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  Dynamics of the Stable Radical Di-tert-butyl Nitroxide on an Epitaxially Grown Al2O3 Film

Katter, U. J., Hill, T., Risse, T., Schlienz, H., Beckendorf, M., Klüner, T., et al. (1997). Dynamics of the Stable Radical Di-tert-butyl Nitroxide on an Epitaxially Grown Al2O3 Film. The Journal of Physical Chemistry B, 101(19), 3776-3780. doi:10.1021/jp963104y.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-C784-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-D70A-B
Genre: Journal Article

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 Creators:
Katter, U. J.1, Author
Hill, T.1, Author
Risse, T.1, Author
Schlienz, H.1, Author
Beckendorf, M.1, Author
Klüner, T.1, Author
Hamann, H.1, Author
Freund, Hans-Joachim1, 2, Author           
Affiliations:
1Ruhr-Universität Bochum, Lehrstuhl für Physikalische Chemie 1, ou_persistent22              
2Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: The molecular dynamics of one monolayer adsorption species of di-tert-butyl nitroxide (DTBN) adsorbed on a thin film of γ-Al2O3(111) grown on a NiAl(110) single crystal has been studied via ESR line-shape analysis. Below 200 K a rigid limit spectrum is found, above this temperature the changes in line shape are consistent with slow motions of the molecule. Best agreement between the experimental spectra and simulations is obtained using a “moderate jump” model with both Brownian diffusion and jump type contributions to the molecular dynamics. The motional processes have an activation energy of about 9 kJ/mol.

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Language(s): eng - English
 Dates: 1997-01-211996-10-091997-05-081997-05-01
 Publication Status: Issued
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jp963104y
 Degree: -

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Title: The Journal of Physical Chemistry B
  Abbreviation : J. Phys. Chem. B
Source Genre: Journal
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Affiliations:
Publ. Info: Washington, D.C. : American Chemical Society
Pages: 5 Volume / Issue: 101 (19) Sequence Number: - Start / End Page: 3776 - 3780 Identifier: ISSN: 1520-6106
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000293370_1