Simulations of129Xe NMR chemical shift of atomic xenon dissolved in liquid benzene
✍ Scribed by Stanislav Standara; Petr Kulhánek; Radek Marek; Jan Horníček; Petr Bouř; Michal Straka
- Publisher
- Springer
- Year
- 2011
- Tongue
- English
- Weight
- 421 KB
- Volume
- 129
- Category
- Article
- ISSN
- 1432-2234
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experiments we have determined values of the mean free path 1 of xenon adsorbed on various zeolites. We deduce from them the dependence of the chemical shift S on 1. It is now possible to determine the dimensions of any cavity in which xenon can be adsorbed.
The adsorption isotherms and lz9Xe NMR chemical shifts of xenon in the voids of zeolite Y with O%, 53%, 75%, and 95% exchange of copper (II) for sodium ions were determined. With increasing copper content the shifts go uptield. The local chemical shifts of xenon at a crystallographic SII site with a