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Study on the host-guest complex of dicyclohexanocucurbit[6]uril and 2-phenylbenzimidazole, and its recognition effect toward Fe³.

ABSTRACT: This paper has selected dicyclohexanocucurbit[6]uril (CyH₂Q[6]) as the host and 2-phenylbenzimidazole (G) as the guest to investigate the host-guest interaction mode between CyH₂Q[6] and G. Under acidic conditions, the complex was characterized using nuclear magnetic resonance, ultraviolet and fluorescence spectroscopy. The results show that the molecular ratio of CyH₂Q[6] to G is 2 : 1. The crystals were cultured with ZnCl₂ as a structural inducer under acidic conditions and single crystal X-ray diffraction showed that the molecular ratio of CyH₂Q[6] to G is 1 : 3. The G@CyH₂Q[6] was used as a fluorescent probe to identify metal cations. The probe exhibits a good selective recognition effect toward Fe³⁺ ions, which involves a reduced fluorescence intensity with a limit of detection of 1.321 × 10^-6 mol l^-1.

SUBMITTER: Zheng J

PROVIDER: S-EPMC8692968 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature

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Study on the host-guest complex of dicyclohexanocucurbit[6]uril and 2-phenylbenzimidazole, and its recognition effect toward Fe3.

Zheng Jun J An Lian L Gao Jie J Zhang Lin L Yang Xinan X Zhao Weiwei W Cheng Siyuan S Ma Peihua P

Royal Society open science 20211222 12

This paper has selected dicyclohexanocucurbit[6]uril (CyH2Q[6]) as the host and 2-phenylbenzimidazole (G) as the guest to investigate the host-guest interaction mode between CyH2Q[6] and G. Under acidic conditions, the complex was characterized using nuclear magnetic resonance, ultraviolet and fluorescence spectroscopy. The results show that the molecular ratio of CyH2Q[6] to G is 2 : 1. The crystals were cultured with ZnCl2 as a s ...[more]

PMID: 34950492

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