A highly selective fluorescent chemosensor for lead ions |
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| Authors: | Chen Chao-Tsen Huang Wan-Pei |
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| Affiliation: | Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, ROC. ctchen@mail.ch.ntu.edu.tw |
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| Abstract: | A simple fluorescent chemosensor 1 exhibits a 40-fold fluorescence enhancement upon addition of lead ion and yet is insensitive to most of univalent and divalent metal ions. The high affinity of 1 toward Pb2+ presumably results from the cooperative binding behaviors of two potential metal binding sites: the dicarbonyl and the 15-monoazacrown-5 ether. |
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