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Liquid solution (25 °C) EPR spectra of the sample {ZrW5}2/H2O2/4-oxo-TEMP (CH3CN, [Zr]:[H2O2]:[4-oxo-TEMP] = 1:50:10, [Zr] = 0.02 M): (A) immediately after 4-oxo-TEMP addition; (B) sample in A, stored for 25 min at 25 °C; (C) sample in A, stored for 60 min at 25 °C; and (D) – simulated spectrum (C) (g = 2.006, A(14N) = 1.48 mT, and lwpp = [0.28 0.85]).
