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Books > Science & Mathematics > Chemistry > Crystallography
This handbook seeks to facilitate the selection, design and
operation of large-scale industrial crystallizers that process
crystals with the proper size distribution, shape and purity sought
- including cooling, evaporation, drowning-out reaction, melt, and
related crystallization techniques. This new edition offers new
results on direct-contact cooling crystallization. It lists the
properties of over 170 organic and inorganic crystallization
systems.
In the last decade mathematical crystallography has found
increasing interest. Siginificant results have been obtained by
algebraic, geometric, and group theoretic methods. Also classical
crystallography in three-dimen sional Euclidean space has been
extended to higher dimen sions in order to understand better the
dimension independent crystallographic properties. The aim of this
note is to introduce the reader to the fascinating and rich world
of geometric crystallography. The prerequisites for reading it are
elementary geometry and topological notations, and basic knowledge
of group theory and linear algebra. Crystallography is geometric by
its nature. In many cases, geometric arguments are the most
appropriate and can thus best be understood. Thus the geometric
point of view is emphasized here. The approach is axiomatic start
ing from discrete point sets in Euclidean space. Symmetry comes in
very soon and plays a central role. Each chapter starts with the
necessary definitions and then the subject is treated in two- and
three-dimensional space. Subsequent sections give an extension to
higher dimensions. Short historical remarks added at the end of the
chapters will show the development of the theory. The chapters are
main ly self-contained. Frequent cross references, as well as an
extended subject index, will help the reader who is only interested
in a particular subject."
This volume analyzes both the theoretical and experimental aspects
of neutron spectroscopy of solids, whereby complex crystals may be
analyzed in relation to the theories of symmetry and neutron
scattering near a structural or magnetic transition.
In its combination of an advanced teaching standpoint with an
emphasis on new perspectives and recent advances in the study of
liquids formed by simple molecules, Molecular Liquids: New
Perspectives in Physics and Chemistry provides a clear,
understandable guide through the complexities of the subject. A
wide range of topics is covered in the areas of intermolecular
forces, statistical mechanics, the microscopic dynamics of simple
liquids, thermodynamics of solutions, nonequilibrium molecular
dynamics, molecular models for transport and relaxation in fluids,
liquid simulations, statistical band shape theories, conformational
studies, fast-exchange dynamics, and hydrogen bonding. The
experimental techniques covered include: neutron scattering, X-ray
diffraction, IR, Raman, NMR, quasielastic neutron scattering, and
high-precision, time-resolved coherent Raman spectroscopy.
Introducing the most recent advances in crystallography, nuclear
magnetic resonance, molecular modeling techniques, and
computational combinatorial chemistry, this unique,
interdisciplinary reference explains the application of
three-dimensional structural information in the design of
pharmaceutical drugs. Furnishing authoritative analyses by
world-renowned experts, Structure-Based Drug Design discusses
protein structure-based design in optimizing HIV protease
inhibitors and details the biochemical, genetic, and clinical data
on HIV-1 reverse transcriptase presents recent results on the
high-resolution three-dimensional structure of the catalytic core
domain of HIV-1 integrase as a foundation for divergent combination
therapy focuses on structure-based design strategies for uncovering
receptor antagonists to treat inflammatory diseases demonstrates a
systematic approach to the design of inhibitory compounds in cancer
treatment reviews current knowledge on the Interleukin-1 (IL-1)
system and progress in the development of IL-1 modulators describes
the influence of structure-based methods in designing
capsid-binding inhibitors for relief of the common cold and much
more!
This book gives an up-to-date introduction to the structure, physical properties and applications of quasicrystalline alloys. It covers quasiperiodic tilings and the determination and modelling of the atomic structure of quasicrystals. The electronic properties, determined from measurements of the partial electronic density of states and the calculation of the electronic structure, play a key role in this introduction, as does an extensive discussion of the determination and simulation of the atomic dynamics. For the application of these aperiodic crystals, defects are a critical issue. Thus the book also presents a detailed treatement of the study of defects in quasicrystals by high resolution electron microscopy and ion channeling, as well as computer simulations of defects and fracture in decorated tilings.
The work focuses on recent developments of the rapidly evolving
field of Non-conventional Liquid Crystals. After a concise
introduction it discusses the most promising research such as
biosensing, elastomers, polymer films , photoresponsive properties
and energy harvesting. Besides future applications it discusses as
well potential frontiers in LC science and technology.
This textbook presents an extensive manual of crystallography,
including geometric crystallography, crystallochemistry, and
crystallophysics. Illustrated with a wealth of figures and
diagrams, it offers a thorough introduction to crystals for
undergraduate and graduate students interested in learning the
essentials and advanced concepts of crystallography. The book
begins with basic concepts such as the geometry, morphology and
symmetry of lattices, allowing readers to approach the subject from
a mathematical point of view, abstracting it from its material
content. In turn, the second part focuses on crystallochemistry and
explains the differences between ideal and real crystals, and
between static and dynamic ones. The third part of the textbook
concerns crystallophysics and addresses the electrical, magnetic,
mechanical, elastic and optical properties of crystals, as well as
the fundamental laws and methods of X-ray diffraction.
1. The ninth International Summer School on Crystal Growth. ISSCG
IX A complete theory of crystal growth establishes the full
dependence of crystal size, shape and structure on external
parameters like temperature, pressure, composition, purity, growth
rate and stirring of the mother phase, implicitly establishing how
the corresponding fields vary in space and time. Such a theory does
not exist, however. Therefore equipment to grow crystals is
developed on the basis of partial knowledge. Skill, experience and
creativity still are of central importance for the success o~ a
crystal growth system. In this book we collected contributions from
the teachers of the ninth International Summer School on Crystal
Growth ISSCG IX, held 11-16 june 1995 at Papendal, the national
sports centre of the Netherlands. These contributions were used
during the lectures. The authors have tried to present their work
in such a way that only basic physical knowledge is required to
understand the papers. The book can be used as an introduction to
various important sub disciplines of the science and technology of
crystal growth. Since, however the information content considerably
exceeds a lecture note level and touches the present limits of
understanding, it is an up to date handbook as well.
The concept of reciprocal space is over 100 years old, and has been
of particular use by crystallographers in order to understand the
patterns of spots when x-rays are diffracted by crystals. However,
it has a much more general use, especially in the physics of the
solid state. In order to understand what it is, how to construct it
and how to make use of it, it is first necessary to start with the
so-called real or direct space and then show how reciprocal space
is related to it. Real space describes the objects we see around
us, especially with regards to crystals, their physical shapes and
symmetries and the arrangements of atoms within: the so-called
crystal structure. Reciprocal space on the other hand deals with
the crystals as seen through their diffraction images. Indeed,
crystallographers are accustomed to working backwards from the
diffraction images to the crystal structures, which we call crystal
structure solution. In solid state physics, one usually works the
other way, starting with reciprocal space to explain various
solid-state properties, such as thermal and electrical phenomena.
In this book, I start with the crystallographer's point of view of
real and reciprocal space and then proceed to develop this in a
form suitable for physics applications. Note that while for the
crystallographer reciprocal space is a handy means of dealing with
diffraction, for the solid-state physicist it is thought of as a
way to describe the formation and motion of waves, in which case
the physicist thinks of reciprocal space in terms of momentum or
wave-vector k-space. This is because, for periodic structures, a
characteristic of normal crystals, elementary quantum excitations,
e.g. phonons and electrons, can be described both as particles and
waves. The treatment given here, will be by necessity brief, but I
would hope that this will suffice to lead the reader to build upon
the concepts described. I have tried to write this book in a
suitable form for both undergraduate and graduate students of what
today we call "condensed matter physics."
This volume draws on the expertise of leaders in the field of
macromolecular crystallography to illuminate the dramatic
developments that are accelerating progress in structural biology.
Their contributions span the range of techniques from
crystallization through data collection, structure solution and
analysis. The book shows how modern high-throughput methods are
contributing to a deeper understanding of medical problems.
The bond valence model, a description of acid-base bonding, is
widely used for analysing and modelling the structures and
properties of solids and liquids. Unlike other models of inorganic
chemical bonding, the bond valence model is simple, intuitive, and
predictive, and is accessible to anyone with a pocket calculator
and a secondary school command of chemistry and physics. This new
edition of 'The Chemical Bond in Inorganic Chemistry: The Bond
Valence Model' shows how chemical properties arise naturally from
the conflict between the constraints of chemistry and those of
three-dimensional space. The book derives the rules of the bond
valence model, as well as those of the traditional covalent, ionic
and popular VSEPR models, by identifying the chemical bond with the
electrostatic flux linking the bonded atoms. Most of the new
edition is devoted to showing how to apply these ideas to real
materials including crystals, liquids, glasses and surfaces. The
work includes detailed examples of applications, and the final
chapter explores the relationship between the flux and quantum
theories of the bond.
Knowledge of the microscopic structure of biological systems is the
key to understanding their physiological properties. Most of what
we now know about this subject has been generated by techniques
that produce images of the materials of interest, one way or
another, and there is every reason to believe that the impact of
these techniques on the biological sciences will be every bit as
important in the future as they are today. Thus the 21st century
biologist needs to understand how microscopic imaging techniques
work, as it is likely that sooner or later he or she will have to
use one or another of them, or will otherwise become dependent on
the information that they provide. The objective of this textbook
is to introduce its readers to the many techniques now available
for imaging biological materials, e.g. crystallography, optical
microscopy and electron microscopy, at a level that will enable
them to use them effectively to do research. Since all of these
experimental methods are best understood in terms of Fourier
transformations, this book explains the relevant concepts from this
branch of mathematics, and then illustrates their elegance and
power by applying them to each of the techniques presented. The
book is derived from a one-term course in structural biology that
the author gave for many years at Yale. It is intended for students
interested either in doing structural research themselves, or in
exploiting structural information produced by others. Over the
years, the course was taken successfully by advanced undergraduates
and by graduate students. Scientists interested in entering the
structural biology field later in their careers may also find it
useful.
Volume IA Handbook of Crystal Growth, 2nd Edition (Fundamentals:
Thermodynamics and Kinetics) Volume IA addresses the present status
of crystal growth science, and provides scientific tools for the
following volumes: Volume II (Bulk Crystal Growth) and III (Thin
Film Growth and Epitaxy). Volume IA highlights thermodynamics and
kinetics. After historical introduction of the crystal growth,
phase equilibria, defect thermodynamics, stoichiometry, and shape
of crystal and structure of melt are described. Then, the most
fundamental and basic aspects of crystal growth are presented,
along with the theories of nucleation and growth kinetics. In
addition, the simulations of crystal growth by Monte Carlo, ab
initio-based approach and colloidal assembly are thoroughly
investigated. Volume IB Handbook of Crystal Growth, 2nd Edition
(Fundamentals: Transport and Stability) Volume IB discusses pattern
formation, a typical problem in crystal growth. In addition, an
introduction to morphological stability is given and the
phase-field model is explained with comparison to experiments. The
field of nanocrystal growth is rapidly expanding and here the
growth from vapor is presented as an example. For the advancement
of life science, the crystal growth of protein and other biological
molecules is indispensable and biological crystallization in nature
gives many hints for their crystal growth. Another subject
discussed is pharmaceutical crystal growth. To understand the
crystal growth, in situ observation is extremely powerful. The
observation techniques are demonstrated.
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