Interpretation of crystal structure determinations
Interpretation of crystal structure determinations
Interpretation of crystal structure determinations
This note is an
illustration of the basic principles of X-ray crystal and provides an overview
of the successive stages of a crystal structure determination. Topics covered
includes:crystallization, diffraction, structure determination, symmetry,
intramolecular geometry, including thermal motion analysis, graphics, intermolecular geometry, including hydrogen bonding, miscellaneous
subjects, including powder diffraction, graph sets, twinning, absolute
configuration, data bases, validation, -ray crystallography and chemical
bonding.
This PDF covers the following topics related to
Crystallization and Materials Science of Modern Artificial and Natural Crystals
: Crystallographic Observation and Delamination Damage Analyses for Thermal
Barrier Coatings Under Thermal Exposure, Nucleation and Crystal Growth in Phase
Separated Glasses in the Lithium Silicate System, Elaboration of a Specific
Class of Metamaterial: Glass in Single Crystal, Inorganic/Organic Materials for
High Technology, Effect of Amino Acid Additives on Crystal Growth Parameters and
Properties of Ammonium Dihydrogen Phosphate Crystals, Topochemical Conversion of
Inorganic–Organic Hybrid Compounds into Low-Dimensional Inorganic Nanostructures
with Smart Control in Crystal-Sizes and Shapes, Synthesis of Cobalt-Zinc
Phosphates Templated by Polyamines , Biomineralization, Unusual Crystal
Formation in Organisms - Exceptions that Confirm Biomineralization Rules,
Biomimetic and Bioinspired Crystallization with Macromolecular Additives,
Crystal Growth for Health Protection, etc.
This note is an
illustration of the basic principles of X-ray crystal and provides an overview
of the successive stages of a crystal structure determination. Topics covered
includes:crystallization, diffraction, structure determination, symmetry,
intramolecular geometry, including thermal motion analysis, graphics, intermolecular geometry, including hydrogen bonding, miscellaneous
subjects, including powder diffraction, graph sets, twinning, absolute
configuration, data bases, validation, -ray crystallography and chemical
bonding.
This lecture covers the
following topics: X-ray diffraction: symmetry, space groups, geometry of
diffraction, structure factors, phase problem, direct methods, Patterson
methods, electron density maps, structure refinement, how to grow good crystals,
powder methods, limits of X-ray diffraction methods, and structure data bases.
This note covers the
following topics: Structural Dilemma -Isomers, X-Ray results, Crystal lattice
and unit cell, Unit cell choice, The seven crystal systems, Space groups in 3D,
Bragg’s law, Orthorhombic direct and reciprocal cell, Reciprocal lattice, Ewald
sphere, X-Ray diffractometer.
This note covers the
following topics related to crystal chemistry of protein: diffraction, fourier
transform, structure factor statistics, phasing, molecular replacement, density
modification and refinement.
This lecture covers the following topics: X-ray diffraction:
symmetry, space groups, geometry of diffraction, structure factors, phase
problem, direct methods, Patterson methods, electron density maps, structure
refinement, how to grow good crystals, powder methods, limits of X-ray
diffraction methods, and structure data bases.