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A new gelator 1 based on tetraphenylethylene(TPE) and diphenylalanine was designed and synthesized.Compound 1 was non-emissive in solution,but its fluorescence turned on after the formation of gels,due to the aggregation-induced emission(AIE) feature of TPE.Interestingly,the fluorescence was reversibly switched “on-off” upon the “gel-sol” transition.Scanning electron microscope(SEM),confocal laser scanning microscope(CLSM) and X-ray diffraction(XRD) were employed to study the gels.
A new gelator 1 based on tetraphenylethylene (TPE) and diphenylalanine was designed and synthesized. Compound 1 was non-emissive in solution, but its fluorescence turned on after formation of gels, due to the aggregation-induced emission (AIE) feature of TPE .Interestingly, the fluorescence was reversibly switched “on-off ” upon the “gel-sol” transition. Scanning electron microscope (SEM), confocal laser scanning microscope (CLSM) and X-ray diffraction to study the gels.