- position isomer
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Chem.any of two or more isomers that differ only in the position occupied by a substituent.
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Universalium. 2010.
position isomer
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position isomer — Chem. any of two or more isomers that differ only in the position occupied by a substituent … Useful english dictionary
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
Isomer — Isomere (Einzahl das Isomer, Genitiv: des Isomers, Genitiv Plural: der Isomere; von griechisch ἴσος ísos „gleich“ und μέρος méros „Teil“) sind chemische Verbindungen, die die gleiche Summenformel besitzen, sich aber in der Verknüpfung und der… … Deutsch Wikipedia
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positional isomer — noun any isomer that differs from another isomer only in the position of a substituent, or of a double or triple bond … Wiktionary
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
Monosaccharide — Monosaccharides (from Greek monos: single, sacchar: sugar) are the most basic units of biologically important carbohydrates. They are the simplest form of sugar and are usually colorless, water soluble, crystalline solids. Some monosaccharides… … Wikipedia
Arene substitution patterns — are part of organic chemistry IUPAC nomenclature and pinpoint the position of substituents other than hydrogen in relation to each other on an aromatic hydrocarbon. Contents 1 Ortho, meta, and para substitution 2 Ipso, meso, and peri substitution … Wikipedia
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
Alkane — Not to be confused with Alkene or Alkyne. Chemical structure of methane, the simplest alkane Alkanes (also known as paraffins or saturated hydrocarbons) are chemical compounds that consist only of hydrogen and carbon atoms and are bonded… … Wikipedia
