Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 95, Pages 13339-13342Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc07294a
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Funding
- NIGMS NIH HHS [R01 GM111097, R01 GM065313, R15 GM114787] Funding Source: Medline
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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 Mossbauer spectra at 80 K and infrared spectra at room temperature, and the backbonding into the N-2 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.
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