Tetra-μ-acetato-κ ⁸ O:O′-bis-[(3,5-dimethyl-1H- pyrazole-κN ²)-copper(II)]

The dinuclear centrosymmetric title compound, [Cu ₂(CH ₃CO ₂) ₄(C ₅H ₈N ₂) ₂], has a distorted squarepyramidal coordination geometry around each Cu ^II atom in which four O atoms from the bridging acetate ligands form the basal plane while two N atoms from the pyrazole ligands occupy the apical positions. The crystal has two half molecules in the asymmetric unit with a Cu⋯Cu distance of 2.6762 (4) Å. Disorder was found for two O atoms and two C atoms of one acetate ligand and refined with occupancies of 0.265 (7) and 0.735 (7). The crystal also features molecules linked through two N - H⋯O hydrogen bonds resulting in onedimensional chains extending along the crystallographic b axis.