摘要
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 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.
基金
supported by the National Natural Science Foundation of China (50973120,21021091)
the National Basic Research Program of China (2011CB808401)
Chinese Academy of Sciences
