Abstract
The radical (CH3)2 COMu has been studied in pure (CH3)2 CO and in binary aqueous systems. The value of the muon-electron hyperfine coupling constant fell sharply from 25.4 MHz to ca 22.5 MHz on the addition of low concentration of water. It then fell gradually on going to dilute solutions in water. The coupling increased with increasing temperature as expected for a positive hyperfine interaction. The results are compared with esr data for (CH3)2 COH radicals, and the solvent dependence is considered in terms of hydrogen-bonding. The mechanism of formation of these radicals is discussed in the light of reaction rates. It is concluded that their precursor cannot be muonium.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Hill, G. Allen, G. Stirling, and M.C.R. Symons, J. Chem. Soc., Faraday Trans 1,78 (1982) 2959; S.F.J. Cox, A. Hill, and R. De Renzi, J. Chem. Soc., Faraday Trans, 1,78 (1982) 2975
H. Zeldes, and R. Livingston, J. Chem. Phys.45 (1966) 1946
M.C.R. Symons, Accounts Chem. Res.14 (1981) 179
P.W. Percival, E. Roduner, and H. Fischer, Adv. in Chem. Series175 (1979) 335
E.J. Hart, in Actions Chimiques et Biologiques des Radiations (Ed. Masson et Cie, Paris, 1966)
H. Fischer, Mol. Phys.9 (1965) 149
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hill, A., Cox, S.F.J., De Renzi, R. et al. μSR Studies of 2-propanone and aqueous solutions of 2-propanone. Hyperfine Interact 19, 815–820 (1984). https://doi.org/10.1007/BF02066126
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02066126