Bis(2,2-bi­pyridine-N,N′)tetra-μ-chloro-tetracopper(I)

A novel centrosymmetric chair-like dimer, bis(2,2′-bi­pyridine)-1κ²N,N′;3κ²N,N′-tetra-μ-chloro-1:2κ²Cl;­2:3κ²Cl;­3:4κ²Cl;1:4κ²Cl-tetra­copper(I), [Cu₄Cl₄­(C₁₀­H₈­N₂)₂], has been solvothermally synthesized and structurally characterized. The complex self-assembles into a three-dimensional network via C—H⃛Cl hydrogen bonds, π–π stacking and weak Cu⃛Cl electrostatic interactions.