Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (15): 1421-1428. Previous Articles     Next Articles

Original Articles


崔月芝1 2,方奇*bc,薛刚2,许贵宝2,于文涛2,尹磊2   

  1. (1山东轻工业学院化工系 济南 250100)
    (2山东大学晶体材料国家重点实验室 济南 250100)
    (3中国科学院上海有机化学研究所有机氟化学重点实验室 上海 200032)
  • 收稿日期:2005-01-10 修回日期:2005-05-19 出版日期:2005-08-15 发布日期:2010-12-10
  • 通讯作者: 方奇

Syntheses and Two-photon Absorption Properties of Multi-branched s-Triazine Derivative

CUI Yue-Zhi1,2, FANG Qi*bc, XUE Gang2, XU Gui-Bao2, YU Wen-Tao2, YIN Lei2   

  1. (1 Department of Chemical Engineering, Shandong College of Light Industry, Jinan 250100)
    (2 State Key Laboratory of Crystal Material, Shandong University, Jinan 250100)
    (3 Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032)
  • Received:2005-01-10 Revised:2005-05-19 Online:2005-08-15 Published:2010-12-10
  • Contact: FANG Qi

Three series of multi-branched s-triazine derivatives with one, two or three branches have been synthesized. For each series, the linear absorption (peak position: 390~440 nm) and emission spectra (peak position: 460~580 nm), along with the two-photon exited fluorescence spectra excited at 800 nm, showed regular red-shifts as the branch number was increased, and their spectral intensities were significantly enlarged from one- to three-branched structures. In addition, the difference of dipole moment (Δμeg) between the ground and the excited states became larger as the branch number was increased from 1 to 3. The two-photon absorption cross section σ was non-linearly increased with the increase of the branch number and the reduced σ, indicating a remarkable cooperative enhancement of σ in the multi-branched s-triazine derivatives.

Key words: s-triazine, multi-branched, synthesis, two-photon absorption, cooperative enhancement