Yuhe Chen, Jingsha Yang, Shuai Zhang, Zeng Xi, Heng Luo
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Construction of a room-temperature phosphorescence system by cucurbit[8]uril-based supramolecular assembly
A bromophenylpyridine derivative (BH-PY) was designed and synthesized as the guest molecule included in the cavity of cucurbit[8]uril (CB[8]) to form a 2:1 host–guest complex, which displays good room-temperature phosphorescence (RTP) in aqueous solutions. The interaction and optical properties of CB[8] with a guest in aqueous solution were investigated using 1H NMR spectroscopy, UV–Vis absorbance spectra, fluorescence and phosphorescence spectra and X-ray diffraction analysis in detail. The result showed that the bromophenyl moieties of the two guest molecules are included in the cavity of the CB[8] in a ‘head-to-tail’ stacking way, whereas the other part of BH-PY remains outside the portal to form a 2:1 supramolecular structurce, and supramolecular assemblies were applied for targeted phosphorescent imaging of mitochondria.
期刊介绍：
The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites.
The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.
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