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Highly sensitive and selective chemosensor for Hg2+ based on the rhodamine fluorophore
- Issue Date
- Jun-2007
- Publisher
- American Chemical Society
- Citation
- Organic Letters, v.9, no.13, pp 2501 - 2504
- Pages
- 4
- Journal Title
- Organic Letters
- Volume
- 9
- Number
- 13
- Start Page
- 2501
- End Page
- 2504
- ISSN
- 1523-7060
1523-7052
- Abstract
- A novel tren-based tripodal chemosentor 1 bearing a rhodamine and two tosyl groups was synthasized and its sensing behavior toward metal ions was investigated by UV/vis and fluorescence spectroscopies. Addition of a Hg 2+ ion to a CH3CN solution of 1 gave a visual color change as well as significantly enhanced fluorescence, while other ions including Pb2+, Zn2+, Cu2+, Ca2+, Ba 2+, Cd2+, Co2+, Mg2+, Ag +, Cs+, Li+, and Na+ induced no or much smaller color/spectral changes, which constituted a Hg2+- selective fluorescent chemosensor (OFF-ON). ？ 2007 American Chemical Society.
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