Anthraquinone derived oxalamide gelator 1 forms with aromatic solvents and alcohols very stable gels which selectively respond to the presence of fluoride anion by colour change and/or gel-to-sol transition.
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Intra- and intermolecular hydrogen bonds enhance the fluoride-responsiveness of functionalized glycolipid-based gelators.
J Mater Chem B
February 2013
Department of Chemistry, Chung Yuan Christian University, Chung Li 32023, Taiwan.
We propose a facile approach toward enhancing the efficiency of fluoride-responsive gels through the positioning of functionalized receptor units, allowing tunable intra- and intermolecular hydrogen bonding, in the gelator molecules. We prepared the new glycolipid-based gelator 2 and its hydroxy and methoxy derivatives 2a and 2b, respectively, to study the effects of three types modes of supramolecular assembly: solely intermolecular hydrogen bonding in 2, solely intramolecular hydrogen bonding in 2b, and both inter- and intramolecular hydrogen bonding in 2a. H NMR spectra confirmed the self-assembly interactions of these glycolipid-based gelators.
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Mater Sci Eng C Mater Biol Appl
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College of Science, Hebei University of Engineering, 199 South street of Guangming, Handan 056038, China.
In this paper, a new p-nitrophenylhydrozine-based anion receptor 1 containing cholesterol group had been designed and synthesized. It could selectively recognize fluoride among different anions tested with color changes from pale yellow to red for visual detection. Simultaneously, it could gel in cyclohexane, and the gel was also fluoride-responsive.
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State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Avenue, Changchun 130012, P.R. China.
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View Article and Find Full Text PDFFluoride-responsive organogelator based on oxalamide-derived anthraquinone.
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Department of Organic Chemistry and Biochemistry, Ruder Bosković Institute, Bijenicka 54, 10000, Zagreb, Croatia.
Anthraquinone derived oxalamide gelator 1 forms with aromatic solvents and alcohols very stable gels which selectively respond to the presence of fluoride anion by colour change and/or gel-to-sol transition.
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