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Yi Liu, Prof. Anjun Qin, Xiujuan Chen, Xiao Yuan Shen, Li Tong, Rongrong Hu, Prof. Jing Zhi Sun and Prof. Ben Zhong Tang Specific Recognition of β-Cyclodextrin by a Tetraphenylethene Luminogen through a Cooperative Boronic Acid/Diol Interaction Chemistry - A European Journal 17

Article first published online: 1 DEC 2011 | DOI: 10.1002/chem.201102613

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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).

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