Abstract

The features of 27 Al and 87 Rb NMR in Rb-loaded LTA-type zeolite are discussed in comparison with K-loaded one. Broadening of 27 Al spectrum by magnetic origin is observed and the difference from the K case is pointed out for the shape of spectrum. These facts suggest that the configurations of electrons are not identical in the cases of Rb and K. For 87 Rb the mass center of the spectrum shifts clearly to higher frequency side below 10 K . The existence of Fermi contact interaction between s electron and Rb nuclei is suggested.

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