亲电性

环境污染物多数为亲电性（Electrophile）化学物质，如TCDD，CdCl2，多氯联苯，HgCl2，Pb（C2H3O2）2等。

Most of environmental pollutants are electrophile chemicals , such as TCDD , CdCl_2 , HgCl_2 , Pb ( C_2H_3O_2 ) _2 and so on .

亲电性化学物是环境中的主要污染物，所以越来越引起环境科学研究者的高度关注。

Electrophile chemical is the major pollutant in the environment , this is very concerned by many of environmental scientists .

从电性角度讨论了有机物分子的亲电性和亲核性问题，并阐述了两者在有机合成中的应用。

In this paper , electroaffinity and nucleophilicity of organic compound have been investigated , and their application in organic synthesis also has been discussed .

重氮乙酸乙酯的碳原子既具有亲电性又具有亲核性，而且是一个偶极离子，所以它的反应是多种多样的。

The carbon atom of ethyl diazoacetate is not only electrophilic and nucleophilic , but also is a dipolar ion , so the reaction about it is varied .

推测在两类催化体系中，氧化剂均在具有特定结构和价态的铁或铜活性位上活化，产生导致丙烯环氧化反应发生的亲电性活性氧物种。

We propose that the oxidant is activated on active iron or copper sites with peculiar structures and oxidation states , forming active oxygen species responsible for the epoxidation of propylene .

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 .