substituent group

• 1. 取代基: substituent | substitutional group | substituting group | substituted group
• 2. 取代基效应: substituent effect
• 3. 阴性取代基: negative substituent

更多释义

• 1.三苯基膦被全氟烷基取代基所取代。
  Triphenylphosphine has been modified by attachment of perfluoroalkyl substituents.
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• 2.讨论了气态摩尔标准生成焓与取代基常数间的线性关系。
  The linear relationship between the gas phase standard enthalpies of formation and the substituent constants is discussed.
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• 3.根据取代基对各类质子化学位移变化的影响。
  On basis of the effect of substituents on the variation of the chem.
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