carbenium ion
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Carbénium (ion) — Configuration d un ion carbénium tertiaire Trois orbitales sp2 … Wikipédia en Français
Carbenium ion — A carbenium ion is a carbocation of the trivalent and classical type R3C+. A carbonium ion is a carbocation of the penta or tetracoordinated nonclassical type such as an ion of the type R5C+. Carbonium ions appear as nonclassical carbocations… … Wikipedia
carbenium ion — A general term describing positively charged carbon containing compounds. Generally, carbenium ions are unstable reaction intermediates. Many acid catalyzed reactions of petroleum involve carbenium ion intermediates. These are sometimes called… … Petroleum refining glossary
Carbenium-Ion — Car|be|ni|um Ion [↑ Carben u. ↑ ium (2)]: von IUPAC zugelassene Sammelbez. für Carbokationen mit einem dreibindigen C Atom (Elektronensextett), z. B. (H3C)3C+ (tert Butylium, tert Butyl Kation), H5C+6 (Phenylium, Phenyl Kation). Erlaubt ist der… … Universal-Lexikon
Carbenium-Ion — Als Carbeniumion bezeichnet man in der Organischen Chemie ein positiv geladenes Kohlenstoffatom, das Bestandteil eines Kohlenwasserstoff Moleküls ist. Der Begriff Carbeniumion ist ein Unterbegriff des Carbokations. Ein Carbeniumion ist ein… … Deutsch Wikipedia
Carbonium ion — CH5 redirects here. For the postal district, see CH postcode area. A carbonium ion is a carbocation of the penta or tetracoordinated nonclassical type such as an ion of the type R5C+.[1] Methanium CH5+ … Wikipedia
Carbonium (ion) — Un ion carbonium est un carbocation dont l atome de carbone portant la charge électrique est tétra ou pentacoordonné, de type R5C+[1]. De tels cations organiques se forment par exemple sous l action de superacides tels que l acide… … Wikipédia en Français
hydride ion abstraction — Reaction of strong acid with C H bond, where hydrogen is removed as a negative ion, hydride, yielding a carbenium ion … Petroleum refining glossary
carbonium ion — noun a carbenium ion or any carbocation … Wiktionary
Arenium ion — An arenium ion in organic chemistry is the cyclohexadienyl cation that appears as a reactive intermediate in electrophilic aromatic substitution. [ Stable carbocations. CXVIII. General concept and structure of carbocations based on… … Wikipedia
