多功能Zn(Ⅱ)金属有机骨架荧光传感器检测苯甲醛、四环素、2,4,6-三硝基苯甲酸、氟啶胺、Cr_(2)O_(7)^(2-)和Fe^(3+)  

Multifunctional Zn(Ⅱ)metal-organic framework fluorescent sensor to detect C6H5CHO,tetracycline,2,4,6-trinitrophenol,fluazinam,Cr_(2)O_(7)^(2-)-and Fe^(3+)

作　　者：崔华莉[1] 徐心悦 刘文 陈小莉[1] 杨华[1] 刘琳 王记江[1] CUI Hua-Li;XU Xin-Yue;LIU Wen;CHEN Xiao-Li;YANG Hua;LIU Lin;WANG Ji-Jiang(School of Chemistry and Chemical Engineering,Shaanxi Key Laboratory of Chemical Reaction Engineering,Laboratory of New Energy&New Function Materials,Yan′an University,Yan′an,Shaanxi 716000,China)

机构地区：[1]延安大学化学与化工学院,陕西省反应工程重点实验室,新能源新功能材料实验室,延安716000

出　　处：《无机化学学报》2023年第7期1389-1406,共18页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21763028);陕西省科技厅科学研究计划项目(No.2022QFY07-05,2022NY-071);延安市科学研究计划项目(No.2022SLJBZ-002)资助。

摘　　要：成功制备了新型Zn(Ⅱ)金属有机骨架(MOF)[Zn_(2)(Hdepa)(dya)_(2)]_(n)(1)(H_(5)depa=2,2’,3,4’,5-二苯醚五羧酸,dya=2,2’-二吡啶胺)。单晶X射线衍射分析表明MOF 1由2个Zn^(2+)离子与1个Hdepa^(4-)离子和2个dya分子连接组成,通过氢键形成三维骨架。用粉末X射线衍射和IR表征了配合物1的相纯度。值得注意的是,配合物1具有优异的荧光特性和热稳定性,1的高灵敏度和选择性使其能够作为荧光传感器检测苯甲醛(BZH)、四环素(TC)、2,4,6-三硝基苯酚(TNP)、氟啶胺(Flu)、Cr_(2)O_(7)^(2-)和Fe^(3+)。此外,通过荧光寿命分析了Fe^(3+)、TC、BZH对MOF 1的荧光的猝灭过程,通过能量转移研究了Fe^(3+)、Cr_(2)O_(7)^(2-)、TNP、TC、BZH和Flu的荧光猝灭机理。A novel Zn(Ⅱ)metal-organic framework(MOF)[Zn_(2)(Hdepa)(dya)_(2)]_(n)(1)(H_(5)depa=2,2',3,4',5-diphenyl ether pentacarboxylic,dya=2,2'-dipyridyl amine)was successfully prepared.Single-crystal X-ray diffraction analysis indicates that MOF 1 is composed of two Zn^(2+)ions joining one Hdepa4-ion and two dya molecules,forming a 3D framework through hydrogen bonding.The phase purity of the MOF 1 was demonstrated by powder X-ray diffraction and IR.Interestingly,1 has excellent fluorescence properties and thermal stability.Notably,due to its excellent fluorescence performance,the high sensitivity and selectivity of 1 enable it to be used as a fluorescence sensor to detect C_(6)H_(5)CHO(BZH),tetracycline(TC),2,4,6-trinitrophenol(TNP),fluazinam(Flu),Cr_(2)O_(7)^(2-),and Fe^(3+).In addition,the quenching process of Fe^(3+),TC,and BZH to MOF 1 was analyzed by fluorescence lifetime,and the fluorescence quenching mechanism of Fe^(3+),Cr_(2)O_(7)^(2-),TNP,TC,BZH,and Flu was studied by energy transfer.

关 键 词：Zn(Ⅱ)金属有机骨架 晶体结构 荧光传感器 

分 类 号：O614.241[理学—无机化学]