Effect of alkyl groups on emission properties of aggregation induced emission active N-alkyl arylaminomaleimide dyes

Hiroaki Imoto, Katsuya Nohmi, Kohei Kizaki, Seiji Watase, Kimihiro Matsukawa, Shunsuke Yamamoto, Masaya Mitsuishi, Kensuke Naka

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    Aggregation induced emission (AIE) active N-alkyl aminomaleimide dyes with various kinds of N-alkyl groups were synthesized in a one pot process. The synthesized dyes exhibited different emission behaviors depending on the chemical structure of the N-alkyl group, although they had no direct contribution to the π-conjugated system. Chain length, hydroxyl group and branching structure were important in the emission properties such as quantum yield and emission wavelength. Furthermore, it was found that one of the dyes showed mechanochromism; the green emission of crystal samples turned to blue emission after grinding. Single crystal X-ray diffraction analysis revealed that the surrounding around the luminophore was dominant in the emission behaviors.

    Original languageEnglish
    Pages (from-to)94344-94350
    Number of pages7
    JournalRSC Advances
    Volume5
    Issue number114
    DOIs
    Publication statusPublished - 2015 Oct 27

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)

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