electron-pair bond
101Olefin metathesis — or transalkylidenation is an organic reaction that entails redistribution of alkylene fragments by the scission of carbon carbon double bonds in olefins (alkenes).[1] Its advantages include the creation of fewer sideproducts and hazardous wastes …
102Transition metal carbene complex — A transition metal carbene complex is a organometallic compound featuring a divalent organic ligand. The divalent organic ligand coordinated to the metal center is called a carbene. Carbene complexes for almost all transition metals have been… …
103Type I superconductor — Type I superconductors are superconductors that cannot be penetrated by magnetic flux lines (Meißner Ochsenfeld effect). As such, they have only a single critical temperature at which the material ceases to superconduct, becoming resistive. The… …
104borane — /bawr ayn, bohr /, n. Chem. any of the compounds, both neutral and anionic, of boron and hydrogen with formulas ranging from B2H6 to B20H16. Also called boron hydride. [ < G Boran (1916); see BORON, ANE] * * * ▪ chemical compound Introduction… …
105Cluster chemistry — In chemistry, a cluster is an ensemble of bound atoms intermediate in size between a molecule and a bulk solid. Clusters exist of diverse stoichiometries and nuclearities. For example, carbon and boron atoms form fullerene and borane clusters,… …
106semiconductor — /sem ee keuhn duk teuhr, sem uy /, n. 1. a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor: a basic component of various kinds of electronic circuit element (semiconductor …
107Coordination complex — Cisplatin, PtCl2(NH3)2 A platinum atom with four ligands In chemistry, a coordination complex or metal complex, is an atom or ion (usually metallic), bonded to a surrounding array of molecules or anions, that are in turn known as ligands or… …
108List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …
109Topic outline of chemistry — For a more comprehensive list, see the List of chemistry topics. Chemistry is the science of matter at the atomic to molecular scale, dealing primarily with collections of atoms, such as molecules, crystals, and metals. Chemistry deals with the… …
110Electrophile — In chemistry, an electrophile (literally electron lover ) is a reagent attracted to electrons that participates in a chemical reaction by accepting an electron pair in order to bond to a nucleophile. Because electrophiles accept electrons, they… …
