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13C hyperfine coupling constants in MuC60

✍ Scribed by Paul W. Percival; Brenda Addison-Jones; Jean-Claude Brodovitch; Feng Ji; Peter J. Horoyski; Michael L.W. Thewalt; Thomas R. Anthony

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
340 KB
Volume
245
Category
Article
ISSN
0009-2614

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✦ Synopsis

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 those calculations which predict an extended distribution of unpaired electron spin density in radical adducts of fullerenes. The hyperfine constants are consistent with published electron spin resonance results for (CD3)3CC6o, but contradict a recent report for HC6o, where a considerably smaller value is reported for the largest splitting.

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