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Isolation and characterization of a high-spin mixed-valent iron dinitrogen complex

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Abstract

We report a rare example of a mixed-valence iron compound with an FeNNFe core, which gives insight into the structural, spectroscopic, and magnetic influences of single-electron reductions and oxidations. In the new compound, the odd electron is localized as judged from Mössbauer spectra at 80 K and infrared spectra at room temperature, and the backbonding into the N2 unit is intermediate between diiron(I) and diiron(0) congeners. Magnetic susceptibility and relaxation studies on the series of FeNNFe compounds show significant magnetic anisotropy, but through-barrier pathways enable fairly rapid magnetic relaxation.

Graphical abstract: Isolation and characterization of a high-spin mixed-valent iron dinitrogen complex

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Publication details

The article was received on 07 Sep 2018, accepted on 30 Oct 2018 and first published on 07 Nov 2018


Article type: Communication
DOI: 10.1039/C8CC07294A
Citation: Chem. Commun., 2018, Advance Article
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    Isolation and characterization of a high-spin mixed-valent iron dinitrogen complex

    S. F. McWilliams, P. C. Bunting, V. Kathiresan, B. Q. Mercado, B. M. Hoffman, J. R. Long and P. L. Holland, Chem. Commun., 2018, Advance Article , DOI: 10.1039/C8CC07294A

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