position isomerism

position isomerism
a type of constitutional isomerism in which the position occupied by an atom or group differs with reference to the same fundamental carbon chain; for example, n-propyl chloride, CH3CH2CH2Cl, and isopropyl chloride, CH3CHClCH3.

Medical dictionary. 2011.

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  • position isomerism — noun : isomerism in which a substituting atom or group occupies different positions …   Useful english dictionary

  • isomerism — /uy som euh riz euhm/, n. 1. Chem. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism), as CH3OCH3 and… …   Universalium

  • structural isomerism — noun : isomerism in which atoms are linked in a different order sometimes distinguished from stereoisomerism; compare position isomerism * * * Chem. See under isomerism (def. 1). [1925 30] * * * structural isomerism noun (chem) The prope …   Useful english dictionary

  • place isomerism — noun : position isomerism …   Useful english dictionary

  • substitution isomerism — position i …   Medical dictionary

  • Conformational isomerism — Conformers of butane, shown in Newman projection. The two gauche as well as the anti form are staggered conformations In chemistry, conformational isomerism is a form of stereoisomerism in which the isomers can be interconverted exclusively by… …   Wikipedia

  • Ligand isomerism — is a type of structural isomerism which arises from the presence of ligands which can adopt different isomeric forms. An example is provided by diaminopropane,which may have amine groups in terminal(1,3)positions or in the 1,2 positions. The… …   Wikipedia

  • Isomer — This article is about the chemical concept. For isomerism of atomic nuclei, see nuclear isomer. In chemistry, isomers (from Greek ἰσομερής, isomerès; isos = equal , méros = part ) are compounds with the same molecular formula but different… …   Wikipedia

  • Structural isomer — Structural isomerism, or constitutional isomerism (per IUPAC), is a form of isomerism in which molecules with the same molecular formula have bonded together in different orders, as opposed to stereoisomerism.[1] There are multiple synonyms for… …   Wikipedia

  • carbonation — Synonyms and related words: acetification, acidification, acidulation, alkalization, boiling, bubbliness, bubbling, catalysis, chemicalization, ebullience, ebulliency, ebullition, effervescence, effervescency, electrolysis, ferment, fermentation …   Moby Thesaurus

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