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词汇 stereoisomer
释义

Definition of stereoisomer in English:

stereoisomer

nounˌstɪərɪəʊˈʌɪsəməˌstɛrɪəʊˈʌɪsəməˌstɛrioʊˈaɪsəmər
Chemistry
  • Each of two or more compounds differing only in the spatial arrangement of their atoms.

    〔化〕立体异构体

    Example sentencesExamples
    • One of the errors in the literature talking about ‘mateine’ is the claim that it is a stereoisomer of caffeine.
    • Most importantly, stereoisomers are not spatially superimposable.
    • The glycerol used to make archaeal phospholipids is a stereoisomer of the glycerol used to build bacterial and eukaryotic membranes.
    • Enantiomers are stereoisomers whose molecules are nonsuperposable mirror-images of each other.
    • For instance, in the case of the two active stereoisomers we showed that only the stereochemistry at the amine and hydroxyl functions on the scaffold were important - the third chiral centre is not.

Derivatives

  • stereoisomeric

  • adjectiveˌstɛrɪəʊʌɪsəˈmɛrɪk
    Chemistry
    • As tartaric acid possesses two stereogenic carbon atoms, it exists in three stereoisomeric forms.
      Example sentencesExamples
      • However, significant differences in the structure of the two linked channels, which arise from a different orientation of the two stereoisomeric forms of the dioxolane ring with respect to the axis of the pore, were identified.
      • The structural and thermodynamic features of these stereoisomeric adducts are also discussed in relation to their reported low susceptibilities to nucleotide excision repair.
  • stereoisomerism

  • noun
    Chemistry
    • In this Topic, we will concentrate on stereoisomerism in organic compounds, although this phenomenon also occurs in other compounds such as transition metal complexes.
      Example sentencesExamples
      • Thereby, stereochemistry and stereoisomerism have been discussed on a common basis.
      • A second type of stereoisomerism are not mirror images of one another.
      • The second major type of isomerism is stereoisomerism.
      • Structural isomerism is not a form of stereoisomerism, and is dealt with on a separate page.

Definition of stereoisomer in US English:

stereoisomer

nounˌsterēōˈīsəmərˌstɛrioʊˈaɪsəmər
Chemistry
  • Each of two or more compounds differing only in the spatial arrangement of their atoms.

    〔化〕立体异构体

    Example sentencesExamples
    • One of the errors in the literature talking about ‘mateine’ is the claim that it is a stereoisomer of caffeine.
    • For instance, in the case of the two active stereoisomers we showed that only the stereochemistry at the amine and hydroxyl functions on the scaffold were important - the third chiral centre is not.
    • Enantiomers are stereoisomers whose molecules are nonsuperposable mirror-images of each other.
    • Most importantly, stereoisomers are not spatially superimposable.
    • The glycerol used to make archaeal phospholipids is a stereoisomer of the glycerol used to build bacterial and eukaryotic membranes.
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