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- W2364240623 abstract "In this paper,a low molecular weight organic gelator(L)based on acyl hydrazone is designed and synthesized by using dimethyl 5-hydroxyisophthalate.The gelator is synthesized via etherification,hydrazinolysis and aldimine condensation reactions under mild reaction conditions with high yield and it is characterized by IR,1 HNMR and element analysis.The gelator shows excellent gelation ability in ethyl acetate,it can form stable organogels(OGL)in ethyl acetate via self-assemble with very low critical gelation concentrations. The self-assembly mechanism is investigated by concentration dependent1 HNMR,FT-IR and X-ray diffraction,these experiments indicate that the gelator L is self-assembled to supramolecular organogel OGL by the hydrogen bonds,π-πstacking,as well as the Van der Waals existing in the long alkyl chains.OGL shows specific selectivity for F-,other common anions can not lead to any similar response.After addition of solid TBAF,the colorless OGL gel changes to yellow sol.The anion response mechanisms of OGL are investigated by UV-vis spectral titration and 1 HNMR titration with F-.The phenomena indicate that with the addition of F-the hydrogen bonds is destroyed and N—H group might undergo a deprotonation process.These reasons lead to the colorless OGL gel changes to yellow sol.Therefore,OGL can act as a F-responsive smart material." @default.
- W2364240623 created "2016-06-24" @default.
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- W2364240623 date "2015-01-01" @default.
- W2364240623 modified "2023-09-28" @default.
- W2364240623 title "Synthesis of a low molecular weight organic gelator and its specific selectivity for sense F" @default.
- W2364240623 hasPublicationYear "2015" @default.
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