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- https://chem.libretexts.org/Courses/University_of_California_Davis/Chem_124A%3A_Fundamentals_of_Inorganic_Chemistry/07%3A_Solids/7.02%3A_Solids/7.2.03%3A_Stucture_of_Simple_Binary_CompoundsWe examine only one other structure of the many that are known, the perovskite structureA structure that consists of a bcc array of two metal ions, with one set (M) located at the corners of the cube,...We examine only one other structure of the many that are known, the perovskite structureA structure that consists of a bcc array of two metal ions, with one set (M) located at the corners of the cube, and the other set (M′) in the centers of the cube.. Perovskite is the generic name for oxides with two different kinds of metal and have the general formula MM′O 3 , such as CaTiO 3 . The structure is a body-centered cubic (bcc) array of two metal ions, with one M (Ca in this case) located at the …
- https://chem.libretexts.org/Courses/BethuneCookman_University/BCU%3A_CH-346_Instrumental_Analysis/Diffraction_Scattering_Techniques/X-ray_CrystallographyX-ray Crystallography is a scientific method used to determine the arrangement of atoms of a crystalline solid in three dimensional space. This technique takes advantage of the interatomic spacing of ...X-ray Crystallography is a scientific method used to determine the arrangement of atoms of a crystalline solid in three dimensional space. This technique takes advantage of the interatomic spacing of most crystalline solids by employing them as a diffraction gradient for x-ray light, which has wavelengths on the order of 1 angstrom (10-8 cm).
- https://chem.libretexts.org/Courses/Lafayette_College/CHEM_440%3A_Structure_Determination/04%3A_X-ray_Crystallography/4.01%3A_BackgroundThe X-ray beams travel different pathlengths before hitting the various planes of the crystal, so after diffraction, the beams will interact constructively only if the path length difference is equal ...The X-ray beams travel different pathlengths before hitting the various planes of the crystal, so after diffraction, the beams will interact constructively only if the path length difference is equal to an integer number of wavelengths (just like in the normal diffraction case above).
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/31%3A_Solids_and_Surface_Chemistry/31.05%3A_The_Structure_Factor_and_the_Electron_Density_Are_Related_by_a_Fourier_TransformThis page explains the Fourier transform as a mathematical tool that transitions functions from the time to the frequency domain, similar to translating music notes to sound. In x-ray diffraction, it ...This page explains the Fourier transform as a mathematical tool that transitions functions from the time to the frequency domain, similar to translating music notes to sound. In x-ray diffraction, it aids in determining electron density around atoms by expanding functions, resulting in complex structure factors that link diffracted beam intensity to atomic positions. It also discusses iterative refinements for enhancing models using experimental data.
- https://chem.libretexts.org/Courses/Lafayette_College/CHEM_212_213%3A_Inorganic_Chemistry_(Nataro)/03%3A_Solid_state/3.09%3A_X-ray_CrystallographyThe X-ray beams travel different pathlengths before hitting the various planes of the crystal, so after diffraction, the beams will interact constructively only if the path length difference is equal ...The X-ray beams travel different pathlengths before hitting the various planes of the crystal, so after diffraction, the beams will interact constructively only if the path length difference is equal to an integer number of wavelengths (just like in the normal diffraction case above).
- https://chem.libretexts.org/Courses/Williams_School/Advanced_Chemistry/17%3A_Crystallography/17.04%3A_X-ray_DiffractionThe construction of a simple powder diffractometer was first described by Hull in 19171 which was shortly after the discovery of X-rays by Wilhelm Conrad Röntgen in 18952. Diffractometer measures the ...The construction of a simple powder diffractometer was first described by Hull in 19171 which was shortly after the discovery of X-rays by Wilhelm Conrad Röntgen in 18952. Diffractometer measures the angles at which X-rays get reflected and thus get the structural information they contains. Nowadays resolution of this technique get significant improvement and it is widely used as a tool to analyze the phase information and solve crystal structures of solid-state materials.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Instrumental_Analysis_(LibreTexts)/12%3A_Atomic_X-Ray_Spectrometry
- https://chem.libretexts.org/Courses/Prince_Georges_Community_College/CHEM_2000%3A_Chemistry_for_Engineers_(Sinex)/Unit_3%3A_States_of_Matter/Chapter_8%3A_Solids/Chapter_12.03%3A_Stucture_of_Simple_Binary_CompoundsWe examine only one other structure of the many that are known, the perovskite structureA structure that consists of a bcc array of two metal ions, with one set (M) located at the corners of the cube,...We examine only one other structure of the many that are known, the perovskite structureA structure that consists of a bcc array of two metal ions, with one set (M) located at the corners of the cube, and the other set (M′) in the centers of the cube.. Perovskite is the generic name for oxides with two different kinds of metal and have the general formula MM′O 3 , such as CaTiO 3 . The structure is a body-centered cubic (bcc) array of two metal ions, with one M (Ca in this case) located at the …
- https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Basic_Principles_of_Organic_Chemistry_(Roberts_and_Caserio)/09%3A_Separation_Purification_and_Identification_of_Organic_Compounds/9.04%3A_Why_Can't_We_See_MoleculesThe most straightforward way to determine the structures of molecules would be to "see" how the nuclei are arranged and how the electrons are distributed. This is not possible with visible light, beca...The most straightforward way to determine the structures of molecules would be to "see" how the nuclei are arranged and how the electrons are distributed. This is not possible with visible light, because the wavelengths of visible light are very much longer than the usual molecular dimensions. A beam of electrons can have the requisite short wavelengths, but small organic molecules are destroyed rapidly by irradiation with electrons of the proper wavelengths.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Analytical_Sciences_Digital_Library/Courseware/Introduction_to_X-ray_Diffraction_(XRD)/03_Basic_Theory/03_CrystallographyCrystallography diffraction data provides information on the structures of crystalline solids The symmetry in structures shows itself in the diffraction by the appearance and disappearance of charact...Crystallography diffraction data provides information on the structures of crystalline solids The symmetry in structures shows itself in the diffraction by the appearance and disappearance of characteristic reflections. The intensity of the diffracted beams depends on the arrangement and atomic number of the atoms in the repeating motif, called the unit cell. Unit cells describe the symmetry of all structures.
- https://chem.libretexts.org/Courses/Williams_School/Chemistry_II/13%3A_Crystallography/13.04%3A_X-ray_DiffractionThe construction of a simple powder diffractometer was first described by Hull in 19171 which was shortly after the discovery of X-rays by Wilhelm Conrad Röntgen in 18952. Diffractometer measures the ...The construction of a simple powder diffractometer was first described by Hull in 19171 which was shortly after the discovery of X-rays by Wilhelm Conrad Röntgen in 18952. Diffractometer measures the angles at which X-rays get reflected and thus get the structural information they contains. Nowadays resolution of this technique get significant improvement and it is widely used as a tool to analyze the phase information and solve crystal structures of solid-state materials.
