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A dipyrenyl calixazacrown chemosensor for Mg2+
- Authors
- Hamdi, Abdelwaheb; Kim, Sang Hoon; Abidi, Rym; Thuery, Pierre; Kim, Jong Seung; Vicens, Jacques
- Issue Date
- 4-Apr-2009
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Calixarenes; Fluorescence; Detection; Complexation; Excimer; Magnesium
- Citation
- TETRAHEDRON, v.65, no.14, pp.2818 - 2823
- Indexed
- SCIE
SCOPUS
- Journal Title
- TETRAHEDRON
- Volume
- 65
- Number
- 14
- Start Page
- 2818
- End Page
- 2823
- ISSN
- 0040-4020
- Abstract
- A new fluorogenic calix[4]tetraaza-crown-6 (4) bearing two pyrene amide groups has been prepared. It was shown to be selective for Mg2+. When Mg2+ is bound to 4, the pyrene monomer emission increased while the excimer emission declined in a ratiometric manner. It is shown by H-1 NMR that this ratiometric change is due to the conformational changes of the pyrenes during the chelation of Mg2+ by the amide functions to form a 1:1 complex. (C) 2009 Elsevier Ltd. All rights reserved.
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Related Researcher
- Kim, Jong Seung
- College of Science (Department of Chemistry)