𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Two-Dimensional Isotropic NMR of Quadrupole Nuclei in Solids

✍ Scribed by Ago Samoson


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
106 KB
Volume
121
Category
Article
ISSN
1064-1858

No coin nor oath required. For personal study only.

✦ Synopsis


A recent demonstration of multiquantum NMR of quadru-with conventional quadrupole-interaction parameters (5), and n L is the Larmor frequency. pole nuclei in solids leads to new interesting possibilities in analytical spectroscopy. One-dimensional high-resolution

The anisotropic term can assume values approximately equal to the isotropic term ( 6) and depends on the fourth-spectra without any anisotropic second-or fourth-rank line broadening were recorded, using a sample spinning about order spherical-harmonic functions R 40 of the particular orientation of the atomic environment as a single constant angle with the magnetic field (1). The suppression of the second anisotropic component was effectively achieved by implementation of a parametric evolution time. The same averaging effect can be achieved in real time D Γ… 70 560


πŸ“œ SIMILAR VOLUMES


A simple procedure for the determination
✍ GΓΌnter Engelhardt; Hubert Koller πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 English βš– 410 KB

## Abstract A simple procedure is presented for the determination of the asymmetry parameter of the electric field gradient, the quadrupole coupling constant, the second‐order quadrupolar shift and the isotropic chemical shift of quadrupolar nuclei with half‐integer spin directly from the experimen

Multiple-Quantum Cross-Polarization and
✍ Sharon E Ashbrook; Stephen Wimperis πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 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 ‫؍

Dual Processing of Two-Dimensional Excha
✍ Robert Tycko; Alan E. Berger πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 105 KB

We discuss procedures for processing data in rotor-synchronized two-dimensional magic angle spinning (2D MAS) NMR exchange measurements for both structural and dynamical studies. We show, both mathematically and experimentally, that there are two distinct data processing procedures that lead to 2D M