Edit topic "Chemistry" Accepted
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Add Spectral database for organic compounds SDBS
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- Spectral database for organic compounds SDBS
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- An integrated spectral database system for organic compounds, which includes six different types of spectra under a directory of the compounds.
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- https://sdbs.db.aist.go.jp/sdbs/cgi-bin/cre_index.cgi
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Add PLATON documentation
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- PLATON documentation
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- PLATON brings together, in the context of a single program, a large variety of tools to be used in the process of a single crystal structure determination. This manual only discusses the available tools for the calculation and analysis of the geometrical results. Other implemented tools are documented elsewhere. PLATON may be used in conjunction with and complements structure determination programs such as SHELXS-97 and refinement programs such as SHELXL-97. The build-in PLUTON link may be used with the same data files for more elaborate graphics such as molecule packing plots. PLATON is designed for the automated generation of a variety of geometrical entities such as bond distances, bond angles, torsion angles, least-squares planes and ring-puckering parameters. All derived parameters are accompanied by standard deviations that are calculated by numerical methods from the supplied standard deviations in the primary input parameters.
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- https://www.platonsoft.nl/platon/pl040000.html
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Update Chemistry
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- Chemistry
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- Chemistry
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- Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant chemistry (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (astrophysics), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).
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- https://en.wikipedia.org/?curid=5180
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Add PLATON
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- PLATON
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- PLATON is a versatile SHELXL compatible multipurpose crystallographic tool. Most PLATON features complement those available in the excellent and widely distributed SHELX2018 and later package for crystal structure determination and refinement. Historically (1980) PLATON started out as a program for the automated calculation of derived geometrical data (i.e. bond distances, bond angles and torsion angles, including su's (esd's)) for structures refined with SHELX76. Since then, that basic function evolved into an automatic function to calculate everything of possible interest (both intra- and intermolecular) for a given structural parameter set (Instruction: CALC). Over time, various other tools were introduced (Molecular Graphics i.e. PLUTON & ORTEP, Absorption correction, Data Validation etc.), some of which requiring a reflection datafile as well.
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- https://www.platonsoft.nl/platon/pl002000.html
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Add Nuclear magnetic resonance spectroscopy
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- Nuclear magnetic resonance spectroscopy
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- Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei. The sample is placed in a magnetic field and the NMR signal is produced by excitation of the nuclei sample with radio waves into nuclear magnetic resonance, which is detected with sensitive radio receivers. The intramolecular magnetic field around an atom in a molecule changes the resonance frequency, thus giving access to details of the electronic structure of a molecule and its individual functional groups. As the fields are unique or highly characteristic to individual compounds, in modern organic chemistry practice, NMR spectroscopy is the definitive method to identify monomolecular organic compounds. Similarly, biochemists use NMR to identify proteins and other complex molecules.
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- https://en.wikipedia.org/?curid=1908527
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Add X-ray spectroscopy
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- X-ray spectroscopy
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- X-ray spectroscopy is a general term for several spectroscopic techniques for characterization of materials by using x-ray excitation.
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- https://en.wikipedia.org/?curid=1063456
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Add Crystallography
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- Crystallography
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- Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids (see crystal structure). The word "crystallography" is derived from the Greek words crystallon "cold drop, frozen drop", with its meaning extending to all solids with some degree of transparency, and graphein "to write". In July 2012, the United Nations recognised the importance of the science of crystallography by proclaiming that 2014 would be the International Year of Crystallography.Before the development of X-ray diffraction crystallography (see below), the study of crystals was based on physical measurements of their geometry using a goniometer. This involved measuring the angles of crystal faces relative to each other and to theoretical reference axes (crystallographic axes), and establishing the symmetry of the crystal in question.
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- https://en.wikipedia.org/?curid=7794
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Add Spectroscopy
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- Spectroscopy
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- Spectroscopy is the study of the interaction between matter and electromagnetic radiation (via electron spectroscopy, atomic spectroscopy, etc). Historically, spectroscopy originated through the study of visible light dispersed according to its wavelength, by a prism. Later the concept was expanded greatly to include any interaction with radiative energy as a function of its wavelength or frequency, predominantly in the electromagnetic spectrum, although matter waves and acoustic waves can also be considered forms of radiative energy; recently, with tremendous difficulty, even gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) and laser interferometry. Spectroscopic data are often represented by an emission spectrum, a plot of the response of interest, as a function of wavelength or frequency.
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- https://en.wikipedia.org/?curid=27752
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Add Inorganic chemistry
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- Inorganic chemistry
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- Inorganic chemistry deals with synthesis and behavior of inorganic and organometallic compounds. This field covers all chemical compounds except the myriad of organic compounds (carbon-based compounds, usually containing C-H bonds), which are the subjects of organic chemistry. The distinction between the two disciplines is far from absolute, as there is much overlap in the subdiscipline of organometallic chemistry. It has applications in every aspect of the chemical industry, including catalysis, materials science, pigments, surfactants, coatings, medications, fuels, and agriculture.
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- https://en.wikipedia.org/?curid=14624
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Add Analytical chemistry
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- Analytical chemistry
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- Analytical chemistry studies and uses instruments and methods used to separate, identify, and quantify matter. In practice, separation, identification or quantification may constitute the entire analysis or be combined with another method. Separation isolates analytes. Qualitative analysis identifies analytes, while quantitative analysis determines the numerical amount or concentration. Analytical chemistry consists of classical, wet chemical methods and modern, instrumental methods. Classical qualitative methods use separations such as precipitation, extraction, and distillation. Identification may be based on differences in color, odor, melting point, boiling point, radioactivity or reactivity. Classical quantitative analysis uses mass or volume changes to quantify amount. Instrumental methods may be used to separate samples using chromatography, electrophoresis or field flow fractionation.
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- https://en.wikipedia.org/?curid=2408
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Add X-ray crystallography
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- X-ray crystallography
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- X-ray crystallography (XRC) is the experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the crystal. From this electron density, the mean positions of the atoms in the crystal can be determined, as well as their chemical bonds, their crystallographic disorder, and various other information. Since many materials can form crystals—such as salts, metals, minerals, semiconductors, as well as various inorganic, organic, and biological molecules—X-ray crystallography has been fundamental in the development of many scientific fields.
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- https://en.wikipedia.org/?curid=34151
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Delete Chemistry (detached) A More Accurate Method To Estimate Glomerular Filtration Rate from Serum Creatinine: A New Prediction Equation
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Delete Chemistry (detached) Principles of fluorescence spectroscopy
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Delete Chemistry (detached) Molecular cloning: A laboratory manual 2nd ed. Edited by J. . Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY, 198
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Delete Chemistry (detached) The Protein Data Bank
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Delete Chemistry (detached) Systematic and integrative analysis of large gene lists using DAVID bioinformatics resources
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Delete Chemistry (detached) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye bi
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Delete Chemistry (detached) Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4
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Add PLATON has official PLATON documentation
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Add Chemistry treated in Introduction to Chemistry: Structures and Solutions
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Add Nuclear magnetic resonance spectroscopy treated in Spectral database for organic compounds SDBS
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Add X-ray crystallography uses PLATON
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Add Inorganic chemistry parent of Crystallography
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Add Crystallography e.g. X-ray crystallography
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Add Chemistry parent of Inorganic chemistry
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Add Spectroscopy e.g. Nuclear magnetic resonance spectroscopy
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Add Analytical chemistry parent of Spectroscopy
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Add Spectroscopy e.g. X-ray spectroscopy
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