Ratiometric sensing of Hg2+ based on the calix[4]arene of partial cone conformation possessing a dansyl moiety |
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Authors: | Dhir Abhimanew Bhalla Vandana Kumar Manoj |
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Institution: | Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab-143005, India. |
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Abstract: | A new fluorescent chemosensor based on the calix4]arene of partial cone conformation possessing a dansyl moiety has been synthesized. The chemosensor demonstrates selective optical recognition of Hg(2+) and Cu(2+) in two contrasting modes. The receptor exhibited ratiometric sensing of Hg(2+) and "ON-OFF" type of fluorescence behavior in the presence of Cu(2+). The compound behaves as a fluorescent molecular switch upon chemical inputs of Hg(2+) and Cu(2+) ions. |
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