Extensively revised and updated, this new edition of a classic text presents a unified approach to crystallography and to the defects found within... crystals. The book combines the classical and exact description of symmetry of a perfect crystal with the possible geometries of the major defects-dislocations, stacking faults, point defects, twins, interfaces and the effects of martensitic transformations. A number of important concepts and exciting new topics have been introduced in this second edition, including piezoelectricity, liquid crystals, nanocrystalline concepts, incommensurate materials and the structure of foamed and amorphous solids. The coverage of quasicrystalline materials has been extended, and the data tables, appendices and references have been fully updated.Reinforcing its unrivalled position as the core text for teaching crystallography and crystal defects, each chapter includes problem sets with brief numerical solutions at the end of the book. Detailed worked solutions, supplementary lecture material and computer programs for crystallographic calculations are provided online (http://booksupport.wiley.com).

Crystallography and Crystal Defects Revised Edition A. Kelly, Churchill College, Cambridge, UK G. W. Groves, Exeter College, Oxford, UK and P. Kidd,... Queen Mary and Westfield College, University of London, UK The concepts of crystallography are introduced here in such a way that the physical properties of crystals, including their mechanical behaviour, can be better understood and quantified. A unique approach to the treatment of crystals and their defects is taken in that the often separate disciplines of crystallography, tensor analysis, elasticity and dislocation theory are combined in such a way as to equip materials scientists with knowledge of all the basic principles required to interpret data from their experiments. This is a revised and updated version of the widely acclaimed book by Kelly and Groves that was first published nearly thirty years ago. The material remains timely and relevant and the first edition still holds an unrivalled position at the core of the teaching of crystallography and crystal defects today. Undergraduate readers will acquire a rigorous grounding, from first principles, in the crystal classes and the concept of a lattice and its defects and their descriptions using vectors. Researchers will find here all the theorems of crystal structure upon which to base their work and the equations necessary for calculating interplanar spacings, transformation of indices and manipulations involving the stereographic projection and transformations of tensors and matrices.

Crystallography Made Crystal Clear is designed to meet the need for an X-ray analysis that is between brief textbook sections and complete treatments.... The book provides non-crystallographers with an intellectually satisfying explanation of the principles of how protein models are gleaned from X-ray analysis. The understanding of these concepts will foster wise use of the models, including the recognition of the strengths and weaknesses of pictures or computer graphics. Since proteins comprise the majority of the mass of macromolecules in cells and carry out biologically important tasks, the book will be of interest to biologists. Provides accessible descriptions of principles of x-ray crystallography, built on simple foundations for anyone with a basic science backgroundLeads the reader through clear, thorough, unintimidating explanations of the mathematics behind crystallographyExplains how to read crystallography papers in research journalsIf you use computer-generated models of proteins or nucleic acids for:Studying molecular interactionsDesigning ligands, inhibitors, or drugsEngineering new protein functionsInterpreting chemical, kinetic, thermodynamic, or spectroscopic dataStudying protein foldingTeaching macromolecule structure,and if you want to read new structure papers intelligently; become a wiser user of macromolecular models; and want to introduce undergraduates to the important subject of x-ray crystallography, then this book is for you.

Crystallography Made Crystal Clear makes crystallography accessible to readers who have no prior knowledge of the field or its mathematical basis. This... is the most comprehensive and concise reference for beginning Macromolecular crystallographers, written by a leading expert in the field. Rhodes' uses visual and geometric models to help readers understand the mathematics that form the basis of x-ray crystallography. He has invested a great deal of time and effort on World Wide Web tools for users of models, including beginning-level tutorials in molecular modeling on personal computers. Rhodes' personal CMCC Home Page also provides access to tools and links to resources discussed in the text. Most significantly, the final chapter introduces the reader to macromolecular modeling on personal computers-featuring SwissPdbViewer, a free, powerful modeling program now available for PC, Power Macintosh, and Unix computers. This updated and expanded new edition uses attractive four-color art, web tool access for further study, and concise language to explain the basis of X-ray crystallography, increasingly vital in today's research labs. * Helps readers to understand where models come from, so they don't use them blindly andinappropriately * Provides many visual and geometric models for understanding a largely mathematical method * Allows readers to judge whether recently published models are of sufficiently high quality and detail to be useful in their own work * Allows readers to study macromolecular structure independently and in an open-ended fashion on their own computers, without being limited to textbook or journals illustrations * Provides access to web tools in a format that will not go out of date. Links will be updated and added as existing resources change location or are added

Crystals and Crystal Structures is an introductory text for students and others who need to understand the subject without necessarily becoming... crystallographers. Using the book will enable students to read scientific papers and articles describing a crystal structure or use crystallographic databases with confidence and understanding.Reflecting the interdisciplinary nature of the subject the book includes a variety of applications as diverse as the relationship between physical properties and symmetry, and molecular and protein crystallography. As well as covering the basics the book contains an introduction to areas of crystallography, such as modulated structures and quasicrystals, and protein crystallography, which are the subject of important and active research.    A non-mathematical introduction to the key elements of the subjectContains numerous applications across a variety of disciplinesIncludes a range of problems and exercisesClear, direct writing style"…the book contains a wealth of information and it fulfils its purpose of providing an interesting and broad introduction to the terpenes." CHEMISTRY WORLD, February 2007

A concise yet comprehensive study of the behavior of light in crystals, this volume's topics range from space lattices and point groups to polarization... and dispersion. "A clear, concise, and carefully illustrated study..." — American Mathematical Monthly. With 175 figures and 8 plates, including 18 color photographs.

Crystal Structure Analysis, Third Edition, explains how and why the detailed three-dimensional architecture of molecules can be determined by an... analysis of the diffraction patterns obtained when X-rays or neutrons are scattered by the atoms in single crystals. Part 1 covers the nature of the crystalline state, diffraction in general, and diffraction by crystals, and also looks briefly at experimental procedures. Part II examines the problem of converting the experimentally obtained data into a model of the atomic arrangement that scattered these beams. Part III discusses techniques for refining the approximate structure to the degree warranted by the experimental data. It also describes the many types of information that can be obtained by modern crystal structure analysis. The text is enhanced by numerous illustrations, a detailed glossary, and several appendices that cover mathematical details.

This text focuses on the practical aspects of crystal structure analysis, and provides the necessary conceptual framework for understanding and applying... the technique. By choosing an approach that does not put too much emphasis on the mathematics involved, the book gives practical advice on topics such as growing crystals, solving and refining structures, and understanding and using the results. The technique described is a core experimental method in modern structural chemistry, and plays an ever more important role in the careers of graduate students, postdoctoral and academic staff in chemistry, and final-year undergraduates. Much of the material of the first edition has been significantly updated and expanded, and some new topics have been added. The approach to several of the topics has changed, reflecting the book's new authorship, and recent developments in the subject.

This textbook gives a concise introduction to modern crystal structure determination, emphasising both its theoretical background and the way it is... actually carried out. The theoretical sections are supported by many illustrations, and lay emphasis on a good understanding rather than rigorous mathematics. The most important data collection techniques, and the methods of data reduction, structure solution and refinement are discussed from a practical point of view. Many tips and insights help readers to recognise and avoid possible errors and traps, and to judge the quality of results. The second edition has been considerably updated, especially the chapter on experimental methods, which is now mainly concerned with modern data collection using area-detectors.

This informative book explains the principles and practice of one of the most important methods of determining the structures of molecules, a subject of... central interest in modern chemistry. It includes a set of case studies to illustrate how the method works. Mathematical treatment is kept at a relatively low level and is complemented by extensive graphical illustrations.

Crystal Structure Refinement is a mixture of textbook and tutorial. As A Crystallographers Guide to SHELXL it covers advanced aspects of practical... crystal structure refinement, which have not been much addressed by textbooks so far. After an introduction to SHELXL in the first chapter, a brief survey of crystal structure refinement is provided. Chapters three and higher address the various aspects of structure refinement, from the treatment of hydrogen atoms to the assignment of atom types, to disorder, to non-crystallographic symmetry and twinning. One chapter is dedicated to the refinement of macromolecular structures and two short chapters deal with structure validation (one for small molecule structures and one for macromolecules). In each of the chapters the book gives refinement examples, based on the program SHELXL, describing every problem in detail. It comes with a CD-ROM with all files necessary to reproduce the refinements.

Cry, the beloved country, for the unborn child that is the inheritor of our fear. Let him not love the earth too deeply. Let him not laugh too gladly... when the water runs through his fingers, nor stand too silent when the setting sun makes red the veld with fire. Let him not be too moved when the birds of his land are singing, nor give too much of his heart to a mountain or valley. For fear will rob him of all if he gives too much." The most famous and important novel in South Africa's history, and an immediate worldwide bestseller when it was published in 1948, Alan Paton's impassioned novel about a black man's country under white man's law is a work of searing beauty. The eminent literary critic Lewis Gannett wrote, "We have had many novels from statesmen and reformers, almost all bad; many novels from poets, almost all thin. In Alan Paton's Cry, the Beloved Country the statesman, the poet and the novelist meet in a unique harmony." Cry, the Beloved Country is the deeply moving story of the Zulu pastor Stephen Kumalo and his son, Absalom, set against the background of a land and a people riven by racial injustice. Remarkable for its lyricism, unforgettable for character and incident, Cry, the Beloved Country is a classic work of love and hope, courage and endurance, born of the dignity of man.