Communication

A Synthetic High-Spin Oxoiron(IV) Complex: Generation, Spectroscopic Characterization, and Reactivity†

  1. Jason England Dr.2,
  2. Marlène Martinho Dr.1,
  3. Erik R. Farquhar2,
  4. Jonathan R. Frisch2,
  5. Emile L. Bominaar Prof. Dr.1,
  6. Eckard Münck Prof. Dr.1,
  7. Lawrence Que Jr. Prof. Dr.2

Article first published online: 16 APR 2009

DOI: 10.1002/anie.200900863

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 48, Issue 20, pages 3622–3626, May 4, 2009

Additional Information

How to Cite

England, J., Martinho, M., Farquhar, Erik R., Frisch, Jonathan R., Bominaar, Emile L., Münck, E. and Que, L. (2009), A Synthetic High-Spin Oxoiron(IV) Complex: Generation, Spectroscopic Characterization, and Reactivity. Angew. Chem. Int. Ed., 48: 3622–3626. doi: 10.1002/anie.200900863

Author Information

  1. 1

    Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213 (USA)

  2. 2

    Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455 (USA), Fax: (+1) 612-624-7029

  1. †

    This work was supported by grants from the NIH (GM-33162 to L.Q. and EB-001475 to E.M.) and the NSF (CHE070073 to E.L.B. through TeraGrid resources provided by the NCSA). X-ray crystallographic data collection and structure elucidation were performed by Dr. Victor G. Young, Jr. at the X-Ray Crystallographic Laboratory, Department of Chemistry, University of Minnesota. XAS data were collected on beamline X3B at the National Synchrotron Radiation Light Source and beamline 7-3 at the Stanford Synchrotron Lightsource, both of which are supported by the U.S. DOE and NIH.

Publication History

  1. Issue published online: 28 APR 2009
  2. Article first published online: 16 APR 2009
  3. Manuscript Received: 13 FEB 2009

Funded by

  • NIH. Grant Numbers: GM-33162, EB-001475
  • NSF. Grant Number: CHE070073

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Keywords:

  • bioinorganic chemistry;
  • enzyme models;
  • high-valent compounds;
  • iron;
  • nonheme iron complexes

Abstract

Thumbnail image of graphical abstract

High versus low: The high-yield generation of a synthetic high-spin oxoiron(IV) complex, [FeIV(O)(TMG3tren)]2+ (see picture, TMG3tren = 1,1,1-tris{2-[N2-(1,1,3,3-tetramethylguanidino)]ethyl}amine), has been achieved by using the very bulky tetradentate TMG3tren ligand, in order to both sterically protect the oxoiron(IV) moiety and enforce a trigonal bipyramidal geometry at the iron center, for which an S=2 ground state is favored.

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