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Type: Artigo de periódico
Title: Descriptions of crystalline structures of zeolites.
Author: Braga, AAC
Morgon, NH
Abstract: Crystalline structures of zeolites can be studied using different representations: the internal symmetry obtained by X-Ray or neutron diffraction crystallography techniques or a systematic analysis of the basic structural units which can be arranged to build the geometries of each kind of zeolite. In this work the basic concepts of three building units, SBU (Secondary Building Units), SSU (Structural SubUnits) and PBU (Periodic Building Units) are presented. The properties of the resulting crystalline structures are discussed (pores, cavities, channels), describing the influence of each one of these properties in processes of physical-chemical interest. Representative case studies of known zeolite crystalline structures are also discussed in terms of their space group classification.
Subject: zeolites
crystalline structures
building units
Country: Brasil
Editor: Soc Brasileira Quimica
Citation: Quimica Nova. Soc Brasileira Quimica, v. 30, n. 1, n. 178, n. 188, 2007.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422007000100030
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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