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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

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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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Keywords: ABSORPTION; CHARGE TRANSFER SYSTEM; COLORIMETRIC; D-PI-A; DYE CHEMOSENSOR; FLUORESCENCE; METAL IONS

Document Type: Research Article

Publication date: 2012-02-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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