石油化工高等学校学报

石油化工高等学校学报 ›› 2015, Vol. 28 ›› Issue (6): 9-13.DOI: 10.3969/j.issn.1006-396X.2015.06.002

• 石油化工 • 上一篇    下一篇

烃类C—H键催化断裂活性受相邻基团的影响规律

唐 亮1李 强1秦玉才1万 海1, 2, 3,  莫周胜2,王西阳1,  张晓彤1,  宋丽娟1, 2   

  1.     
    ( 1. 辽宁石油化工大学辽宁省石油化工催化科学与技术重点实验室, 辽宁抚顺1 1 3 0 0 1;
    2. 中国石油大学( 华东) 化学工程学院, 山东青岛2 6 6 5 5 5; 3. 中国石油抚顺石化公司石油三厂, 辽宁抚顺1 1 3 0 0 1)
  • 收稿日期:2015-03-19 修回日期:2015-07-06 出版日期:2015-12-25 发布日期:2015-12-07
  • 通讯作者: 宋丽娟( 1 9 6 2 - ) , 女, 博士, 教授, 博士生导师, 从事工业催化与吸附化学研究; E - m a i l : l s o n g 5 6@2 6 3. n e t 。
  • 作者简介:唐亮( 1 9 8 9 - ) , 男, 硕士研究生, 从事分子模拟方向研究; E - m a i l : 9 8 0 1 0 1 7 4 1@q q. c o m。
  • 基金资助:
    国家自然科学基金资助项目( 2 1 3 7 6 1 1 4) ; 中国石油天然气股份有限公司辽河油田分公司资助项目( LHYT - S G CY C -
    2 0 1 3 - J S - 8 3 4 2) 。

The Influence Rule of the Catalytic Cleavage Activity of C—H  Bond in Hydrocarbons Affected by Adjacent Groups

  1. (1.Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Province, Liaoning Shihua University,  Fushun Liaoning 113001, China; 2.College of Chemistry and Chemical Engineering,  China University of Petroleum (East China), Qingdao Shandong 266555, China;  3.No.3 Refinery of PetroChina Fushun Petrochemical Company, Fushun Liaoning 113001, China)
  • Received:2015-03-19 Revised:2015-07-06 Published:2015-12-25 Online:2015-12-07

摘要: 采用密度泛函理论研究了烃类C—H键在醋酸铜催化作用下断裂活性受其相邻基团的影响规律。计 算结果表明, 与不同基团相连的甲基和次甲基C—H键的催化断裂活性顺序: 苯基>正己基>环己基; 而亚甲基C— H键的催化断裂活性顺序: 苯基>环己基>正己基。通过对C—H键催化断裂活性的理论分析, 发现相邻基团对所 连C—H键催化断裂活性的影响与相邻基团在催化剂发生吸附前后的电荷变化量以及空间位阻大小有关。

关键词:  C—H键, 断裂活性, 密度泛函理论,  , 电荷, 空间位阻

Abstract: The density functional theory has been employed to study the influence rule of the catalytic cleavage activity of C—H bond in hydrocarbons affected by adjacent groups under the copper acetate catalyst. The computed results suggested that the order of catalytic cleavage activity of C—H bond of methyl and methyne linking with different adjacent groups was: phenyl>nhexyl > cyclohexyl, while the order of catalytic cleavage activity of C—H bond of methylene was: phenyl>cyclohexyl>nhexyl. It was found that the effect of adjacent groups on catalytic cleavage activity of C—H bondwas related with charge value and space steric hindrance of adjacent groups before and after the adsorption on catalyst.

Key words: C—H bond,    ,  Cleavage activity,    ,  Density functional theory,    ,  Charge value,    , Space steric hindrance

引用本文

唐 亮, 李 强, 秦玉才, 万 海. 烃类C—H键催化断裂活性受相邻基团的影响规律[J]. 石油化工高等学校学报, 2015, 28(6): 9-13.

Tang Liang,Li Qiang,Qin Yucai,et al. The Influence Rule of the Catalytic Cleavage Activity of C—H  Bond in Hydrocarbons Affected by Adjacent Groups [J]. Journal of Petrochemical Universities, 2015, 28(6): 9-13.

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