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合成了一种新的荧光化学敏感器——二甲氨基查尔酮修饰β-环糊精衍生物。对化合物的光谱光物理行为及其分子识别作用进行了研究。结果表明,该化合物的发光行为强烈地依赖于查尔酮所处环境的极性,它在水溶液中因强烈的自包结而呈现强荧光,但当与外来物种如1-金刚烷酸和莰酮相结合导致查尔酮被逐出CD空腔,引起荧光减弱。线状客体分子易插入CD内腔,并与“自包结”化合物形成所谓的“三元”包结配合物,从而给一种新的主客体识别模式形成提供了机会。
Synthesis of a new fluorescent chemical sensor - dimethylamino-chalcone modified β-cyclodextrin derivatives. The spectral photophysical behavior and molecular recognition of the compounds were studied. The results showed that the luminescence behavior of this compound strongly depends on the polarity of the environment in which Chalcone is present. It shows strong fluorescence in aqueous solution due to strong self-enciphering. However, The combination of ketones causes chalcone to be driven out of the CD cavity, causing fluorescence to weaken. Linear guest molecules are easily inserted into the CD lumen and form so-called “ternary” inclusion complexes with “self-contained” compounds, thus providing a new opportunity for guest-host recognition pattern formation.