BMI 单体两端为不饱和的碳碳双键，双键邻旁的carbonyl group 具有拉电子(electron withdrawing)的特性，导致形成寡电子性 (electron-deficient)的双键，使得双键活性增大，易发生交联硬化 反应。
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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
Raman spectroscopy results showed that: the presence of electron withdrawing groups improved the bond energy of C-H in the benzene ring.
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。
In the present paper, a series of xanthene-2-carboxylic acids and xanthone-2-carboxylic acids with electron withdrawing groups on the 7-position had been synthesized.
本文合成了一系列7位拉电子基团取代的氧杂蒽-2-羧酸及氧杂蒽酮-2-羧酸化合物。
Electron withdrawing groups can enhance the limiting effect for this kind of complexes, but the effect of heavy atom ACTS opposite role.
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。
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