This paper has selected dicyclohexanocucurbit[6]uril (CyHQ[6]) as the host and 2-phenylbenzimidazole () as the guest to investigate the host-guest interaction mode between CyHQ[6] and . Under acidic conditions, the complex was characterized using nuclear magnetic resonance, ultraviolet and fluorescence spectroscopy. The results show that the molecular ratio of CyHQ[6] to is 2 : 1. The crystals were cultured with ZnCl as a structural inducer under acidic conditions and single crystal X-ray diffraction showed that the molecular ratio of CyHQ[6] to is 1 : 3. The G@CyHQ[6] was used as a fluorescent probe to identify metal cations. The probe exhibits a good selective recognition effect toward Fe ions, which involves a reduced fluorescence intensity with a limit of detection of 1.321 × 10 mol l.
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| http://dx.doi.org/10.1098/rsos.211280 | DOI Listing |
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