Reactivity of an All-Ferrous Iron-Nitrogen Heterocubane under Reductive and Oxidative Conditions

Crispin Lichtenberg, Demyan E. Prokopchuk, Mario Adelhardt, Liliana Viciu, Karsten Meyer, Hansjörg Grützmacher

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The reactivity of the all-ferrous FeN heterocubane [Fe4(Ntrop)4] (1) with i)Brønsted acids, ii)σ-donors, iii)σ-donors/π-acceptors, and iv)one-electron oxidants has been investigated (trop = 5H-dibenzo[a,d]cyclo-hepten-5-yl). 1 showed self-re-assembling after reactions with i) and proved surprisingly inert in reactions with ii) and iii), with the exception of CO. Reductive and oxidative cluster degradation was observed in reactions with CO and TEMPO, respectively. These reactions yielded new cluster compounds, namely a trinuclear bis(μ3-imido) 48 electron complex in the former case and a tetranuclear all ferric μ-oxo-μ-imido species in the latter case. Characterization techniques include NMR and in situ IR spectroscopy, single crystal X-ray analysis, Mössbauer spectroscopy, cyclic voltammetry, magnetic susceptibility measurements, and DFT calculations.

Original languageEnglish (US)
Pages (from-to)15797-15805
Number of pages9
JournalChemistry - A European Journal
Volume21
Issue number44
DOIs
StatePublished - Oct 1 2015
Externally publishedYes

Fingerprint

Carbon Monoxide
Nitrogen
Iron
Electrons
X ray analysis
Magnetic susceptibility
Oxidants
Discrete Fourier transforms
Cyclic voltammetry
Infrared spectroscopy
Nuclear magnetic resonance
Single crystals
Spectroscopy
Degradation
Acids
TEMPO

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

Keywords

  • cluster compounds
  • heterocubanes
  • iron
  • oxidation
  • reduction

Cite this

Lichtenberg, Crispin ; Prokopchuk, Demyan E. ; Adelhardt, Mario ; Viciu, Liliana ; Meyer, Karsten ; Grützmacher, Hansjörg. / Reactivity of an All-Ferrous Iron-Nitrogen Heterocubane under Reductive and Oxidative Conditions. In: Chemistry - A European Journal. 2015 ; Vol. 21, No. 44. pp. 15797-15805.
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Reactivity of an All-Ferrous Iron-Nitrogen Heterocubane under Reductive and Oxidative Conditions. / Lichtenberg, Crispin; Prokopchuk, Demyan E.; Adelhardt, Mario; Viciu, Liliana; Meyer, Karsten; Grützmacher, Hansjörg.

In: Chemistry - A European Journal, Vol. 21, No. 44, 01.10.2015, p. 15797-15805.

Research output: Contribution to journalArticle

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AU - Meyer, Karsten

AU - Grützmacher, Hansjörg

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