影像科学与光化学 ›› 2011, Vol. 29 ›› Issue (4): 278-286.DOI: 10.7517/j.issn.1674-0475.2011.04.278

• 研究论文 • 上一篇    下一篇

2-脲基-4[1氢]-嘧啶酮四氢键萘-蒽超分子组装体系:“通过键”机制的单重态能量传递

俞茂林1,2, 王素敏1, 冯科1, 佟振合1, 吴骊珠1   

  1. 1. 中国科学院理化技术研究所光化学转换与功能材料重点实验室, 北京100190;
    2. 中国科学院研究生院, 北京100049
  • 收稿日期:2011-04-21 修回日期:2011-05-11 出版日期:2011-07-23 发布日期:2011-07-23
  • 通讯作者: 吴骊珠
  • 基金资助:
    科技部国家重点基础研究发展规划项目(2007CB808004,2007CB36001);国家自然科学基金资助项目(20732007,21002108,91027041);中科院基础局的资助

Through-Bond Singlet-Singlet Energy Transfer in Naphthalene Anthracene Supramolecular Ensemble via 2-Ureido-4[1H]-Pyrimidinone Quadruple Hydrogen-Bonded Module

YU Mao-lin1,2, WANG Su-ming1, FENG Ke1, TONG Zhen-he1, WU Li-zhu1   

  1. 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R.China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P.R.China
  • Received:2011-04-21 Revised:2011-05-11 Online:2011-07-23 Published:2011-07-23

摘要: 设计合成了基于2-脲基-4[1氢]-嘧啶酮AADD四氢键萘-蒽超分子组装体系UPNa·UPAn.稳态和时间分辨荧光光谱研究表明UPNa·UPAn四氢键组装体可以发生从萘到蒽的高效、快速的单重态能量传递过程.体系内光诱导单重态能量传递的速度和效率远大于通过Förster机制的单重态能量传递速率,表明组装体系UPNa·UPAn中萘向蒽的光诱导单重态能量传递是经由体系内的Förster和"通过AADD四氢键"的超交换机制发生的.

关键词: 能量传递, 萘, 蒽, 2-脲基-4[1氢]-嘧啶酮四氢键

Abstract: A relative rigid naphthalene-anthracene supramolecular ensemble has been designed and synthesized via 2-ureido-4[1H]-pyrimidinone quadruple hydrogen-bonded module.Steady-state and time-resolved fluorescence profiles demonstrate that the singlet-singlet energy transfer occurs effectively from naphthalene to anthracene moieties in ensemble UPNa? UPAn.The rate constant and efficiency for photoinduced energy transfer in ensemble UPNa稶PAn is much greater than that of theoretical calculation through Förster mechanism.Therefore,the singlet-singlet energy transfer process takes place via Förster mechanism and "through AADD quadruple hydrogen bond" mechanism in this ensemble.

Key words: energy transfer, naphthalene, anthracene, 2-ureido-4[1H]-pyrimidinone quadruple hydrogen bonds

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