NMR CROSS-POLARIZATION BY ADIABATIC PASSAGE THROUGH THE HARTMANN-HAHN CONDITION (APHH)

被引：240

作者：

HEDIGER, S ^{[1
]}

MEIER, BH ^{[1
]}

KURUR, ND ^{[1
]}

BODENHAUSEN, G ^{[1
]}

ERNST, RR ^{[1
]}

机构：

[1] UNIV LAUSANNE, CHIM SECT, CH-1005 LAUSANNE, SWITZERLAND

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 223卷 / 04期

关键词：

D O I：

10.1016/0009-2614(94)00470-6

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：

It is shown that the heteronuclear cross-polarization efficiency in the rotating frame can be improved by sweeping the radio-frequency amplitude adiabatically through the Hartmann-Hahn condition. The enhancement is particularly significant for strongly coupled IS spin systems with weak dipolar coupling to extraneous spins. A good approximation to an adiabatic transfer is obtained with a tangential time dependence of the radiofrequency field amplitude whereby transient oscillations are efficiently suppressed.

引用

页码：283 / 288

页数：6

共 18 条

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