Inorganic chemistry Inorganic chemistry *The Modern English adjectival suffix -ic was first seen as a suffix in English during the Middle English period. It was borrowed in words from Old French '-ique', which came from Latin '-icus', which came ultimately from Ancient Greek '-ικοσ (-ikos)'. There are some that contend that '-icus' was native to Latin and was cognate with rather than borrowed from Greek. At any rate, the suffix -icus was very wide-spread by the Classical Latin period in native words as well as in words derived from Greek. ...more on Wikipedia about "-ic"
The word alkali can mean:- ...more on Wikipedia about "Alkali"
Allotropy (Gr. allos, other, and tropos, manner), a name ...more on Wikipedia about "Allotropy"
Amorphous carbon is the name used for carbon that does not have any crystalline structure. As with all glassy materials, some short-range order can be observed, but there is no long-range pattern of atomic positions. ...more on Wikipedia about "Amorphous carbon"
Chemical decomposition or analysis is the fragmentation of a chemical compound into elements or smaller compounds. It is sometimes defined as the opposite of a synthesis. ...more on Wikipedia about "Chemical decomposition"
Crystal field theory is used to describe the electronic structure of transition metal complexes. It is successful in describing the magnetic properties, colors, hydration enthalpies and spinel structures of transition metal complexes, but it cannot provide an adequate description of bonding. Crystal field theory was developed by the physicists Hans Bethe and John Hasbrouck van Vleck. It was combined with molecular orbital theory to form ligand field theory, which delivers insight into the process of chemical bonding in transition metal complexes. ...more on Wikipedia about "Crystal field theory"
Crystallization is a solid-liquid separation technique, or the process of formation of solid crystals from a homogeneous solution. ...more on Wikipedia about "Crystallization processes"
The chemical term earths was historically applied to certain chemical substances, once thought to be elements, and this name was borrowed from one of the four classical elements of Plato. "Earths" later turned out to be chemical compounds, albeit difficult to decompose, such as rare earths and alkaline earths. ...more on Wikipedia about "Earth (chemistry)"
Electron counting in the inorganic chemistry and organometallic chemistry of transition metals, is a formalism used for characterizing a compound and for understanding its electronic structure and bonding. The valence shells of a transition metal are filled when they contain 18 electrons: 2 each in the 5 d orbitals, or 10 total; 2 each in the 3 p orbitals, or 6 total; and finally 2 in the single valence shell s orbital. The electrons contributed by the metal atom or ion are summed with the electrons contributed by each ligand (i.e. those valence electrons of each ligand participating in some way in a bonding interaction with the metal, and not otherwise occupied only in intraligand bonding or in lone pairs not interacting with the metal center). A compound or ion which satisfies this 18 electron rule is considered to be qualitatively more stable than other configurations or electronic states of the molecule. The "18 electron rule" applies mostly to organometallic complexes, compounds in which there are metal-carbon bonds, such as ferrocene, iron pentacarbonyl, chromium carbonyl and nickel carbonyl. Coordination compounds without metal-carbon bonds don't usually obey the "18 electron rule." ...more on Wikipedia about "Electron counting"
In inorganic chemistry, Fajans' Rules, formulated by Kasimir Fajans, are used to predict whether a chemical bond will be covalent or ionic, and depend on the charge on the cation and the relative sizes of the cation and anion. They can be summarized in the following table: ...more on Wikipedia about "Fajans' rules"
Fission products are the residues of fission processes. ...more on Wikipedia about "Fission product"
In chemistry, a homoleptic chemical compound is a metal compound with all ligands identical. The term uses a homo prefix to indicate that something is the same for all. ...more on Wikipedia about "Homoleptic"
The HSAB concept, also known as HSAB theory, is widely used in chemistry for explaining stability of compounds, reaction paths etc. ...more on Wikipedia about "HSAB concept"
Hydrocyanation is, most fundamentally, the process whereby H+ and –CN ions are added to a molecular substrate. Usually the substrate is an alkene and the product is a nitrile. When –CN is a ligand in a transition metal complex, its basicity makes it difficult to dislodge, so, in this respect, hydrocyanation is remarkable. Since cyanide is both a good σ–donor and π–acceptor its presence accelerates the rate of substitution of ligands trans from itself, the trans effect.1 A key step in hydrocyanation is the oxidative addition of hydrogen cyanide to low–valent metal complexes (scheme 1).1 ...more on Wikipedia about "Hydrocyanation"
Inorganic chemistry is the branch of chemistry concerned with the properties and reactions of inorganic compounds. This includes all chemical compounds except the many which are based upon chains or rings of carbon atoms, which are termed organic compounds and are studied under the separate heading of organic chemistry. The distinction between the two disciplines is not absolute and there is much overlap, most importantly in the sub-discipline of organometallic chemistry. ...more on Wikipedia about "Inorganic chemistry"
The IUPAC nomenclature of inorganic chemistry is a systematic way of naming inorganic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). Ideally, every inorganic compound should have a name from which an unambiguous formula can be determined. There is also a IUPAC nomenclature of organic chemistry. ...more on Wikipedia about "IUPAC nomenclature of inorganic chemistry"
The Jahn- Teller effect, sometimes also known as the Jahn-Teller distortion, describes the geometrical distortion of the electron cloud in a non-linear molecule under certain situations. This plays prominently in the description of chemical reactions of metals, and in particular the coloration of certain metallic dyes. ...more on Wikipedia about "Jahn-Teller effect"
Ligand field theory was developed during the thirties and fourties of the twentieth century as an expansion of the electrostatic crystal field theory, which offered a good description of the electronic structure of metal ions in coordination complexes but was not able to provide a proper explanation for their bonding. It was created by combining crystal field theory with molecular orbital theory. ...more on Wikipedia about "Ligand field theory"
Some criteria for editing this page have been debated and are displayed on the talk page. Please consult them before editing. ...more on Wikipedia about "List of publications in chemistry"
(Macrocycle) Traditionally, this involved high dilution chemistry where large amounts of solvent and low concentrations were used to prevent molecules from reacting with other molecules. Also, the reagents frequently needed to be added slowly. At low concentration, the molecule is more likely to react with itself than with another molecule. This is generally inefficient, using large quantities of solvents and giving low yields. ...more on Wikipedia about "Macrocycle"
The Max Planck Institute for Bioinorganic Chemistry is a scientific research facility located in the German town of Mulheim, between the cities of Frankfurt and Dusseldorf. It is named after physicist Max Planck. ...more on Wikipedia about "Max Planck Institute for Bioinorganic Chemistry"
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Metallic bonding is the bonding within metals. It involves the delocalized sharing of free electrons between a lattice of metal atoms. Thus, metallic bonds may be compared to molten salts. ...more on Wikipedia about "Metallic bond"
Octahedral clusters are inorganic or organometallic hexameric cluster compounds based on a octahedral geometry. One important class of octahedral clusters are octahedral chalcohalide clusters of the type M6X12L6 where M is a metal usually of group 6 or group 7, X is a ligand and more specifically an inner ligand of the chalcohalide group such as chlorine or sulfur and L is an outer ligand. The metal atoms are located on the edges of a octahedron with the interstitial position empty. Each face of the octahedron is capped with a chalcohalide and eight such atoms are at the corners of a cube. For this reason this geometry is called a face capped octahedral cluster. Examples of this type of clusters are the Re6S8Cl64- anion and the W6I142- anion, the last one by reaction of tungsten hexacarbonyl with iodine at elevated temperatures. ...more on Wikipedia about "Octahedral cluster"
Percent active chlorine is a unit of concentration used for hypochlorite-based bleaches. One gram of a 100% active chlorine bleach has the same bleaching power as one gram of chlorine. The term "active chlorine" is used because most commercial bleaches contain substantial amounts of chlorine in the form of chloride ions, which have no bleaching properties. ...more on Wikipedia about "Percent active chlorine"
The polyhedral skeletal electron pair theory or Wade's rules in chemistry are electron counting rules that apply to electron-poor cages such as boron hydrides which consist of many boron atoms linked together. ...more on Wikipedia about "Polyhedral skeletal electron pair theory"
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