Highly selective colorimetric fluorescence sensor for Cu2+: cation-induced 'switching on' of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

被引：71

作者：

Goswami, Shyamaprosad ^{[1
]}

Sen, Debabrata ^{[1
]}

Das, Nirmal Kumar ^{[1
]}

Hazra, Giridhari ^{[1
]}

机构：

[1] Bengal Engn & Sci Univ, Dept Chem, Sibpur 711103, Howrah, India

来源：

TETRAHEDRON LETTERS | 2010年 / 51卷 / 42期

关键词：

ENHANCED FLUORESCENCE; RED-SHIFT; CHEMOSENSOR; COPPER; FLUOROPHORE; DESIGN; CU(II); PROBES; IONS; ACID;

D O I：

10.1016/j.tetlet.2010.08.048

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A 1,8-naphthalimide-based colorimetric fluorescence perinone dye, receptor 1 is reported herein for the selective detection of Cu2+ over the other heavy and transition metal ions. Receptor 1 shows a strong colorimetric change from orange to purple and a dramatic enhancement of fluorescence intensity due to cation-induced excited state internal charge transfer during the sensing event, that is, a dual optical response that would facilitate naked-eye detection of Cu2+. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：5563 / 5566

页数：4

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