crown ether

crown ether
krauneteris statusas T sritis chemija apibrėžtis Ciklinis eteris, turintis ne mažiau kaip keturis angliavandeniliniais tilteliais sujungtus deguonies atomus. atitikmenys: angl. crown ether rus. краун-эфир

Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. . 2003.

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  • Crown ether — 18 crown 6 coordinating a potassium ion Crown ethers are cyclic chemical compounds that consist of a ring containing several ether groups. The most common crown ethers are oligomers of ethylene oxide, the repeating unit being ethyleneoxy, i.e.,… …   Wikipedia

  • crown ether — noun a) any of a class of macrocyclic compounds containing repeat units of CHCHO b) any similar compound containing atoms of nitrogen, sulphur, phosphorus or silicon instead of, or as well as, oxygen …   Wiktionary

  • crown ether — …   Useful english dictionary

  • Ether couronne — Éther couronne 18 couronne 6 coordonnant un ion potassium (au centre, en violet). Les atomes d oxygène sont en rouge, les atomes de carbone en noir et les atomes d hydrogène en blanc. Les éthers couronnes sont des composés chimiques… …   Wikipédia en Français

  • Éther-couronne — 18 couronne 6 coordonnant un ion potassium (au centre, en violet). Les atomes d oxygène sont en rouge, les atomes de carbone en noir et les atomes d hydrogène en blanc. Les éthers couronnes sont des composés chimiques hétérocycliques qui, dans… …   Wikipédia en Français

  • Crown — or The Crown may refer to: Crown (anatomy), a part of the head or of a hat Headgear Coronet, a small crown consisting of ornaments fixed on a metal ring. Unlike a crown, a coronet never has arches.[citation needed] Crown (headgear), ceremonial… …   Wikipedia

  • ether — etheric /i ther ik, i thear /, adj. /ee theuhr/, n. 1. Also called diethyl ether, diethyl oxide, ethyl ether, ethyl oxide, sulfuric ether. Chem., Pharm. a colorless, highly volatile, flammable liquid, C4H10O, having an aromatic odor and sweet,… …   Universalium

  • Éther couronne — 18 couronne 6 coordonnant un ion potassium (au centre, en violet). Les atomes d oxygène sont en rouge, les atomes de carbone en noir et les atomes d hydrogène en blanc. Les éthers couronnes sont des composés chimiques hétérocycliques qui, dans… …   Wikipédia en Français

  • Ether — This article is about a general class of organic compounds. For the specific compound, see diethyl ether. For the computer network technology, see ethernet. For the antiquated physics concept, see Luminiferous aether. For other uses, see Aether… …   Wikipedia

  • 18-Crown-6 — Chembox new Name = 18 Crown 6 ImageFile = 18 crown 6.svg ImageName = 18 Crown 6 IUPACName = 1,4,7,10,13,16 hexaoxacyclooctadecane Section1 = Chembox Identifiers CASOther = {CAS|17455 13 9} SMILES = C1OCCOCCOCCOCCOCCOC1 Section2 = Chembox… …   Wikipedia

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