Determining the Structure of Trimethylphosphine Bound to the Brønsted Acid Site in Zeolite HY: Double-Resonance NMR and ab Initio Studies
✍ Scribed by Kao, Hsien-Ming; Liu, Haiming; Jiang, Jyh-Chiang; Lin, Sheng-Hsien; Grey, Clare P.
- Book ID
- 127054198
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 162 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0022-3654
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The Brønsted acidity of H-mordenite (H-MOR) and H-b with similar Si/Al ratios has been characterized by conventional multinuclear solid-state NMR. 1 H/ 27 Al TRAPDOR NMR showed the presence of at least two different types of Brønsted acid sites in H-b. On the other hand, only a single 1 H resonance