Abstract
In the trinucler CuII complex molecule of the title compound, [Cu3(C5HN2O4)2(H2O)8]·4H2O, the central CuII atom is located on an inversion centre and is coordinated in a distorted octahedral geometry. The equatorial sites are occupied by two N and two O atoms from two pyrazole-3,5-dicarboxylate ligands and the axial positions are occupied by two water molecules. The two other symmetry-related CuII atoms are pentacoordinated and assume a square-pyramidal geometry. In the crystal structure, coordinated and uncoordinated water molecules and carboxylate O atoms are linked by O—H⋯O hydrogen bonds.
Highlights
H atoms treated by a mixture of independent and constrained refinement max = 0.89 e Å3
[Cu3(C5HN2O4)2(H2O)8]4H2O, the central CuII atom is located on an inversion centre and is coordinated in a distorted octahedral geometry
The equatorial sites are occupied by two N and two O atoms from two pyrazole-3,5dicarboxylate ligands and the axial positions are occupied by two water molecules
Summary
Shenzhen Environmental Monitoring Center, Shenzhen 518008, People’s Republic of China, bShenzhen Environmental Protecting Bureau, Shenzhen 518008, People’s.
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