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基于含2-硫代海因共轭聚合物的荧光探针
引用本文:瞿金清,曾伟锋,陈秀丽,路新卫,刘瑞源. 基于含2-硫代海因共轭聚合物的荧光探针[J]. 广州化工, 2014, 0(18): 1-3,18
作者姓名:瞿金清  曾伟锋  陈秀丽  路新卫  刘瑞源
作者单位:1. 华南理工大学化学与化工学院,广东 广州,510640
2. 南方医科大学药学院,广东 广州,510515
基金项目:国家自然科学基金(51173050;21376092);广东省医学科研基金(A2010355)。
摘    要:设计合成含2-硫代海因的小分子对照物1和聚苯撑乙炔poly(1)。通过一系列阴离子的正四丁基铵盐的DMSO溶液来评价聚合物的阴离子识别性能。加入F-后,poly(1)的DMSO溶液荧光淬灭;然而,加入Cl-,Br-,HSO-4,NO-3和CH3CO-2后,poly(1)溶液荧光不变,说明poly(1)对氟离子有荧光识别能力。Poly(1)对F-的Stern-Volmer淬灭常数为7.09×104M-1,相应地,对照物1对F-的Stern-Volmer淬灭常数为5.10×102M-1,说明了poly(1)具有增强淬灭效应。

关 键 词:-硫代海因  阴离子识别  共轭聚合物  荧光传感器

Fluorescent Probe Based on Poly (phenyleneethynylenes) Containing 2-thiohydantoin
QU Jin-qing,ZENG Wei-feng,CHEN Xiu-li,LU Xin-wei,LIU Rui-yuan. Fluorescent Probe Based on Poly (phenyleneethynylenes) Containing 2-thiohydantoin[J]. GuangZhou Chemical Industry and Technology, 2014, 0(18): 1-3,18
Authors:QU Jin-qing  ZENG Wei-feng  CHEN Xiu-li  LU Xin-wei  LIU Rui-yuan
Affiliation:QU Jin-qing;ZENG Wei-feng;CHEN Xiu-li;LU Xin-wei;LIU Rui-yuan;School of Chemistry and Chemical Engineering,South China University of Technology;School of Pharmaceutical Sciences,Southern Medical University;
Abstract:Novel of small molecule counterpart and poly (phenyleneethynylenes)(1) bearing 2-thiohydantoin were synthesized.The anion sensing ability of poly ( 1 ) were estimated via the tetra -n-butylammonium ( TBA ) salts of a series of anions in DMSO.The addition of F -quenches the fluorescence , the fluorescence of the solution only changed slightly upon adding other anions of Cl -, Br-, HSO4-, NO3-and CH3CO2-, indicating the sensing ability of poly (1) towards F -.The Stern-Volmer quenching constant of poly (1) causes by F -was 7.09 ×104 M-1 , while that of the small molecule counterpart was 5.10 ×102 M-1 , indicating the amplified quenching effect of poly (1).
Keywords:2-thiohydantoin  anion recognition  conjugated polymer  fluorescent sensor
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