6533b83afe1ef96bd12a780b

RESEARCH PRODUCT

Aspects of the characterization of cloverite by solid-state n.m.r. techniques

Franz-ferdinand SchüthFranz-ferdinand SchüthKenneth D. M. HarrisBodo ZibrowiusBodo ZibrowiusAbil E. AlievMichael W. AndersonWolfgang SchmidtWolfgang Schmidt

subject

CouplingChemistryAnalytical chemistrySolid-stateMicroporous materialSpectroscopySpectral lineGeneral Environmental ScienceCharacterization (materials science)Line (formation)

description

Abstract Microporous gallophosphate cloverite has been studied by multinuclear ( 13 C, 19 F, 31 P, 71 Ga) solid-state n.m.r. spectroscopy. An extraordinarily strong quadrupolar coupling is shown to be the reason for a misleading line shape in 71 Ga MAS n.m.r. spectra. Using static 71 Ga 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.

https://doi.org/10.1016/0144-2449(93)90131-l