electron withdrawing group 吸电子基 ; 吸电子基团
electron-withdrawing substituent 拉电子取代基
electron-withdrawing inductive effects 拉电子诱导效应
electron-withdrawing aryl Grignard reagent 吸电子型芳基格氏试剂
high electron withdrawing ability 高电子撤回的能力 ; 高吸电子能力
electron withdrawing ability 吸电子能力
electron withdrawing groups 拉电子基团
electron-withdrawing structure 抽离电子的结构
The oxidation potentials of these compounds are higher than those of TMT-TTF analogue probably due to the existence of electron-withdrawing ester linkages in the distance.
它们的氧化电位均高于对照化合物TMT-TTF，这可归因于位于分子远处的吸电子的烷氧羰基的存在。
Due to the strong electron-withdrawing property of CF3 - group the substitution of ortho-chloro shows a higher probability, implying the in-principle feasibility of the reaction.
由于此物质中CF 3具有强吸电子能力，所以其邻位的氯更易被取代，这就说明此反应理论上是能够发生的。
With increasing the electron withdrawing substituents in the phenoxy ring, the catalytic activity was increased, and the molecular weight of polyethylene decreased.
研究表明水杨醛亚胺镍配合物中苯环上取代基的电子效应和空间位阻对乙烯聚合活性和聚合物的分子量有所影响。
应用推荐