nucleophilicity

常見例句

• In this paper, electroaffinity and nucleophilicity of organic compound have been investigated, and their application in organic synthesis also has been discussed.
  從電性角度討論了有機(jī)物分子的親電性和親核性問題;并闡述了兩者在有機(jī)合成中的應(yīng)用.
• As steric hindrance of the aryl amine decreased and nucleophilicity increased, occurrence of the transfor-mation reaction increased and herbicidal activity of the product decreased.
  芳胺空間位阻越小,親核性越強(qiáng),副反應(yīng)越容易發(fā)生,產(chǎn)物除草活性越低。
• On the basis of equilibrated geometrical structure obtained by B3LYP/6-311G method,the nucleophilicity of-N(CH3)2 and-NH2 groups are investigated by electrostatic potential and MO calculations.
  在B3LYP/6-311G計(jì)算所得的平衡幾何構(gòu)型基礎(chǔ)上,分別根據(jù)靜電勢(shì)和分子軌道計(jì)算研究了分子中-NH2和-N(CH3)2的親核性,并與偏二甲基肼和鹵代烴反應(yīng)的實(shí)驗(yàn)結(jié)果進(jìn)行了對(duì)比分析。
• The paper deals with the electrophilicity and nucleophilicity of organic chemicals and expounds the dialecti-al relation of the two. Their application in organic synthesis is also touehed upon.
  從電性角度討論了有機(jī)物分子的親電性和親核性問題,闡述了兩者的辯證關(guān)系以及在有機(jī)合成中的應(yīng)用。
• Keywords Electroaffinity;Nucleophilicity;Electric property analysis;
  電性分析;親電性;親核性;
• Keywords structural chemistry;UDMH;molecular structure;nucleophilicity;
  結(jié)構(gòu)化學(xué);偏二甲基肼;分子結(jié)構(gòu);親核性;
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