A Novel Three-dimensional Triazole-based Zinc(II) Coordination Polymer Controlled by the Spacers of Dicarboxylate Ligand with (4(2),6(2),8(2))(4,6(2),8(3)) Topology

A novel mixed-ligand coordination polymer [Zn(BTA)(ip)(0.5)](n)(1, HBTA = benzo-triazole, H(2)ip = isophthalic acid) has been synthesized under hydrothermal conditions, which was further characterized by X-ray diffraction, IR spectrum, elemental analysis and TG-DTA experiments. Complex 1 crystallizes in monoclinic system, space group Pnma with a = 8.9731(5), b = 22.0477(12), c = 10.0217(5) angstrom, V = 1982.66(18) angstrom(3) , Z = 8, C10H6ZnN3O2, M-r = 265.55, D-c = 1.779 g/cm(3), mu = 2.462 mm(-1), F(000) = 1064, the final R = 0.0225 and wR = 0.0652 with I > 20 sigma(I). This complex is a 3D framework with the (4(2),6(2),8(2))(4,6(2),8(3)) topology. Furthermore, the thermal stability of complex 1 is observed to be dependent on the polymeric structure nature. Strong solid-state luminescence emissions suggest that complex 1 is a good candidate for light emission materials.