Journal
TETRAHEDRON LETTERS
Volume 48, Issue 34, Pages 5966-5969Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.06.114
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Funding
- Korea Environmental Industry & Technology Institute (KEITI) [20061000200480] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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New rhodamine derivatives bearing urea group have been synthesized for the detection of metal ions. Especially, the dimeric system 2 displayed a selective fluorescent enhancement and colorimetric change upon the addition of Hg2+, in which the spirolactam (nonfluorescent) to ring opened amide (fluorescent) process was utilized. The association constant of 2 with Hg2+ was calculated as 3.2 x 10(5) M-1. (c) 2007 Elsevier Ltd. All rights reserved.
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