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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Photoinduced Electron Transfer between C_(60)/C_(70) and Zinc Tetraphenylporphyrin in Polar Solvents
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Photoinduced Electron Transfer between C_(60)/C_(70) and Zinc Tetraphenylporphyrin in Polar Solvents

机译：C_（60）/ C_（70）与四苯基卟啉锌在极性溶剂中的光诱导电子转移

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摘要

Photoinduced electron transfer between C_(60)/C_(70) and zinc tetraphenylporphyrin (ZnTPP) in a polar solvent has been investigated with a nanosecond laser photolysis method by observing the transient absorption bands in the near-IR region. The transient absorption bands of the C_(60)/C_(70) radical anion (C_(60)~(·-)/C_(70)~(·-) in the near-IR region gave evidence of electron transfer for the system ZnTPP and C_(60)/C_(70). In ZnTPP solution where C_(60) and C_(70) were photoexcited predominantly, electron transfer takes place from the ground state of ZnTPP to the triplet states of C_(60)/C_(70) (~3C_(60)~*/~3C_(70)~*). In the concentrated ZnTPP solution where ZnTPP was predominantly photoexcited, the tripled state of ZnTPP donates the electron to the ground state of C_(60)/C_(70), producing C_(60)~(·-)/C_(70)~(·-). The efficiency of electron transfer via the ~3C_(60)~*/~3C_(70)~* route is higher than that via ~3ZnTPP~*.
机译：通过纳秒激光光解法，通过观察近红外区域的瞬态吸收带，研究了极性溶剂中C_（60）/ C_（70）与四苯基卟啉锌（ZnTPP）之间的光诱导电子转移。 C_（60）/ C_（70）自由基阴离子（C_（60）〜（·-）/ C_（70）〜（·-）的瞬态吸收带为近红外区的电子转移提供了证据。系统ZnTPP和C_（60）/ C_（70）。在主要激发C_（60）和C_（70）的ZnTPP溶液中，电子从ZnTPP的基态转移到C_（60）/的三重态C_（70）（〜3C_（60）〜* /〜3C_（70）〜*）。在ZnTPP主要被光激发的浓ZnTPP溶液中，ZnTPP的三重态将电子给予C_（60）的基态。 / C_（70），生成C_（60）〜（·-）/ C_（70）〜（·-）。通过〜3C_（60）〜* /〜3C_（70）〜*路径进行电子转移的效率高于〜3ZnTPP〜*。

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