27Al Solid-state NMR spectra of ultrastable zeolite Y with fast magic-angle spinning and1H–27Al cross-polarization
- 1 January 1991
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 16,p. 1121-1122
- https://doi.org/10.1039/c39910001121
Abstract
Fast (>12 kHz) magic-angle-spinning NMR with 1H–27Al cross-polarization quantitatively monitors several aluminous species in dealuminated zeolite Y; the non-framework matter contains 4-, 5- and 6-coordinated Al and the 27Al signal at 30 ppm is an independent resonance probably due to 5-coordinated non-framework Al and not part of a second-order quadrupole lineshape as previously reported.Keywords
This publication has 9 references indexed in Scilit:
- 29Si and 27Al magic-angle-spinning NMR studies of the thermal transformation of kaolinitePhysics and Chemistry of Minerals, 1990
- Quadrupole nutation n.m.r. reveals the presence of a new aluminium species in hydrothermally treated zeolitesJournal of the Chemical Society, Chemical Communications, 1989
- Selective and non-selective NMR excitation of quadrupolar nuclei in the solid stateChemical Physics Letters, 1988
- Quadrupole nutation 27Al NMR studies of isomorphous substitution of aluminium in the framework of zeolite YChemical Physics Letters, 1988
- Quantitative determination of aluminium in zeolites by solid-state 27Al n.m.r. spectroscopyJournal of the Chemical Society, Chemical Communications, 1988
- Quantitative high-resolution 27Al NMR: tetrahedral non-framework aluminium in hydrothermally treated zeolitesChemical Physics Letters, 1987
- Penta-co-ordinated aluminium in zeolites and aluminosilicatesJournal of the Chemical Society, Chemical Communications, 1987
- First observation of 5-coordinate aluminum by MAS aluminum-27 NMR in well-characterized solidsJournal of the American Chemical Society, 1986
- High-resolution solid-state nuclear magnetic resonance studies of dealuminated zeolite YJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1985