alternating double bonds

alternating double bonds
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English-Russian dictionary of chemistre. 2014.

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  • Double bond — A double bond in chemistry is a chemical bond between two chemical elements involving four bonding electrons instead of the usual two. The most common double bond, that between two carbon atoms, can be found in alkenes. Many types of double bonds …   Wikipedia

  • Conjugated system — Cinnamaldehyde, a type of phenolic compound with a conjugated system …   Wikipedia

  • alpha-Parinaric acid — α Parinaric acid IUPAC name (9Z,11E,13E,15Z) octadeca 9,11,13,15 tetraenoic acid …   Wikipedia

  • polyene — A chemical compound having a series of conjugated (alternating) double bonds; e.g., the carotenoids. * * * poly·ene päl ē .ēn n an organic compound containing many double bonds esp one having the double bonds in a long aliphatic hydrocarbon chain …   Medical dictionary

  • Annulyne — Annulynes or 1,2 didehydroannulenes are conjugated monocyclic hydrocarbons with alternating alkene bonds in addition to one alkyne bond Ref|Gard. They are related to annulenes who have just alternating double bonds. The smallest member of this… …   Wikipedia

  • resonance — 1. Sympathetic or forced vibration of air in the cavities above, below, in front of, or behind a source of sound; in speech, modification of the quality ( e.g., harmonics) of a tone by the passage of air through the chambers of the nose, pharynx …   Medical dictionary

  • heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… …   Universalium

  • hydrocarbon — hydrocarbonaceous, adj. /huy dreuh kahr beuhn, huy dreuh kahr /, n. any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH4, an alkene, ethylene, C2H4, an alkyne, acetylene, C2H2, or an aromatic compound,… …   Universalium

  • industrial polymers, major — Introduction       chemical compounds used in the manufacture of synthetic industrial materials.       In the commercial production of plastics, elastomers, man made fibres, adhesives, and surface coatings, a tremendous variety of polymers are… …   Universalium

  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

  • Aromaticity — is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. It can also be considered a manifestation of… …   Wikipedia


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