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Specific recognition of β-cyclodextrin by a tetraphenylethene luminogen through a cooperative boronic acid/diol interaction

机译:四苯基乙烯发光剂通过协同的硼酸/二醇相互作用特异性识别β-环糊精

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摘要

An unexpected recognition of β-cyclodextrin (CD) from α- and γ-CDs was achieved. The emission from a diboronic acid-containing tetraphenylethene (TPEDB) was amplified upon addition of β-CD, whereas there was almost no response for α-, and γ-CDs. TPEDB is proposed to be anchored onto the wide rim of β-CD through the alternative and conceptually new cooperative boronic acid/diol dynamic binding interaction, resulting in the restriction of intramolecular rotations of its phenyl rings (see scheme).
机译:从α-和γ-CD中意外地识别出β-环糊精(CD)。添加β-CD后,来自二硼酸四苯乙烯(TPEDB)的发射被放大,而α-和γ-CD几乎没有响应。有人建议将TPEDB通过替代的概念上新的协作性硼酸/二醇动态结合相互作用固定在β-CD的宽边上,从而限制其苯环的分子内旋转(请参阅方案)。

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