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Issue 41, 2016
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Stealth fast photoswitching of negative photochromic naphthalene-bridged phenoxyl-imidazolyl radical complexes

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Abstract

Naphthalene-bridged phenoxyl-imidazolyl radical complex (Np-PIC) is a novel fast switchable negative photochromic compound, which shows the thermal back reaction in the millisecond time scale. Upon UV light irradiation, Np-PIC shows the hypochromic effect in the UVA region due to there being less conjugation in the transient isomer. By replacing the phenoxyl unit with a naphthoxyl unit, the molecular structure has an asymmetric carbon, leading to fast chiroptical switching. This simple molecular design will be a good candidate for the future development of negative photochromic compounds.

Graphical abstract: Stealth fast photoswitching of negative photochromic naphthalene-bridged phenoxyl-imidazolyl radical complexes

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Publication details

The article was received on 19 Feb 2016, accepted on 20 Apr 2016 and first published on 20 Apr 2016


Article type: Communication
DOI: 10.1039/C6CC01534D
Chem. Commun., 2016,52, 6797-6800

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    Stealth fast photoswitching of negative photochromic naphthalene-bridged phenoxyl-imidazolyl radical complexes

    K. Mutoh, Y. Kobayashi, Y. Hirao, T. Kubo and J. Abe, Chem. Commun., 2016, 52, 6797
    DOI: 10.1039/C6CC01534D

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