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  Decay of single and double quantum coherences in deuterated glassy ortho-terphenyl

Kircher, O., Diezemann, G., Böhmer, R., Hinze, G., Schug, K. U., Sillescu, H., et al. (1998). Decay of single and double quantum coherences in deuterated glassy ortho-terphenyl. The Journal of Chemical Physics, 108(20), 8550-8556. doi:10.1063/1.476284.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-9DB3-D Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-9DB4-B
Genre: Journal Article
Alternative Title : Decay of single and double quantum coherences in deuterated glassy ortho-terphenyl

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JChemPhys_108_1998_8550.pdf (Any fulltext), 147KB
 
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 Creators:
Kircher, Oliver, Author
Diezemann, Gregor, Author
Böhmer, Roland, Author
Hinze, Gerald, Author
Schug, Kai Uwe, Author
Sillescu, Hans, Author
Zimmermann, Herbert1, 2, Author           
Affiliations:
1Department of Molecular Physics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497705              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

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 Abstract: he decay of single and double quantum coherences in amorphous ortho-terphenyl is studied by means of deuteron NMR echo experiments near and below the calorimetric glass transition temperature Tg. In perdeuterated samples a Gaussian decay for these coherences is found at low temperatures, in accord with theoretical predictions for random local dipolar fields. A method is proposed to extract information about slow motional processes from ordinary solid echo experiments below Tg. Partly deuterated ortho-terphenyl does not show a Gaussian decay. Simple model calculations show that this observation indicates the importance of correlations of the local dipolar fields in the presence of protons.

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Language(s): eng - English
 Dates: 1997-11-241998-02-201998-05-22
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 666648
DOI: 10.1063/1.476284
URI: http://scitation.aip.org/content/aip/journal/jcp/108/20/10.1063/1.476284
Other: 4297
 Degree: -

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Title: The Journal of Chemical Physics
  Other : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: - Volume / Issue: 108 (20) Sequence Number: - Start / End Page: 8550 - 8556 Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226