152 relations: Actinide, Activated complex, Alfred Werner, Alkali metal, Alkaline earth metal, Alkene, Allotropes of oxygen, Alloy, Aluminium chloride, Angewandte Chemie, Antibonding molecular orbital, Antiferromagnetism, Aqueous geochemistry, Atom, Atomic absorption spectroscopy, Bent molecular geometry, Bioinorganic chemistry, Bioorganometallic chemistry, Bridging ligand, Capped square antiprismatic molecular geometry, Carboxypeptidase, Catalase, Catalysis, Charge-transfer complex, Chelation, Chemical bond, Chemical compound, Chemical reaction, Chemistry, Chirality (chemistry), Chloride, Chlorin, Chlorine, Chlorophyll, Christian Wilhelm Blomstrand, Cis-Dichlorobis(ethylenediamine)cobalt(III) chloride, Cis–trans isomerism, Cofactor (biochemistry), Computational chemistry, Coordinate covalent bond, Coordination cage, Coordination geometry, Coordination isomerism, Coordination number, Coordination polymer, Coordination sphere, Covalent bond, Crystal field theory, Cyanide, Cyclopentadienyliron dicarbonyl dimer, ..., Cytochrome, Delta (letter), Denticity, Dimer (chemistry), Dissolved organic carbon, Electron configuration, Electron transfer, Ethylene, Ethylenediamine, Ethylenediaminetetraacetic acid, Ferromagnetism, Ground state, Group theory, Hans Bethe, Heme, Hemoglobin, Henry Taube, Hexamminecobalt(III) chloride, Hexol, Homogeneous catalysis, Hydroformylation, Hydrogen peroxide, Hydrogenation, Hydrometallurgy, Inclusion compound, Inductively coupled plasma atomic emission spectroscopy, Inductively coupled plasma mass spectrometry, Inner sphere electron transfer, Inorganic Chemistry (journal), Ion, Iron–sulfur protein, Isomer, IUPAC nomenclature of inorganic chemistry, Jahn–Teller effect, Lambda, Lanthanide, Laporte rule, Ligand, Ligand field theory, Linear molecular geometry, Linkage isomerism, Lone pair, Magnetism, Materials science, Mercury (element), Mercury sulfide, Metal, Metal ammine complex, Metal aquo complex, Metalloid, Methyl group, Mineralogy, Molecular orbital, Molecular orbital theory, Molecule, Mu (letter), Octahedral molecular geometry, Optical rotation, Organometallic chemistry, Orthogonality, Outer sphere electron transfer, Paramagnetism, Pentagonal bipyramidal molecular geometry, Phthalocyanine, Pi bond, Plasma (physics), Polarization (waves), Polyhedron, Polymerization, Porphyrin, Potassium ferrioxalate, Prussian blue, Qualitative inorganic analysis, Quantum mechanics, Redox, Solid-state chemistry, Sophus Mads Jørgensen, Spin states (d electrons), Square antiprismatic molecular geometry, Square planar molecular geometry, Square pyramidal molecular geometry, Stability constants of complexes, Stereoisomerism, Stoichiometry, Structural isomer, Tanabe–Sugano diagram, Tetrahedral molecular geometry, Three-center two-electron bond, Transition metal, Triaugmented triangular prism, Tricapped trigonal prismatic molecular geometry, Trigonal bipyramidal molecular geometry, Trigonal planar molecular geometry, Trigonal prismatic molecular geometry, Trigonal pyramidal molecular geometry, Triplet oxygen, Ultraviolet–visible spectroscopy, Vitamin B12, Water of crystallization, Zeise's salt, Ziegler–Natta catalyst, 18-electron rule. Expand index (102 more) »
Actinide
The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
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Activated complex
In chemistry an activated complex is defined by the International Union of Pure and Applied Chemistry (IUPAC) as "that assembly of atoms which corresponds to an arbitrary infinitesimally small region at or near the col (saddle point) of a potential energy surface".
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Alfred Werner
Alfred Werner (12 December 1866 – 15 November 1919) was a Swiss chemist who was a student at ETH Zurich and a professor at the University of Zurich.
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Alkali metal
The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K),The symbols Na and K for sodium and potassium are derived from their Latin names, natrium and kalium; these are still the names for the elements in some languages, such as German and Russian.
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Alkaline earth metal
The alkaline earth metals are six chemical elements in group 2 of the periodic table.
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Alkene
In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon–carbon double bond.
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Allotropes of oxygen
There are several known allotropes of oxygen.
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Alloy
An alloy is a combination of metals or of a metal and another element.
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Aluminium chloride
Aluminium chloride (AlCl3) is the main compound of aluminium and chlorine.
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Angewandte Chemie
Angewandte Chemie (meaning "Applied Chemistry") is a weekly peer-reviewed scientific journal that is published by Wiley-VCH on behalf of the German Chemical Society (Gesellschaft Deutscher Chemiker).
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Antibonding molecular orbital
In chemical bonding theory, an antibonding orbital is a type of molecular orbital (MO) that weakens the bond between two atoms and helps to raise the energy of the molecule relative to the separated atoms.
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Antiferromagnetism
In materials that exhibit antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of electrons, align in a regular pattern with neighboring spins (on different sublattices) pointing in opposite directions.
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Aqueous geochemistry
Aqueous geochemistry studies the role of various elements in watersheds, including copper, sulfur, and mercury.
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Atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
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Atomic absorption spectroscopy
Atomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state.
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Bent molecular geometry
In chemistry, the term "bent" can be applied to certain molecules to describe their molecular geometry.
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Bioinorganic chemistry
Bioinorganic chemistry is a field that examines the role of metals in biology.
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Bioorganometallic chemistry
Bioorganometallic chemistry is the study of biologically active molecules that contain carbon directly bonded to metals or metalloids.
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Bridging ligand
In coordination chemistry, a bridging ligand is a ligand that connects two or more atoms, usually metal ions.
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Capped square antiprismatic molecular geometry
In chemistry, the capped square antiprismatic molecular geometry describes the shape of compounds where nine atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a gyroelongated square pyramid.
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Carboxypeptidase
A carboxypeptidase (EC number 3.4.16 - 3.4.18) is a protease enzyme that hydrolyzes (cleaves) a peptide bond at the carboxy-terminal (C-terminal) end of a protein or peptide.
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Catalase
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals).
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Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalysthttp://goldbook.iupac.org/C00876.html, which is not consumed in the catalyzed reaction and can continue to act repeatedly.
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Charge-transfer complex
A charge-transfer complex (CT complex) or electron-donor-acceptor complex is an association of two or more molecules, or of different parts of one large molecule, in which a fraction of electronic charge is transferred between the molecular entities.
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Chelation
Chelation is a type of bonding of ions and molecules to metal ions.
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Chemical bond
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.
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Chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
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Chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
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Chemistry
Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds.
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Chirality (chemistry)
Chirality is a geometric property of some molecules and ions.
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Chloride
The chloride ion is the anion (negatively charged ion) Cl−.
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Chlorin
In organic chemistry, a chlorin is a large heterocyclic aromatic ring consisting, at the core, of three pyrroles and one pyrroline coupled through four CH- linkages.
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Chlorine
Chlorine is a chemical element with symbol Cl and atomic number 17.
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Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
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Christian Wilhelm Blomstrand
Christian Wilhelm Blomstrand (20 October 1826 – 5 November 1897) was a Swedish mineralogist and chemist.
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Cis-Dichlorobis(ethylenediamine)cobalt(III) chloride
cis-Dichlorobis(ethylenediamine)cobalt(III) chloride is a coordination complex with the formula Cl (en.
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Cis–trans isomerism
Cis–trans isomerism, also known as geometric isomerism or configurational isomerism, is a term used in organic chemistry.
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Cofactor (biochemistry)
A cofactor is a non-protein chemical compound or metallic ion that is required for an enzyme's activity.
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Computational chemistry
Computational chemistry is a branch of chemistry that uses computer simulation to assist in solving chemical problems.
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Coordinate covalent bond
A coordinate covalent bond, also known as a dative bond or coordinate bond is a kind of 2-center, 2-electron covalent bond in which the two electrons derive from the same atom.
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Coordination cage
Coordination cages are three-dimensional ordered structures in solution that act as hosts in host-guest chemistry.
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Coordination geometry
The term coordination geometry is used in a number of related fields of chemistry and solid state chemistry/physics.
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Coordination isomerism
Coordination isomerism is a form of structural isomerism in which the composition of the complex ion varies.
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Coordination number
In chemistry, crystallography, and materials science the coordination number, also called ligancy, of a central atom in a molecule or crystal is the number of atoms, molecules or ions bonded to it.
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Coordination polymer
A coordination polymer is an inorganic or organometallic polymer structure containing metal cation centers linked by ligands.
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Coordination sphere
In coordination chemistry, the coordination sphere refers to a central atom or ion and an array of molecules or anions, the ligands, around.
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Covalent bond
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.
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Crystal field theory
Crystal Field Theory (CFT) is a model that describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution (anion neighbors).
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Cyanide
A cyanide is a chemical compound that contains the group C≡N.
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Cyclopentadienyliron dicarbonyl dimer
Cyclopentadienyliron dicarbonyl dimer is an organometallic compound with the formula (η5-C5H5)2Fe2(CO)4, also abbreviated Cp2Fe2(CO)4.
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Cytochrome
Cytochromes are heme-containing proteins.
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Delta (letter)
Delta (uppercase Δ, lowercase δ or 𝛿; δέλτα délta) is the fourth letter of the Greek alphabet.
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Denticity
Denticity refers to the number of donor groups in a single ligand that bind to a central atom in a coordination complex.
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Dimer (chemistry)
A dimer (di-, "two" + -mer, "parts") is an oligomer consisting of two monomers joined by bonds that can be either strong or weak, covalent or intermolecular.
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Dissolved organic carbon
Dissolved organic carbon (DOC), sometimes known as dissolved organic material (DOM), is a broad classification for organic molecules of varied origin and composition within aquatic systems.
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Electron configuration
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.
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Electron transfer
Electron transfer (ET) occurs when an electron relocates from an atom or molecule to another such chemical entity.
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Ethylene
Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula or H2C.
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Ethylenediamine
Ethylenediamine (abbreviated as en when a ligand) is the organic compound with the formula C2H4(NH2)2.
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Ethylenediaminetetraacetic acid
Ethylenediaminetetraacetic acid (EDTA), also known by several other names, is a chemical originating in multiseasonal plants with dormancy stages as a lipidopreservative which helps to develop the stem, currently used for both industrial and medical purposes.
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Ferromagnetism
Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets.
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Ground state
The ground state of a quantum mechanical system is its lowest-energy state; the energy of the ground state is known as the zero-point energy of the system.
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Group theory
In mathematics and abstract algebra, group theory studies the algebraic structures known as groups.
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Hans Bethe
Hans Albrecht Bethe (July 2, 1906 – March 6, 2005) was a German-American nuclear physicist who made important contributions to astrophysics, quantum electrodynamics and solid-state physics, and won the 1967 Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis.
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Heme
Heme or haem is a coordination complex "consisting of an iron ion coordinated to a porphyrin acting as a tetradentate ligand, and to one or two axial ligands." The definition is loose, and many depictions omit the axial ligands.
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Hemoglobin
Hemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.
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Henry Taube
Henry Taube, Ph.D, M.Sc, B.Sc., FRSC (November 30, 1915 – November 16, 2005) was a Canadian-born American chemist noted for having been awarded the 1983 Nobel Prize in Chemistry for "his work in the mechanisms of electron-transfer reactions, especially in metal complexes." He was the second Canadian-born chemist to win the Nobel Prize, and remains the only Saskatchewanian-born Nobel laureate.
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Hexamminecobalt(III) chloride
Hexaamminecobalt(III) chloride is the chemical compound with the formula Cl3.
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Hexol
Hexol is the name for various salts of a coordination complex that has historical significance.
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Homogeneous catalysis
In chemistry, homogeneous catalysis is catalysis in a solution by a soluble catalyst.
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Hydroformylation
Hydroformylation, also known as oxo synthesis or oxo process, is an industrial process for the production of aldehydes from alkenes.
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Hydrogen peroxide
Hydrogen peroxide is a chemical compound with the formula.
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Hydrogenation
Hydrogenation – to treat with hydrogen – is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum.
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Hydrometallurgy
Hydrometallurgy is a method for obtaining metals from their ores.
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Inclusion compound
In host-guest chemistry, an inclusion compound is a complex in which one chemical compound (the "host") has a cavity into which "guest" compound can be accommodated.
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Inductively coupled plasma atomic emission spectroscopy
Inductively coupled plasma atomic emission spectroscopy (ICP-AES), also referred to as inductively coupled plasma optical emission spectrometry (ICP-OES), is an analytical technique used for the detection of chemical elements.
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Inductively coupled plasma mass spectrometry
Inductively coupled plasma mass spectrometry (ICP-MS) is a type of mass spectrometry which is capable of detecting metals and several non-metals at concentrations as low as one part in 1015 (part per quadrillion, ppq) on non-interfered low-background isotopes.
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Inner sphere electron transfer
Inner sphere or bonded electron transfer is a redox chemical reaction that proceeds via a covalent linkage—a strong electronic interaction—between the oxidant and the reductant reactants.
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Inorganic Chemistry (journal)
Inorganic Chemistry is a biweekly peer-reviewed scientific journal published by the American Chemical Society since 1962.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Iron–sulfur protein
Iron–sulfur proteins are proteins characterized by the presence of iron–sulfur clusters containing sulfide-linked di-, tri-, and tetrairon centers in variable oxidation states.
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Isomer
An isomer (from Greek ἰσομερής, isomerès; isos.
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IUPAC nomenclature of inorganic chemistry
In chemical nomenclature, the IUPAC nomenclature of inorganic chemistry is a systematic method of naming inorganic chemical compounds, as recommended by the International Union of Pure and Applied Chemistry (IUPAC).
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Jahn–Teller effect
The Jahn–Teller effect (JT effect or JTE) is an important mechanism of spontaneous symmetry breaking in molecular and solid-state systems which has far-reaching consequences for different fields, and it is related to a variety of applications in spectroscopy, stereochemistry and crystal chemistry, molecular and solid-state physics, and materials science.
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Lambda
Lambda, Λ, λ (uppercase Λ, lowercase λ; λάμ(β)δα lám(b)da) is the 11th letter of the Greek alphabet.
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Lanthanide
The lanthanide or lanthanoid series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium.
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Laporte rule
The Laporte rule is a spectroscopic selection rule that only applies to centrosymmetric molecules (those with an inversion centre) and atoms.
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Ligand
In coordination chemistry, a ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex.
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Ligand field theory
Ligand field theory (LFT) describes the bonding, orbital arrangement, and other characteristics of coordination complexes.
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Linear molecular geometry
In chemistry, the linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond-angle of 180°.
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Linkage isomerism
Linkage isomerism is the existence of coordination compounds that have the same composition differing with the connectivity of the metal to a ligand.
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Lone pair
In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atomIUPAC Gold Book definition: and is sometimes called a non-bonding pair.
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Magnetism
Magnetism is a class of physical phenomena that are mediated by magnetic fields.
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Materials science
The interdisciplinary field of materials science, also commonly termed materials science and engineering is the design and discovery of new materials, particularly solids.
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Mercury (element)
Mercury is a chemical element with symbol Hg and atomic number 80.
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Mercury sulfide
Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur.
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Metal
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
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Metal ammine complex
In coordination chemistry, metal ammine complexes are metal complexes containing at least one ammonia (NH3) ligand.
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Metal aquo complex
Metal aquo complexes are coordination compounds containing metal ions with only water as a ligand.
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Metalloid
A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.
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Methyl group
A methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms — CH3.
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Mineralogy
Mineralogy is a subject of geology specializing in the scientific study of chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts.
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Molecular orbital
In chemistry, a molecular orbital (MO) is a mathematical function describing the wave-like behavior of an electron in a molecule.
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Molecular orbital theory
In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole molecule.
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Molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
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Mu (letter)
Mu (uppercase Μ, lowercase μ; Ancient Greek μῦ, μι or μυ—both) or my is the 12th letter of the Greek alphabet.
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Octahedral molecular geometry
In chemistry, octahedral molecular geometry describes the shape of compounds with six atoms or groups of atoms or ligands symmetrically arranged around a central atom, defining the vertices of an octahedron.
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Optical rotation
Optical rotation or optical activity (sometimes referred to as rotary polarization) is the rotation of the plane of polarization of linearly polarized light as it travels through certain materials.
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Organometallic chemistry
Organometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkaline, alkaline earth, and transition metals, and sometimes broadened to include metalloids like boron, silicon, and tin, as well.
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Orthogonality
In mathematics, orthogonality is the generalization of the notion of perpendicularity to the linear algebra of bilinear forms.
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Outer sphere electron transfer
Outer sphere refers to an electron transfer (ET) event that occurs between chemical species that remain separate and intact before, during, and after the ET event.
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Paramagnetism
Paramagnetism is a form of magnetism whereby certain materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field.
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Pentagonal bipyramidal molecular geometry
In chemistry, a pentagonal bipyramid (or dipyramid) is a molecular geometry with one atom at the centre with seven ligands at the corners of a pentagonal dipyramid.
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Phthalocyanine
Phthalocyanine (H2Pc) is a large, aromatic, macrocyclic, organic compound with the formula (C8H4N2)4H2 and is of theoretical or specialized interest.
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Pi bond
In chemistry, pi bonds (π bonds) are covalent chemical bonds where two lobes of an orbital on one atom overlap two lobes of an orbital on another atom.
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Plasma (physics)
Plasma (Henry George Liddell, Robert Scott, A Greek English Lexicon, on Perseus) is one of the four fundamental states of matter, and was first described by chemist Irving Langmuir in the 1920s.
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Polarization (waves)
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
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Polyhedron
In geometry, a polyhedron (plural polyhedra or polyhedrons) is a solid in three dimensions with flat polygonal faces, straight edges and sharp corners or vertices.
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Polymerization
In polymer chemistry, polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks.
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Porphyrin
Porphyrins (/phɔɹfɚɪn/ ''POUR-fer-in'') are a group of heterocyclic macrocycle organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (.
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Potassium ferrioxalate
Potassium ferrioxalate, also known as potassium trisoxalatoferrate(III), is a chemical compound with the formula, where iron is in the +3 oxidation state.
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Prussian blue
Prussian blue is a dark blue pigment produced by oxidation of ferrous ferrocyanide salts.
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Qualitative inorganic analysis
Classical qualitative inorganic analysis is a method of analytical chemistry which seeks to find the elemental composition of inorganic compounds.
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Quantum mechanics
Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.
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Redox
Redox (short for reduction–oxidation reaction) (pronunciation: or) is a chemical reaction in which the oxidation states of atoms are changed.
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Solid-state chemistry
Solid-state chemistry, also sometimes referred to as materials chemistry, is the study of the synthesis, structure, and properties of solid phase materials, particularly, but not necessarily exclusively of, non-molecular solids.
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Sophus Mads Jørgensen
Sophus Mads Jørgensen (4 July 1837 – 1 April 1914) was a Danish chemist.
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Spin states (d electrons)
Spin states when describing transition metal coordination complexes refers to the potential spin configurations of the metal center's d electrons.
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Square antiprismatic molecular geometry
In chemistry, the square antiprismatic molecular geometry describes the shape of compounds where eight atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a square antiprism.
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Square planar molecular geometry
The square planar molecular geometry in chemistry describes the stereochemistry (spatial arrangement of atoms) that is adopted by certain chemical compounds.
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Square pyramidal molecular geometry
In molecular geometry, square based pyramidal geometry describes the shape of certain compounds with the formula ML5 where L is a ligand.
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Stability constants of complexes
A stability constant (formation constant, binding constant) is an equilibrium constant for the formation of a complex in solution.
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Stereoisomerism
In stereochemistry, stereoisomers are isomeric molecules that have the same molecular formula and sequence of bonded atoms (constitution), but differ in the three-dimensional orientations of their atoms in space.
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Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions.
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Structural isomer
Structural isomerism, or constitutional isomerism (per IUPAC), is a form of isomerism in which molecules with the same molecular formula have different bonding patterns and atomic organization, as opposed to stereoisomerism, in which molecular bonds are always in the same order and only spatial arrangement differs.
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Tanabe–Sugano diagram
Tanabe–Sugano diagrams are used in coordination chemistry to predict absorptions in the UV, visible and IR electromagnetic spectrum of coordination compounds.
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Tetrahedral molecular geometry
In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron.
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Three-center two-electron bond
A three-center two-electron bond is an electron-deficient chemical bond where three atoms share two electrons.
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Transition metal
In chemistry, the term transition metal (or transition element) has three possible meanings.
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Triaugmented triangular prism
In geometry, the triaugmented triangular prism or tetracaidecadeltahedron is one of the Johnson solids (J51).
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Tricapped trigonal prismatic molecular geometry
In chemistry, the tricapped trigonal prismatic molecular geometry describes the shape of compounds where nine atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a triaugmented triangular prism (a trigonal prism with an extra atom attached to each of its three rectangular faces).
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Trigonal bipyramidal molecular geometry
In chemistry a trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular dipyramid.
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Trigonal planar molecular geometry
In chemistry, trigonal planar is a molecular geometry model with one atom at the center and three atoms at the corners of an equilateral triangle, called peripheral atoms, all in one plane.
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Trigonal prismatic molecular geometry
In chemistry, the trigonal prismatic molecular geometry describes the shape of compounds where six atoms, groups of atoms, or ligands are arranged around a central atom, defining the vertices of a triangular prism.
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Trigonal pyramidal molecular geometry
In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base, resembling a tetrahedron (not to be confused with the tetrahedral geometry).
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Triplet oxygen
Triplet oxygen, 3O2, refers to the S.
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Ultraviolet–visible spectroscopy
Ultraviolet–visible spectroscopy or ultraviolet–visible spectrophotometry (UV–Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region.
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Vitamin B12
Vitamin B12, also called cobalamin, is a water-soluble vitamin that is involved in the metabolism of every cell of the human body: it is a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.
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Water of crystallization
In chemistry, water of crystallization or water of hydration or crystallization water is water molecules that are present inside crystals.
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Zeise's salt
Zeise's salt, potassium trichloro(ethene)platinate(II), is the chemical compound with the formula K·H2O.
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Ziegler–Natta catalyst
A Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins).
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18-electron rule
The 18-electron rule is a rule used primarily for predicting and rationalizing formulae for stable metal complexes, especially organometallic compounds.
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References
[1] https://en.wikipedia.org/wiki/Coordination_complex