1H NMR study of the reversible cis / trans isomerization of {(μ-CH2)(μ-CO)[η5-C5H5Fe(CO)]2}

María Inés Altbach, César A. Muedas, Richard P. Korswagen, Manfred L. Ziegler

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The cis / trans isomerization of the bridging methylene complex {(μ-CH2)(μ-CO)[η5-C5H5-Fe(CO)]2} was studied in solution by 1H NMR spectrometry, using solvents with different polarities (acetone-d6, chloroform-d1 and benzene-d6). Equilibrium constants and rate constants for the forward and reverse steps were measured between 278 and 323 k. Both reactions show first-order kinetics. A possible mechanism for the isomerization is proposed, involving the breaking of a FeFe bond in the rate-determining step.

Original languageEnglish (US)
Pages (from-to)375-383
Number of pages9
JournalJournal of Organometallic Chemistry
Issue number3
StatePublished - Jun 3 1986

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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