Zobrazeno 1 - 10
of 58
pro vyhledávání: '"T. Asthalter"'
Publikováno v:
Hyperfine Interactions. 237
Nuclear inelastic scattering (NIS) of synchrotron radiation, also known as nuclear resonant vibrational spectroscopy (NRVS), has been shown to provide valuable insights into metal-centered vibrations at Mossbauer-active nuclei. We present a study of
Publikováno v:
The Journal of Physical Chemistry A. 112:11514-11518
We present a study of the metal-centered vibrations in the first step of the Fe(III)-catalyzed Michael reaction. Nuclear inelastic scattering of synchrotron radiation was carried out on a shock-frozen solution of FeCl3.6H2O in 2-oxocyclopentane ethyl
Publikováno v:
Journal of Physics and Chemistry of Solids. 67:1416-1422
The low- and high-temperature phases of octamethyl ferrocene were studied in detail, using high-resolution X-ray powder diffraction, differential scanning calorimetry and nuclear resonant scattering, in particular the novel technique of synchrotron r
Publikováno v:
Journal of Physics and Chemistry of Solids. 66:2271-2276
Nuclear resonant scattering techniques can be used to study both fast and slow dynamics of Mossbauer nuclei. The influence of rotational dynamics in molecular systems is studied applying three types of scattering techniques: (1) Synchrotron radiation
Publikováno v:
The European Physical Journal E. 12:9-12
We have applied nuclear inelastic absorption (NIA) to the molecular glass former dibutyl phthalate/ferrocene, both in bulk and in nanoporous matrices having pore sizes of 50 and 25 A. The quantity g(E)/E2, where g(E) is the vibrational density of sta
Publikováno v:
Journal of Physics and Chemistry of Solids. 64:677-684
The onset of dynamics and the structural changes of octamethyl–ethinyl-ferrocene around a solid–solid phase transition at 248 K have been investigated using the novel technique of quasielastic nuclear forward scattering (QNFS) in a temperature ra
Publikováno v:
Hyperfine Interactions. :131-134
The present status of the new nuclear resonance beamline PETRA 1 at HASYLAB, DESY, Hamburg is described. Besides an overview of the experimental setup some examples of recent experiments are given. Those cover the main applications, i.e., inelastic s
Publikováno v:
Journal of Organometallic Chemistry. 642:203-207
Temperature dependent 57 Fe Mossbauer effect measurements of octamethylferrocenylmethanol, using 57 Fe enriched samples, have been carried out over the temperature range 90≤ T ≤320 K, and analyzed to elucidate the dynamics of the metal atom motio
Autor:
T. Asthalter, Ilya Sergueev, Rudolf Rüffer, P. Härter, A. Huwe, H. Franz, K. Messel, Winfried Petry
Publikováno v:
The European Physical Journal B. 22:301-306
The microscopic dynamics of dibutylphthalate/ferrocene in nanoporous silica matrices with pore sizes of 25, 50, 75, and 200 A, respectively, has been investigated in a temperature range between 70 and 200 K by nuclear resonant scattering of synchrotr
Autor:
U. van Bürck, P. Härter, Peter Behrens, Ilya Sergueev, T. Asthalter, J. Kornatowski, F. E. Wagner, Stefan Klingelhöfer
Publikováno v:
Journal of Physics: Conference Series 217 (2010), Nr. 1
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 pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::237050c686aee4a8917805823f6e09e3
http://www.repo.uni-hannover.de/handle/123456789/1446
http://www.repo.uni-hannover.de/handle/123456789/1446