Table 2. Summary of ExperimentalS_I/S_II, Calculated Fe²⁺/Fe³⁺ Pairs, Fe Vacancies (δ_cal.), Magnetic Moment (μ_cal), and Saturation Magnetization (Ms_cal.5K) together with the Experimental Saturation Magnetization (Ms_exp.5K) of Samples Opt₁-33, Opt₂-29, and Opt₃-33. δ_cal., μ_cal., and Fe²⁺/Fe³⁺ Pairs Have Been Calculated Using eqs 345, Respectively. The Optimization Stages of Opt₁, Opt₂, and Opt₃ Are Arranged in Increasing Gray Levels.