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Indexed by:期刊论文

Date of Publication:2013-05-22

Journal:TETRAHEDRON LETTERS

Included Journals:SCIE、Scopus

Volume:54

Issue:21

Page Number:2575-2578

ISSN No.:0040-4039

Key Words:Fluorescent viscosity sensors; Photoinduced electron transfer; 4-Aminonaphthalimide; Exciplex formation

Abstract:To establish a new strategy for the development of fluorescent viscosity sensors by the principle of photoinduced electron transfer, three 4-aminonaphthalimide based D-(CH2)(2)-A molecules were designed and synthesized. The effects of solvent polarity and viscosity on the fluorescence spectra of these compounds were investigated. These compounds exhibit viscosity-sensitive fluorescence spectra in ethylene glycol-glycerol mixtures. A mechanism about exciplex formation was proposed to explain their viscosity sensitivity. (C) 2013 Elsevier Ltd. All rights reserved.