Muonium-substituted organic free radicals in liquids. Isomer distribution and end-of-track radiolytical processes determined from studies of cyclohexadienyl radicals derived from substituted benzenes
| Autor: | G. A. Brinkman, P. W. F. Louwrier, Emil Roduner |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Muon
Isotope Physics::Instrumentation and Detectors Chemistry Radical Muonium General Physics and Astronomy Muon spin spectroscopy Photochemistry Magnetic field Physics::Accelerator Physics Molecule Diamagnetism High Energy Physics::Experiment Physics::Atomic Physics Physics::Chemical Physics Physical and Theoretical Chemistry |
| Zdroj: | Chemical Physics. 88:143-153 |
| ISSN: | 0301-0104 |
| DOI: | 10.1016/0301-0104(84)85110-1 |
| Popis: | Muonium-substituted free radicals are observed by muon spin rotation when positive muons are stopped in liquid substituted benzenes. From muon precession frequencies in high external magnetic fields the isotropic muon-electron hyperfine coupling constants A μ are determined. 66 radicals are assigned to ortho-, meta- and para-substituted cyclohexadienyl-type radicals. Formally they are produced by addition of the light hydrogen isotope muonium to 24 mono-substituted benzenes. The distribution of muons between radicals and diamagnetic molecules is suggested to be governed by radiolytical processes near the end-of-track of the thermalizing muon. |
| Databáze: | OpenAIRE |
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