Correlation Effects and Molecular Tumbling in NMR Studies of Solid Beta- (CH3)4Si

Abstract

The beta phase of high purity samples of tetramethylsilane (TMS), (CH3)4Si, was investigated between 77K and its melting point (174K) employing static and rotating frame proton spin-lattice relaxation measurements. Activation energies and inverse frequency factors for both motions are derived and discussed. It is suggested that the presence of exponential proton magnitization decays in solids containing methyl groups may sometimes serve as an indication for the presence of reorientations of the molecular frame to which the methyl groups are attached.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 05, 1972
Accession Number
AD0744694

Entities

People

  • John A. Ripmeester
  • Shmuel Albert

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Laboratories
  • Continuous Waves
  • Cross Correlation
  • Energy
  • Equations
  • Frequency
  • Heat Of Activation
  • High Temperature
  • Illinois
  • Impurities
  • Low Temperature
  • Magnetization
  • Measurement
  • Melting
  • Melting Point
  • Relaxation Time
  • United States

Readers

  • Control Systems Engineering.
  • Organic Chemistry
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.