A highly selective fluorescence chemosensor for Pb(II) in neutral buffer aqueous solution |
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| Authors: | Jing Cao Hai Yan Deng Chen Hui Wang Yao Xiao Ming Ren You Wei Zhang |
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| Institution: | 1. College of Chemistry, Xiangtan University , Xiangtan, Hunan, 411105, P.R. China;2. Key Laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University , Xiangtan, Hunan, 411105, P.R. China caojing8088@xtu.edu.cn;4. College of Chemistry, Xiangtan University , Xiangtan, Hunan, 411105, P.R. China |
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| Abstract: | A 3,4-dimethylthieno2,3-b]thiophene-based fluorogenic probe bearing benzod]-thiazole-2-thio unit (sodium 3,4-bis ((benzod]thiazol-2-ylthio)methyl) thieno 2, 3-b]thio-phene-2, 5-dicarboxylate) was developed as a novel fluorescent chemosensor with high selectivity towards Pb(II) over other cations tested. The new probe exhibited good water solubility and only sensed Pb(II) among metal ions examined in neutral 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid buffer solution. The selectivity and sensitivity of fluorogenic probe to Pb(II) were discussed on the basis of experimental results. |
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| Keywords: | fluorescence chemosensor neutral aqueous solution Pb(II) thieno[2 3-b]thiophene benzo[d]thiazole-2-thio unit |
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