Figure 3.

X‐band EPR spectra of the reaction of a) 20‐α,α, b) 22‐α,α, c) 21‐α,α in the presence of MNP at t=150 minutes after the addition of the last reagent Fe(II)SO4 . Experimental condition. 9.866 GHz microwave frequency, 0.1 mT modulation amplitude and 0.2 mW microwave power.