catena‐Poly­[[chloro(1,10‐phenanthroline‐κ2N,N′)copper(II)]‐μ‐imidazolato‐κ2N:N′]

In the polymeric title compound, Cu(im)Cl(phen)]_n, where im is the imidazolate anion (C₃H₃N₂) and phen is 1,10‐phenanthroline (C₁₂H₈N₂), each Cu^II ion is five‐coordinated by four basal N atoms (two from two different im anions and two from one phen ligand) and one axial Cl atom, in a distorted square‐pyramidal coordination geometry. Moreover, each im anion bridges two identical {CuCl(phen)}⁺ cations through its two N atoms, resulting in a one‐dimensional zigzag chain along the crystallographic a axis. In addition, pairs of adjacent chains are staggered by π–π interactions, generating a two‐dimensional layer, and neighbouring layers are further linked by two different kinds of C—H⋯Cl interactions, producing a three‐dimensional network.