Probing through bond connectivities with MQMAS NMR

被引：49
|
作者：
Wiench, JW [1 ]
Pruski, M [1 ]
机构：
[1] Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
来源：
SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2004年 / 26卷 / 01期
关键词：
Al-27-P-31; HETCOR; MQMAS; quadrupolar nucleic; MQ-J-HETCOR; J coupling; INEPT; aluminophosphate;
D O I：
10.1016/j.ssnmr.2003.10.004
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：
Polarization transfer from quadrupolar (Al-27) to spin-1/2 (P-31) nuclei via J-coupling is employed to measure two-dimensional (27)A -P-13 heteronuclear correlation spectra with isotropic resolution. The proposed experiment, MQ-J-HETCOR, uses multiple quantum magic angle spinning (MQMAS) NMR for elimination of the second-order quadrupolar broadening and INEPT, INEPTR. INEPT+ and DEPT sequences for the polarization transfer. The experimental conditions leading to best sensitivity and resolution are detailed using AIPO(4)-14 as a test sample. Published by Elsevier Inc.
引用
收藏
页码：51 / 55
页数：5
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