Premium
Evidence for Selective Association of Tetrahedral BO 4 Units with Na + and of Trigonal BO 3 Units with H + in Dehydrated Zeolite B‐ZSM‐5 from Solid‐State NMR Spectroscopy
Author(s) -
Fild Christian,
Eckert Hellmut,
Koller Hubert
Publication year - 1998
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19981002)37:18<2505::aid-anie2505>3.0.co;2-f
Subject(s) - trigonal crystal system , zeolite , tetrahedron , chemistry , nuclear magnetic resonance spectroscopy , ion , crystallography , spectroscopy , solid state , nuclear magnetic resonance , stereochemistry , physics , organic chemistry , catalysis , crystal structure , quantum mechanics
Conclusive proof has now been obtained for the selective association of trigonal BO 3 and tetrahedral BO 4 units with H + and Na + ions, respectively, in B‐ZSM‐5 zeolites (the interactions are depicted in the picture). This was achieved with a combination of 11 B{ 23 Na}, 11 B{ 1 H}, and 1 H{ 11 B} rotational echo double resonance (REDOR) NMR spectroscopic experiments.