A Novel Three-dimensional（4,4）-Connected Coordination Polymer Based on Benzotriazole and Thiophene-2,5-dicarboxylic Acid: Synthesis, Crystal Structure,and Luminescence Properties

姜大雨隋微刘博王庆伟

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, M_r = 537.12, D_c = 1.867 g/cm³, 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（6⁶）（6⁴·8²） topology.

基金资助：

Supported by the Science and technology development plan of Jilin province（20150520006JH）； Science and technology research project of Education Department of Jilin province（2016219）；