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Dependence of the EPR spectrum of the CoII-substrate radical pair state in EAL on time after temperature step to T = 207 K. The free electron resonance position at g = 2.0 is shown by the arrow. Experimental conditions: microwave frequency, 9.3434 GHz; temperature, 207 K; microwave power, 20.25 mW; magnetic field modulation, 1.0 mT; modulation frequency, 100 kHz; scan rate, 6.52 mT/s; and time constant, 2.56 ms.
