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 journalArticlepeer-review

4 Scopus citations

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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