Synthesis, characterization, and nonlinear optical properties of some new series of S-(5-aryl-1,3,4-oxadiazol-2-yl) 2-chloroethanethioate derivatives

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2019
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Abstract
In the present investigation, some novel S-(5-aryl-1,3,4-oxadiazol-2-yl)2-chloroethanethioate (3a–3e) derivatives were synthesized and their impact on optical properties was studied. They have also been characterized by elemental analysis and various spectroscopic methods including FTIR, 1 H NMR, 13 C NMR, and UV-Vis techniques. The nonlinear refractive indexes of 3a–3e were also measured in dichloromethane via Z-scan method using a continuous wave diode-pumped laser at 532 nm wavelength. The nonlinear refractive coefficient of compounds was obtained from 1011 m2/W order. Regarding the appropriate nonlinearity of these compounds, they could be considered good candidates for biooptical and photonic applications. All the synthesized compounds (3a–3e) have also been evaluated for their antimicrobial and antifungal activities. The bioactive assay showed that the synthetic compounds displayed variable inhibition zones against tested bacterium Escherichia coli and fungus Aspergillus fumigatus in comparison to enrofloxacin and amphotericin as reference drugs, which are normally used for treating such infections.
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Authors Zahra Dono GHEZELBASH;Hamideh MOTIEI;Miri MAHMOODY;Karim Akbari DILMAGHANI;
Journal turkish journal of chemistry
Year 2019
DOI
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URL
http://dergipark.org.tr/download/article-file/739355
Keywords
synthesis 3 S-(5-aryl-1 4-oxadiazol-2-yl)2-chloroethanethioate nonlinear optics Z-scan technique diodepumped laser Langmuir–Blodgett nanobiosensor nanolithography close-packed silica colloids porous film biodetection

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