Crystal structure, magnetic and photoelectric properties of coordination polymer [Co2(C3H4N2)4(C10H2O8)]n

A novel Co(II) coordination polymer bridged by 1,2,4,5-benzene-tetracarboxylate is solvothermally synthesized, which possesses one-dimensional chain structure. The complex crystallizes in the triclinic crystal system, P (1) over bar space group, a = 0.9610(1) not, b = 0.9684(1) not, c = 0.7924(1) nm, alpha = 96.695(9)degrees, beta = 102.741(6)degrees, gamma = 116.551(5)degrees, V = 0.6236(2) nm(3), Z = 2, R-1 = 0.0342, wR(2) = 0.0990. The surface photovoltage spectra measurement shows that the title complex exhibits obvious photovoltage response in the 300-800 nm regions. The variable temperature susceptibility reveals that the complex possesses weak antiferromagnetic property.