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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Chem Soc Rev. 2010 May 20;39(8):2768–2779. doi: 10.1039/c003079c

Scheme 7.

Scheme 7

Proposed mechanism of superoxo formation of diiron complexes with 6-Me3-TPA (Chart 2) and reactivity with 2,4-di-tert-butylphenol (DTBP). Resonance Raman data (given in cm−1) for the ν(O–O) and ν(Fe–O) frequencies and the 18O-downshifts (given in parentheses) is listed below each intermediate.