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. Author manuscript; available in PMC: 2014 Feb 27.
Published in final edited form as: J Am Chem Soc. 2013 Feb 14;135(8):3286–3299. doi: 10.1021/ja400183g

Table 2.

Kinetic parameters of HS [(TMC)FeIII–OOH]2+ and LS [(N4Py)FeIII–OOH]2+ O–O homolytic cleavages.

kcal/mol [(TMC)FeIII–OOH]2+ [(N4Py)FeIII–OOH]2+
Ea 13.9(5) 12.9(2)
ΔH‡ 13.4(5) 12.6(3)
ΔS‡(cal/mol·K) −17.9(4) −28.9(2)
ΔG‡ 18.7(5) (298 K) 20.9(3) (298 K)