Advances in Structure Research by Diffraction Methods (eBook)

Fortschritte der Strukturforschung mit Beugungsmethoden

R. Brill, R. Mason (Herausgeber)

eBook Download: PDF

2013 | 1. Auflage
256 Seiten
Elsevier Science (Verlag)
978-1-4831-5228-8 (ISBN)

Infos

Advances in Structure Research by Diffraction Methods reviews advances in the use of diffraction methods in structure research. Topics covered include the dynamical theory of X-ray diffraction, with emphasis on Ewald waves in theory and experiment; dynamical theory of electron diffraction; small angle scattering; and molecular packing. This book is comprised of four chapters and begins with an overview of the dynamical theory of X-ray diffraction, especially in terms of how it explains all the absorption and propagation properties of X-rays at the Bragg setting in a perfect crystal. The next chapter describes the dynamical theory of electron diffraction, paying particular attention to unconventional structure analysis in connection with the problems of absorption. The most important features of the background of small angle analysis are then examined, and some examples showing the direct analysis of small angle scattering (sometimes in combination with wide angle scattering) are provided. The last chapter deals with crystals built from molecules and their peculiar geometrical features. The principle of close packing of molecules in an organic crystal is also described, along with lattice dynamics, hydrogen bonds in crystals, and the rotational crystalline state. This monograph will be a useful resource for practitioners and researchers in physics and crystallography.

Inhalt

Front Cover 1
Advances in Structure Research by Diffraction Methods 
2 
Copyright Page 3
Table of Contents 4
Advances in Structure Research by Diffraction Methods 
6 
I Bases of the dynamical theory 6
II Plane wave case 17
III Propagation of real waves 34
IV Generalized Diffraction Theory 45
V Conclusion 54
References 54
Chapter 2. Dynamical Theory of Electron Diffraction 58
I. Introduction 58
II. Theory 60
III. Comparison with Experiments 80
References 102
Chapter 3. Small Angle Scattering 106
1. Introduction 106
2. Background of small angle analysis 107
3. Continuous small angle scattering. Particle scattering 113
4. Discontinuous small angle scattering 122
6. Combination of continuous and discontinuous diffraction phenomena 131
8. Further applications 142
References 146
Chapter 4. General View on Molecular Packing 178
1. Introduction 178
2. Geometrical model of an organic crystal 180
3. Physical model 186
4. Energy of interaction of molecules in a crystal. Atom — atompotentials 191
5. Energy of electrostatic interaction 196
6. The calculation of structure and properties with the help ofatom-atom potentials 200
7. Condition of structural stability of organic crystal and the principleof close packing 215
8. Effect of crystalline field on the shape of molecule 217
9. Lattice dynamics 223
10. Crystals with disorder elements 228
11. Rotational crystalline state 231
12. Hydrogen bonds in crystals 235
13. Two-component systems. Solid solutions 236
14. Binary Crystals. Molecular Compounds 242
15. Structures of Crystal Polymers 244
References 250
Subject index 253

Produkt-Details

• Erscheint lt. Verlag: 22.10.2013
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Chemie ► Physikalische Chemie
• Themenwelt: Naturwissenschaften ► Geowissenschaften ► Mineralogie / Paläontologie
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik
• Themenwelt: Technik
• ISBN-10: 1-4831-5228-6 / 1483152286
• ISBN-13: 978-1-4831-5228-8 / 9781483152288