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Issue 45, 2016
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Experimental and theoretical identification of the Fe(VII) oxidation state in FeO4

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The experimentally known highest oxidation state of iron has been determined to be Fe(VI) so far. Here we report a combined matrix-isolation infrared spectroscopic and theoretical study of two interconvertible iron oxide anions: a dioxoiron peroxide complex [(η2-O2)FeO2] with a C2v-structure and a tetroxide FeO4 with a D2d tetrahedral structure, which are formed by co-condensation of laser-ablated iron atoms and electrons with O2/Ar mixtures at 4 K. Quantum chemistry theoretical studies indicate that the Jahn–Teller distorted tetroxide FeO4 anion is a d1 species with hereto the highest iron formal oxidation state Fe(VII).

Graphical abstract: Experimental and theoretical identification of the Fe(vii) oxidation state in FeO4−

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The article was received on 02 Oct 2016, accepted on 19 Oct 2016 and first published on 19 Oct 2016

Article type: Paper
DOI: 10.1039/C6CP06753K
Citation: Phys. Chem. Chem. Phys., 2016,18, 31125-31131

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    Experimental and theoretical identification of the Fe(VII) oxidation state in FeO4

    J. Lu, J. Jian, W. Huang, H. Lin, J. Li and M. Zhou, Phys. Chem. Chem. Phys., 2016, 18, 31125
    DOI: 10.1039/C6CP06753K

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