title: Ratiometric sensing of Hg2+ based on the calix[4]arene of partial cone conformation possessing a dansyl moiety.
abstract: A new fluorescent chemosensor based on the calix[4]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.
authors.affiliation: Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab-143005, India.
authors.forename: Abhimanew
authors.initials: A
authors.lastname: Dhir
authors.forename: Vandana
authors.initials: V
authors.lastname: Bhalla
authors.forename: Manoj
authors.initials: M
authors.lastname: Kumar