disproportionation
noun Date: circa 1929 the transformation of a substance into two or more dissimilar substances usually by simultaneous oxidation and reductiondisproportionate intransitive verb

New Collegiate Dictionary. 2001.

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  • Disproportionation — Disproportionation, also known as dismutation is used to describe a specific type of redox reaction in which a species is simultaneously reduced and oxidized so as to form two different products. For example: the UV photolysis of mercury(I)… …   Wikipedia

  • disproportionation — disproporcionavimasis statusas T sritis chemija apibrėžtis Atomų arba grupių persiskirstymas tarp dviejų vienodų molekulių, radikalų, grupių. atitikmenys: angl. dismutation; disproportionation rus. дисмутация; диспропорционирование ryšiai:… …   Chemijos terminų aiškinamasis žodynas

  • disproportionation — disproporcionavimasis statusas T sritis chemija apibrėžtis Elemento oksidacijos laipsnio padidėjimas ir sumažėjimas vienodų molekulių reakcijos metu. atitikmenys: angl. dismutation; disproportionation rus. дисмутация; диспропорционирование ryšiai …   Chemijos terminų aiškinamasis žodynas

  • disproportionation — |disprəˌpōrshə|nāshən, pȯr noun : the transformation of a substance into two or more dissimilar substances usually by a process involving simultaneous oxidation and reduction : dismutation disproportionation of hydrogen peroxide to water and… …   Useful english dictionary

  • disproportionation — /dis preuh pawr sheuh nay sheuhn, pohr /, n. Chem. the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C2H4 > C2H6+C2H2. [1925 30; DISPROPORTION + ATION] * * * …   Universalium

  • disproportionation — noun a) A form of redox reaction in which part of a reactant is oxidized and part of it is reduced simultaneously b) A reaction wherein a single reactant generates two chemical species which are different from each other and the initial reactant …   Wiktionary

  • disproportionation — noun Chemistry a reaction in which a substance is simultaneously oxidized and reduced, giving two different products …   English new terms dictionary

  • disproportionation — dis·pro·por·tion·a·tion …   English syllables

  • Enantiomer self-disproportionation — is a process in stereochemistry describing the separation of a non racemic mixture of enantiomers in an enantioenriched fraction and a more racemic fraction as a result of the formation of heterochiral or homochiral aggregates. This process is… …   Wikipedia

  • Chain disproportionation — In chemistry, chain disproportionation occurs when two radicals meet, instead of coupling, they exchange a proton. That gives two terminated chains, one saturated and the other with a terminal double bond [1]. 2R (CH2CH2)n CH2CH2• → R (CH2CH2)n… …   Wikipedia

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