Fluorescence sensing of Cu and Hg by a dipyrene ligand involving an excimer-switch off mechanism |
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| Authors: | Vadapalli Chandrasekhar Mrituanjay D Pandey |
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| Institution: | Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India |
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| Abstract: | A novel dipyrene ligand 1 has been designed which shows intramolecular excimer formation in solution. Its specific interaction with Cu2+ or Hg2+ leads to the disruption of the excimer and results in a fluorescence-mediated sensing of these ions in a mixed organic-aqueous solution. Apart from steady-state studies, time-resolved fluorescence measurements also reveal that excimer-switch off caused by metal ion coordination leads to the selective detection of these ions. |
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| Keywords: | Pyrene Fluorescence Metal ion sensor Fluorescence life-time |
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