N-乙基咔唑席夫碱EDA-NECD的合成及其对Cu^(2+)的识别研究  

Highly selective fluorescence detection of Cu^(2+) by the Schiff base of EDA-NECD

作　　者：韩巧荣[1] 江玉亮[1] 王炳祥[1] 

机构地区：[1]南京师范大学化学与材料学院江苏省生物功能材料重点实验室江苏省生物医药功能材料工程研究中心,江苏南京210097

出　　处：《功能材料》2011年第9期1588-1590,共3页Journal of Functional Materials

基　　金：江苏省自然科学基金资助项目(BK2008435)

摘　　要：由N-乙基咔唑-3-甲醛(NECD)与乙二胺(EDA)合成N-乙基咔唑席夫碱化合物EDA-NECD,用IR、1 H NMR等手段表征其结构;研究各种金属离子对其荧光性能的影响,结果表明Cu2+能显著地猝灭其荧光,而余者则几无影响;其紫外吸收峰值随着Cu2+浓度的增加而增加,表明二者存在着化学反应。EDA-NECD有望作为重金属离子Cu2+的荧光探针。The Schiff base of EDA-NECD was synthesized.Its structure was characterized by using IR,UV and 1H NMR.The fluorescent and the influence of different transitional metal ions such as Co2＋,Ca2＋,Zn2＋,Cu2＋,K＋,Ni2＋,Mn2＋,Pb2＋ on this Schiff base were studied systematically.The results showed this Schiff base exhibited a highly selective fluorescence quenching effect by Cu2＋ ions,while other metal ions almost no quenching happened.The absorption spectra increased with the addition of Cu2＋ into the solution of EDA-NECD,suggesting that chemical reaction occurred between the Cu2＋ and EDA-NECD.This Schiff base is promising to be the probe for the Cu2＋.

关 键 词：EDA-NECD 荧光 CU2+ 探针 

分 类 号：O625[理学—有机化学]