Evidence for selective association of tetrahedral BO4 units with Na+ and of trigonal BO3 units with H+ in dehydrated zeolite B-ZSM-5 from solid-state NMR spectroscopy

Angewandte Chemie - International Edition

Volumn 37, Issue 18, 1998, Pages 2505-2507

  Fild, Christian ^a   Eckert, Hellmut ^a   Koller, Hubert ^a  

^a UNIVERSITY OF MÜNSTER   (Germany)

Author keywords

Boron; Coordination modes; NMR spectroscopy; Zeolites

Indexed keywords

EID: 0032476135     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19981002)37:18<2505::AID-ANIE2505>3.0.CO;2-F     Document Type: Article

References (11)

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2. K. F. G. J. Scholle, W. S. Veeman, Zeolites 1985, 5, 118.
3. E. Brunner, D. Freude, M. Hunger, H. Pfeifer, W. Reschetilowski, B. Unger. Chem. Phys. Lett. 1988, 148, 226.
4. R. F. Lobo, M. E. Davis, J. Am. Chem. Soc. 1995, 117, 3766.
5. J. Sauer in Modelling of Structure and Reactivity in Zeolites (Ed.: C. R. A. Catlow). Academic Press. London, 1992, p. 183.
6. a) T. Gullion, J. Schaefer, J. Magn. Reson. 1989, 81, 196;
7. b) Y. Pan, T. Gullion, J. Schaefer, J. Magn. Reson. 1990, 90, 330;
8. c) E. R. H. van Eck, W. S. Veeman, Solid State NMR 1993, 2, 307.
9. R. Martens, Dissertation, Universität Münster, 1995.
10. B. Gee, H. Eckert, Solid State NMR 1995, 5, 113.
11. A peak at δ = 4.3 and broad shoulder on the low-field side have been ascribed to different Brønsted acid sites in Al-ZSM-5: L. W. Beck, J. L. White, J. F. Haw, J. Am. Chem. Soc. 1994, 116, 9657.