A new dual-channel chemosensor based on chemodosimeter approach for detecting cyanide in aqueous solution: A combination of experimental and theoretical studies

Jae Jun Lee; Sun Young Lee; Kwon Hee Bok; Cheal Kim

doi:10.1007/s10895-015-1635-9

A new dual-channel chemosensor based on chemodosimeter approach for detecting cyanide in aqueous solution: A combination of experimental and theoretical studies

Jae Jun Lee, Sun Young Lee, Kwon Hee Bok, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

A new colorimetric and fluorescent receptor 1 for the detection of CN^- has been simply developed. Receptor 1 showed selectively colorimetric and fluorometric responses to CN^- in a near-perfect aqueous solution, respectively. This sensor displayed an obvious color change from yellow to colorless upon selective binding with CN^-. In addition, it could function as an "OFF-ON type" fluorescent response through a nucleophilic addition mechanism. The binding mode of receptor 1 with CN^- was proposed to be 1:1, based on Job plot, ¹H NMR titration and ESI-mass spectrometry analysis. Moreover, the sensing mechanism for CN^- was theoretically supported by DFT and TD-DFT calculations.

Original language	English
Pages (from-to)	1449-1459
Number of pages	11
Journal	Journal of Fluorescence
Volume	25
Issue number	5
DOIs	https://doi.org/10.1007/s10895-015-1635-9
State	Published - 1 Sep 2015

Keywords

Colorimetric
Cyanide
DFT calculations
Fluorescent

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10.1007/s10895-015-1635-9

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title = "A new dual-channel chemosensor based on chemodosimeter approach for detecting cyanide in aqueous solution: A combination of experimental and theoretical studies",

abstract = "A new colorimetric and fluorescent receptor 1 for the detection of CN- has been simply developed. Receptor 1 showed selectively colorimetric and fluorometric responses to CN- in a near-perfect aqueous solution, respectively. This sensor displayed an obvious color change from yellow to colorless upon selective binding with CN-. In addition, it could function as an {"}OFF-ON type{"} fluorescent response through a nucleophilic addition mechanism. The binding mode of receptor 1 with CN- was proposed to be 1:1, based on Job plot, 1H NMR titration and ESI-mass spectrometry analysis. Moreover, the sensing mechanism for CN- was theoretically supported by DFT and TD-DFT calculations.",

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AB - A new colorimetric and fluorescent receptor 1 for the detection of CN- has been simply developed. Receptor 1 showed selectively colorimetric and fluorometric responses to CN- in a near-perfect aqueous solution, respectively. This sensor displayed an obvious color change from yellow to colorless upon selective binding with CN-. In addition, it could function as an "OFF-ON type" fluorescent response through a nucleophilic addition mechanism. The binding mode of receptor 1 with CN- was proposed to be 1:1, based on Job plot, 1H NMR titration and ESI-mass spectrometry analysis. Moreover, the sensing mechanism for CN- was theoretically supported by DFT and TD-DFT calculations.

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A new dual-channel chemosensor based on chemodosimeter approach for detecting cyanide in aqueous solution: A combination of experimental and theoretical studies

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