Motion of scandium ions in Sc{sub 2}C{sub 84} observed by {sub 45}Sc solution NMR

Journal Article · Thu Jun 06 04:00:00 EDT 1996 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/jp960421w· OSTI ID:263137

Miyake, Yoko; Suzuki, Shinzo; Kojima, Yasuhiko; Kikuchi, Koichi; Kobayashi, Kaoru; Nagase, Shigeru; Kainosho, Masatsune; Achiba, Yohji; Maniwa, Yutaka ^[1]; Fisher, K ^[2]

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1. Tokyo Metropolitan Univ. (Japan)
2. Univ. of New South Wales, Sydney (Australia)

We have used {sub 45}Sc solution NMR spectroscopy to show for the first time the internal motion of the scandium ions in two Sc{sub 2}C{sub 84} isomers. In one isomer the two scandium ions are equivalent over the temperature range 238-433 K, whereas in the second isomer there are two inequivalent scandium ions below 383 K. At 383 K coalescence occurs, and above that temperature the scandium ions become equivalent. The processes are reversible, and we believe this is the first time such phenomena have been observed. 27 refs., 4 figs.

• OSTI ID: 263137
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 23 Vol. 100; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
FULLERENES
ISOMERS
MOTION
NMR SPECTRA
SCANDIUM COMPOUNDS
SCANDIUM IONS
SOLUTIONS
TEMPERATURE DEPENDENCE