Crystallography

The International Union of Crystallography (IUCr) is a member of the International Council for Science (ICSU) and exists to serve the world community of crystallographers.

Powder diffraction is a scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization of materials.

Crystallography is the experimental science of determining the arrangement of atoms in the crystalline solids (see crystal structure).

A single crystal or monocrystalline solid is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges of the sample, with no grain boundaries.

A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

A quasiperiodic crystal, or quasicrystal, is a structure that is ordered but not periodic.

Crystallization is the (natural or artificial) process where a solid forms where the atoms or molecules are highly organized in a structure known as a crystal.

In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.

In geometry, a point group is a group of geometric symmetries (isometries) that keep at least one point fixed.

Epitaxy refers to the deposition of a crystalline overlayer on a crystalline substrate.

The Scherrer equation, in X-ray diffraction and crystallography, is a formula that relates the size of sub-micrometre particles, or crystallites, in a solid to the broadening of a peak in a diffraction pattern.

Neutron scattering, the scattering of free neutrons by matter, can refer to either the physical process or the experimental technique which uses this process for the investigation of materials.

A crystal is a solid material whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions.

Bilbao Crystallographic Server is an open access website offering online crystallographic database and programs aimed at analyzing, calculating and visualizing problems of structural and mathematical crystallography, solid state physics and structural chemistry.

The Journal of Chemical Crystallography is a peer-reviewed scientific journal publishing original (primary) research and review articles on crystallography and spectroscopy.

The Cambridge Structural Database (CSD) is both a repository and a validated and curated resource for the three-dimensional structural data of molecules generally containing at least carbon and hydrogen, comprising a wide range of organic, metal-organic and organometallic molecules.

Friedel's salt is an anion exchanger mineral belonging to the family of the layered double hydroxides (LDHs).

Crystallography Reviews is a quarterly peer-reviewed scientific journal publishing review articles on all aspects of crystallography.

The Protein Common Interface Database (ProtCID) is a database of similar protein-protein interfaces in crystal structures of homologous proteins.

X-ray crystallography is a tool used for identifying the atomic and molecular structure of a crystal, in which the crystalline atoms cause a beam of incident X-rays to diffract into many specific directions.

In geometry, the stereographic projection is a particular mapping (function) that projects a sphere onto a plane.

In mathematics, physics and chemistry, a space group is the symmetry group of a configuration in space, usually in three dimensions.

The Cauchy–Born rule or Cauchy-Born approximation is a basic hypothesis used in the mathematical formulation of solid mechanics which relates the movement of atoms in a crystal to the overall deformation of the bulk solid.

The Collaborative Computational Project Number 4 in protein crystallography or (CCP4) was set up in 1979 in the United Kingdom to support collaboration between researchers working in software development and assemble a comprehensive collection of software for structural biology.

Diffraction topography (short: "topography") is an quantum beam imaging technique based on Bragg diffraction.