Addition of muonium atoms to thiocarbonyl compounds is shown to result in the formation of sulfur-centered radicals (R-s; which are observed by level-crossing-resonance spectroscopy. This technique enables one to determine the proton and nitrogen hyperfine coupling constants in thiyl radicals: a tas
Muon level-crossing spectroscopy of organic free radicals
β Scribed by Paul W. Percival; Robert F. Kiefl; Syd R. Kreitzman; David M. Garner; Stephen F.J. Cox; Graeme M. Luke; Jess H. Brewer; Kuso Nishiyama; Krishnan Venkateswaran
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 510 KB
- Volume
- 133
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Muon level-crossing spectroscopy has been applied to the study of muonium-substituted radicals formed in liquid benzene, hexadeuterobenzene, furan, 2-metbylpropene, 2,3-dimethyl-2-butene, and gaseous ethene. The magnitudes and signs of the proton and deuteron hyperfine constants are reported, and are discussed in terms of isotope effects and intramolecular motion.
π SIMILAR VOLUMES
A treatment is developed for the analysis of pSR spectra of muonium-substituted free radicals detected under conditions of avoided level crossing in high longitudinal magnetic fields. Approximate analytical results are compared with those of numerical calculations, and an experimental example is pre
Analysis of the muon spin rotation (@R) data for the muonic ethyl radical CH,MucH, yields &hyperfine coupling constants in good agreement with the recent level-crossing resonance (LCR ) measurements. Other coupling constants are predicted and await confirmation by LCR. The role of hyperconjugation i