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 relation betwen the 129Xe NMR chemical shifts of xenon in the zeolites NaX, NaY and CuNaY
β Scribed by B. Boddenberg; M. Hartmann
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 344 KB
- Volume
- 203
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
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 and without the charge compensating sodium ion are concluded to be 60 and 32 ppm, respectively. ' To whom correspondence should be addressed.
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