Photoinduced Electron Transfer from Nitoxide Free Radicals to the Triplet State of C60
作者： Yasuyuki Araki , Hongxia Luo , Shafiqul D.-M. Islam , Osamu Ito , Michio M. Matsushita
DOI: 10.1021/JP0273373
关键词:
摘要: The photoinduced electron transfer of C60 in the presence stable free radicals such as nitoxides has been studied by nanosecond laser photolysis measuring transient absorption spectra visible and near-IR regions. For N-oxy-piperidine radical, rise radical anion was not observed, although decay rate triplet excited state quite fast. with 4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (nitronyl nitroxide), via confirmed from C60, quantum yield is high. From rates efficiencies transfer, which are strongly affected donor ability substituents on phenyl moiety nitronyl nitroxide a specific spin−spin interaction spin doublet revealed. In longer time scale measurements, t...
harvard.edu
acs.org
sci-hub.se 参考文章(37)
James W. Arbogast, Christopher S. Foote, Michelle Kao, Electron transfer to triplet fullerene C60 Journal of the American Chemical Society. ,vol. 114, pp. 2277- 2279 ,(1992) , 10.1021/JA00032A063
Edwin F. Ullman, Jeanne H. Osiecki, D. G. B. Boocock, R. Darcy, Stable free radicals. X. Nitronyl nitroxide monoradicals and biradicals as possible small molecule spin labels Journal of the American Chemical Society. ,vol. 94, pp. 7049- 7059 ,(1972) , 10.1021/JA00775A031
Yasuhiro Kobori, Keizo Takeda, Kazuhide Tsuji, Akio Kawai, Kinichi Obi, Exchange Interaction in Radical-Triplet Pairs: Evidences for CIDEP Generation by Level Crossings in Triplet-Doublet Interactions Journal of Physical Chemistry A. ,vol. 102, pp. 5160- 5170 ,(1998) , 10.1021/JP980870R
Matt Gevaert, Prashant V. Kamat, Photochemistry of fullerenes. Excited-state behavior of C60 and C70 and their reduction in poly(methyl methacrylate) films The Journal of Physical Chemistry. ,vol. 96, pp. 9883- 9888 ,(1992) , 10.1021/J100203A056
A. Samanta, P.V. Kamat, Qenching of fullerene triplets by stable nitroxide radicals Chemical Physics Letters. ,vol. 199, pp. 635- 639 ,(1992) , 10.1016/0009-2614(92)85023-4
Keisuke Matsumoto, Mamoru Fujitsuka, Tadatake Sato, Shinji Onodera, Osamu Ito, Photoinduced Electron Transfer from Oligothiophenes/Polythiophene to Fullerenes (C60/C70) in Solution: Comprehensive Study by Nanosecond Laser Flash Photolysis Method Journal of Physical Chemistry B. ,vol. 104, pp. 11632- 11638 ,(2000) , 10.1021/JP002228E
Tatsuya Nojiri, Maksudul M. Alam, Hideo Konami, Akira Watanabe, Osamu Ito, Photoinduced electron transfer from phthalocyanines to fullerenes (C60 and C70) Journal of Physical Chemistry A. ,vol. 101, pp. 7943- 7947 ,(1997) , 10.1021/JP9714734
Aharon Blank, Haim Levanon, Interaction between Polarized Triplets and Stable Radicals in Liquid Solutions Journal of Physical Chemistry A. ,vol. 105, pp. 4799- 4807 ,(2001) , 10.1021/JP010033G
Tadashi Watanabe, Kenichi Honda, Measurement of the extinction coefficient of the methyl viologen cation radical and the efficiency of its formation by semiconductor photocatalysis The Journal of Physical Chemistry. ,vol. 86, pp. 2617- 2619 ,(1982) , 10.1021/J100211A014
V.A. Kuzmin, A.S. Tatikolov, Energy transfer in the course of triplet state quenching of aromatic hydrocarbons by nitroxyl radicals Chemical Physics Letters. ,vol. 53, pp. 606- 610 ,(1978) , 10.1016/0009-2614(78)80080-3