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Cucurbituril-based supramolecular host-guest complexes: single-crystal structures and dual-state fluorescence enhancement.

ABSTRACT: Two supramolecular complexes were prepared using cucurbiturils [CBs] as mediators and a four-armed p-xylene derivative (M1) as a guest molecule. The single crystals of these two complexes were obtained and successfully analyzed by single-crystal X-ray diffraction (SCXRD). An unexpected and intriguing 1 : 2 self-assembly arrangement between M1 and CB[8] was notably uncovered, marking its first observation. These host-guest complexes exhibit distinctive photophysical properties, especially emission behaviors. Invaluable insights can be derived from these single-crystal structures. The precious single-crystal structures provide both precise structural information regarding the supramolecular complexes and a deeper understanding of the intricate mechanisms governing their photophysical properties.

SUBMITTER: Wang H

PROVIDER: S-EPMC10762720 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Cucurbituril-based supramolecular host-guest complexes: single-crystal structures and dual-state fluorescence enhancement.

Wang Hui H Liu Hui H Wang Mingsen M Hou Jiaheng J Li Yongjun Y Wang Yuancheng Y Zhao Yingjie Y

Chemical science 20231205 2

Two supramolecular complexes were prepared using cucurbiturils [CBs] as mediators and a four-armed <i>p</i>-xylene derivative (M1) as a guest molecule. The single crystals of these two complexes were obtained and successfully analyzed by single-crystal X-ray diffraction (SCXRD). An unexpected and intriguing 1 : 2 self-assembly arrangement between M1 and CB[8] was notably uncovered, marking its first observation. These host-guest complexes exhibit distinctive photophysical properties, especially ...[more]

PMID: 38179534

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