Azo dyes featuring a pyrene unit: New selective chromogenic and fluorogenic chemodosimeters for Hg(II) |
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| Authors: | Chang-Chiang Zhong-Shin Chen-Yu Chiung-Cheng Chi-Rei Yao-Pin |
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| Affiliation: | aDepartment of Applied Chemistry, Providence University, 200 Chungchi Road, Sha-Lu, Taichung Hsien 433, Taiwan;bDivision of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan |
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| Abstract: | Three new chemodosimeters 1–3 were prepared, and their chromogenic and fluorogenic behaviors toward various metal cations were investigated. Receptors 1–3 show exclusive response toward Hg2+ ion and also distinguish Hg2+from other metal cations by different color changes in DMSO aqueous solution (DMSO/H2O = 9/1). Among them, receptor 1 also exhibits a pronounced Hg2+-induced fluorescence enhancement. Thus, the receptor 1 can be used as a colorimetric and fluorescent chemodosimeter for the determination of Hg2+ ion. The use of the test strip of the receptor 1 to detect Hg2+ was also reported. |
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| Keywords: | Chromogenic sensor Fluorogenic sensor Chemodosimeters Mercury ion Azo dyes Pyrene |
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