(μ-4-Bromo-3,5-dimethyl-pyrazolato-κ(2)N(1):N(2))-μ-chlorido-bis-[bis(4-bromo-3,5-dimethyl-pyrazole-κN(2))chloridocopper(II)] acetonitrile monosolvate.

In the title dinuclear complex, [Cu(2)(C(5)H(6)BrN(2))Cl(3)(C(5)H(7)BrN(2))(4)]·CH(3)CN, both Cu(II) ions are in slightly distorted square-pyramidal coordination geometries. The basal planes are defined by three N atoms from three 4-bromo-3,5-dimethyl-pyrazolate ligands, one of which is bridging, and one Cl ligand. A bridging Cl ligand forms the apical site for both Cu(II) ions. In the crystal, N-H⋯Cl hydrogen bonds connect complex mol-ecules into chains along [100]. Intra-molecular N-H⋯Cl hydrogen bonds are also observed.