Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (06): 1205.doi: 10.3969/j.issn.0251-0790.2012.06.015

• Organic Chemistry • Previous Articles     Next Articles

Influence of Configuration on Photoinduced Electron-transfer Mechanism in Sulfonyl Amidine Linked Porphyrin-fullerene Dyad

HE Lin, CHEN Chen, LI Fei, ZHU Yi-Zhou, ZHENG Jian-Yu   

  1. State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2011-12-06 Online:2012-06-10 Published:2012-06-10

Abstract: A novel sulfonyl amidine linked porphyrin-fullerene dyad ZnP-H-C60 was facilely synthesized via a three components one-pot coupling reaction. There are two isomers(Z- and E-) in the dyad solution in low-polarity solvents, such as chloroform and toluene. We found that the photoinduced electron-transfer(PET) process could occur in two isomers, but the electron-transfer mechanism was different from each other. The electron transfer process was mediated by the intramolecular hydrogen-bond in (Z-)ZnP-H-C60; and in (E-)ZnP-H-C60, the porphyrin-fullerene exciplex was the precursor of the charge separation(CS) state due to the closer distance between porphyrin and fullerene entities.

Key words: Porphyrin, Fullerene, Photoinduced electron-transfer, Hydrogen-bond

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