吸电子基团使还原电位正移，推电子基团使还原电位负移。
Usually, the reduction potential is shifted to more positive by electron-attracting groups and to more negative by electron-repulsing groups.
在伯烷基上吸电子基团能增强硫原子与铁原子之间的化学吸附作用力。
The electron withdrawing group (F) being introduced into the alkyl groups of then-hexyl ZDDP is able to strengthen chemical adsorption between ZDDP and Fe atoms.
拉曼光谱分析结果证明：吸电子基团的存在使苯环上c -H的键能提高。
Raman spectroscopy results showed that: the presence of electron withdrawing groups improved the bond energy of C-H in the benzene ring.
探讨碱性、溶剂极性、离去基团、吸电子基团、亲核试剂的亲核性对反应影响。
There are impact factor to be discussed such as solvent polarity, nucleofuge, attract electron group the nunucleophilicity of nucleophilic reagent.
吸电子基团能增强该类配合物对皮秒激光的限幅效果，而重原子效应则起相反的作用。
Electron withdrawing groups can enhance the limiting effect for this kind of complexes, but the effect of heavy atom ACTS opposite role.
另外，还发现推电子基团取代的卟啉弛豫过程比吸电子基团取代的卟啉弛豫过程快7倍。
Moreover, We found that the relaxation time of H2TPP with donating electron group is about 7 times faster than that with withdrawing electron group.
含有吸电子基团的二硝基苯类化合物反应活性明显高于含有供电子基的二硝基化合物的加氢反应；
The dinitrobenzene with electron-withdrawing group can be hydrogenated much easier than the dinitrobenzene with electron-donating group.
结果表明，偶氮苯衍生物分子具有很好的共轭性，在给吸电子基团作用下，电荷转移明显，展现示出较强的极性。
The results indicated that (1) azobenzene derivatives possess good conjugation. When linked with electron-donor and electron-acceptor, the charge transfer is obvious, thus shows strong polarity.
研究发现，无论对于吸电子取代基还是供电子的取代基对烯基亚砜的活性都没有任何影响，而邻甲基苯醌前体化合物中所带有的吸电子基团能增加其反应活性。
It was found that both the electro-withdraw and electro-donating substituents have no effect on reaction activity and the electro-withdraw substituents can increase the reaction activity.
并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。
At the same time, discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.
并且对亲核试剂的体积效应、溶剂效应对亲核性影响，底物上吸电子基团的数目、吸电子能力对亲电性的影响，以及亲核取代反应的发生部位受哪些因素影响进行探讨。
At the same time, discuss about the impact factor to nucleophilicity such as the number of attract electron group, ability of attract electron and the nucleophilic substitution reaction part.
应用推荐