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化学学报
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化学学报 ›› 2002, Vol. 60 ›› Issue (9): 1543-1547.    下一篇

研究论文

富勒烯（C_(60)/C_(70)）与三苯基胺间的光诱导电子转移过程研究

曾和平   

  1. 华南师范大学化学系,广州(510631)
  • 发布日期:2002-09-15

Photoinduced Electron Transfer Processes between Triphenylamine and Fullerenes (C_(60)/C_(70))

Zeng Heping   

  1. Department of Chemistry, South China Normal University,Guangzhou (510631)
  • Published:2002-09-15

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被引次数

1

用激光光解方法研究了富勒烯（C_(60)/C_(70)）与三苯基胺（TPA）间的光诱 导电子转移过程。在近红外区，观测到TPA阴离子自由基，富勒烯（C_(60)/C_(70) ）激发三线态和阴离子自由基。在苯腈溶液中，利用瞬态谱测定了电子从TPA转移 到富勒烯（C_(60)/C_(70)）激发三线态的量子转化产率（Φ_(et)）和电子转移常 数（k_(et)）。

关键词: 光诱导, 电子转移反应, 富勒烯, 苯胺 P, 光解

Photoinduced electron transfer processes between fullerenes (C_(60) /C_(70)) and triphenylamine (TPA) have been studied by nanosecond laser flash photolysis. Quantum yields (Φ_(et)) and rate constants (k_(et)) of electron transfer from TPA to excited triplet state of fullerenes (C_(60)/C_(70)) in benzonitrile have been evaluated by observing the transient absorption bands in the near-IR region where the excited triplet state, radical anion of fullerenes (C_(60)/C_(70)) and radical cations of TPA appear.

Key words: PHOTOINDUCED, CHARGE TRANSFER REACTION, fullerenes, ANILINE P, PHOTOLYSIS

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