Motion of scandium ions in Sc2C84 observed by Sc-45 solution NMR

被引：48

作者：

Miyake, Y

Suzuki, S

Kojima, Y

Kikuchi, K

Kobayashi, K

Nagase, S

Kainosho, M

Achiba, Y

Maniwa, Y

Fisher, K

机构：

[1] TOKYO METROPOLITAN UNIV,DEPT CHEM,HACHIOJI,TOKYO 19203,JAPAN

[2] TOKYO METROPOLITAN UNIV,DEPT PHYS,HACHIOJI,TOKYO 19203,JAPAN

[3] UNIV NEW S WALES,SCH CHEM,SYDNEY,NSW 2052,AUSTRALIA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 23期

关键词：

D O I：

10.1021/jp960421w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have used Sc-45 solution NMR spectroscopy to show for the first time the internal motion of the scandium ions in two Sc2C84 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.

引用

页码：9579 / 9581

页数：3

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