✦ LIBER ✦
Solid-state NMR characterization of oxygen sites in organically modified aluminosilicate xerogels
✍ Scribed by Aurélie Lafuma; Franck Fayon; Dominique Massiot; Sandrine Chodorowski-Kimmès; Clément Sanchez
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 259 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1282
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Solid‐state NMR characterization of hybrid aluminosilicate xerogels, by ^17^O magic angle spinning (MAS) and triple quantum magic angle spinning (MQMAS) techniques, evidences Si—O—Si and Si—O—Al oxygen sites, spectrally separated in MQMAS experiments. Inversion of the MQMAS spectra allows the measurement of quadrupolar parameters, isotropic chemical shifts, distribution of chemical shift and discussion of the mobility of the structural units. Copyright © 2003 John Wiley & Sons, Ltd.