17O NMR Studies of Low Silicate Zeolites
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Dieter Freude; Thomas Loeser; Dieter Michel; Ulf Pingel; Daniel Prochnow
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Article
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2001
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Elsevier Science
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English
β 133 KB
Multiple-quantum magic-angle spinning and double-rotation NMR techniques were applied in the high field of 17.6 T to the study of oxygen-17-enriched zeolites A and LSX with the ratio Si/Al = 1. A monotonic correlation between the isotropic value of the chemical shift and the Si-O-Al bond angle Ξ± (ta