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Double Rotation 23Na NMR Study of Guest-Host Interactions and Nanoscale Assemblies in Sodium Zeolite Y

Published online by Cambridge University Press:  15 February 2011

R. Jelinek ,
S. Ozkar  and
G. A. Ozin
R. Jelinek
Affiliation:
Lawrence Berkeley Laboratories, Materials Sciences Division, and University of California, Department of Chemistry, Berkeley, CA 94720
S. Ozkar
Affiliation:
University of Toronto, Lash Miller Chemical Laboratories, Advanced Zeolite Mterials Science Group, Toronto, Canada M5S 1A1
G. A. Ozin
Affiliation:
University of Toronto, Lash Miller Chemical Laboratories, Advanced Zeolite Mterials Science Group, Toronto, Canada M5S 1A1
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Abstract

23Na double rotation NMR (DOR) provides information on site-specific adsorption of guest molecules within the porous framework of sodium zeolite Y. Anchoring of molybdenum-hexacarbonyl to extraframework Na+ cations in particular locations within the large α-cavities is detected. Changes of the chemical environments of the Na+ cations are observed upon loading trimethylphosphine molecules. Spin-lattice relaxation measurements yield insight on dynamic aspects of the anchoring sodium cations.

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References

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