物理化学学报 >> 2012, Vol. 28 >> Issue (02): 283-289.doi: 10.3866/PKU.WHXB201111292

热力学,动力学和结构化学 上一篇    下一篇

苝分子低聚体的形成及其光谱性质

刘丽敏1, 张先付1,2   

  1. 1. 河北科技师范学院理化学院, 河北秦皇岛 066004;
    2. MPC Technologies, Hamilton, ON, Canada L8S 3H4
  • 收稿日期:2011-08-08 修回日期:2011-11-14 发布日期:2012-01-11
  • 通讯作者: 张先付 E-mail:zhangxianfu@tsinghua.org.cn
  • 基金资助:

    河北省自然科学基金(B2010001518)资助项目

Formation and Spectral Properties of Perylene Oligomers

LIU Li-Min1, ZHANG Xian-Fu1,2   

  1. 1. College of Physics and Chemistry, Hebei Normal University of Science and Technology, Qinhuangdao 066004, Hebei Province, P. R. China;
    2. MPC Technologies, Hamilton, ON, Canada L8S 3H4
  • Received:2011-08-08 Revised:2011-11-14 Published:2012-01-11
  • Contact: ZHANG Xian-Fu E-mail:zhangxianfu@tsinghua.org.cn
  • Supported by:

    The project was supported by the Natural Science Foundation of Hebei Province, China (B2010001518).

摘要: 探讨了苝分子低聚体的形成条件和影响因素, 这些低聚体与晶核形成紧密相关. 用荧光光谱和吸收光谱法研究了不同的水含量和苝浓度对聚集的影响, 低聚体属于具有光活性的J 型, 能发红光. 计算得到低聚体的聚集数为9, 平衡常数数量级较大.

关键词: 苝, 聚集, 晶核, 聚集数, 平衡常数, 荧光

Abstract: We report the conditions required for the formation of perylene oligomers, which are closely related to the crystal nuclei for the formation of perylene nanocrystal. The effects of water content and perylene concentration on aggregation were studied using fluorescence and absorption spectra. The spectra indicated that fluorescent J-type perylene oligomers were formed. An aggregation number of 9, and large equilibrium constant were obtained for the reaction.

Key words: Perylene, Aggregation, Crystal nuclei, Aggregation number, Equilibrium constant, Fluorescence

MSC2000: 

  • O642