Get Compendium Of Zeolite Framework Types PDF

By Henk van Koningsveld

ISBN-10: 0444530959

ISBN-13: 9780444530950

This compendium describes all recognized zeolite framework forms. the 1st half offers a pictorial description of ways the framework should be outfitted utilizing periodic development devices (PerBUs). The PerBUs are outfitted from smaller devices composed of a constrained variety of T-atoms (such as Si, Al, P, Ga, B, Be etc.) through employing easy operation(s) to the smaller unit, e.g. translation, rotation. The zeolite framework forms are analysed when it comes to those part PerBUs. the second one half covers the bigger cages, cavities and/or channels within the zeolite framework including the framework sort codes (FTCs) during which they seem. furthermore, appendices are incorporated for easy-referencing. appendices are extra. the 1st giving a survey of cages as kind features with their FTCs. the second one summarizing these channels and cavities that seem in additional than one framework type.The Compendium of Zeolite Framework varieties comprises complementary info to the information within the "Atlas of Zeolite Framework kinds" (Baerlocher et al (2001) Elsevier, London). The latter comprises the topological symmetry, unit phone information and pore dimensions.

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2. Connection mode (left) and unit cell content viewed along c. For clarity, only 2 repeat units of the PerBUs are drawn. 53 Cage/Channel ATO 3. Channels and/or cages Non-interconnecting 12-ring channels are parallel to c. The channel wall consists of fused 6-rings as depicted in Figure 3. The channel is topologically equivalent to the 12-ring channels in CAN and NPO. {1 [66122/2] [001] (12-ring)} c Fig. 3. Channel viewed perpendicular to the channel axis (left) and along the channel axis (right).

1. PerBU viewed along a (left) and along c (middle and right). The PerBUs at the right are related by a rotation of 180° about a followed by a shift of ᎏ12ᎏ b. a c 2. Connection mode Neighboring PerBUs, related along a by a screw rotation of 180° about a followed by a shift of ᎏ12ᎏ b, are connected along a through 4-rings as illustrated in Figure 2. b a b c a a Fig. 2. Connection mode viewed along c (left) and unit cell content projected along c (top) and along b (bottom). 29 Cage/Channel AFR 3.

The stacking sequence is given. In the perspective drawing, each PerBU is represented by one 6-ring only. 35 Cage/Channel AFX 3. Channels and/or cages The two types of cavities are depicted in Figure 3. AFX can be built from gmel cavities alone (see also GME). The gmel cavity is also present in GME, AFT, EAB, EON, MAZ and OFF. The aft cavity is also found in AFT. gmel cavity {2 {2 [496283] <100> (8-ring)} aft cavity <100> (8-ring)} [4156289] Fig. 3. Cavities viewed along Ͻ120Ͼ (left and middle).

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Compendium Of Zeolite Framework Types by Henk van Koningsveld

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