Abstract
A simple tailor-made amidic functionality based on 1,10-phenanthroline unit (1) gave differential absorption changes with only metal ions viz. Cd2+, Zn2+, and Cu2+ ions. In CH3CN solution of 1, addition of Cd2+ and Zn2+ ions resulted in bathochromic shift of ∼65nm, whereas Cu2+ ions resulted in hyperchromic effect with only ∼15nm bathochromic shift. These differential changes observed with Cd2+ and Cu2+ ions addition enabled chemosensor 1 to construct ‘IMLICATION’ and ‘TRANSFER’ logic gates. The observed binding constant values were found to be in order of Cd2+>Zn2+>Cu2+.
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