Nonlinear optical studies of fullerene-arylethyne hybrids

Ryo Hamasaki, Masateru Ito, Mouad Lamrani, Masaya Mitsuishi, Tokuji Miyashita, Yoshinori Yamamoto

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    56 Citations (Scopus)

    Abstract

    The fullerene-arylethyne hybrids 2 and 3 were synthesized in order to investigate their NLO activities. The β values for 2 and 3 were obtained by hyper Rayleigh scattering measurements. The arylethynyl fullerenes 3a-f exhibit β values in the range 20-361 × 10-30 esu. Interestingly, the β values for 3a,b are higher than those for 3c-f; a good correlation was obtained between the Hammett σp values of the para substituents of 3 and their β values. The 1H-NMR and E1/2 data indicate that the fullerene moieties of 3 attract electrons from the arylethynyl groups in the ground state. The β values for 2a-c are higher than those for 3a-f; the paracarborane-fullerene dyad 2c exhibits an exceptionally high β value (1189 × 10-30 esu). The electronic characteristics of the carbon and boron clusters are discussed.

    Original languageEnglish
    Pages (from-to)21-26
    Number of pages6
    JournalJournal of Materials Chemistry
    Volume13
    Issue number1
    DOIs
    Publication statusPublished - 2003 Jan 1

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Chemistry

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