H2O2activation with biomimetic non-haem iron complexes and AcOH: connecting the g = 2.7 EPR signal with a visible chromophore

Olga V Makhlynets,Alexander S Filatov,Irina G Belaya,Elena V Rybak-Akimova,Yurii S Moroz,Williamson N Oloo,Peter Müller,Lawrence Que,Taryn D Palluccio,Matthew A Cranswick

doi:10.1039/c3cc47632d

H2O2activation with biomimetic non-haem iron complexes and AcOH: connecting the g = 2.7 EPR signal with a visible chromophore

Olga V Makhlynets, Alexander S Filatov + Show 8 more

https://doi.org/10.1039/c3cc47632d

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Journal: Chem. Commun.	Publication Date: Jan 1, 2014
Citations: 51

Affiliation: University at Albany, State University of New York, Tufts University, University of Minnesota

#EPR Signal #Presence Of Acetic Acid + Show 8 more

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Abstract

Mechanistic studies of H2O2 activation by complexes related to [(BPMEN)Fe(II)(CH3CN)2](2+) with electron-rich pyridines revealed that a new intermediate formed in the presence of acetic acid with a 465 nm visible band can be associated with an unusual g = 2.7 EPR signal. We postulate that this chromophore is an acylperoxoiron(III) intermediate.

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