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. Author manuscript; available in PMC: 2014 Nov 19.
Published in final edited form as: Acc Chem Res. 2013 Sep 26;46(11):2725–2739. doi: 10.1021/ar400149m

TABLE 2.

Thermodynamics of heterolytic cleavage of O–O bonds in P450 and ABLM and direct H-atom abstraction by ABLM.

Reactant Thermodynamics (kcal/mol)
ΔE ΔE(solv) TΔS ΔG
FeIII(Por)(SCH3)–OOH Heterolytic −75 −52 −6 −58
FeIII(BLM)–OOH Heterolytic +99 +20 −7 +13
FeIII(BLM)–OOH Direct H-atom +13 +9 −16 −7