TY - JOUR
T1 - Photoinduced electron-transfer and magnetic-field effects on the decay rates of photogenerated biradicals in a phenothiazine-C60 linked compound with six methylene groups
T2 - Temperature dependence
AU - Moribe, Shinya
AU - Yonemura, Hiroaki
AU - Yamada, Sunao
PY - 2006/2/1
Y1 - 2006/2/1
N2 - Photoinduced electron-transfer reactions and magnetic-field effects (MFEs) on the decay of photogenerated biradical in a phenothiazine-C60 linked compound with six methylene groups were examined in benzonitrile at various temperatures (283-343 K). The decay rate constants of the biradicals were dramatically decreased in the lower magnetic fields (0-0.2 T) and increased in the higher magnetic fields (0.2-1.0 T). These reverse phenomena in the MFEs were more clearly observed with the increase of temperature and are explained by the contribution of spin-lattice relaxation mechanism due to anisotropic Zeeman interaction. The temperature dependence on the MFEs supports the above mechanism.
AB - Photoinduced electron-transfer reactions and magnetic-field effects (MFEs) on the decay of photogenerated biradical in a phenothiazine-C60 linked compound with six methylene groups were examined in benzonitrile at various temperatures (283-343 K). The decay rate constants of the biradicals were dramatically decreased in the lower magnetic fields (0-0.2 T) and increased in the higher magnetic fields (0.2-1.0 T). These reverse phenomena in the MFEs were more clearly observed with the increase of temperature and are explained by the contribution of spin-lattice relaxation mechanism due to anisotropic Zeeman interaction. The temperature dependence on the MFEs supports the above mechanism.
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U2 - 10.1016/j.crci.2005.09.006
DO - 10.1016/j.crci.2005.09.006
M3 - Article
AN - SCOPUS:30944461174
VL - 9
SP - 247
EP - 253
JO - Comptes Rendus Chimie
JF - Comptes Rendus Chimie
SN - 1631-0748
IS - 2
ER -