Molecular Conformation of Hydrogen-Bonded Ethylene Glycol in Sodalite: A 1H CRAMPS NMR, IR, and 2H NMR Study
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SCOPUS
- Title
- Molecular Conformation of Hydrogen-Bonded Ethylene Glycol in Sodalite: A 1H CRAMPS NMR, IR, and 2H NMR Study
- Authors
- Han, DY; Woo, AJ; Nam, IS; Hong, SB
- Date Issued
- 2002-06-20
- Publisher
- American Chemical Society
- Abstract
- Analysis of the variable-temperature H-1 CRAMPS NMR, IR, and H-2 NMR spectra obtained from the ethylene glycol molecules in two sodalite materials with Si/Al ratios of infinity and ca. 5 reveals that the intermolecular hydrogen bonds between the framework oxygens and the OH groups of the guest molecule, which appear only in the isomorphously Al-substituted zeolite, are preserved even at 200 degreesC, which is higher than the crystallization temperature (175 degreesC) of the zeolite host. As a consequence, the conformations of the encapsulated ethylene glycol molecules in these two materials were found to maintain in a manner distinctly different from each other over the temperature range (25-200 degreesC) studied here.
- Keywords
- HOST-GUEST INTERACTIONS; ALUMINOSILICATE SODALITES; SILICA-SODALITE; PURE-SILICA; N,N,N,N' ,N' ,N' -HEXAETHYLPENTANEDIAMMONIUM; ZEOLITES; SYSTEMS; SOLIDS; ZSM-57; PHASE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/27727
- DOI
- 10.1021/jp014089m
- ISSN
- 1520-6106
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY, vol. 106, no. 24, page. 6206 - 6210, 2002-06-20
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- There are no files associated with this item.
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