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Ratiometric fluorescent and colorimetric sensors for Cu2+ based on 4,5-disubstituted-1,8-naphthalimide and sensing cyanide via Cu2+ displacement approach

Title
Ratiometric fluorescent and colorimetric sensors for Cu2+ based on 4,5-disubstituted-1,8-naphthalimide and sensing cyanide via Cu2+ displacement approach
Authors
Xu Z.Pan J.Spring D.R.Cui J.Yoon J.
Ewha Authors
윤주영
SCOPUS Author ID
윤주영scopus
Issue Date
2010
Journal Title
Tetrahedron
ISSN
0040-4020JCR Link
Citation
vol. 66, no. 9, pp. 1678 - 1683
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Two 4,5-disubstituted-1,8-naphthalimide derivatives 1 and 2 were synthesized as ratiometric fluorescent and colorimetric sensors for Cu2+, respectively. In 100% aqueous solutions of 1, the presence of Cu2+ induces a strong and increasing fluorescent emission centered at 478 nm at the expense of the fluorescent emission of 1 centered at 534 nm. Compound 2 senses Cu2+ by means of a colorimetric (primrose yellow to pink) method with a thorough quench in emission attributed to the deprotonation of the secondary amine conjugated to the naphthalimide fluorophore. 1-Cu2+ and 2-Cu2+ sense cyanide in ratiometric way via colorimetric and fluorescent changes. © 2010 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.tet.2010.01.008
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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