13C hyperfine coupling constants of the MuC6o radical have been measured by muon level-crossing spectroscopy, using a dilute solution of 99% enriched ~3C6o in decalin. The signs as well as the magnitudes of the hyperfine constants were determined. The results range from 52.6 to -25.4 MHz and support
HC60: photochemical formation mechanism and 13C hyperfine coupling constants
โ Scribed by Regina Klemt; Emil Roduner; Hanns Fischer
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 633 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The EPR signal intensity of photochemically formed HCm depends on the oxidation potential of other radicals involved, suggesting that HCa is formed by reduction of Cm followed by protonation. The 13C hyperfine couplings of forty carbons are resolved, demonstrating that the electron spin is distributed over much of the fullerene surface.
๐ SIMILAR VOLUMES
The 13 C hyperfine constants of the H 13 CS and HS 13 C radicals are determined by microwave spectroscopy. For H 13 CS, the 1 01 -0 00 rotational transition is measured at 38.5 GHz with a Fourier transform microwave spectrometer, and two 13 C hyperfine constants are determined. They are well interpr