高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (8): 1554.

• 研究论文 • 上一篇    下一篇

螺二芴富勒烯吡咯烷衍生物的合成及电化学和光限幅性能

李财花, 霍志铭, 曾和平   

  1. 华南理工大学化学与化工学院功能分子研究所, 广州 510641
  • 收稿日期:2009-11-24 出版日期:2010-08-10 发布日期:2010-08-10
  • 通讯作者: 曾和平, 男, 博士, 教授, 博士生导师, 主要从事有机光电材料研究. E-mail: hpzeng@scut.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20671036)和广东省科技项目(批准号: 2007A010500008)资助.

Synthesis, Electrochemistry and Optical Limiting Properties of Spirobifluorene-fulleropyrrolidine Derivatives

LI Cai-Hua, HUO Zhi-Ming, ZENG He-Ping*   

  1. Institute of Functional Molecules, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
  • Received:2009-11-24 Online:2010-08-10 Published:2010-08-10
  • Contact: ZENG He-Ping. E-mail: hpzeng@scut.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20671036)和广东省科技项目(批准号: 2007A010500008)资助.

摘要: 设计合成了3种新颖的螺二芴键联富勒烯(C60/C70)吡咯烷衍生物, 其结构通过IR, 1H NMR, 13C NMR和MALDI-TOF进行确证, 其电化学性质用循环伏安法进行研究. 结果表明, C70衍生物6的还原电位较C60衍生物7分别向负电势移动0.1, 0.12和0.01 V. 同时, 使用纳秒和飞秒激光分别研究了化合物6, 7和8的光限幅性能, 其光限幅阈值分别为15.3, 23.3和13.7 J/cm2, 表明材料具有优异的光限幅性能.

关键词: 光限幅, 螺二芴, 富勒烯吡咯烷

Abstract: Three novel fullerene(C60/C70) derivatives containing spirobifluorene, named 2-(9,9′-spirobi[fluorene]-2-yl)-1-methylfullero[C70]pyrrolidine(6), 2-(9,9′-spirobi[fluorene]-2-yl)-1-methylfullero[C60]pyrrolidine(7) and 2′-(1-methyl- fullero[C60]pyrrolidin-2-yl)-9,9′-spirobi[fluorene]-2-carbaldehyde(8), respectively, were synthesized and their structures were confirmed by IR, 1H NMR, 13C NMR, MALDI-TOF. Their electrochemical properties were studied by cyclic voltammetry. The results show that reduction peaks of C70 derivative 6 shift to more negative than that of C60 derivative 7 about 0.1, 0.12 and 0.01 V, respectively. Their optical limiting properties were investigated by nanosecond and femtosecond laser system. Comparative study on their optical limiting properties indicated that they showed different optical-limiting mechanisms for nanosecond and femtosecond laser. The optical limiting thresholds of 13.7, 15.3 and 23.3 J/cm2 in nanosecond timescale were determined for compounds 6—8. The results show that they are effective optical limiters for laser protection.

Key words: Optical-limiting, Spirobifluorene, Fulleropyrrolidine

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