Synthesis, crystal structure, and magnetic properties of bis(aqua)[μ-(terepthalato-κo,κo′)]copper(II)monohydrate [Cu(C8O4)(OH2)2]·H2O

A novel one dimensional Cu(II) coordination polymer [Cu(C8O4)(OH2)2] ·H2O 1 has been synthesized and characterized by elemental analysis, IR spectroscopy, X-ray crystal diffraction and magnetic measurements. Single-crystal structural analysis shows that complex 1 consist of 1D Cu(II) chain containing threefold bridging ligands, one (syn–syn) carboxylate and two water molecules. The magnetic study of 1 has been investigated, indicating an overall antiferromagnetic interaction in the complex.

The complex [Cu(C8O4)(OH2)2] ·H2O was prepared by the reaction of solid copper(II)basic carbonate with an aqueous solution of sodium terephthalate under heating at 50–60 oC after which it was allowed to crystallize at room temperature. The structure of the complex is distorted octahedral. Magnetic study of the complex reveals antiferromagnetic behaviour. Figure optionsDownload as PowerPoint slideHighlights
► A novel copper(II) coordination polymer with terepthalate dianion was grown in an aqueous solution.
► The single crystal growth temperature was 25 °C for period of two weeks.
► The magnetic property of the complex was studied using SQUID.
► The complex showed antiferromagnetic properties.