Self-sufficient and user-friendly, this book provides a complete introduction to the anisotropic elasticity theory necessary to model a wide range of crystal defects. Assuming little prior knowledge of the subject, the reader is first walked through the required basic mathematical techniques and methods. This is followed by treatments of point, line, planar and volume type defects such as vacancies, dislocations, grain boundaries, inhomogeneities and inclusions. Included are analyses of their elastic fields, interactions with imposed stresses and image stresses, and interactions with other defects, all employing the basic methods introduced earlier. This step by step approach, aided by numerous exercises with solutions provided, strengthens the reader's understanding of the principles involved, extending it well beyond the immediate scope of the book. As the first comprehensive review of anisotropic elasticity theory for crystal defects, this text is ideal for both graduate students and professional researchers.

Series Information:
Liquid Crystals

In recent years, there has been increasing activity in the research and design of optical systems based on liquid crystal (LC) science. Bringing together contributions from leading figures in industry and academia, Optical Applications of Liquid Crystals covers the range of existing applications as well as those in development. Unique in its thorough coverage of applications, not just the basic chemistry and physics of liquid crystals, the book begins with the existing applications of liquid crystals, from the ubiquitous LCD through to LC projectors and holography. The remaining chapters discuss more promising technologies in development, including photoaligning, photopatterning, and bistable twisted nematic LCs.

A Century of Separation Science presents an historical, as well as technical, perspective of the critical developments in separation science since 1900, covering recent advances in chromatography, electrophoresis, field-flow fractionation, contercurrent chromatography, adn supercritical fluid chromatography for high-speed and high-throughput analysis. The author also discusses the theory of gradient elution and solvent selection for optimal separation in liquid chromatography.

The aim of this text is to provide some insight into chemical defects in crystalline solids. Chemical defects, which are mistakes or changes in the atomic make-up of the crystals, have far-reaching effects on the composition, optical properties and electronic properties of materials. The area is therefore of relevance to chemists, physicists, materials scientists and engineers. The book has been designed to be read by students with no prior knowledge of the subject, but with a background in basic chemistry and physics. It begins with relatively simple ideas but progresses into a discussion of complex materials, at the forefront of research in the field. The links between principles and applications have been strengthened in the text by the inclusion of a series of case studies. In addition, the crystal structures that are of most importance have been described throughout the book in a series of boxes, to provide a crystallographic reference within the text.

In the past decade, a number of orientational effects have been observed, produced by the passage of charged particles through crystals. These effects have a wide application in solid state physics, nuclear physics and the physics of hyperfine interactions. This book is not a survey but an introduction to this rapidly expanding branch of physics devoted to orientational effects and in particular to particle channelling in crystals. In it the authors discuss the interaction of charged particle beams with crystals and analyze the derivation of the fundamental equations describing this interaction. The channelling effect, the spatial redistribution of the particle flux and in the crystal lattice, and the problem of determining the position of an implanted atom in the lattice cell are also examined in detail. Student and postgraduate researchers as well as scientists and engineers working in experimental nuclear physics on the production of new materials and the physics of orientational effects, ion doping and solid state radiation physics may find this study useful.

The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.

The present volume continues the aim of Structure Reports to present critical accounts of all crystallographic structure determinations. Details of the arrange­ ment in the volumes, symbols used etc. are given in previous volumes (e. g. 41B or 42A, pages vi-viü). University of Guelph, G. FERGUSON Guelph, Ontario, Canada 1 May, 1993 STR UCTURE REPORTS for 1985 Volume52B Part2 STRUCTURE REPORTS for 1985 Valurne 52B (Part 2) ORGANIC SECTION General editor G. Ferguson Section editor G. Ferguson Published for the INTERNATIONAL UNION OF CRYSTALLOGRAPHY SPRINGER-SCIENCE+BUSINESS MEDIA, B. V. TABLE OF CONTENTS Introduction, VI Transition-metal Compounds (continued), 1103 Subject Index, 1902 Permuted Subject Index, 1993 Formula Index, 2053 Permuted Formula Index, 2078 Author Index, 2102 STRUCTURE REPORTS SECTIONID ORGANIC COMPOUNDS Edited by G. Ferguson with the assistance of C. H. Morgan D. F. Rendie S. J. Rettig S. N. Scrimgeour T. J. R. Weakley C. C. Wilson D. W. Young 2 ARRANGEMENT To find a particular organic or organometallic compound consult one of the indices (subject, permuted subject, formula or permuted formula) at the end of Part 2 of this volume. The general arrangement follows the classification used in the Cambridge Crystallographic Data Base and is: aliphatic or open chain compounds; open chains with N, S; benzene derivatives; c cyclic hydrocarbons; condensed ring systems; heterocyclic compounds; carbohydrates; amino acids; natural products; molecular complexes; organometallic compounds - B, Si, P, AJJ, Sb, groups lA, IIA, III, IV, VI; transition meta! complexes - . .

This volume contains most of the invited lectures of the 2nd Structural Chemistry Indaba on "Molecular Interactions," held at Skukuza, Kruger Park, South Africa, August 3- 8, 1997. While the 1995 conference concentrated more on the principles underlying molecular modeling, like the existence of a molecular shape, this conference centers on molecular interactions or, more generally, on molecules in environments. Unfortunately, it was impossible, for various reasons, to unite all invited lectures in this volume, but nevertheless this collection contains contributions ranging from the fundamental quantum mechanical theory to recent research on organometallic crystals. For a summary, I would like to refer the reader to the introductory chapter by S.O. Sommerer, based on his concluding remarks at the conference. WemerGans for the editors v CONTENTS Intermolecular Interactions ...S. O. Sommerer Intermolecular Bonding ...3 1. C. A. Boeyens Chemical Reactions in the Framework of Single Quantum Systems ...9 A. Amann The Molecule and Its Environment ...25 ...B. T. Sutcliffe Dynamic Aspects of Intermolecular Interactions ...49 ...1. F. Ogilvie Atomic Interactions and the Charge Density ...5 7 ...T. Koritsanszky 71 Cyclometallation of Alkylphosphines M. T. Benson and T. R. Cundari C-H-. *0 Hydrogen Bonds in Organometallic Crystals 83 D. Braga and F. Grepioni The Importance of Intra-and Intermolecular Weak Bonds in Transition Metal Coordination Compounds ...97 P. Comba Relationships between Experiment and Theory in the Study of Intermolecular Interactions ...111 ...