- ring strain
- напряжение кольца
English-Russian dictionary of chemistre. 2014.
ring strain
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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 opening metathesis polymerisation — Ring opening metathesis polymerization (ROMP) is a type of olefin metathesis polymerization that produces industrially important products. The driving force of the reaction is relief of ring strain in cyclic olefins (e.g. norbornene or… … Wikipedia
Strain — can refer to: * Strain (biology), a variant of a plant, virus or bacterium; or an inbred animal used for experimental purposes * Strain (chemistry), a chemical stress of a molecule * Strain (continuum mechanics), the deformation of materials… … Wikipedia
Strain energy — In a molecule, strain energy is released when the constituent atoms are allowed to rearrange themselves in a chemical reaction or a change of chemical conformation in a way that:* angle strain, * torsional strain, * ring strain and/or steric… … Wikipedia
strain theory — ▪ chemistry in chemistry, a proposal made in 1885 by the German chemist Adolf von Baeyer (Baeyer, Adolf von) that the stability of carbocyclic compounds (i.e., those of which the molecular structure includes one or more rings of carbon… … Universalium
Carbon ring — Carbon rings are rings of carbon atoms. Rings of five and six carbons are by far the most common, as they allow bond angles close to the ideal angle of 109.5 degrees. Rings of three and four are possible, but with bond angles of 60 and 90 degrees … Wikipedia
Baeyer strain theory — or strain theory explains specific behaviour of chemical compounds in terms of bond angle strain. It was proposed by Adolf von Baeyer in 1885 to account for the unusual chemical reactivity in ring opening reactions of cyclopropanes and… … Wikipedia
Angle strain — The presence of angle strain in a molecule indicates that in a specific chemical conformation there exist bond angles that deviate from the ideal bond angles required to achieve maximum bond strength. Maximum bond strength results from effective… … Wikipedia
Prelog strain — In organic chemistry, transannular strain or Prelog strain (named after Vladimir Prelog) is the unfavorable interaction of transannular protons in 7 12 membered cyclic molecules resulting in increased ring strain. External links # Prelog strain… … Wikipedia
Repetitive strain injury — Classification and external resources DiseasesDB 11373 eMedicine pmr/97 … Wikipedia
Der Ring des Nibelungen — (The Ring of the Nibelung) is a cycle of four epic operas (or dramas to use the composer s preferred term) by the German composer Richard Wagner (1813–83). The works are based loosely on characters from the Norse sagas and the Nibelungenlied. The … Wikipedia
