3,4-二苯基噻吩-2,5-二甲酸金属盐的合成及结构表征  

Synthesis and structural characterization of metal complexes of 3,4-diphenylthiophene-2,5-dicarboxylic acid

作　　者：王家喜[1] 张明[1] 张海召[1] 杨永登[1] 李云庆[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《河北工业大学学报》2016年第1期63-67,共5页Journal of Hebei University of Technology

摘　　要：利用3,4-二苯基噻吩-2,5-二甲酸的钠盐与金属氯化物反应合成了6种金属配合物.元素分析表明配合物的组成为MD 2H2O(M=Mg,Ca,Ni,Cu,Zn)和La2D36H2O.红外光谱分析表明,羧基主要以螯合方式与Mg、Ca、La离子配位,以单齿方式与Ni、Cu、Zn离子配位.荧光光谱显示Zn D和Ni D具有荧光增强效应,其它盐荧光减弱,铜盐荧光淬灭.XRD分析表明Zn D、Ni D、Ca D具有层状结构,Cu D、Mg D形成粉晶,而La2D3因复杂的螯合配位形成结晶性较差的无定形粉末.SEM进一步证明了Zn D具有层状纤维结构.Six metal complexes of 3,4-diphenylthiophene-2,5-dicarboxylic acid （H2D） were synthesized by the reactions of Na2D with metal chlorides. The apparent structure of the complexes confirmed by elemental analysis was MD. 2H2O （M=Mg, Ca, Ni, Cu, Zn） and La2D3. 6H2O. Based on FT-IR spectra analysis, earboxyl of the ligand linked with Mg, Ca, La ion in chelating model and with Ni, Cu, Zn in monodentate model, respectively. The emission spectra showed that fluorescence of ZnD and NiD salts was enhanced, while fluorescence of the copper salt was quenched and that of the other salts was abated. XRD analysis showed that ZnD, NiD and CaD had a layered structure, while CuD and MgD were a micro crystal and La2D3was amorphous powder due to the complex chelating ofcarbonyl to La. The layered fiber structure of ZnD was further confirmed by SEM.

关 键 词：噻吩-2 5-二甲酸 金属配合物 合成 荧光 层状结构 

分 类 号：O614[理学—无机化学]