4.7 Article

A chemiluminescent lantern: a coordination cage catalysed oxidation of luminol followed by chemiluminescence resonance energy-transfer

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DALTON TRANSACTIONS
卷 52, 期 14, 页码 4456-4461

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ROYAL SOC CHEMISTRY
DOI: 10.1039/d3dt00689a

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Luminol bound in a coordination cage undergoes oxidation by H2O2, resulting in chemiluminescence. The excited state energy from the chemiluminescence can be transferred to surface-bound fluorescein molecules through resonance energy transfer.
A molecule of luminol bound as guest inside a Co-8 coordination cage host undergoes oxidation by H2O2 to generate chemiluminescence by a process in which the Co(ii) ions in the cage superstructure activate the H2O2: accordingly the cage not only co-locates the reactants but also acts as a redox partner in the catalysis. The luminescence from oxidation of the cavity-bound luminol can transfer its excitation energy to surface-bound fluorescein molecules in an unusual example of Chemiluminescence Resonance Energy Transfer (CRET).

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