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ring of atoms

См. также в других словарях:

  • ring compound — noun : a cyclic compound containing one or more rings in the molecule * * * Chem. a compound whose structural formula contains a closed chain or ring of atoms; a cyclic compound. Cf. cyclic (def. 3). [1930 35] * * * ring compound, a compound of… …   Useful english dictionary

  • ring compound — Chem. a compound whose structural formula contains a closed chain or ring of atoms; a cyclic compound. Cf. cyclic (def. 3). [1930 35] * * * …   Universalium

  • Ring strain — is an organic chemistry term that describes the destabilization of a cyclic molecule such as a cycloalkane due to the non favorable high energy spatial orientations of its atoms. Non cyclic molecules do not exhibit ring strain because their… …   Wikipedia

  • ring — Ⅰ. ring [1] ► NOUN 1) a small circular band, typically of precious metal, worn on a finger. 2) a circular band, object, or mark. 3) an enclosed space in which a sport, performance, or show takes place. 4) a group of people or things arranged in a …   English terms dictionary

  • ring — 1. A circular band surrounding a wide central opening; a r. shaped or circular structure surrounding an opening or level area. SYN: anulus [TA]. 2. The closed ( i.e., endless) chain of atoms in a cyclic compound; commonly used for “cyclic” or… …   Medical dictionary

  • Atoms in molecules — The atoms in molecules or atoms in molecules or quantum theory of atoms in molecules (Qtaim) approach is a quantum chemical model that characterizes the chemical bonding of a system based on the topology of the quantum charge density. In addition …   Wikipedia

  • ring — ring1 ringless, adj. ringlike, adj. /ring/, n., v., ringed, ringing. n. 1. a typically circular band of metal or other durable material, esp. one of gold or other precious metal, often set with gems, for wearing on the finger as an ornament, a… …   Universalium

  • ring — I. /rɪŋ / (say ring) noun 1. a circular band of metal or other material, especially one of gold or other precious metal, often set with gems, for wearing on the finger as an ornament, a token of betrothal or marriage, etc. 2. anything having the… …  

  • ring — 1. n. & v. n. 1 a circular band, usu. of precious metal, worn on a finger as an ornament or a token of marriage or betrothal. 2 a circular band of any material. 3 the rim of a cylindrical or circular object, or a line or band round it. 4 a mark… …   Useful english dictionary

  • ring — I [[t]rɪŋ[/t]] n. 1) jew a typically circular band of durable material, as gold, worn on the finger as an ornament, a token of betrothal or marriage, etc 2) anything having the form of such a band: a smoke ring[/ex] 3) a circular line or mark:… …   From formal English to slang

  • ring — I. noun Etymology: Middle English, from Old English hring; akin to Old High German hring ring, Old Church Slavic krǫgŭ circle Date: before 12th century 1. a circular band for holding, connecting, hanging, pulling, packing, or sealing < a key ring …   New Collegiate Dictionary

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