The structure of the CAS type zeolite, Cs4[Al4Si20O48] by high-resolution powder neutron diffraction 29Si MAS and NMR

R. J. Hughes, M. T. Weller

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Abstract

The structure of Cs4[Al4Si20O48] with the zeolite framework type CAS has been refined using high-resolution powder neutron diffraction data. The refined distribution of silicon and aluminium is not random but has aluminium preferentially located on one of the three tetrahedral sites. This result is confirmed by 29Si MAS NMR data from the same material that also indicates that orientated O3Si–O–AlO3 pairs exist in the structure.

Original languageEnglish
Pages (from-to)189-196
JournalMicroporous and Mesoporous Materials
Volume51
Issue number3
DOIs
Publication statusPublished - 1 Feb 2002

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