Colorimetric probes based on organic azo dyes for selective sensing of fluoride and cyanide ions
عنوان مقاله: Colorimetric probes based on organic azo dyes for selective sensing of fluoride and cyanide ions
شناسه ملی مقاله: ICCC06_059
منتشر شده در ششمین کنگره بین المللی رنگ و پوشش در سال 1394
شناسه ملی مقاله: ICCC06_059
منتشر شده در ششمین کنگره بین المللی رنگ و پوشش در سال 1394
مشخصات نویسندگان مقاله:
A. Mohammadi - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
Z. Dehghan - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
N. Chaibakhsh - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
خلاصه مقاله:
A. Mohammadi - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
Z. Dehghan - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
N. Chaibakhsh - Department of Chemistry, Faculty of Sciences, University of Guilan, P.O. Box: 41335-1914, Rasht, Iran
Two novel azo dye-based probes were designed and synthesized for selective inorganic ions sensing. Chemical structure of the synthesized dyes was characterized by spectroscopic techniques. In contrast to electron donating groups (EDGs), the introduction of electron withdrawing groups (EWGs) into the backbone of the probe makes the excellent sensitivity for fluoride and cyanide ions. Interaction of the prepared probes with Fˉ and CNˉ in contrast to other anions provides remarkable colorimetric responses from yellow to blue (180 nm), enabling naked-eye sensing without any spectroscopic instrumentation. The mechanism of anion binding with probes showed one-to-one stoichiometry (Receptor: Anion) by Job’s plot.
کلمات کلیدی: Azo dye- Probe- Colorimetric sensor- Spectroscopy
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/423922/