Issue 95, 2018

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

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

Supplementary files

Article information

Article type
Communication
Submitted
07 ⵛⵓⵜ 2018
Accepted
30 ⴽⵜⵓ 2018
First published
07 ⵏⵓⵡ 2018

Chem. Commun., 2018,54, 13339-13342

Author version available

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, 54, 13339 DOI: 10.1039/C8CC07294A

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