吸电子基团是当取代基取代苯环上的氢后，苯环上电子云密度降低的基团；反之，苯环上电子云密度升高的叫供电子基团。一个基团到底是吸电子基团还是供电子基团，得看它对苯环的诱导效应、共轭效应、超共轭效应的总和。
... 吸电子基团;electron-withdrawing group 接纳体;acceptor 受主;acceptor ...
基于6个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
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.
应用推荐