• Medientyp: E-Artikel; Sonstige Veröffentlichung
  • Titel: Dynamics of ferrocene in molecular sieves probed by Mossbauer spectroscopy and nuclear resonant scattering
  • Beteiligte: Asthalter, T. [VerfasserIn]; Sergueev, I. [VerfasserIn]; Van Bürck, U. [VerfasserIn]; Wagner, F.E. [VerfasserIn]; Härter, P. [VerfasserIn]; Kornatowski, J. [VerfasserIn]; Klingelhöfer, S. [VerfasserIn]; Behrens, Peter [VerfasserIn]
  • Erschienen: Bristol : IOP Publishing Ltd., 2010
  • Erschienen in: Journal of Physics: Conference Series 217 (2010), Nr. 1
  • Ausgabe: published Version
  • Sprache: Englisch
  • DOI: https://doi.org/10.15488/1421; https://doi.org/10.1088/1742-6596/217/1/012143
  • ISSN: 1742-6588
  • Schlagwörter: Nuclear resonant scattering ; Theoretical models ; Iron compounds ; Radiation ; Single crystals ; Perturbed angular correlation ; Rotational dynamics ; Ferrocenes ; Nuclear forward scattering ; Mossbauer spectroscopy ; Sieves ; Photons ; Molecular axis ; Ssbauer spectroscopy ; Fluorescence ; Molecular sieves ; Konferenzschrift ; Forward scattering ; Anisotropy ; Quantum theory ; Opening angle ; Slow dynamics ; Experimental data ; Bulk melting temperatures
  • Entstehung:
  • Anmerkungen: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Beschreibung: A detailed study on the slow dynamics of ferrocene in the unidimensional channels of the molecular sieves SSZ-24 and AlPO4-5 has been carried out, using Mössbauer spectroscopy (MS), nuclear forward scattering (NFS) and synchrotron radiation-based perturbed angular correlations (SRPAC). In both host systems, anisotropic rotational dynamics is observed above 100 K. For SSZ-24, this anisotropy persists even above the bulk melting temperature of ferrocene. Various theoretical models are exploited for the study of anisotropic discrete jump rotations for the first time. The experimental data can be described fairly well by a jump model that involves reorientations of the molecular axis on a cone mantle with an opening angle dependant on temperature.
  • Zugangsstatus: Freier Zugang
  • Rechte-/Nutzungshinweise: Namensnennung (CC BY)