Metal atom dynamics in organometallics: Cyano ferrocenes

Rolfe H. Herber, Israel Nowik, Jeff Grosland, Ryan G. Hadt, Victor N. Nemykin

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25 Scopus citations


Six structurally related cyano ferrocenes have been examined by temperature-dependent Mössbauer effect spectroscopy (MES) to yield information concerning the isomeric shift (IS), quadrupole splitting (QS), and related parameters characterizing the iron atom in these compounds. The IS is related to the s-electron density at the Fe nucleus, while the QS is related to the symmetry and magnitude of the electrostatic field. In addition, these data can yield information related to the dynamics of the metal atom and are in excellent agreement with X-ray crystal data. Density functional theory (DFT) calculations have been used to obtain values for the three principal components of the electric field gradient tensor as well as the electron density at the metal atom site. The results of the DFT calculations and the MES data are found to be in exceptionally good agreement in these compounds.

Original languageEnglish (US)
Pages (from-to)1850-1856
Number of pages7
JournalJournal of Organometallic Chemistry
Issue number10
StatePublished - May 1 2008

Bibliographical note

Funding Information:
Generous support from the Research Corporation (Cottrell College Science Award CC6766, University of Minnesota Grant-in-Aid (Grant 20209) and Minnesota Supercomputing Institute to VN, as well as University of Minnesota Duluth Undergraduate Research Opportunity Grants to J.G. and RH (U. of M.) are greatly appreciated. Appendix A


  • Cyano ferrocenes
  • DFT calculations
  • Mössbauer spectroscopy


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