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In comparison with the dehydrated AgX the shifts for the oxidized form of AgX are lower by about 10 ppm. In our opinion, the unusual 129xe NMR chemical shifts of the silver-exchanged X zeolite are due to a specific interaction of xenon with the silver cations in the supercages, especially silver cations in Sill... [Pg.190]

See other pages where 129Xe NMR chemical shifts is mentioned: [Pg.453] [Pg.519] [Pg.275] [Pg.194]