A 2-mercaptobenzimidazole-based emissive Cu(I) complex for selective determination of iodide with large Stokes shift

Amanpreet Singh; Ajnesh Singh; Narinder Singh; Doo Ok Jang

doi:10.1016/j.snb.2016.11.157

A 2-mercaptobenzimidazole-based emissive Cu(I) complex for selective determination of iodide with large Stokes shift

Amanpreet Singh, Ajnesh Singh, Narinder Singh, Doo Ok Jang

Chemistry and Medical Chemistry

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

23 Citations (Scopus)

Abstract

A Cu(I) complex of 2-mercaptobenzimidazole (R1) was synthesized and characterized using single-crystal X-ray diffraction. Complex R1 showing strong emission at 598 nm serves as a sensor for iodide determination. Upon addition of iodide to a solution of complex R1, a reduction in emission intensity by aggregation-caused quenching (ACQ) was observed, with a large Stokes shift. The limit of detection (LOD) of complex R1 was estimated to be 14 ± 1.5 nM. Complex R1 proved to be reusable by extracting the iodide ions with silver nitrate. The advantages of using complex R1 as a sensor for iodide include low LOD and emission at long wavelengths, which eliminate the interference caused by short-wavelength emissive impurities.

Original language	English
Pages (from-to)	372-379
Number of pages	8
Journal	Sensors and Actuators, B: Chemical
Volume	243
DOIs	https://doi.org/10.1016/j.snb.2016.11.157
Publication status	Published - 2017 May 1

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2016.11.157

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title = "A 2-mercaptobenzimidazole-based emissive Cu(I) complex for selective determination of iodide with large Stokes shift",

abstract = "A Cu(I) complex of 2-mercaptobenzimidazole (R1) was synthesized and characterized using single-crystal X-ray diffraction. Complex R1 showing strong emission at 598 nm serves as a sensor for iodide determination. Upon addition of iodide to a solution of complex R1, a reduction in emission intensity by aggregation-caused quenching (ACQ) was observed, with a large Stokes shift. The limit of detection (LOD) of complex R1 was estimated to be 14 ± 1.5 nM. Complex R1 proved to be reusable by extracting the iodide ions with silver nitrate. The advantages of using complex R1 as a sensor for iodide include low LOD and emission at long wavelengths, which eliminate the interference caused by short-wavelength emissive impurities.",

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doi = "10.1016/j.snb.2016.11.157",

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T1 - A 2-mercaptobenzimidazole-based emissive Cu(I) complex for selective determination of iodide with large Stokes shift

AU - Singh, Amanpreet

AU - Singh, Ajnesh

AU - Singh, Narinder

AU - Jang, Doo Ok

PY - 2017/5/1

Y1 - 2017/5/1

N2 - A Cu(I) complex of 2-mercaptobenzimidazole (R1) was synthesized and characterized using single-crystal X-ray diffraction. Complex R1 showing strong emission at 598 nm serves as a sensor for iodide determination. Upon addition of iodide to a solution of complex R1, a reduction in emission intensity by aggregation-caused quenching (ACQ) was observed, with a large Stokes shift. The limit of detection (LOD) of complex R1 was estimated to be 14 ± 1.5 nM. Complex R1 proved to be reusable by extracting the iodide ions with silver nitrate. The advantages of using complex R1 as a sensor for iodide include low LOD and emission at long wavelengths, which eliminate the interference caused by short-wavelength emissive impurities.

AB - A Cu(I) complex of 2-mercaptobenzimidazole (R1) was synthesized and characterized using single-crystal X-ray diffraction. Complex R1 showing strong emission at 598 nm serves as a sensor for iodide determination. Upon addition of iodide to a solution of complex R1, a reduction in emission intensity by aggregation-caused quenching (ACQ) was observed, with a large Stokes shift. The limit of detection (LOD) of complex R1 was estimated to be 14 ± 1.5 nM. Complex R1 proved to be reusable by extracting the iodide ions with silver nitrate. The advantages of using complex R1 as a sensor for iodide include low LOD and emission at long wavelengths, which eliminate the interference caused by short-wavelength emissive impurities.

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JO - Sensors and Actuators B: Chemical

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A 2-mercaptobenzimidazole-based emissive Cu(I) complex for selective determination of iodide with large Stokes shift

Abstract

Bibliographical note

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