๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Two-Dimensional Multiple-Quantum MAS NMR of Quadrupolar Nuclei: A Comparison of Methods

โœ Scribed by Steven P. Brown; Stephen Wimperis

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
399 KB
Volume
128
Category
Article
ISSN
1090-7807

No coin nor oath required. For personal study only.

๐Ÿ“œ SIMILAR VOLUMES

Multiple-Quantum Cross-Polarization and
Multiple-Quantum Cross-Polarization and Two-Dimensional MQMAS NMR of Quadrupolar Nuclei
โœ Sharon E Ashbrook; Stephen Wimperis ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 187 KB

## Cross-polarization from 1 H to the multiple-quantum coherences of a quadrupolar nucleus is used in combination with the twodimensional multiple-quantum magic angle spinning (MQMAS) NMR experiment in order to extract high-resolution CPMAS NMR spectra. The technique is demonstrated on 23 Na (S โ€ซุ

Distributions of the Quadrupolar and Iso
Distributions of the Quadrupolar and Isotropic Chemical Shift Interactions in Two-Dimensional Multiple-Quantum MAS NMR Spectra
โœ Philippe R. Bodart ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 62 KB

The distributions of both the quadrupolar and the isotopic chemical shift interactions are shown to give multiple-quantum MAS spectra that remain tilted after shearing. For both types of distribution, the theoretical slopes, formed by the resulting distribution of the centers of gravity of the signa

High-Resolution NMR of Quadrupolar Nucle
High-Resolution NMR of Quadrupolar Nuclei Using Mixed Multiple-Quantum Coherences
โœ Alexej Jerschow; John W. Logan; Alexander Pines ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 73 KB

A multiple-quantum magic angle spinning (MQMAS) NMR experiment of quadrupolar nuclei is demonstrated, which uses two different multiple quantum coherences in t(1) to refocus the quadrupolar broadening. This experiment has the potential of achieving improved resolution over current techniques.