Cd(Ⅱ)配位聚合物的合成及其对六价铬含氧酸根离子的荧光识别  

Synthesis of Cd(Ⅱ)coordination polymer and its fluorescence recognition for hexavalent chromium oxylate ion

作　　者：董艳秋 赵雄 白旭玲 王凯民 董雪艳 樊瑞峰 孙蔚青 马钰璐 DONG Yanqiu;ZHAO Xiong;BAI Xuling;WANG Kaimin;DONG Xueyan;FAN Ruifeng;SUN Weiqing;MA Yulu(School of Chemistry&Environment,Yunnan Minzu University,Kunming 650504,China;School of Pharmaceutical Sciences,Kunming Medical University/Yunnan Key Laboratory of Pharmacology for Natural Products,Kunming 650500,China)

机构地区：[1]云南民族大学化学与环境学院,云南昆明650504 [2]昆明医科大学药学院/天然药物药理云南省重点实验室,云南昆明650500

出　　处：《中山大学学报（自然科学版）（中英文）》2023年第5期181-186,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金(21762049);云南省科技厅基础研究项目(202001AU070111);云南省教育厅科学研究基金(2023J0595)。

摘　　要：在溶剂热条件下,用三羧酸衍生物5-((4-羧基苄基)氨基)间苯二甲酸(H_(3)L)和4,4’-二甲基-2,2’-联吡啶(dbpy)作为混合配体与Cd(Ⅱ)构建出具有荧光性质的配位聚合物,即[Cd_(2)(L)(dbpy)_(2)(HCOO)(H_(2)O)]·2H_(2)O(CP 1)。通过X射线单晶衍射、X射线粉末衍射和热重分析对其进行表征,结果表明CP 1是一个双核二维层状结构。此外,CP 1具有良好的荧光性,能够对水溶液中的六价铬含氧酸根离子(Cr_(2)O_(7)^(2-)和CrO_(4)^(2-))实现选择的荧光猝灭检测。Under solvothermal conditions,a coordination polymer with fluorescence properties was constructed by using tricarboxylic acid derivative 5-((4-carboxybenzyl)amino)isophthalic acid(H_(3)L)and 4,4'-dimethyl-2,2'-bipyridine(dbpy)as mixed ligands with Cd(Ⅱ),namely[Cd_(2)(L)(dbpy)_(2)(HCOO)(H_(2)O)]·2H_(2)O(CP 1).Characterizing by X-ray single crystal diffraction,X-ray powder diffraction and thermogravimetric analysis,CP 1 was identified as a binuclear two-dimensional layered structure.In addition,CP 1 has good fluorescence,and can realize selective fluorescence quenching detection for hexavalent chromium oxylate ions(Cr_(2)O_(7)^(2-)and CrO_(4)^(2-))in aqueous solution.

关 键 词：配位聚合物 荧光传感器 六价铬含氧酸根离子 重铬酸根检测 铬酸根检测 

分 类 号：O614.812[理学—无机化学]