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 - Nov 10 2010

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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