Rhodamine urea derivatives as fluorescent chemosensors for Hg2+

Jung Hyun Soh; K. M.K. Swamy; Sook Kyung Kim; Suki Kim; Sang Hyeup Lee; Juyoung Yoon

doi:10.1016/j.tetlet.2007.06.114

Rhodamine urea derivatives as fluorescent chemosensors for Hg²⁺

Jung Hyun Soh, K. M.K. Swamy, Sook Kyung Kim, Suki Kim, Sang Hyeup Lee, Juyoung Yoon

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

209 Scopus citations

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.

Original language	English
Pages (from-to)	5966-5969
Number of pages	4
Journal	Tetrahedron Letters
Volume	48
Issue number	34
DOIs	https://doi.org/10.1016/j.tetlet.2007.06.114
State	Published - 20 Aug 2007

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant (KRF-R14-2003-014-01001-0, KRF-2004-005-C00093) and the Korea Ministry of Environment as “The Eco-technopia 21 project”. K.M.K.S. is thankful to KOFST for Brain Pool Fellowship.

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10.1016/j.tetlet.2007.06.114

Cite this

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title = "Rhodamine urea derivatives as fluorescent chemosensors for Hg2+",

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.",

author = "Soh, {Jung Hyun} and Swamy, {K. M.K.} and Kim, {Sook Kyung} and Suki Kim and Lee, {Sang Hyeup} and Juyoung Yoon",

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AU - Soh, Jung Hyun

AU - Swamy, K. M.K.

AU - Kim, Sook Kyung

AU - Kim, Suki

AU - Lee, Sang Hyeup

AU - Yoon, Juyoung

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PY - 2007/8/20

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AB - 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.

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