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

Authors
ZIBROWIUS B ANDERSON MW SCHMIDT W SCHUTH FF ALIEV AE HARRIS KDM
Citation
B. Zibrowius et al., ASPECTS OF THE CHARACTERIZATION OF CLOVERITE BY SOLID-STATE NMR TECHNIQUES, Zeolites, 13(8), 1993, pp. 607-610
Citations number
8
Categorie Soggetti
Chemistry Physical
Journal title
Zeolites → ACNP
ISSN journal
01442449
Volume
13
Issue
8
Year of publication
1993
Pages
607 - 610
Database
ISI
SICI code
0144-2449(1993)13:8<607:AOTCOC>2.0.ZU;2-V
Abstract
Microporous gallophosphate cloverite has been studied by multinuclear (C-13, F-19, P-31, Ga-71) solid-state n.m.r. spectroscopy. An extraord inarily strong quadrupolar coupling is shown to be the reason for a mi sleading 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 couplin g can be obtained. The limitations of the MAS technique for the study of quadrupolar nuclei in sites with very large quadrupolar couplings a re addressed.