Abstract
The iron oxo unit, [Fe=O]n+ is a critical intermediate in biological oxidation reactions. While its higher oxidation states are well studied, relatively little is known about the least-oxidized form [FeIII=O]+. Here, the thermally stable complex PhB(AdIm)3Fe=O has been structurally, spectroscopically, and computationally characterized as a bona fide iron(III) oxo. An unusually short Fe-O bond length is consistent with iron-oxygen multiple bond character and is supported by electronic structure calculations. The complex is thermally stable yet is able to perform hydrocarbon oxidations, facilitating both C-O bond formation and dehydrogenation reactions.
Original language | English (US) |
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Pages (from-to) | 1751-1755 |
Number of pages | 5 |
Journal | ACS Central Science |
Volume | 7 |
Issue number | 10 |
DOIs | |
State | Published - Oct 27 2021 |
Funding
We thank Prof. Liang Deng and Yiming Fan (SIOC) for an initial sample of iron starting material. Funding from the NSF is gratefully acknowledged by J.A.V.-M. and J.M.S. (CHE-1900020) and by B.M.H. (MCB-1908587). This material is also based upon work supported by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0019342 (to B.M.H.). Support for the acquisition of the Bruker Venture D8 diffractometer through the Major Scientific Research Equipment Fund from the President of Indiana University and the Office of the Vice President for Research is gratefully acknowledged. NSF’s ChemMatCARS Sector 15 is supported by the NSF Divisions of Chemistry (CHE) and Materials Research (DMR), under Grant Number CHE-1834750. Use of the Advanced Photon Source, an Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory, was supported by DOE under Contract No. DE-AC02-06CH11357.
ASJC Scopus subject areas
- General Chemical Engineering
- General Chemistry
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CCDC 2094972: Experimental Crystal Structure Determination
Valdez-Moreira, J. A. (Contributor), Beagan, D. M. (Contributor), Yang, H. (Contributor), Telser, J. (Contributor), Hoffman, B. M. (Contributor), Pink, M. (Contributor), Carta, V. (Contributor) & Smith, J. M. (Contributor), Cambridge Crystallographic Data Centre, 2021
DOI: 10.5517/ccdc.csd.cc289zrb, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc289zrb&sid=DataCite
Dataset
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CCDC 2094973: Experimental Crystal Structure Determination
Valdez-Moreira, J. A. (Contributor), Beagan, D. M. (Contributor), Yang, H. (Contributor), Telser, J. (Contributor), Hoffman, B. M. (Contributor), Pink, M. (Contributor), Carta, V. (Contributor) & Smith, J. M. (Contributor), Cambridge Crystallographic Data Centre, 2021
DOI: 10.5517/ccdc.csd.cc289zsc, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc289zsc&sid=DataCite
Dataset
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CCDC 2094974: Experimental Crystal Structure Determination
Valdez-Moreira, J. A. (Contributor), Beagan, D. M. (Contributor), Yang, H. (Contributor), Telser, J. (Contributor), Hoffman, B. M. (Contributor), Pink, M. (Contributor), Carta, V. (Contributor) & Smith, J. M. (Contributor), Cambridge Crystallographic Data Centre, 2021
DOI: 10.5517/ccdc.csd.cc289ztd, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc289ztd&sid=DataCite
Dataset