THE CRYSTAL STRUCTURE OF A LOW-SILICA DEHYDRATED NAX ZEOLITE

dc.contributor.author	Porcher F.
dc.contributor.author	Souhassou M.
dc.contributor.author	Dusausoy Y.
dc.contributor.author	Lecomte C.
dc.date.accessioned	2021-01-15T05:03:13Z
dc.date.available	2021-01-15T05:03:13Z
dc.date.issued	1999
dc.identifier	https://elibrary.ru/item.asp?id=31821612
dc.identifier.citation	European Journal of Mineralogy, 1999, 11, 2, 333-343
dc.identifier.issn	0935-1221
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/23125
dc.description.abstract	The crystal structure of a low-silica and fully dehydrated NaX zeolite, the synthetic analogue of natural faujasite, with approximate chemical composition Na93Al93Si99O384 (Si/Al = 1.06) as determined by microprobe and NMR analysis, has been determined using single-crystal Cu(Kα) X-ray diffraction (a = 25.104(3) A). X-ray data reduction clearly shows that this crystal has Fd3 symmetry, as confirmed by the large difference between the Si-O and Al-O distances which indicates a substantial ordering of the Si and Al atoms in tetrahedral sites. All Na+ cations have been located, with refined occupancies of 97% (site I'), 93% (site II), 16% (site III'a) and 18% (site III'b); these sites are also those found in a fully dehydrated T1X zeolite.
dc.title	THE CRYSTAL STRUCTURE OF A LOW-SILICA DEHYDRATED NAX ZEOLITE
dc.type	Статья

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