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  • Title: 1, 5-Bis (2-hydroxyacetophenone)thiocarbohydrazone: a novel colorimetric and fluorescent dual-mode chemosensor for the recognition of fluoride.
    Author: Kumar SL, Kumar MS, John RP, Muthiah PT, Sreekanth A.
    Journal: Mater Sci Eng C Mater Biol Appl; 2013 Jul 01; 33(5):2519-25. PubMed ID: 23623063.
    Abstract:
    1,5-Bis (2-hydroxyacetophenone)thiocarbohydrazone (H4L) has been synthesized and characterized by means of spectroscopic and single crystal X-ray diffraction methods. Interactions of the H4L with a variety of anions were investigated using a combination of UV-visible and fluorescence spectroscopic methods in a biological competing solvent DMSO. The H4L has a high degree of selectivity for fluoride over other anions. (1)H NMR titration experiments indicate that a deprotonation process is involved in the chemo sensing process.
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