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词汇 nitro group
释义

Definition of nitro group in English:

nitro group

noun
Chemistry
  • A group —NO₂, attached to an organic group in a molecule.

    〔化〕硝基

    Example sentencesExamples
    • The most widely used method of preparing aromatic amines, for example, involves a nitration of the aromatic ring and subsequent conversion of the nitro group to an amino group.
    • Dyes are prepared by a nitration addition reaction to aniline, followed by reduction of the nitro group using sodium sulfide.
    • The twisted geometry of the nitro group with respect to the aromatic plane plays a key role in triggering such a photoprocess.
    • Yet, replacement of a sulfonic acid group in a non-mutagen with the nitro group in structure 4 converts it to a mutagen, which was predicted correctly by all the models.
    • Accumulation of nitrotyrosine, a stable product of the addition of a nitro group to the benzene ring of tyrosine by peroxynitrite is thus a stable marker of pathology within cells and tissue lesions.

Definition of nitro group in US English:

nitro group

noun
Chemistry
  • A group —NO₂, attached to an organic group in a molecule.

    〔化〕硝基

    Example sentencesExamples
    • Yet, replacement of a sulfonic acid group in a non-mutagen with the nitro group in structure 4 converts it to a mutagen, which was predicted correctly by all the models.
    • The most widely used method of preparing aromatic amines, for example, involves a nitration of the aromatic ring and subsequent conversion of the nitro group to an amino group.
    • The twisted geometry of the nitro group with respect to the aromatic plane plays a key role in triggering such a photoprocess.
    • Accumulation of nitrotyrosine, a stable product of the addition of a nitro group to the benzene ring of tyrosine by peroxynitrite is thus a stable marker of pathology within cells and tissue lesions.
    • Dyes are prepared by a nitration addition reaction to aniline, followed by reduction of the nitro group using sodium sulfide.
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