A novel maze-type network assembled by copper(II) and 2,2′-dicarboxydiphenylthioether: [(Cu4(C5H5N)8{S(C6H4CO2)2}4(H2O)2]·2H2O)n

A novel polymeric copper(II) complex ([Cu4(C5H5N)8{S(C6H4CO2)2}4(H2O)2]·2H2O)n assembled by 2,2′-dicarboxydiphenylthioether and pyridine and bridged by carboxylato groups has been synthesised and structurally characterised by single crystal X-ray structural studies. The maze-type structure contains one tetranuclear 40- and one dinuclear 8-membered metallocycles, both of which are centrosymmetric and form the repeat unit in the polymer chain.