Anion influenced self-assembly of stilbazolium derivative and acid-sensitive property of its corresponding gel |
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Authors: | Jun Hou Yuan-Jie Li |
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Institution: | 1. Key Laboratory of Natural Resources of Changbai Mountain &2. Functional Molecules, Yanbian University, Ministry of Education Yanji , Gongyuan Road 977#, Yanji City , Jilin Province , 133002 , P.R. China |
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Abstract: | Two stilbazolium derivatives with different counter-anions (Br? and OH? ) have been designed and synthesised. Different counter-anions cause different aggregation properties. The reason of this difference was investigated through concentration- and temperature-dependent 1H NMR and IR spectra. When the counter-anion is OH? , the stilbazolium derivative exhibits pronounced aggregation properties. The scanning electron microscope images of xerogels show the characteristic gelation morphologies of 3D fibrous network structures. X-ray diffraction and fluorescence spectroscopy studies have been carried out, and provide more information to define the molecular packing model in gelation states. Finally, the acid-sensing abilities of the xerogel film were studied. |
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Keywords: | gels pyridinium counter-anion acid sensitivity |
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