Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-02-27

Journal: TETRAHEDRON

Included Journals: Scopus、SCIE

Volume: 66

Issue: 9

Page Number: 1678-1683

ISSN: 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