Characterization of a Paramagnetic Mononuclear Nonheme Iron-Superoxo Complex
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https://figshare.com/articles/dataset/Characterization_of_a_Paramagnetic_Mononuclear_Nonheme_Iron_Superoxo_Complex/2037408
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资源简介：
O2 bubbling into a THF solution of FeII(BDPP)
(1) at −80 °C generates a reversible bright
yellow adduct 2. Characterization by resonance Raman
and Mössbauer spectroscopy provides complementary insights
into the nature of 2. The former shows a resonance-enhanced
vibration at 1125 cm–1, which can be assigned to
the ν(O–O) of a bound superoxide, while the latter
reveals the presence of a high-spin iron(III) center that is exchange-coupled
to the superoxo ligand, like the FeIII–O2– pair found for the O2 adduct of 4-nitrocatechol-bound
homoprotocatechuate 2,3-dioxygenase. Lastly, 2 oxidizes dihydroanthracene to anthracene, supporting
the notion that FeIII–O2– species can carry out H atom abstraction from a C–H bond
to initiate the 4-electron oxidation of substrates proposed for some
nonheme iron enzymes.
创建时间：
2015-12-17
