Abstract：
Synthesis of novel benzophenone-based chemosensor is presented for the selective sensing of Sn2+ ion. Screening of competitive metal ions was performed by competitive experiments. The specific cation recognition ability of chemosensor towards Sn2+ was investigated by experimental (UV-visible, fluorescence spectroscopy, 1H NMR, 13C NMR, FTIR and HRMS) methods and further supported by Density Functional Theory study. The stoichiometric binding ratio and binding constant (Ka) for complex is found to be 1:1 and 1.50×104, respectively. The detection limit of Sn2+ towards chemosensor was found to be 0.3898ppb. Specific selectivity and superiority of chemosensor over another recently reported chemosensor is presented.
摘要：
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