Rhodamine urea derivatives as fluorescent chemosensors for Hg2+

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Title
Rhodamine urea derivatives as fluorescent chemosensors for Hg2+
Author(s)
J H Soh; K M K Swamy; S K Kim; S Kim; Sang-Hyeup Lee; J Yoon
Bibliographic Citation
Tetrahedron Letters, vol. 48, no. 34, pp. 5966-5969
Publication Year
2007
Abstract
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 × 105 M-1.
ISSN
0040-4039
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.tetlet.2007.06.114
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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