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Issue 4, 2013
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Thiacalix[4]crown based optical chemosensor for Fe3+, Li+ and cysteine: a Fe3+/Li+ ion synchronized allosteric regulation

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Abstract

A heteroditopic chemosensor 2 based on a thiacalix[4]crown with a 1,3-alternate conformation has been synthesized and shows a selective fluorescence turn-off response with Fe3+ ions in mixed aqueous media. Furthermore, the 2–Fe3+ complex can be used as a chemosensing system for the detection of Li+ and cysteine based on two different approaches. Moreover, the sequence addition of Fe3+ and Li+ triggers an Fe3+/Li+ switchable on-off-on fluorescence chemosensor with negative allosteric regulations.

Graphical abstract: Thiacalix[4]crown based optical chemosensor for Fe3+, Li+ and cysteine: a Fe3+/Li+ ion synchronized allosteric regulation

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Publication details

The article was received on 24 Aug 2012, accepted on 21 Sep 2012 and first published on 21 Sep 2012


Article type: Paper
DOI: 10.1039/C2DT31940C
Citation: Dalton Trans., 2013,42, 981-986
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    Thiacalix[4]crown based optical chemosensor for Fe3+, Li+ and cysteine: a Fe3+/Li+ ion synchronized allosteric regulation

    M. Kumar, N. Kumar and V. Bhalla, Dalton Trans., 2013, 42, 981
    DOI: 10.1039/C2DT31940C

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