Proton magnetic resonance in Sr(NH3)6: Evidence for rapid ammonia diffusion

T. R. White, W. S. Glaunsinger, D. A. Gordon, R. F. Marzke

Research output: Contribution to journalArticle

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Abstract

The proton magnetic resonance linewidth in Sr(NH3)6 has been measured in the range 40-300 K. Two line-narrowing transitions have been detected as the temperature is increased. Between 40 and 54 K the linewidth decreases from about 2 to 1.6 G, and in the range 97-140 K the line narrows from about 1.6 G to 15 mG. The results are interpreted in terms of proton tunneling at low temperatures, a transition from tunneling to classical rotation of ammonia molecules between 40 and 54 K, and an ammonia diffusional transition with an activation energy of about 3 kcal/mole in the range 97-140 K.

Original languageEnglish (US)
Pages (from-to)578-582
Number of pages5
JournalChemical Physics Letters
Volume53
Issue number3
DOIs
StatePublished - Feb 1 1978

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proton magnetic resonance
Ammonia
Linewidth
ammonia
Nuclear magnetic resonance
Protons
Activation energy
Temperature
Molecules
activation energy
protons
molecules
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

Proton magnetic resonance in Sr(NH3)6 : Evidence for rapid ammonia diffusion. / White, T. R.; Glaunsinger, W. S.; Gordon, D. A.; Marzke, R. F.

In: Chemical Physics Letters, Vol. 53, No. 3, 01.02.1978, p. 578-582.

Research output: Contribution to journalArticle

White, T. R. ; Glaunsinger, W. S. ; Gordon, D. A. ; Marzke, R. F. / Proton magnetic resonance in Sr(NH3)6 : Evidence for rapid ammonia diffusion. In: Chemical Physics Letters. 1978 ; Vol. 53, No. 3. pp. 578-582.
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