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单词 enantiomer
释义

Definition of enantiomer in English:

enantiomer

noun ɪˈnantɪə(ʊ)məɛˈnantɪə(ʊ)məəˈnæntioʊmər
Chemistry
  • Each of a pair of molecules that are mirror images of each other.

    〔化〕对映(结构)体

    Example sentencesExamples
    • Racemic mixtures contain equal amounts of the two enantiomers.
    • As with hands, chiral molecules can occur in two different forms, called enantiomers, which are mirror-images of one another.
    • Recently, though, it was discovered that life itself can generate a particular enantiomer or chiral form of a particular molecule.
    • This development has made it easier to monitor pesticide enantiomers that differ significantly in their toxicity.
    • Such isomers are called enantiomers and molecules that have enantiomers are said to be chiral or to show chirality.
    • One of the principal barriers to high yield is the creation of both enantiomers of a chiral compound, when only one is desired.

Derivatives

  • enantiomeric

  • adjective ɪnantɪə(ʊ)ˈmɛrɪkɛnantɪə(ʊ)ˈmɛrɪk
    Chemistry
    • There is no symmetry to this molecule, and it exists in the two enantiomeric forms.
      Example sentencesExamples
      • The reactions proceed at room temperature without solvent, giving enantiomeric excesses of 99.8 per cent.
      • In my view, it is dangerous to rely on enantiomeric ratios of protein amino acids because of the omnipresent problem of terrestrial contamination.
      • Barron showed theoretically that a magnetic field alone cannot produce an enantiomeric excess, and at the time called magnetic optical activity ‘false chirality’.
      • This enantiomerically enriched catalyst could then act to promote the formation of amino acids with substantial enantiomeric excesses.
  • enantiomerically

  • adverb
    Chemistry
    • Their efficiency, together with that of the now highly optimised extraction processes, mean that the plant remains unchallenged as the commercial source of enantiomerically pure morphine and codeine.
      Example sentencesExamples
      • This enantiomerically enriched catalyst could then act to promote the formation of amino acids with substantial enantiomeric excesses.
      • The flavour and fragrance industry takes advantage of chirality - by being able to produce enantiomerically pure compounds, manufacturers can not only expand their product ranges but also guarantee customers product uniformity.
      • The phosphine that was used was not enantiomerically pure, but even so the resulting product showed a 15 per cent enantiomeric excess.

Origin

1930s: from Greek enantios 'opposite' + -mer.

Definition of enantiomer in US English:

enantiomer

nounəˈnantēōmərəˈnæntioʊmər
Chemistry
  • Each of a pair of molecules that are mirror images of each other.

    〔化〕对映(结构)体

    Example sentencesExamples
    • This development has made it easier to monitor pesticide enantiomers that differ significantly in their toxicity.
    • Racemic mixtures contain equal amounts of the two enantiomers.
    • Such isomers are called enantiomers and molecules that have enantiomers are said to be chiral or to show chirality.
    • As with hands, chiral molecules can occur in two different forms, called enantiomers, which are mirror-images of one another.
    • One of the principal barriers to high yield is the creation of both enantiomers of a chiral compound, when only one is desired.
    • Recently, though, it was discovered that life itself can generate a particular enantiomer or chiral form of a particular molecule.

Origin

1930s: from Greek enantios ‘opposite’ + -mer.

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更新时间:2025/1/31 7:49:13