Figure 7.
Zero-field Mössbauer spectrum [experimental data (❶) and calculated fits (—)] recorded at 90 K for a frozen solution sample of the product of the reaction of 6 with excess H2O2 and a trace of NEt3. The sample contained 66% of 6a (B) and 34% of a diiron(III) species (A; δ = 0.45 mm/s and ΔEQ = 1.41 mm/s) with Mössbauer parameters similar to those of the starting material.