Journal
APPLIED MAGNETIC RESONANCE
Volume 47, Issue 7, Pages 781-791Publisher
SPRINGER WIEN
DOI: 10.1007/s00723-016-0791-7
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Funding
- Russian Foundation for Basic Research [15-33-20421, 14-03-93180]
- Ministry of Education and Science of the Russian Federation
- German Academic Exchange Service
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1416238] Funding Source: National Science Foundation
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X-band light-induced continuous wave EPR (LEPR) spectroscopy was employed to study triplet fullerene C-70, C-3(70), in glassy decalin and o-terphenyl. The EPR lineshapes observed in the temperature ranges between 50 and 130 K (for decalin) as well as between 77 and 200 K (for OTP) were successfully simulated. The results show that the narrow LEPR line does not originate from a radical S = 1/2, but arises from jumps of the EPR lines within the LEPR spectrum of C-3(70) between symmetrical LEPR positions provided by paramagnetic relaxation process of C-3(70). This process can be described by a relaxation-induced coherence transfer between two resonance transitions having close transition frequencies.
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