Published April 4, 2011 | Version public
Journal Article

Transformation of an [Fe(η^2-N_2H_3)]^+ Species to π-Delocalized [Fe_2(μ-N_2H_2)]^(2+/+) Complexes

  • 1. ROR icon California Institute of Technology
  • 2. ROR icon Massachusetts Institute of Technology
  • 3. ROR icon Northwestern University

Abstract

A monomeric Fe(η^2-N_2H_3) species has been prepared, and exposure to oxygen yields a diiron complex that features five-coordinate iron centers and an activated bridging diazene ligand (see picture; C gray, N blue, Fe black, P red, O green). Structural, theoretical, and spectroscopic data for the redox pair [Fe_2(μ-N_2H_2)]^(2+/+) are consistent with 4-center, 4-electron π-delocalized bonding across the Fe-NH-NH-Fe core that finds analogy in butadiene and the butadiene anion.

Additional Information

© 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received: October 7, 2010; Revised: November 30, 2010. We acknowledge the NIH (GM-070757, J.C.P.; HL 13531, B.M.H.) and the NSF (MCB0723330, B.M.H.). Funding for the Caltech NMR facility has been provided in part by the NIH (RR 027690) and funding for the MIT Department of Chemistry Instrumentation Facility has been provided in part by the NSF (CHE-0234877). The Betty and Gordon Moore Foundation supports the Molecular Observatory at Caltech. C.T.S. is grateful for an NSF graduate fellowship. Alec Durrell and Jens Kaiser provided guidance for resonance Raman and XRD experiments, respectively.

Additional details

Identifiers

Eprint ID
23236
Resolver ID
CaltechAUTHORS:20110404-112857625

Funding

NIH
GM-070757
NIH
HL 13531
NSF
MCB0723330
NSF Graduate Fellowship Program

Dates

Created
2011-04-12
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field