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.

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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.

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