Abstract

The intramolecular mobility of the decaammonium pillar[5]arene salt with encapsulated thioctic acid in an aqueous solution have been characterized by NMR spectroscopy. Demonstrated that aromatic protons of pillar[5]arene can be utilized to characterize hydroquinone units rotation through the macrocyclic annulus. Using a pulse sequence of CPMG (Carr-Purcell-Meiboom-Gill) the chemical exchange rate constant of the hydroquinone units rotation through the macrocyclic annulus have been measured.

中文翻译：

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Carr-purcell-meiboom-gill 脉冲序列在硫辛酸配合物中测定柱[5]芳烃分子内迁移率的应用

摘要

十铵柱[5]芳烃盐与包封的硫辛酸在水溶液中的分子内迁移率已通过核磁共振光谱进行了表征。证明柱[5]芳烃的芳香质子可用于表征氢醌单元通过大环环的旋转。使用 CPMG (Carr-Purcell-Meiboom-Gill) 的脉冲序列测量了氢醌单元旋转通过大环环的化学交换速率常数。