Theoretical and experimental study of quadrupolar echoes for half-integer spins in static solid-state NMR

被引：61

作者：

Bodart, PR ^{[1
]}

Amoureux, JP ^{[1
]}

Dumazy, Y ^{[1
]}

Lefort, R ^{[1
]}

机构：

[1] Univ Sci & Technol Lille, F-59655 Villeneuve Dascq, France

来源：

MOLECULAR PHYSICS | 2000年 / 98卷 / 19期

关键词：

D O I：

10.1080/00268970009483360

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：

Numerical simulations of powder spectra produced by a two-pulse sequence applied to a quadrupolar nuclei system of half-integer spin number make it possible to propose simple experimental instructions to record static echo spectra with minimum lineshape distortion. Calculations take into account quadrupolar (first and second orders), shielding, scalar and inhomogeneous dipolar interactions as well as the radiofrequency pulse specifications (strength, duration, phase). The suggested instructions have been checked experimentally in different cases: for a large spin number system with (LiNbO3)-Nb-93, when two interactions are present with a Cu-63/65 complex, and in the two-site system of (Rb2SO4)-Rb-87.

引用

页码：1545 / 1551

页数：7

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