Abstract
The IR spectra of decationized zeolites with adsorbed bases have been analyzed. A correlation between the shift Δη(OH) of the center of gravity of the set of bandsA,B, andC (components of the η(OH) vibration) and the strength of the H-bond between the bridging hydroxyl groups and the molecule of a base has been found. This is evidence in support of the Fermi-resonance nature of the perturbations of the η(OH) vibration. Spectral data on the adsorption of H2O and MeOH on decationized zcolitcs that cannot be interpreted in terms of the formation of complexes with strong H-bonds have been obtained. Arguments in favor of the formation of H3O+ and MeOH2 + ions linked to the neighboring oxygen atoms in the zeolitc latticevia two identical hydrogen bridges have been presented.
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Na—Y zeolites were synthesized by N. N. Feoktistova
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1377–1381, June, 1996.
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Stavitskaya, G.P., Karetina, I.V. & Khvoshchev, S.S. IR spectroscopic study of the adsorption of MeOH and H2O on decationized zeolites. Russ Chem Bull 45, 1307–1311 (1996). https://doi.org/10.1007/BF01434202
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DOI: https://doi.org/10.1007/BF01434202