Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (18): 2023-2029. Previous Articles     Next Articles

Original Articles

Hamilton受体与萘之间光诱导电子转移和三重态能量传递研究

赵 鑫a,c 李迎迎a 李沙渝b 曾 毅a,c
陈金平*,a 杨国强b 李 嫕*,a

  

  1. (a光化学转换与功能材料重点实验室 中国科学院理化技术研究所 北京 100190)
    (b北京分子科学国家实验室 光化学重点实验室 中国科学院化学研究所 北京 100190)
    (c中国科学院研究生院 北京 100039)

  • 投稿日期:2008-02-04 修回日期:2008-04-11 发布日期:2008-09-28
  • 通讯作者: 李嫕

Photoinduced Electron Transfer and Triplet Energy Transfer in Hamilton Receptor-Naphthalene Dyads

ZHAO, Xin a,c LI, Ying-Ying a LI, Sha-Yu b ZENG, Yi a,c
CHEN, Jin-Ping *,a YANG, Guo-Qiang b LI, Yi *,a
  

  1. (a Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190)
    (b Beijing National Laboratory for Molecular Sciences & Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190)
    (c Graduate School, Chinese Academy of Sciences, Beijing 100039)
  • Received:2008-02-04 Revised:2008-04-11 Published:2008-09-28
  • Contact: LI, Yi

A naphthalene-barbiturate conjugant (G-Np) and a pockety barbiturate receptor (Hamilton receptor, H-receptor) with two 2,6-diaminopyridine groups linked through an isophthalic acid spacer were synthesized. The dyad is created by functionalizing the H-receptor and G-Np with six hydrogen bonds, which provide a high apparent association constant (KAPP approximately equal to (4.9±0.5)×104 mol-1•L in CH2Cl2). Excitation with 330 nm light mainly results in a singlet electron transfer between naphthalene and the H-receptor at room temperature, and a triplet energy transfer from the H-receptor to naphthalene at 77 K. These findings provide a new model for the study of the Hamilton hydrogen-bonded system, and will benefit understanding the role of hydrogen bonding in natural assemblies.

Key words: hydrogen bond, Hamilton receptor, photoinduced electron transfer, triplet energy transfer