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Indexed by:期刊论文

Date of Publication:2010-02-27

Journal:TETRAHEDRON

Included Journals:SCIE、Scopus

Volume:66

Issue:9

Page Number:1678-1683

ISSN No.:0040-4020

Key Words:Ratiometric; Fluorescent; Colorimetric; Cu2+; Naphthalimide; Cyanide

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 rim 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 (C) 2010 Elsevier Ltd All rights reserved