Rotational frequencies of methyl group tunneling

被引：18

作者：

Barlow, M. J. ^{[1
]}

Clough, S. ^{[1
]}

Horsewill, A. J. ^{[1
]}

Mohammed, M. A. ^{[1
]}

机构：

[1] Univ Nottingham, Dept Phys, Nottingham NG7 2RD, England

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1992年 / 1卷 / 04期

关键词：

methyl; tunneling; rotation; resonance; relaxation;

D O I：

10.1016/S0926-2040(10)80004-9

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：

Methyl tunnel frequencies, measured at 4 K, are found to be 455 +/- 8 kHz in methyl rnalonamide and 496 +/- 8 kHz in methyl ethyl ketone. The first is unaffected by deuteration of the amide groups. Measurements of the temperature dependence of the spin lattice relaxation time are also reported for methyl malonamide and a further test is made of a previously reported correlation between tunnel frequency and the temperature of the T-t minimum. The measurements are in good agreement with the universal correlation curve.

引用

页码：197 / 204

页数：8

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