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13C NMR relaxation time of fullerene as a function of magnetic field

✍ Scribed by D. Canet; J.B. Robert; P. Tekely

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 331 KB
Volume: 212
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)87233-s

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✦ Synopsis

The 13C spin-lattice relaxation time of C6* in carbon disultide was measured at four different frequencies, 50.288, 75.432, 100.576 and 150.864 MHz. A good linear lit of T-' as a function of B,$ is obtained. The small value of the intercept T I' at B=O equal to 3.5 I x 10m4 s-l shows that the chemical shift anisotropy is the dominant term to the relaxation rate over all the frequency range considered. The correlation time r, ( 16 ps) obtained shows that the CW motion may be described through the Stokes-Einstein-Debye model.

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