A Novel Three-dimensional（4,4）-Connected Coordination Polymer Based on Benzotriazole and Thiophene-2,5-dicarboxylic Acid: Synthesis, Crystal Structure,and Luminescence Properties
Key Laboratory of Preparation and Applications of Environmental Friendly Materials（Jilin Normal University）, Ministry of Education Department of Chemistry, Jilin Normal University
摘要：A novel coordination polymer [Zn2（BTA）2（TDC）]n（HBTA = benzotriazole, H2TDC = thiophene-2,5-dicarboxylic acid） has been synthesized by the reaction of zinc（Ⅱ）, H2TDC and HBTA. This compound is fully structurally characterized by elemental analysis, IR, and single-crystal X-ray crystallography. The bulk new materials were further identified by X-ray powder diffraction. Compound 1 crystallizes in the orthorhombic system, space group Pbcn, with a = 9.8825（8）, b = 9.4047（8）, c = 20.5567（17） ?, V = 1910.6（3） ?~3, C18H10N6O4SZn2, Mr = 537.12, Dc = 1.867 g/cm~3, μ（MoK α） = 2.662 mm-1, F（000） = 1072, Z = 4, S = 1.058, the final R = 0.0201 and w R = 0.0530 for 1700 observed reflections（I > 2σ（I））. Its compositional stability and photoluminescence properties were further investigated to establish the structure-property relationships. Structural analysis reveals that this compound is a 3D（4, 4）-connected framework with the（6~6）（6~4·8~2） topology.