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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (15): 1421-1428. 上一篇    下一篇

研究论文

多支结构的均三嗪衍生物的合成及双光子吸收性质

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)
  • 投稿日期:2005-01-10 修回日期:2005-05-19 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 Published:2010-12-10
  • Contact: FANG Qi

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1444

被引次数

46 | 4

合成了3个系列各含有单支、双支和三支结构的9个均三嗪衍生物, 测定了它们的线性吸收和发射性质以及双光子吸收和发射性质. 随着三嗪环上侧链数目的增加, 线性吸收谱(吸收峰位于390～440 nm)、荧光谱(发射峰位于460～580 nm)和双光子荧光谱(激发波长800 nm)都发生红移; 各种光谱的强度逐渐增强; 基态与激发态的偶极矩之差Δμeg也逐渐增大. 另外, 从单支到三支结构, 双光子吸收截面σ随侧链数目呈非线性增加. 这表明多支结构的双光子吸收存在显著的增强效应.

关键词: 均三嗪, 多支结构, 合成, 双光子吸收, 增强效应

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