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Complex Open-Framework Germanate Built by 8-Coordinated Ge-10 Clusters
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
2012 (English)In: Inorganic Chemistry, ISSN 0020-1669, E-ISSN 1520-510X, Vol. 51, no 22, 12260-12265 p.Article in journal (Refereed) Published
Abstract [en]

A novel open-framework germanate [(C5H14N2)(2)(C5H12N2)(0.5)(H2O)(2.5)][Ge12.5O26(OH)(2)] with three-dimensional 10- and 11-ring channels, denoted as SU-67, has been synthesized under hydrothermal conditions using 2-methylpiperazine (MPP) as the structure-directing agent (SDA). The synthesis is intimately related to that of JLG-5, a tubular germanate built from Ge-7 clusters. The influences of synthesis parameters are discussed. A strong influence of the hydrofluoric acid quantity on the resulting cluster building units can be concluded. The framework of SU-67 is based on an elaborate topological pattern of connected Ge-10 clusters forming intersecting 10- and 11-ring channels and has a low framework density (12.4 Ge atoms per 1000 angstrom(3)). We have discovered that the topology of SU-67 is a new 8-connected nce-8-I4(1)/acd net. Strong hydrogen bonding among the organic SDAs, water molecules, and Ge-10 clusters resulted in helical networks in SU-67.

Place, publisher, year, edition, pages
2012. Vol. 51, no 22, 12260-12265 p.
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-83798DOI: 10.1021/ic301449yISI: 000311173700022OAI: oai:DiVA.org:su-83798DiVA: diva2:578488
Note

AuthorCount:4;

Available from: 2012-12-18 Created: 2012-12-14 Last updated: 2017-12-06Bibliographically approved

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