A novel coordination polymer with double chains structure: hydrothermal syntheses, structures and magnetic properties of [Cu(phen)(H2O)2SO4]n (phen=1,10-phenanthroline)

A coordination polymer [Cu(phen)(H2O)2(SO4)]n (1) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, thermogravimetric analysis, and single crystal X-ray diffraction. This compound displays a novel double chains structure, in which each one-dimensional chain is constituted by the distorted octahedral complex of copper(II) bridged through bidentate sulfate ligands. Magnetic susceptibility measurement of 1 has been performed down to 2 K. Although paramagnetic behavior is dominantly manifested, compound 1 shows a weak antiferromagnetic interaction on cooling from room temperature to 2 K.