between adjacent phen ligands indicate π–π stacking inter­actions, which connect the complex cations into chains along [101]. The 4-bromo­benzoate anions and the uncoordinated water mol­ecules, parts of which are not fully occupied, are linked by O—H⋯O hydrogen bonds. Two carboxyl­ate O atoms and one Br atom in the 4-bromo­benzoate anions are each disordered over two sites with occupancy factors of 0.60 and 0.40.