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有机化学
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有机化学 ›› 2003, Vol. 23 ›› Issue (5): 447-451. 上一篇    下一篇

研究论文

富勒烯(C60／C70)与N，N，N’，N’-四-(对甲苯基)-4，4’-二胺-1，1’-二苯硒醚(TPDASe)间光诱导电子转移过程的激光光解研究

曾和平   

  1. 华南师范大学化学系
  • 发布日期:2003-05-25

Laser Flash Photolysis Studied on Photoinduced Electron Transfer from N, N, N', N' -Tetra-(p-methylphenyl)-4,4'-diamino-l, I'-diphenyl Selenide (TPDASe) to Fullerenes(C60/C70)

Zeng Heping   

  1. Department of Chemistry,South China Normal University
  • Published:2003-05-25

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富勒烯(C60／C70)与N，N，N’，N’-四-(对甲苯基)-4，4’-二胺-1，1’-二 苯硒醚(TPDASe)间在激光光诱导条件下，发生了分子间的电子转移过程．在可见- 近红外区(600-1200nm)，观测到了TPDASe阳离子自由基、富勒烯(C60／C70)激发三 线态和阴离子自由基，在苯腈溶液中，观测瞬态谱测定了电子从TPDASe转移到富勒 烯(C60／C70)激发三线态的量子转化产率(Φet^T)和电子转移常数(Ket)．

关键词: 富勒烯, 有机硒化合物, 醚, 电子转移反应, 光诱导, 激发态

The photoinduced electron-transfer between N, N, N', /V'-tetra-(p- methylphenyl)-4, 4'-diamino-l, 1'-diphenyl selenide (TPDASe) and fullerene (C60/C70) occurred in benzonitrile by nanosecond laser flash photolysis.Transient absorption spectral measurements were carried out during laser flash photolysis of a mixture of the fullerenes (C60/C70) and TPDASe at 532 run. The electron transfer from the TPDASe to the excited triplet state of the fullerenes(C60/C70)quantum yields and rate constants of electron transfer from TPDASe to the excited triplet state of fullerenes (C60/C70) benzonitrile have been evaluated by observing the transient absorption bands in the near-IR region wherethe excited triplet state, radical anion of fullerenes (C60/C70) and radical cations of TPDASe appear

Key words: fullerene;ORGANO SELENIUM COMPOUNDS;ETHER;CHARGE TRANSFER REACTION, PHOTOINDUCED;EXCITED STATE

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