Record Nr.

UNINA9911006800203321

Autore

Sands Donald E

Titolo

Introduction to Crystallography

Pubbl/distr/stampa


Newburyport, : Dover Publications, 2012

ISBN

9780486136806

0486136809

9781621986508

1621986500

Edizione

[1st ed.]

Descrizione fisica

1 online resource (248 p.)

Collana

Dover Books on Chemistry

Disciplina

548

Soggetti

Crystallography

Chemical & Materials Engineering

Engineering & Applied Sciences

Materials Science

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di contenuto

DOVER SCIENCE BOOKS; INTRODUCTION TO CRYSTALLOGRAPHY; Title Page; Copyright Page; Preface; Table of Contents; Chapter 1 - CRYSTALS AND LATTICES; 1-1 Definition of a crystal; 1-2 Lattice points; 1-3 Unit cells; 1-4 Fractional coordinates; 1-5 Unit cell calculations; 1-6 Primitive and centered cells; Chapter 2 - SYMMETRY; 2-1 Introduction.; 2-2 Definition of symmetry; 2-3 Symmetry operations and elements of symmetry; 2-4 Rotation axes; 2-5 Mirror planes; 2-6 Identity; 2-7 Center of symmetry; 2-8 Improper rotation axes; 2-9 Point symmetry; 2-10 Combinations of symmetry elements

2-11 Point groups2-12 Group multiplication table; 2-13 Point group nomenclature; 2-14 Determination of point groups,; 2-15 Limitation on combinations of symmetry elements; Chapter 3 - CRYSTAL SYSTEMS AND GEOMETRY; 3-1 Classification of unit cells; 3-2 Restrictions imposed by symmetry on unit cell dimensions; 3-3 Crystal systems; 3 - 4 Limitations on symmetry in crystals; 3-5 Hermann-Mauguin notation; 3-6 Bravais lattices; 3-7 Distinction between trigonal and hexagonal systems; 3-8 Crystal planes and indices; 3-9 Law of rational indices; 3-10 Interplanar spacings

Chapter 4 - SPACE GROUPS AND EQUIVALENT POSITIONS4-1 Translational symmetry; 4-2 Screw axes; 4-3 Glide planes; 4-4 Space groups; 4-5 Relationship between space groups, point groups, and physical properties; 4-6 Equivalent positions; 4-7 Special positions; 4-8 Space group tables in International Tables for X-ray Crystallography; 4-9 Examples of the use of space group tables; 4-10 Equivalent positions and the choice of origin; Chapter 5 - X - RAY DIFFRACTION; 5-1 Periodicity and structural information; 5-2 The diffraction grating; 5-3 Diffraction of X rays by crystals; 5-4 The Laue equations

5-5 Rotating crystal method5-6 Bragg's law; 5-7 Generalization of Miller indices; 5-8 Weissenberg camera; 5-9 Buerger precession camera; 5-10 Comparison of Weissenberg and precession techniques; 5-11 Information obtained from diffraction patterns; 5-12 Electron density function; 5-13 Fourier series; 5-14 Fourier expansion of electron density; 5-15 Intensities of diffraction spots; 5-16 The phase problem; 5-17 Calculation of structure factors; 5-18 Effect of thermal vibration; 5-19 Structure factors of centrosymmetric crystals; 5-20 Friedel's law; 5-21 Laue groups

5-.22 Structure factors of sodium chloride5-23 Extinctions due to glide planes; 5-24 Extinctions due to screw axes; Chapter 6 - DETERMINATION OF ATOMIC POSITIONS; 6-1 Solutions of structure factor equations.; 6-2 The Patterson function; 6-3 Heavy-atom methods; 6-4 Isomorphous replacement; 6-5 Superposition methods; 6-6 Inequalities; 6-7 Sayre-Cochran-Zachariasen relationship; 6-8 Hauptman-Karle methods; 6-9 Summary of phase-determining methods; 6-10 Refinement; Chapter 7 - SOME SIMPLE STRUCTURES; 7-1 Close packing; 7-2 Cubic close packing; 7-3 Hexagonal close-packed structure

7-4 Body-centered cubic

Sommario/riassunto

""This is truly a delightful monograph."" - Canadian Chemical EducationDesigned as a useful, accessible introduction to the logical development of basic crystallographic concepts, this book presents important principles in a clear, concise manner that will enable the nonspecialist to read and comprehend crystallographic literature. Explanations are concise and mathematical prerequisites have been kept to a minimum.In the first four chapters, the author presents the vocabulary of crystallography, with discussions of lattice points, unit cells, symmetry, point groups, crystal systems, space gr

Record Nr.

UNINA9911041328103321

Autore

Olsson, Michael

Titolo

Kompakt-Lexikon Umwelt- und Wirtschaftspolitik / Michael Olsson, Dirk Piekenbrock

Pubbl/distr/stampa


Bonn, : Bundeszentrale für Politische Bildung, 1993

ISBN

3-89331-178-5

Descrizione fisica

396 p. : ill. ; 19 cm

Altri autori (Persone)

Piekenbrock, Dirk

Locazione

FSPBC

Collocazione

Fondo Mango 196