Mössbauer spectroscopy of bucky ferrocenes: Lattice dynamics and motional anisotropy of the metal atom

Rolfe H. Herber, Israel Nowik, Yutaka Matsuo, Motoki Toganoh, Yoichiro Kuninobu, Eiichi Nakamura

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Temperature-dependent 57Fe Mössbauer effect spectroscopy has been used to elucidate the metal atom dynamics in three neutral and two cationic bucky ferrocenes. For the three diamagnetic complexes Fe(C 60H5)Cp (1), Fe(C60Me5)Cp (2), and Fe(C60Ph5)Cp (3), the metal atom motion is anisotropic and the temperature dependence of the mean-square amplitude of vibration of the metal atom at a number of temperatures is reported. The Mössbauer lattice temperatures have been determined and compared to the parent ferrocene (6). The synthesis and X-ray crystal structure of 3 have been determined at 153(2) K, and the 1H and 13C NMR spectra have been recorded. The cationic complexes derived from 2 and 3 show spin-lattice relaxation. The relaxation rate appears insensitive to the nearest-neighbor environment of the metal atom in this pair.

Original languageEnglish
Pages (from-to)5629-5635
Number of pages7
JournalInorganic chemistry
Volume44
Issue number16
DOIs
Publication statusPublished - Aug 8 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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