@article{8e93f57578ab434f94b905ab32db6bfa,
title = "Magnetic field effects on the photoinduced electron-transfer reactions in a ruthenium porphyrin-C60 ligand complex",
abstract = "Magnetic field effects (MFEs) on a photoinduced electron-transfer reaction in a semi-rigid linked system (RuP-C60) were examined in toluene and o-dichlorobenzene. The transient absorption spectra indicated that the photogenerated biradical produced by an intramolecular electron-transfer reaction was observed only in o-dichlorobenzene. The decay rate constants (kd) for the biradical decreased steeply at lower magnetic fields (≤0.06 T) and rapidly recovered at 0.08 T. The kd value was observed to decrease gradually above 0.2 T. The MFEs strongly indicated the formation of the singlet-born biradical for RuP-C60. The dip in the MFE at 0.06 T was ascribed to the S-T level crossing mechanism. The MFEs above 0.2 T can be explained by a spin-spin relaxation mechanism due to the anisotropic Zeeman interaction being related to the exchange interaction.",
author = "Hiroaki Yonemura and Yuki Motoda and Sunao Yamada",
note = "Funding Information: Acknowledgments We are grateful to Mr. H. Horiuchi for the preparation of the quartz cells for laser photolysis. We are grateful to Mr. Hironobu Tahara for the DFT B3LYP/(Ru:HW-ECP, others:6-31G*) calculations. We also thank the Center of Advanced Instrumental Analysis, Kyushu University for 1H-NMR measurements. The present study was supported by Grants-in-Aid for Scientific Research in the Priority Areas of {\textquoteleft}{\textquoteleft}Molecular Nano Dynamics{\textquoteright}{\textquoteright} (Area 432, No. 17034051) and {\textquoteleft}{\textquoteleft}Super-Hierarchical Structures{\textquoteright}{\textquoteright} (Area 446, No. 19022027), Scientific Research C (Nos. 17550131 and 21550135) and the 21st Century COE Program {\textquoteleft}{\textquoteleft}Function Innovation of Molecular Informatics{\textquoteright}{\textquoteright} from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",
year = "2010",
month = may,
doi = "10.1007/s00723-009-0114-3",
language = "English",
volume = "38",
pages = "217--235",
journal = "Applied Magnetic Resonance",
issn = "0937-9347",
publisher = "Springer Wien",
number = "2",
}