Hexamethylcucurbit[3,3]uril-Based Porous Supramolecular Assemblies and Their Adsorption Properties

Xin-Xin Wang; Fei-Yang Tian; Kai Chen; Yun-Qian Zhang; Zhu Tao; Qian-Jiang Zhu

doi:10.1021/acsomega.8b00979

Hexamethylcucurbit[3,3]uril-Based Porous Supramolecular Assemblies and Their Adsorption Properties

ACS Omega. 2018 Aug 23;3(8):9827-9833. doi: 10.1021/acsomega.8b00979. eCollection 2018 Aug 31.

Authors

Xin-Xin Wang¹, Fei-Yang Tian¹, Kai Chen², Yun-Qian Zhang¹, Zhu Tao¹, Qian-Jiang Zhu¹

Affiliations

¹ Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, People's Republic of China.
² Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, People's Republic of China.

Abstract

In the present work, we selected hexamethylcucurbit[3,3]uril (Me₆Q[3,3]) as a building block and obtained two Me₆Q[3,3]-based porous supramolecular assemblies from neutral water (A) and aqueous HCl solutions (B), respectively. Both Me₆Q[3,3]-based assemblies are constructed of Me₆Q[3,3] molecules through the typical outer surface interaction of cucurbit[n]urils, as well as hydrogen bonding between latticed water molecules and portal carbonyl oxygens of Me₆Q[3,3]. The assemblies present different porous structure features and exhibit different adsorption properties for eight common volatile organic compounds. However, the two porous assemblies exhibit similar adsorption properties for certain fluorophore dyes, including rhodamine B (G1), fluorescein (G2), and pyrene (G3), and form solid colored fluorescent compounds, some of which exhibit responses to the selected volatile organic compounds.