Effect of modified donor units on molecular hyperpolarizability of thienyl-vinylene nonlinear optical chromophores

Xianmin Zhang, Isao Aoki, Xianqing Piao, Shinichiro Inoue, Hidehisa Tazawa, Shiyoshi Yokoyama, Akira Otomo

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    Highly efficient and thermally stable nonlinear optical chromophores based on the phenyl vinylene thiophene vinylene (FTC) donor-π-acceptor structure have been synthesized and investigated. The donor part of the chromophores was modified with additional donor units, resulting in the enhanced nonlinear optical property with large molecular hyperpolarizability. Hyper-Rayleigh scattering measurement indicated nearly threefold increase of the molecular hyperpolarizability for novel chromophores compared with the benchmark FTC chromophore. Furthermore, measurement of the electro-optic coefficient confirmed that enhancement of microscopic molecular hyperpolarizability of the chromophores can be effectively translated into macroscopic electro-optic property. Measured electro-optic coefficients were nearly twofold larger than that for the benchmark FTC. Thermal analysis indicated that the synthesized chromophores showed the excellent temperature stability with decomposition temperatures up to 280 °C.

    Original languageEnglish
    Pages (from-to)5873-5876
    Number of pages4
    JournalTetrahedron Letters
    Volume51
    Issue number45
    DOIs
    Publication statusPublished - 2010 Nov 10

    Keywords

    • Chromophores
    • Donor-acceptor systems
    • Molecular hyperpolarizability
    • Nonlinear optics
    • Thermal stability

    ASJC Scopus subject areas

    • Biochemistry
    • Drug Discovery
    • Organic Chemistry

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