基于吡咯希夫碱衍生物的荧光比色阴离子探针  

Fluorescence and Colorimetric Anion Sensor Based on Pyrrole Derivative as Its Schiff Base

作　　者：刘阁[1] 邵杰[2] 

机构地区：[1]a赤峰学院化学系,赤峰024000 [2]b南京林业大学化学与材料科学系,南京210037

出　　处：《化学学报》2011年第9期1070-1074,共5页Acta Chimica Sinica

基　　金：内蒙古自治区高等学校自然科学(No.NG09168);南京林业大学启动经费(No.163101026)资助项目

摘　　要：根据受体-信号体耦合法,设计合成了一个基于吡咯希夫碱衍生物的阴离子探针分子(1,4-二醛基吡咯-2,4-二硝基苯基二腙,1).通过核磁共振谱、质谱和元素分析表征其结构;利用荧光光谱,紫外可见吸收光谱以及1H NMR等手段研究了其与F-,AcO-,H 2 PO-4,Cl-,Br-,I-等离子的作用.结果表明:在不借助任何其它昂贵仪器的情况下,该探针分子在干燥的DMSO溶液中能够较好地比色检测F-,AcO-和H2PO-4离子.此外,F-,AcO-,H2PO-4等离子的加入使得1的荧光强度在413nm处发生了明显的增强,而其它被测的阴离子仅引起1的荧光略微变化,Job法实验得出该探针与阴离子的结合比为1∶1.An anion probe molecule based on pyrrole derivative as its Schiff base （1,4-dicylaldehydepyrrole-2′,4′-dinitrophenyl-hydrazone, 1） was designed and synthesized according to the binding site-signaling subunit approach. The compound was characterized by 1H NMR, ESI-MS and ele- mental analyses. The binding properties of the probe with anions such as F-, AcO-, H2PO4, CI-, Br- and I- were evaluated by fluorescence, UV-Vis and 1H NMR spectra. The results obtained indicated that the compound 1 was a probe for colorimetric detection of F-, AcO-, HzPO4, without resorting to any expen- sive spectroscopic instrumentation. In addition, addition of F-, AcO-, H2PO4 resulted in significant en- hancement of the fluorescence of 1 at 413 nm, whereas the other anions tested had little influence on the fluorescence of 1. Job＇s plot showed the formation of 1/anions complexes of 1 ： 1 stoichiometry.

关 键 词：阴离子探针 比色 吡咯 荧光 希夫碱 

分 类 号：X832[环境科学与工程—环境工程]