Photolysis Behaviors of Anthryl Derivative Aggregation Mediated by Sulfato‐β‐Cyclodextrin

Abstract

A photo‐responsive supramolecular assembly was prepared using sulfato‐β‐cyclodextrin (SCD) as the macrocyclic host and pyridinium‐modified anthracene (Anpy) as the guest molecule, and its assembly and photolysis behaviors were fully investigated by mass spectrometry, UV‐vis, dynamic light scattering, scanning electron microscopy, transmission electronic microscopy, Fourier transform infrared spectroscopy and powder X‐ray diffraction, etc. Without SCD, the disruption of polycyclic aromatic structure in Anpy was relatively slow via a photo‐oxidation reaction under UV irradiation at 365 nm. Interestingly, the photo‐oxidation rate significantly increased 5.2 times after the supramolecular assembly of Anpy with SCD. This result will provide a supramolecular method for the efficient elimination of polycyclic aromatic hydrocarbons.

Supramolecular Assemblies of Multi-Charged Cyclodextrins

“…例如, 利用磺化环糊精和两亲性蒽衍生物通过静电 作用构筑光响应降解的超分子组装体 [33] , 该组装体提 供的疏水环境有利于蒽环的进一步堆积, 从而在光照条 件下产生单线态氧, 加速蒽衍生物的光降解速率. 本工 作为利用超分子策略构筑多环芳烃的光解体系以及光 敏材料体系提供了思路.…”