Hyperfine Interactions

, Volume 18, Issue 1–4, pp 715–719 | Cite as

Recent results in muonium solution kinetics

  • J. M. Stadlbauer
  • B. W. Ng
  • Y. C. Jean
  • Y. Ito
  • D. C. Walker
Muonium Formation and Chemical Reactions
Received:

Abstract

Using Muonium Spin Rotation (MSR) techniques the aqueous solution kinetics of several muonium addition reactions and spin conversion interactions have been studied. The addition reactions show both diffusion and activation-controlled reaction rates with isotope effects between 1 and 3 for diffusion-control and between 7 and 31 for activation-control reactions. Barrier energies are typically ≈15 kJ/mole and ≈30 kJ/mole, respectively, for these processes in water. Spin-conversion interactions involving Ni(aq+2 and Ni(cyclam)+2 complexes showed that spin-conversion of “triplet” Mu by a paramagnetic solute occurs at or near the diffusion-controlled limit while the chemical reaction with the diamagnetic configuration of Ni(cyclam)+2 occured some 100 times slower at kM ⩽ 5×108M−1s−1.

Keywords

Thin Film Aqueous Solution Barrier Energy Recent Result Isotope Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© J.C. Baltzer AG, Scientific Publishing Company, and Yamada Science Foundation 1984

Authors and Affiliations

  • J. M. Stadlbauer
    • 1
  • B. W. Ng
    • 1
  • Y. C. Jean
    • 1
    • 2
  • Y. Ito
    • 1
    • 3
  • D. C. Walker
    • 1
  1. 1.Department of Chemistry and TRIUMFUniversity of British ColumbiaVancouverCanada
  2. 2.Department of PhysicsUniversity of Missouri-Kansas CityKansas CityUSA
  3. 3.Research Center for Nuclear Science and TechnologyUniversity of TokyoIbaraki-kenJapan

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