Pathway 2 follows a 6-step EC'CCCE mechanism that yields the 2e -oxidation of C2O4 2-•CO2 to 3CO2. Note that addition of eq 8 to Pathway 2 yields the 2e -oxidation of C2O4 2-to 2CO2, demonstrating that both pathways are equivalent. Hereafter, for simplicity, we refer to the combination of both pathways as DiMeFc + -mediated C2O4 2-oxidation.