ASPECTS OF THE CHARACTERIZATION OF CLOVERITE BY SOLID-STATE NMR TECHNIQUES

被引：14
|
作者：
ZIBROWIUS, B
ANDERSON, MW
SCHMIDT, W
SCHUTH, FF
ALIEV, AE
HARRIS, KDM
机构：
[1] UMIST,DEPT CHEM,MANCHESTER,LANCS,ENGLAND
[2] UNIV MAINZ,INST ANORGAN CHEM & ANALYT CHEM,MAINZ,GERMANY
[3] UNIV ST ANDREWS,DEPT CHEM,ST ANDREWS KY16 9ST,FIFE,SCOTLAND
来源：
ZEOLITES | 1993年 / 13卷 / 08期
关键词：
GALLOPHOSPHATE; CLOVERITE; QUADRUPOLAR COUPLING; MULTINUCLEAR MAS NMR SPECTROSCOPY; STATIC GA-71 NMR SPECTROSCOPY; LIMITATIONS OF MAS NMR SPECTROSCOPY;
D O I：
10.1016/0144-2449(93)90131-L
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：
Microporous gallophosphate cloverite has been studied by multinuclear (C-13, F-19, P-31, Ga-71) solid-state n.m.r. spectroscopy. An extraordinarily strong quadrupolar coupling is shown to be the reason for a misleading line shape in Ga-71 MAS n.m.r. spectra. Using static Ga-71 n.m.r. spectroscopy, an estimate of the size of this quadrupolar coupling can be obtained. The limitations of the MAS technique for the study of quadrupolar nuclei in sites with very large quadrupolar couplings are addressed.
引用
收藏
页码：607 / 610
页数：4
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