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Photo-optical properties of amorphous and crystalline films of azobenzene-containing photochromes with bent-shaped molecular structure

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    0465073 - FZÚ 2017 RIV CH eng J - Journal Article
    Bobrovsky, A. - Shibaev, V. - Hamplová, Věra - Bubnov, A. - Novotná, V. - Kašpar, M. - Piryazev, A. - Anokhin, D. - Ivanov, D.
    Photo-optical properties of amorphous and crystalline films of azobenzene-containing photochromes with bent-shaped molecular structure.
    Journal of Photochemistry and Photobiology A-Chemistry. Roč. 316, Feb (2016), s. 75-87. ISSN 1010-6030. E-ISSN 1873-2666
    R&D Projects: GA ČR GA13-14133S; GA MŠMT(CZ) LD14007
    Institutional support: RVO:68378271
    Keywords : bent-shaped azobenzene-containing compounds * E–Z isomerization * thin films * photoinduced phase transition * photoorientation
    Subject RIV: CC - Organic Chemistry
    Impact factor: 2.625, year: 2016

    A comparative study of the photo-optical properties and the photo-orientation processes in thin films of the bent-shaped azobenzene-containing compounds with different molecular structure was performed. For this purpose three new compounds were designed and prepared: two of these compounds with a symmetric bent-shaped molecular structure incorporate two azobenzene chromophores with different length of alkyl chains (6 and 8 methylene units), the third bent-shaped compound possesses only one azobenzene fragment. The effect of molecular and supramolecular structure, thermal prehistory of the films, wavelengths of the excitation light on the photo-optical properties, photoorientation processes and films morphology was revealed.

    Permanent Link: http://hdl.handle.net/11104/0263794

     
     
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