Broadband dipolar recoupling in rotating solids: a numerical comparison of some pulse schemes

被引：41

作者：

Baldus, M ^{[1
]}

Geurts, DG ^{[1
]}

Meier, BH ^{[1
]}

机构：

[1] Univ Nijmegen, Chem Phys Lab, NSR, Ctr Mol Struct Design & Synth, NL-6525 ED Nijmegen, Netherlands

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1998年 / 11卷 / 3-4期

关键词：

recoupling; magic angle spinning; pulse sequences; numerical simulations; polarization transfer; correlation spectroscopy;

D O I：

10.1016/S0926-2040(98)00036-8

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：

A numerical comparison of the dipolar recoupling performance of several previously published homonuclear recoupling schemes under magic angle-spinning conditions is presented. Emphasis is put on the recoupled polarization transfer in a two-spin system where the efficiency is studied as a function of resonance offsets in the presence and absence of chemical-shielding anisotropies. In addition, the effect of the rf field strength is investigated. Powder pattern line shapes are shown in the on-resonance case that reveal the distribution of dipolar couplings for each recoupling scheme. These results are compared to data computed with a purposely misset rf field strength to estimate the pulse scheme sensitivity to rf-inhomogeneity and experimental missettings. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：157 / 168

页数：12

共 28 条

[1] NUCLEAR MAGNETIC RESONANCE SPECTRA FROM A CRYSTAL ROTATED AT HIGH SPEED [J].