rac-Dichlorido[3-eth­oxy-3-(1-ethyl-1H-benzimidazol-2-yl)-2,3-dihydro-1H-pyrrolo­[1,2-a]benzimidazole]­copper(II)

The title complex, [CuCl₂(C₂₁H₂₂N₄O)], contains a bis­(benzimidazole) unit with a chiral bridgehead C atom that forms part of a tetra­hydro­pyrrole ring fused to one of the benzimidazoles. The chelate angle is 90.45 (9)° and the dihedral angle between the essentially planar benzimidazole fragments is 26.68 (9)°. The Cu^II coordination geometry lies approximately midway between tetra­hedral and square planar. Overall, each chiral mol­ecule contains six fused rings, and a racemic mixture is formed with symmetry-related enanti­omers. In the crystal, C—H...π and C—H...Cl inter­actions link mol­ecules into a supra­molecular chain along the a-axis direction.