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Issue 50, 2017
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Photoactivatable europium luminescence turn-on by photo-oxygenation of β-diketone having pyrrole rings

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Abstract

This work demonstrates a novel photoactivatable turn-on-type lanthanide(III) luminescence. A β-diketone substrate having redox-active pyrrole moieties (LH2) undergoes efficient photo-oxygenation to afford the corresponding α-alkoxy diketone (LHOH) in the presence of lanthanide(III) ions, which trigger bright europium(III) red luminescence (PA-EuIII) turn-on, as well as activating the near-infrared luminescence (λem = 976 nm) of ytterbium(III). A photo-patterning process for security imaging is successfully demonstrated.

Graphical abstract: Photoactivatable europium luminescence turn-on by photo-oxygenation of β-diketone having pyrrole rings

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Publication details

The article was received on 15 May 2017, accepted on 31 May 2017 and first published on 31 May 2017


Article type: Communication
DOI: 10.1039/C7CC03753H
Citation: Chem. Commun., 2017,53, 6748-6751
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    Photoactivatable europium luminescence turn-on by photo-oxygenation of β-diketone having pyrrole rings

    J. Yuasa, T. Nakagawa, Y. Kita, A. Kaito and T. Kawai, Chem. Commun., 2017, 53, 6748
    DOI: 10.1039/C7CC03753H

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