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by Werner Baur,Reinhard X. Fischer

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As of this writing there are 186 known framework-type codes and the number of individual entries is close to 4900. That means that on average close to 400 new crystal structure determinations or refinements of zeolites have been published annually since the year 2000. This, fourth, subvolume E contains information on the 30 framework-type codes from RON to STI, encompassing 1100 individual entries, of which 949 are for the SOD-type alone. No other zeolite-type displays such variety. Possibly this is due to the collapsibility and flexibility of its simple framework.

Structures' of Landolt-Börnstein Group IV & Chemistry'

Framework Type Codes RON to STI' of Volume 14 & and other Framework Materials with Zeolite-Type Structures' of Landolt-Börnstein Group IV & Chemistry'. This document is part of Subvolume E & Crystal Structures and their Chemistry. Framework Type Codes RON to STI' of Volume 14 & and other Framework Materials with Zeolite-Type Structures' of Landolt-Börnstein Group IV & Chemistry'.

Start by marking Zeolite-Type Crystal Structures and their Chemistry. Zeolites and zeolite-like materials became important because of their ion exchange capacities and their outstanding catalytic properties. Framework Type Codes RON to STI as Want to Read: Want to Read savin. ant to Read. Millions of tons of zeolites have been produced in the past years for the oil refining industry alone and, in even greater quantities, as ion-exchanging softening agents for detergents. Numerous other applications, .

LANDOLT-BÖRNSTEIN Numerical Data and Functional . PHYSICAL CHEMISTRY Thermodynamic Properties Volume IV/10.

LANDOLT-BÖRNSTEIN Numerical Data and Functional Relationships in Science and Technology New Series Group IV. 3. The ELDATA Display is an ASCII file containing all the numerical data in the same format as SELF. This file is more explicit than SELF, the DOIs of property type, chemical system and reference being replaced by the corresponding descriptors. Moreover, the ELBT Program permits to convert in advance the SI units of pressure, temperature and energy into several practical units.

Framework Type Codes RON to STI. Subvolume E in Landolt-Börnstein, Numerical data and functional relationships in science and technology, New Series, Group IV: Physical Chemistry, Volume 14, Microporous and other Framework Materials with Zeolite-Type Structures, (Eds. R. X. Fischer and W. H. Baur) Springer-Verlag, Berlin, Heidelberg, 2009. T. B. Reed, D. W. Breck, Crystalline zeolites. II. Crystal structure of synthetic zeolite, Type A, J. Am. Chem.

Автор: Werner Baur; Reinhard X. Fischer Название: Zeolite-Type Crystal Structures and their Chemistry

Автор: Werner Baur; Reinhard X. Fischer Название: Zeolite-Type Crystal Structures and their Chemistry. Описание: Zeolites and zeolite-like materials became important because of their ion exchange capacities and their outstanding catalytic properties. This series of volumes presents a strictly systematic description of zeolite-type crystal structures.

Each time a new zeolite framework structure is reported, it is examined by the . This code is part of the official IUPAC nomenclature for microporous materials.

Each time a new zeolite framework structure is reported, it is examined by the Structure Commission of the International Zeolite Association (IZA-SC), and if it is found to be unique and to conform to the IZA-SC's definition of a zeolite, it is assigned a 3-letter framework type code. The Atlas of Zeolite Framework Types is essentially a compilation of data for each of these confirmed framework types.

Codes are only assigned to established structures that satisfy the rules of the IZA Structure Commission (Rules can be found in Appendix B). The codes should not be confused or equated with actual materials. They only describe and define the framework. Not allowed: „ NaLTA, NaLTL, NaFAU. Correct is to use: for guest species, for framework host „ Na+12(H2O)278 8-LTA or Na -LTA „ K+6Na+3(H2O)21 -LTL or K-Na -LTL. Na58 -FAU or Na -FAU.

Zeolites and their analogs are used as desiccants, as water softeners, as. .Description of the features of the framework type, allowing readers to quickly see if the framework type is suitable to their needs.

Zeolites and their analogs are used as desiccants, as water softeners, as shape-selective acid catalysts, as molecular sieves, as concentrators of radioactive isotopes, as blood clotting agents, and even as additives to animal feeds. Each time a new zeolite framework structure is reported, it is examined by the Structure Commission of the International Zeolite Association (IZA-SC), and if it is found to be unique and to conform to the IZA-SC's definition of a zeolite, it is assigned a 3-letter framework type code.

When the first volume of this compilation was published in 2000 (subvolume B of volume 14 of the Physical Chemistry, Group IV, of Landolt-Börnstein) we knew of 130 framework-type codes approved by the Structure Commission of the International Zeolite Association. At that point we had identified and collected in our databank Zeobase more than 1800 sets of individual crystal structure data concerning zeolites. We expected it would take three volumes to cover all this ground. As of this writing there are 186 known framework-type codes and the number of individual entries is close to 4900. That means that on average close to 400 new crystal structure determinations or refinements of zeolites have been published annually since the year 2000. This, fourth, subvolume E contains information on the 30 framework-type codes from RON to STI, encompassing 1100 individual entries, of which 949 are for the SOD-type alone. With 152 pages the SOD-chapter comprises more than a third of this volume. It is the most studied zeolite framework and is exceedingly complex in terms of its varied chemistry and especially in the richness of the various space group symmetries in which it has been found to occur. At least 27 different space groups have been used to describe the SOD-types known so far. No other zeolite-type displays such variety. Possibly this is due to the collapsibility and flexibility of its simple framework.

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