Dual-mode unsymmetrical squaraine-based sensor for selective detection of Hg2+ in aqueous media - Details

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Abstract：

A　novel　chemosensor　based　on　unsymmetrical　squaraine　dye　(USQ-1)　for　the　selective　detection　of　Hg2+　in　aqueous　media　is　described.　USQ-1　in　combination　with　metal　ions　shows　dual　chromogenic　and　＇turn-on＇　fluorogenic　response　selectivity　toward　Hg2+　as　compared　to　Li　+,　Na+,　K+,　Mg2+,　Ca2+,　Ba2+,　Al3+,　Cu2+,　Cd2+,　Mn　2+,　Fe3+,　Ag+,　Pb2+,　Zn　2+,　Ni2+　and　Co2+　due　to　the　Hg　2+-induced　deaggregation　of　the　dye　molecule.　A　recognition　mechanism　based　on　the　binding　mode　is　proposed　based　on　the　absorption　and　fluorescence　changes,　1H　NMR　titration　experiments,　ESI-MS　study,　and　theoretical　calculations.　©　The　Royal　Society　of　Chemistry　2011.

Keyword：

Binding energy Metal ions Metals Steel beams and girders Titration

Community：

[ 1 ] [Chen, Cheng]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 2 ] [Dong, Haijun]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 3 ] [Chen, Yaqing]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 4 ] [Guo, Liangqia]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 5 ] [Wang, Zhenyu]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 6 ] [Sun, Jian-Jun]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China
[ 7 ] [Fu, Nanyan]Department of Chemistry, Fuzhou University, Ministry of Education, Fuzhou 350108, China

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nanyan_fu@fzu.edu.cn

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Source ：

Organic and Biomolecular Chemistry

ISSN： 1477-0520

Year： 2011

Issue： 23

Volume： 9

Page： 8195-8201

3 . 6 9 6

JCR@2011

2 . 9 0 0

JCR@2023

JCR Journal Grade：1

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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