A Colorimetric and Fluorescent Chemosensor for Ni2+ Based on Donor-π-Acceptor Charge Transfer Dye Containing 2-Cyanomethylene-3-Cyano-4,5,5-Trimethyl-2,5-Dihydrofuran Acceptor and 4-Bis(pyridin-2-ylmethyl)Aminobenzene Donor
A new designed colorimetric and fluorescent dye chemosensor was synthesized, characterized and computationally calculated using MO theory calculation, which was based on donor-π-acceptor electron charge transfer system. This particularly designed dye chemosensor displayed the selective Ni2+ ion chemo-sensing effects in optical properties with absorption and fluorescence emission. This dye chemosensor represented clear absorption spectra changes with Ni2+ ion and the dramatic fluorescence quenching effect with Ni2+ ion was determined. However it showed no significant optical spectra changes upon the addition of other metal ions such as Cd2+, Na2+, Mg2+, Pb2+, Fe2+, Fe3+, Ca2+, Cu2+, Hg2+, except Zn2+.
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Document Type: Research Article
Publication date: 2012-02-01
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