Compendium of Zeolite Framework Types: Building Schemes and Type CharacteristicsThis compendium describes all known zeolite framework types. The first part gives a pictorial description of how the framework can be built using periodic building units (PerBUs). The PerBUs are built from smaller units composed of a limited number of T-atoms (such as Si, Al, P, Ga, B, Be etc.) by applying simple operation(s) to the smaller unit, e.g. translation, rotation. The zeolite framework types are analysed in terms of these component PerBUs. The second part covers the larger cages, cavities and/or channels in the zeolite framework together with the framework type codes (FTCs) in which they appear. In addition, two appendices are included for easy-referencing. Two appendices are added. The first giving a survey of cages as type characteristics with their FTCs. The second summarizing those channels and cavities that appear in more than one framework type. The Compendium of Zeolite Framework Types contains complementary information to the data in the "Atlas of Zeolite Framework Types" (Baerlocher et al (2001) Elsevier, London). The latter contains the topological symmetry, unit cell data and pore dimensions. * How zeolites can be built using simple building units* Description of the channels and cages in all zeolites known to date* Survey of those channels and cages that appear in more than one zeolite |
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Compendium of Zeolite Framework Types: Building Schemes and Type Characteristics Henk van Koningsveld No preview available - 2007 |
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6-rings as shown 8-ring channels parallel and/or cages Intersecting and/or cages Non-interconnecting axis parallel bc layer bold in Figure Building Scheme Building Unit Tetragonal built using units Cage/Channel cavity viewed cell content projected cell content right cell content viewed chain axis chains are connected channel axis left channel axis right Channel viewed perpendicular Channels and/or cages channels are parallel common 8-rings Connection mode left Connection mode Neighboring Connection mode viewed depicted in Figure double 6-rings gmel cavity illustrated in Figure infinite building unit Intersecting 8-ring channels mode and unit mode Neighboring PerBUs one-dimensional PerBU parallel to 100 PerBU is drawn PerBU is obtained PerBU viewed Periodic Building Unit pure translations repeat unit rho cavity rotation of 180º saw chain screw rotation shift of 12 shown in Figure sod cage top right topologically equivalent two-dimensional PerBU unit cell content Unit The two-dimensional viewed along 120 zeolite
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