Single chemosensor for sensing multiple analytes: Selective fluorogenic detection of Cu2+ and Br−

Yoon Gun Ko; Mayank; Narinder Singh; Doo Ok Jang

doi:10.1016/j.tetlet.2018.09.024

Single chemosensor for sensing multiple analytes: Selective fluorogenic detection of Cu²⁺ and Br⁻

Yoon Gun Ko, Mayank, Narinder Singh, Doo Ok Jang

Chemistry and Medical Chemistry

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

A tripodal receptor R1 with a combination of nitrogen and oxygen-based binding sites was designed and used for the selective determination of Cu²⁺. The fluorescence emission profile of R1 in the presence of Cu²⁺ showed a marked enhancement in fluorescence intensity, indicating high selectivity among other metal ions. The R1–Cu²⁺ complex was further explored as a sensor for anion detection. Upon addition of Br⁻, switching to a fluorescence “off” state was observed. The Br⁻ selectivity of the complex over a wide range of concentrations was observed via titrimetric analysis through changes in the emission spectra.

Original language	English
Pages (from-to)	3839-3844
Number of pages	6
Journal	Tetrahedron Letters
Volume	59
Issue number	43
DOIs	https://doi.org/10.1016/j.tetlet.2018.09.024
Publication status	Published - 2018 Oct 24

All Science Journal Classification (ASJC) codes

Biochemistry
Drug Discovery
Organic Chemistry

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Ko, Y. G., Mayank, Singh, N., & Jang, D. O. (2018). Single chemosensor for sensing multiple analytes: Selective fluorogenic detection of Cu²⁺ and Br⁻. Tetrahedron Letters, 59(43), 3839-3844. https://doi.org/10.1016/j.tetlet.2018.09.024

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abstract = "A tripodal receptor R1 with a combination of nitrogen and oxygen-based binding sites was designed and used for the selective determination of Cu2+. The fluorescence emission profile of R1 in the presence of Cu2+ showed a marked enhancement in fluorescence intensity, indicating high selectivity among other metal ions. The R1–Cu2+ complex was further explored as a sensor for anion detection. Upon addition of Br−, switching to a fluorescence “off” state was observed. The Br− selectivity of the complex over a wide range of concentrations was observed via titrimetric analysis through changes in the emission spectra.",

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AU - Ko, Yoon Gun

AU - Mayank,

AU - Singh, Narinder

AU - Jang, Doo Ok

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AB - A tripodal receptor R1 with a combination of nitrogen and oxygen-based binding sites was designed and used for the selective determination of Cu2+. The fluorescence emission profile of R1 in the presence of Cu2+ showed a marked enhancement in fluorescence intensity, indicating high selectivity among other metal ions. The R1–Cu2+ complex was further explored as a sensor for anion detection. Upon addition of Br−, switching to a fluorescence “off” state was observed. The Br− selectivity of the complex over a wide range of concentrations was observed via titrimetric analysis through changes in the emission spectra.

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