有机化学 ›› 2004, Vol. 24 ›› Issue (2): 173-183. 上一篇    下一篇

研究论文

不饱和链烃沸点的拓扑研究

沐来龙*, 冯长君   

  1. 徐州师范大学化学系 徐州 221006
  • 收稿日期:2003-06-23 修回日期:2003-07-31 接受日期:2003-08-15 发布日期:2022-09-20
  • 基金资助:
    江苏省高校自然科学基金(No. 02KJB150008)资助项目

Topological Study on the Boiling Points of Unsaturated Chain Hydrocarbons

MU, Lai-Long*, FENG, Chang-Jun   

  1. Depertment of Chemistry, Xuzhou Normal University, Xuzhou 221009
  • Received:2003-06-23 Revised:2003-07-31 Accepted:2003-08-15 Published:2022-09-20
  • Contact: * E-mail: mull@xznu.edu.cn

基于邻接矩阵与边价(fi)定义边价连接性指数(mF),其中的0F, 1F与294种不饱和链烃(包括烯烃、炔烃及烯炔烃)的沸点(Tb)关联,得到良好的数学模型:ln(700-Tb)=6.52331-0.00488 0F2-0.34677 1F0.5 (n=294, R=0.9979, R2=0.9958, F=34904, S=5.12),该回归模型经Jackknife法检验具有总体稳健性.可以预示,该指数将在定量构效关系研究中成为重要参数.

关键词: 边价连接性指数, 不饱和链烃, 沸点, 定量构效关系

On the basis of adjacent matrix and edge valence (fi), a novel connectivity index (mF) was developed. Among mF, 0F and 1F showed good structural selectivity for unsaturated chain hydrocarbons. Correlation cofficients between 0F, 1F and the boilingpoints (Tb) of294 unsaturated chain hydrocarbons (with the number of carbon atoms ranging from 2 to 20) were examined and the following regression formula was obtained: ln(700-Tb)=6.52331-0.00488 0F2-0.34677 1F0.5 (n=294,R=0.9979, R2=0.9958, F=34904, S=5.12), which could providesatisfactory estimates and prediction for the boiling points of unsaturatedchain hydrocarbons. Furthermore, the model was examined to validate the modelrobustness with Jackknifed method. All these results showed that the connectivity index (mF) of edge valenc was a important parameter in QSPR studies.

Key words: connectivity index of edge valence, unsaturated chain hydrocarbon, boiling point, quantitative structure-property relationship