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Hydrothermal synthesis of the tin analogue of penkvilksite-2O

Zhi Lin and Joao Rocha
Hydrothermal synthesis of the tin analogue of penkvilksite-2O (in Micro- and mesoporous mineral phases, S. Merlino (editor))
European Journal of Mineralogy (December 2005) 17 (6): 869-873


The small-pore framework stannosilicate Na (sub 2) SnSi (sub 4) O (sub 11) .2H (sub 2) O (Sn-AM-3), exhibiting the structure-type of the rare mineral penkvilksite-2O, has been synthesized via a seeded hydrothermal process. The estimated cell dimensions are: a = 16.52, b = 8.80, c = 7.48 A. The Sn-AM-3 three-dimensional framework is made up of [Si (sub 4) O (sub 11) ] silicate sheets interconnected by SnO (sub 6) octahedra. The [Si (sub 4) O (sub 11) ] silicate sheets may be described as a combination of the spiral chains formed by the corner-sharing SiO (sub 4) tetrahedra. Sn-AM-3 is the first example of a synthetic microporous stannosilicate whose structure is built up from silicate sheets. All materials were studied by bulk chemical analysis, powder X-ray diffraction, scanning electron microscopy, (super 29) Si, (super 119) Sn, single- and triple-quantum (super 23) Na magic-angle spinning NMR spectroscopy and thermogravimetry. Solid-state NMR is a particularly powerful technique to establish the presence of the 1M and 2O polytypes and accurately determine their relative abundances in mixed samples.

ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 17
Serial Issue: 6
Title: Hydrothermal synthesis of the tin analogue of penkvilksite-2O
Title: Micro- and mesoporous mineral phases
Author(s): Lin, ZhiRocha, Joao
Author(s): Merlino, S.editor
Affiliation: University of Aveiro, Department of Chemistry, Aveiro, Portugal
Pages: 869-873
Published: 200512
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
Meeting name: Micro- and mesoporous mineral phases
Meeting location: Rome, ITA, Italy
Meeting date: 20041206Dec. 6-7, 2004
References: 17
Accession Number: 2006-015610
Categories: Mineralogy of silicates
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200608
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