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

Sean F. McWilliams; Philip C. Bunting; Venkatesan Kathiresan; Brandon Q. Mercado; Brian M. Hoffman; Jeffrey R. Long; Patrick L. Holland

doi:10.1039/c8cc07294a

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

Sean F. McWilliams, Philip C. Bunting, Venkatesan Kathiresan, Brandon Q. Mercado, Brian M. Hoffman, Jeffrey R. Long, Patrick L. Holland^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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.

Original language	English (US)
Pages (from-to)	13339-13342
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	95
DOIs	https://doi.org/10.1039/c8cc07294a
State	Published - 2018

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1039/c8cc07294a

Fingerprint Dive into the research topics of 'Isolation and characterization of a high-spin mixed-valent iron dinitrogen complex'. Together they form a unique fingerprint.

Cite this

@article{bd1265912a094cd0a8ab62e5c14351ba,

title = "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 M{\"o}ssbauer 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.",

author = "McWilliams, {Sean F.} and Bunting, {Philip C.} and Venkatesan Kathiresan and Mercado, {Brandon Q.} and Hoffman, {Brian M.} and Long, {Jeffrey R.} and Holland, {Patrick L.}",

year = "2018",

doi = "10.1039/c8cc07294a",

language = "English (US)",

volume = "54",

pages = "13339--13342",

journal = "Chemical Communications",

issn = "1359-7345",

number = "95",

}

TY - JOUR

T1 - Isolation and characterization of a high-spin mixed-valent iron dinitrogen complex

AU - McWilliams, Sean F.

AU - Bunting, Philip C.

AU - Kathiresan, Venkatesan

AU - Mercado, Brandon Q.

AU - Hoffman, Brian M.

AU - Long, Jeffrey R.

AU - Holland, Patrick L.

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85057153497&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057153497&partnerID=8YFLogxK

U2 - 10.1039/c8cc07294a

DO - 10.1039/c8cc07294a

M3 - Article

C2 - 30403226

AN - SCOPUS:85057153497

VL - 54

SP - 13339

EP - 13342

JO - Chemical Communications

JF - Chemical Communications

SN - 1359-7345

IS - 95

ER -