Chapter 63. Investigation of the Longitudinal Relaxation Time T1 of Silanes

  1. Prof. Norbert Auner2 and
  2. Prof. Johann Weis3
  1. Christina Notheis,
  2. Erica Brendler and
  3. Berthold Thomas

Published Online: 28 APR 2008

DOI: 10.1002/9783527619917.ch63

Organosilicon Chemistry IV: From Molecules to Materials

Organosilicon Chemistry IV: From Molecules to Materials

How to Cite

Notheis, C., Brendler, E. and Thomas, B. (2000) Investigation of the Longitudinal Relaxation Time T1 of Silanes, in Organosilicon Chemistry IV: From Molecules to Materials (eds N. Auner and J. Weis), Wiley-VCH Verlag GmbH, Weinheim, Germany. doi: 10.1002/9783527619917.ch63

Editor Information

  1. 2

    Inst. für Anorganische Chemie, der Universität Frankfurt, Marie-Curie-Strasse 11, D-60439 Frankfurt am Main, Germany, Phone: 0 69/7 98-29180, -29591, Fax: 069/798-29188

  2. 3

    Wacker-Chemie GmbH, Geschäftsbereich S, Werk Burghausen, Johannes-Hess-Strasse 24, D-84489 Burghausen, Germany

Author Information

  1. Institut für Analytische Chemie Technische Universität Bergakademie Freiberg Leipziger Str. 29, 09596 Freiberg, Germany Tel.: Int. code + (3731)39 2266—Fax: Int. code + (3731)39 3666

Publication History

  1. Published Online: 28 APR 2008
  2. Published Print: 17 JAN 2000

ISBN Information

Print ISBN: 9783527298549

Online ISBN: 9783527619917

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Keywords:

  • T1 relaxation time;
  • NOE enhancement factors;
  • silanes

Summary

T1 relaxation times of different disilanes and higher silanes have been measured. A qualitative description of the different contributions to T1 is given. For a sample containing Ph4Si2Me2, Ph5Si3Me3 and Ph6Si4Me4 temperature and magnetic field dependent spectra were recorded to separate the shares of the different relaxation mechanisms. NOE enhancement factors were determined, too. Dipole-dipole interactions contribute the most important share, but spin rotation interactions are up to 25 % of the total relaxation and must not been neglected. Other mechanisms seem to be of no importance in that system.