单词查询
substituents
释义
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n. 代替者；【化】取代基；
例句
It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors.
由此可以看出，取代基的主本阻碍反应，是反映在违背动力学因素而不是热力学因素。
Their chemical and physical properties can be tailored by judicious selection of cation, anion, and substituents.
通过选择合适的阳离子、阴离子和配体，可以调变离子液体的化学、物理性能。
The method can synthesize paraquat derivatives containing different alkyl substituents by changing the type of ethanol.
该方法由于可以通过改变醇的种类，合成出含不同烷基取代基的百草枯衍生物。
The compounds with bulky substituents on N-atom preferably exist in keto form on the same condition of determination.
当氮原子上带有体积较大的取代基时，在相同的条件下，化合物更容易以双酮式构型存在。
Enols can be stable or even isolable by beating special substituents or in proper environments.
烯醇受环境因素和取代基的影响在一定条件下可以稳定存在。
However, the steric effects related to the substituents of PS and EVA cancels this catalytic behaviour.
然而，有关的PS和EVA取代基的空间位阻效应取消此催化行为。
The invention relates to compounds of formula (I) wherein the substituents are described in claim 1.
本发明涉及通式（I）的化合物，其中取代基如权利要求1中所述。
Flett has examined a series of anthraquinones with various substituents on the ring.
福莱特测试了一系列环上具有不同取代基的蒽醌。
All other substituents are as defined herein.
The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 27 References are presented.
总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。参考文献27篇。
由此可以看出，取代基的主本阻碍反应，是反映在违背动力学因素而不是热力学因素。
Their chemical and physical properties can be tailored by judicious selection of cation, anion, and substituents.
通过选择合适的阳离子、阴离子和配体，可以调变离子液体的化学、物理性能。
The method can synthesize paraquat derivatives containing different alkyl substituents by changing the type of ethanol.
该方法由于可以通过改变醇的种类，合成出含不同烷基取代基的百草枯衍生物。
The compounds with bulky substituents on N-atom preferably exist in keto form on the same condition of determination.
当氮原子上带有体积较大的取代基时，在相同的条件下，化合物更容易以双酮式构型存在。
Enols can be stable or even isolable by beating special substituents or in proper environments.
烯醇受环境因素和取代基的影响在一定条件下可以稳定存在。
However, the steric effects related to the substituents of PS and EVA cancels this catalytic behaviour.
然而，有关的PS和EVA取代基的空间位阻效应取消此催化行为。
The invention relates to compounds of formula (I) wherein the substituents are described in claim 1.
本发明涉及通式（I）的化合物，其中取代基如权利要求1中所述。
Flett has examined a series of anthraquinones with various substituents on the ring.
福莱特测试了一系列环上具有不同取代基的蒽醌。
All other substituents are as defined herein.
The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 27 References are presented.
总结了四唑啉酮化合物的合成、取代基对母体除草活性的影响。参考文献27篇。