Incommensurate Crystallography

by Sander van Smaalen

Overview

For many years it was believed that translational symmetry would be the fundamental property of crystal structures of natural and synthetic compounds. It is now recognised that many compounds crystallise without translational symmetry of their atomic structures. Incommensurate Crystallography gives a comprehensive account of the superspace theory for the description of crystal structures and symmetries of these incommensurately modulated crystals and incommensurate composite crystals. It thus provides the necessary background for quantitative analysis of incommensurate crystals by methods in Solid State Chemistry and Solid State Physics. The second half of Incommensurate Crystallography is devoted to crystallographic methods of structural analysis of incommensurate compounds.

Product Details

ISBN-13:	9780198570820
Publisher:	Oxford University Press
Publication date:	09/07/2007
Series:	International Union of Crystallography Monographs on Crystallography , #21
Pages:	284
Product dimensions:	9.20(w) x 6.10(h) x 0.70(d)

About the Author

Professor Sander van Smaalen
Laboratory of Crystallography
University of Bayreuth
Germany From 1976 until 1981 Sander van Smaalen studied Chemistry at the University of Utrecht.
PhD studies at the University of Groningen were completed in December 1985 with a thesis on the superspace analysis of incommensurately modulated crystals.
After one year of Postdoc in Buffalo, N.Y., U.S.A., van Smaalen was awarded a fellowship in the prestigious program 'Akademieonderzoekers' by the Royal Dutch Academy of Sciences (KNAW). Between 1987 and 1994 he was appointed at the University of Groningen, and his research was concerned with various aspects of the crystallography of aperiodic crystals.
Since November 1995, Sander van Smaalen is professor of crystallography at the University of Bayreuth, Germany.
Between 1996 and 2005 Sander van Smaalen was member of the Commission on Aperiodic Crystals of the International Union of Crystallography (IUCr), and between 1999 and 2005 he was the Chairman of this Commission.
Since 2000 Sander van Smaalen is co-Editor of Acta Crystallographica B.

Table of Contents

1. Structure and diffraction of aperiodic crystals2. Modulated crystals in superspace3. Symmetry of modulated crystals4. Incommensurate composite crystals5. Superstructures and the commensurate approximation6. Quantitative description of the diffraction by aperiodic crystals7. Structure refinements8. Electron density in superspace9. Determination of the superspace group10. Methods of structure solution11. Systematic crystal chemistryAppendices