{μ-Bis(1-methyl-imidazol-2-yl)methane-κN:N}bis-{[(1-methyl-imidazol-2-yl)methane-κN,N]copper(I)} bis-(tri-fluoro-methane-sulfonate).

The title compound, [Cu(2)(C(9)H(12)N(4))(3)](CF(3)SO(3))(2), contains two Cu(I) ions, three bis-(1-methyl-imidazol-2-yl)methane (Me(2)BIM) ligands, and two trifluoromethanesulfonate anions in the asymmetric unit. Each Cu(I) ion has a distorted trigonal-planar geometry and is coordinated by two N atoms from the Me(2)BIM ligand and another N atom from the Me(2)BIM that acts as a bridging ligand, another N atom of the bridging Me(2)BIM being linked to the second Cu(I) ion. The imidazole rings of Me(2)BIM form intra-molecular π-π stacking inter-actions [centroid-centroid distances = 3.445 (2) and 3.547 (2) Å].