高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1097.

• 论文 • 上一篇    下一篇

四-(对-磺基苯基)卟啉二酸(H42+TSPP)分子聚集体的共振喇曼光谱研究

陈东明1, 李晓原2, 尤乃亭2, 章应辉1, 何天敬1, 刘凡镇1   

  1. 1. 中国科技大学化学物理系, 合肥 230026;
    2. 香港科技大学化学系, 香港九龙清水湾
  • 收稿日期:1998-10-13 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 陈东明,男,34岁,博士,讲师.
  • 作者简介:陈东明,男,34岁,博士,讲师.
  • 基金资助:

    国家自然科学基金(批准号:29873043);中国科学院留学经费择优支持回国工作基金

Resonance Raman Study of Tetrakis(p-sulfonatophenyl)porphyrin Diacid(H42+TSPP) Molecular Aggregates

CHEN Dong-Ming1, LI Xiao-Yuan2, YU Nai-Teng2, ZHANG Ying-Hui1, HE Tian-Jing1, LIU Fan-Zhen1   

  1. 1. Department of Chemical Physics, The University of Science and Technology of China, Hefei, 230026;
    2. Chemistry Department, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon
  • Received:1998-10-13 Online:1999-07-24 Published:1999-07-24

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摘要： 研究了四-(对-磺基苯基)卟啉二酸(H2+4TSPP)的J-聚集体共振喇曼光谱,用氘代法考察了各喇曼谱带的同位素位移.指认3条低波数喇曼带为分子聚集体的晶格模.喇曼光谱退偏比测量表明,聚集体中H2+4TSPP的对称性较分子态降低.比较游离碱H2TSPP和分子态H2+4TSPP共振喇曼光谱讨论了聚集体中H2+4TSPP的结构变化.H2+4TSPP在聚集体中以接近面对面方式排列.

关键词: 共振喇曼, 分子聚集体, 卟啉

Abstract: Polarized resonance Raman spectra of J-aggregated tetrakis(p-sulfonatophenyl)porphyrin diacid (H42+TSPP) were reported. In addition, resonance Raman spectra of molec-ular state H2+4TSPP and the free base H2TSPP were also recorded for comparison. The observed Raman bands of the aggregates were assigned based on their isotopic shifts upon deuteration. The low frequency bands at 81, 119 and 141cm-1were assigned to intermolecular lattice modes. The structure alteration of H42+TSPP induced by the aggregation was evaluated by comparing the resonance Raman spectra of the aggregated H42+TSPP with those of the molecular state H42+TSPP. It was deduced that H42+TSPP in the aggregates is arranged in a face to face manner.

Key words: Resonance Raman, Molecular aggregates, Porphyrins

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