Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-05-22

Journal: TETRAHEDRON LETTERS

Included Journals: Scopus、SCIE

Volume: 54

Issue: 21

Page Number: 2575-2578

ISSN: 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.