A highly selective quinoline-based fluorescent sensor for Zn(II)

Hyun Kim; Juhye Kang; Kyung Beom Kim; Eun Joo Song; Cheal Kim

doi:10.1016/j.saa.2013.09.118

A highly selective quinoline-based fluorescent sensor for Zn(II)

Hyun Kim
, Juhye Kang
, Kyung Beom Kim
, Eun Joo Song
, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

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

43 Scopus citations

Abstract

A quinoline-based simple receptor (bis(2-quinolinylmethyl)benzylamine = 1) as a Zn²⁺ selective fluorescent chemosensor showed a large fluorescent enhancement with a blue shift in the presence of Zn²⁺ which is attributed to a chelation enhanced fluorescence (CHEF) effect with inhibition of a photoinduced electron transfer (PET) process of 1. In particular, this receptor could clearly distinguish Zn²⁺ from Cd ²⁺. The binding mode of 1 and Zn²⁺ was found to be a 1:1 and confirmed by Job plot, ¹H NMR titration and ESI-mass spectrometry analysis.

Original language	English
Pages (from-to)	883-887
Number of pages	5
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	118
DOIs	https://doi.org/10.1016/j.saa.2013.09.118
State	Published - 2014

Keywords

Fluorescence enhancement
Fluorescent chemosensor
Quinoline
Zinc ion sensor

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10.1016/j.saa.2013.09.118

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title = "A highly selective quinoline-based fluorescent sensor for Zn(II)",

abstract = "A quinoline-based simple receptor (bis(2-quinolinylmethyl)benzylamine = 1) as a Zn2+ selective fluorescent chemosensor showed a large fluorescent enhancement with a blue shift in the presence of Zn2+ which is attributed to a chelation enhanced fluorescence (CHEF) effect with inhibition of a photoinduced electron transfer (PET) process of 1. In particular, this receptor could clearly distinguish Zn2+ from Cd 2+. The binding mode of 1 and Zn2+ was found to be a 1:1 and confirmed by Job plot, 1H NMR titration and ESI-mass spectrometry analysis.",

keywords = "Fluorescence enhancement, Fluorescent chemosensor, Quinoline, Zinc ion sensor",

author = "Hyun Kim and Juhye Kang and Kim, \{Kyung Beom\} and Song, \{Eun Joo\} and Cheal Kim",

year = "2014",

doi = "10.1016/j.saa.2013.09.118",

language = "English",

volume = "118",

pages = "883--887",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

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AU - Kim, Hyun

AU - Kang, Juhye

AU - Kim, Kyung Beom

AU - Song, Eun Joo

AU - Kim, Cheal

PY - 2014

Y1 - 2014

N2 - A quinoline-based simple receptor (bis(2-quinolinylmethyl)benzylamine = 1) as a Zn2+ selective fluorescent chemosensor showed a large fluorescent enhancement with a blue shift in the presence of Zn2+ which is attributed to a chelation enhanced fluorescence (CHEF) effect with inhibition of a photoinduced electron transfer (PET) process of 1. In particular, this receptor could clearly distinguish Zn2+ from Cd 2+. The binding mode of 1 and Zn2+ was found to be a 1:1 and confirmed by Job plot, 1H NMR titration and ESI-mass spectrometry analysis.

AB - A quinoline-based simple receptor (bis(2-quinolinylmethyl)benzylamine = 1) as a Zn2+ selective fluorescent chemosensor showed a large fluorescent enhancement with a blue shift in the presence of Zn2+ which is attributed to a chelation enhanced fluorescence (CHEF) effect with inhibition of a photoinduced electron transfer (PET) process of 1. In particular, this receptor could clearly distinguish Zn2+ from Cd 2+. The binding mode of 1 and Zn2+ was found to be a 1:1 and confirmed by Job plot, 1H NMR titration and ESI-mass spectrometry analysis.

KW - Fluorescence enhancement

KW - Fluorescent chemosensor

KW - Quinoline

KW - Zinc ion sensor

UR - https://www.scopus.com/pages/publications/84886148151

U2 - 10.1016/j.saa.2013.09.118

DO - 10.1016/j.saa.2013.09.118

M3 - Article

C2 - 24161851

AN - SCOPUS:84886148151

SN - 1386-1425

VL - 118

SP - 883

EP - 887

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ER -

A highly selective quinoline-based fluorescent sensor for Zn(II)

Abstract

Keywords

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