论文部分内容阅读
采用水热法合成了一个配合物[Zn2(tpta)0.5(H2tpta)(dpe)(H2O)2]n(1)(H4tpta=三联苯-2,2′,4,4′-四羧酸,dpe=1,2-二(4-吡啶基)乙烯),并用元素分析、红外光谱、X-射线单晶衍射、热重分析和荧光分析对其进行了表征。晶体结构分析表明:该配合物属于三斜晶系,空间群为P1,a=1.017 4(2)nm,b=1.034 1(2)nm,c=1.883 1(4)nm,α=96.147(4)°,β=96.866(4)°,γ=98.023(4)°,V=1.932 2(7)nm3,Z=2,Dc=1.640 g·cm-3,μ=1.320 mm-1,F(000)=974,R1=0.066 9,wR2=0.133 2(I>2σ(I));具有环状双核锌(Ⅱ)连接的二维双层结构,双层之间又进一步通过O-H…O氢键组装成三维超分子结构。此外,该配合物具有较好的热稳定性和发光性能。
A complex of [Zn2 (tpta) 0.5 (H2tpta) (dpe) (H2O) 2] n (1) (H4tpta = terphenyl-2,2 ’, 4,4’-tetracarboxylic acid, dpe = 1,2-bis (4-pyridyl) ethylene) was synthesized and characterized by elemental analysis, IR spectroscopy, X-ray single crystal diffraction, thermogravimetric analysis and fluorescence analysis. The crystal structure analysis shows that the complex belongs to the triclinic system with a space group P1, a = 1.017 4 (2) nm, b = 1.034 1 (2) nm, c = 1.883 1 (4) nm and α = 96.147 (4) °, β = 96.866 (4) °, γ = 98.023 (4) °, V = 1.932 2 (7) nm3, Z = 2, Dc = 1.640 g · cm-3, μ = 1.320 mm- (000) = 974, R1 = 0.0669, wR2 = 0.133 2 (I> 2σ (I)); a two-dimensional bilayer structure with a ring of binuclear zinc (II) Hydrogen bond assembly into three-dimensional supramolecular structure. In addition, the complex has better thermal stability and luminescent properties.