NMR study of ferrocene, ruthenocene, and titanocene dichloride

C. H. Holm*, James A. Ibers

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


The line widths of the proton magnetic resonance absorption spectra and the spin-lattice relaxation times for polycrystalline samples of ferrocene, ruthenocene, and titanocene dichloride were measured as functions of temperature, and are interpreted in terms of reorientation of the cyclopentadienyl rings about their fivefold axes. At low temperatures such reorientation is interpretable in terms of an activated process governed by a single correlation time, and the barrier restricting reorientation is obtained. At higher temperatures for these substances, as well as for benzene, such an interpretation is not suitable, and a hypothesis involving the coupling and uncoupling of adjacent rings taking part in réorientation is proposed to account for the data.

Original languageEnglish (US)
Pages (from-to)885-888
Number of pages4
JournalThe Journal of Chemical Physics
Issue number4
StatePublished - 1959

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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