Among all metal and oxidation state combinations, those with a low-spin d 6 electron configuration, i.e., LS Fe(II) and LS Co(III), most likely form codoped SACs with both favorable (i.e., ΔE < 0) oxo and HAT energetics thanks to a modest trade-off in the two reaction energies (Figure and Supporting Information Figure ). Therefore, codoped SACs have flexible tunability that allows for disrupting LFERs as in homogeneous catalysts. Brønsted-Evans-Polanyi (BEP) relations hold, one would ideally minimize (ΔE(oxo) + ΔE(HAT)) to achieve the optimal balance between ΔE(oxo) and ΔE(HAT) reaction energetics (Supporting Information Table ). Based on this criterion, we can conclude that A and C provide an optimal trade-off between ΔE(oxo) and ΔE(HAT) (Supporting Information Table ).