Abstract
In the title compound, [Zn(C6H6N4)2(H2O)2](C16H8O8), the ZnII atom, located on an inversion centre, is coordinated by two aqua and two bidentate biimidizole ligands, resulting in a slightly distorted octahedral ZnO2N4 geometry. The four N atoms from the two biimidizole ligands lie in the equatorial plane and the two aqua O atoms lie in the axial sites. The biphenyltetracarboxylate anion also lies on an inversion centre. The ZnII complex cation and the anion are held together by N—H⋯O hydrogen bonds, forming a zigzag chain along [21]. The chains are further connected by water molecules via O—H⋯O hydrogen bonds.
Highlights
ZnII atom, located on an inversion centre, is coordinated by two aqua and two bidentate biimidizole ligands, resulting in a slightly distorted octahedral ZnO2N4 geometry
H atoms treated by a mixture of independent and constrained refinement max = 0.28 e Å3
Atoms from the two biimidizole ligands lie in the equatorial plane and the two aqua O atoms lie in the axial sites
Summary
H atoms treated by a mixture of independent and constrained refinement max = 0.28 e Å3. R factor = 0.036; wR factor = 0.096; data-to-parameter ratio = 12.3. ZnII atom, located on an inversion centre, is coordinated by two aqua and two bidentate biimidizole ligands, resulting in a slightly distorted octahedral ZnO2N4 geometry. The four N atoms from the two biimidizole ligands lie in the equatorial plane and the two aqua O atoms lie in the axial sites. The biphenyltetracarboxylate anion lies on an inversion centre. The ZnII complex cation and the anion are held together by N—H O hydrogen bonds, forming a zigzag chain along [211]. The chains are further connected by water molecules via O—H O hydrogen bonds
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