Liquid phase nitrogen endor in nitroxide radicals

被引:44
作者
Leniart, D. S. [1 ]
Vedrine, J. C. [1 ]
Hyde, J. S. [1 ]
机构
[1] Inst Rech Catalyse, CNRS, F-69 Villeurbanne, France
关键词
D O I
10.1016/0009-2614(70)85246-0
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
Electron-nuclear double resonance (ENDOR) signals have been observed from nitrogen nuclei of several nitroxide radicals in the liquid phase: The rf enhancement factor. which increases the effective radio frequency field at the nucleus by a factor of 21 in the present case, makes these observations Possible. Cross relaxation, arising from non-secular terms of the dipolar spectral density, is the dominant Delta m(1) approximate to 1 relaxation mechanism. The data are sufficiently precise that dynamic second order shifts of the observed ENDOR transitions must be considered.
引用
收藏
页码:637 / 640
页数:4
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