Synthesis and molecular recognition properties of a novel chemical modified β-cyclodextrin

• 作 者: 解宏智 汪鹏飞 吴世康
• 机 构: Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, China,Institute of
• 出 处: Progress in Natural Science
• 发表日期: 2000年01期
• 关键词: chalcone dimethylamino moiety inserted guest inclusion cationic ternary linking

A new fluorescent chemosensor, a kind of β-cyclodextrin (CD) modified with N’ N-dimethylamino-chalcone, was synthesized. The photophysical behavior and the molecular recognition of this compound were investigated by fluorescence spectroscopy. The results show that there exists an “in-out” movement of appended chalcone group from cyclodextrin cavity for “large dimension guest molecule such as 1-adamantanecarboxylic acid. But the long-chained guests such as cationic surfactants can be inserted into the CD cavity as a spacer to form a ternary inclusion complex with the CD cavity and the chalcone moiety.

A new fluorescent chemosensor, a kind of β-cyclodextrin (CD) modified with N ’N-dimethylamino-chalcone, was synthesized. The photophysical behavior and the molecular recognition of this compound were investigated by fluorescence spectroscopy. The results show that there exists an ”in-out “ movement of an appended chalcone group from cyclodextrin cavity for ”large dimension guest molecule such as 1-adamantanecarboxylic acid. But the long-chained guests such as cationic surfactants can be inserted into the CD cavity as a spacer to form a ternary inclusion complex with the CD cavity and the chalcone moiety.