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radical species

См. также в других словарях:

  • Radical polymerization — is a type of polymerization in which the reactive center of a polymer chain consists of a radical.The polymerization reaction is initiated by three classes of free radical initiators: * certain compounds that can be broken down in two radicals at …   Wikipedia

  • Radical-nucleophilic aromatic substitution — or SRN1 in organic chemistry is a type of substitution reaction in which a certain substituent on an aromatic compound is replaced by a nucleophile through an intermediary free radical species:The substituent X is a halide and nucleophiles can be …   Wikipedia

  • Radical ion — A radical ion is a free radical species that carries a charge.[1] Radical ions are encountered in organic chemistry as reactive intermediates and in mass spectrometry as gas phase ions. Positive radical ions are called radical cations whereas… …   Wikipedia

  • Radical substitution — In organic chemistry, a radical substitution reaction is a substitution reaction involving free radicals as a reactive intermediate. The reaction always involves at least two steps, and possibly a third. In the first step called initiation a free …   Wikipedia

  • Radical initiator — In chemistry, radical initiators are substances that can produce radical species under mild conditions and promote radical polymerization reactions. These substances generally possess weak bonds mdash;bonds that have small bond dissociation… …   Wikipedia

  • Radical — (from Latin radicis , genitive of radix root ) can refer to many different things and concepts.Mathematics*The symbol √ used to indicate the square root or nth root *Radical of an algebraic group, a concept in algebraic group theory *Radical of… …   Wikipedia

  • Radical behaviorism — is a philosophy developed by B. F. Skinner that underlies the experimental analysis of behavior approach to psychology. The term radical behaviorism applies to a particular school that emerged during the reign of behaviorism. However, radical… …   Wikipedia

  • Radical (Chimie) — Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un électron célibataire… …   Wikipédia en Français

  • Radical Libre — Radical (chimie) Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un… …   Wikipédia en Français

  • Radical libre — Radical (chimie) Pour les articles homonymes, voir Radical. Un radical (souvent appelé radical libre) est une entité chimique possédant un ou plusieurs électrons non appariés sur sa couche externe. Il se note par un point. La présence d un… …   Wikipédia en Français

  • Radical (chemistry) — Free radical redirects here. For other uses, see Free radical (disambiguation). Moses Gomberg (1866 1947), the founder of radical chemistry Radicals (often referred to as free radicals) are atoms, molecules, or ions with unpaired electrons on an… …   Wikipedia

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