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Originalpublikation
Asthalter, T.; Sergueev, I.; Van Bürck, U.; Wagner, F.E.; Härter, P. et al.: Dynamics of ferrocene in molecular sieves probed by Mossbauer spectroscopy and nuclear resonant scattering. In: Journal of Physics: Conference Series 217 (2010), Nr. 1, 12143. DOI: https://doi.org/10.1088/1742-6596/217/1/012143
Version im Repositorium
Zum Zitieren der Version im Repositorium verwenden Sie bitte diesen DOI:
https://doi.org/10.15488/1421
| Zusammenfassung: | |
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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.
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| Lizenzbestimmungen: | CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/ |
| Publikationstyp: | Article |
| Publikationsstatus: | publishedVersion |
| Erstveröffentlichung: | 2010 |
| Schlagwörter (englisch): | Bulk melting temperatures, Experimental data, Ferrocenes, Molecular axis, Nuclear forward scattering, Nuclear resonant scattering, Opening angle, Perturbed angular correlation, Rotational dynamics, Slow dynamics, Ssbauer spectroscopy, Theoretical models, Anisotropy, Fluorescence, Iron compounds, Molecular sieves, Mossbauer spectroscopy, Photons, Quantum theory, Radiation, Sieves, Single crystals, Forward scattering |
| Fachliche Zuordnung (DDC): | 530 | Physik |
| Kontrollierte Schlagwörter: | Konferenzschrift |
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