Quantification of MQMAS spectra of solids containing quadrupolar nuclei

被引：10

作者：

Ding, SW ^{[1
]}

McDowell, CA ^{[1
]}

机构：

[1] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 307卷 / 3-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0009-2614(99)00483-2

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：

This work presents a method that can yield quantitative multi- quantum magic-angle spinning (MQMAS) nuclear magnetic resonance (NMR) spectra by correcting experimental spectra with numerical simulations. The most important sources that cause non-quantitative MQMAS spectra are identified and can be calculated exactly. Therefore, the MQMAS spectra can be corrected with a number of intensity loss factors. Moreover, this method does not require intensive RF fields, extensive pulse optimization or high spinning speeds, etc. The effectiveness of this method is verified by treating the Na-23 MQMAS spectra of a series of sodium compounds to yield almost the X-ray site quantification. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：215 / 219

页数：5

共 33 条

[1] Z filtering in MQMAS NMR [J].

Amoureux, JP ;

Fernandez, C ;

Steuernagel, S .

JOURNAL OF MAGNETIC RESONANCE SERIES A, 1996, 123 (01) :116-118

[2] Optimized multiple-quantum magic-angle spinning NMR experiments on half-integer quadrupoles [J].

Amoureux, JP ;

Fernandez, C ;

Frydman, L .

CHEMICAL PHYSICS LETTERS, 1996, 259 (3-4) :347-355

[3] STRUCTURE INVESTIGATION ON ANHYDROUS DISODIUM HYDROGEN PHOSPHATE USING SOLID-STATE NMR AND X-RAY TECHNIQUES [J].

BALDUS, M ;

MEIER, BH ;

ERNST, RR ;

KENTGENS, APM ;

ALTENSCHILDESCHE, HMZ ;

NESPER, R .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (18) :5141-5147

[4] Triple-quantum two-dimensional Al-27 magic-angle spinning nuclear magnetic resonance spectroscopic study of aluminosilicate and aluminate crystals and glasses [J].

Baltisberger, JH ;

Xu, Z ;

Stebbins, JF ;

Wang, SH ;

Pines, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (30) :7209-7214

[5] Two-dimensional multiple-quantum MAS NMR of quadrupolar nuclei. Acquisition of the whole echo [J].

Brown, SP ;

Wimperis, S .

JOURNAL OF MAGNETIC RESONANCE, 1997, 124 (01) :279-285

[6] Two-dimensional MAS multiple-quantum NMR of quadrupolar nuclei, removal of inhomogeneous second-order broadening [J].

Brown, SP ;

Heyes, SJ ;

Wimperis, S .

JOURNAL OF MAGNETIC RESONANCE SERIES A, 1996, 119 (02) :280-284

[7] Triple-quantum Al-27 and Na-23 MAS NMR study of amphiboles [J].

Delevoye, L ;

Liu, SX ;

Welch, MD ;

Fernandez, C ;

Amoureux, JP ;

Klinowski, J .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (15) :2591-2595

[8] Multiple-quantum MAS NMR spectroscopy of spin-3/2 quadrupolar spin systems using shaped pulses spin systems using shaped pulses [J].

Ding, SW ;

McDowell, CA .

JOURNAL OF MAGNETIC RESONANCE, 1998, 135 (01) :61-69

[9] Shaped pulse excitation in multi-quantum magic-angle spinning spectroscopy of half-integer quadrupole spin systems [J].

Ding, SW ;

McDowell, CA .

CHEMICAL PHYSICS LETTERS, 1997, 270 (1-2) :81-86

[10] Complete resolution of Si-O-Si and Si-O-Al fragments in an aluminosilicate glass by O-17 multiple quantum magic angle spinning NMR spectroscopy [J].

Dirken, PJ ;

Kohn, SC ;

Smith, ME ;

vanEck, ERH .

CHEMICAL PHYSICS LETTERS, 1997, 266 (5-6) :568-574

← 1 2 3 4 →