The first one-dimensional metal–organic coordination polymer with 4-quinolineacarboxylate as building block: [Cd(μ2-H2O) (4-quinolinecarboxylato-O,O)2]

The hydro(solvo)thermal reaction of 4-quinolinecarbaldehyde with Cd(ClO4)2·6H2O yields a one-dimensional linear chain metal–organic coordination polymer with carboxylate-bridged and μ2-OH2: [Cd(μ2-H2O) (4-quinolinecarboxylato-O, O)2] 1 which is characterized by single crystal X-ray determination and IR. Crystallographic data for 1, C20H14CdN2O5, monoclinic, space group C2/c, a=15.368(2), b=14.399(2), c=7.7969(11) Å, β=92.507(3)°, Z=4, V=1723.7(4) Å3.