Journal
TETRAHEDRON LETTERS
Volume 53, Issue 44, Pages 5848-5851Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.08.058
Keywords
Chemosensor; Schiff base; Fluorescence; Turn-on
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Funding
- National Science Council of Taiwan
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A simple Schiff base type fluorescent receptor 1 was prepared and evaluated for its fluorescence response to heavy metal ions. Receptor 1 exhibits an 'off-on-type' mode with high selectivity in the presence of Zn2+ ion. The selectivity of 1 for Zn2+ is the consequence of combined effects of chelation-enhanced fluorescence (CHEF), C=N isomerization, and inhibition of photoinduced electron transfer (PET). Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
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