波谱学杂志 ›› 1999, Vol. 16 ›› Issue (5): 441-447.

• 研究论文 • 上一篇    下一篇

应用分子子图指数估计与预测烷烃核磁共振碳谱位移和

袁晓燕1,2, 陈刚1, 邱细敏3, 杨南林1, 谌其亭1, 李志良1   

  1. 1. 湖南大学化学化工学院, 长沙 410082;
    2. 长沙大学物理与化学系, 长沙 410003;
    3. 湖南医学专科学校药学与化学系, 长沙 410012
  • 收稿日期:1999-02-08 修回日期:1999-07-14 出版日期:1999-10-05 发布日期:2018-01-13
  • 作者简介:袁晓燕,女,1950年出生,副教授
  • 基金资助:
    国家自然科学基金、国家教委霍英东基金和机械部学术带头人才专项资助项目

ON 13C NMR SPECTROSCOPY: APPROACH TO QUANTITATIVE MOLECULAR MODELLING (QMM) FOR CHEMICAL SHIFT SUM IN (CSS) IN ALKANES BY MULTIPLE LINEAR REGRESSION (MLR) WITH SUBGRAPH INDEX VECTOR (VSG)

Yuan Xiaoyan1,2, Chen Gang1, Qiu Ximin3, Yang Nanlin1, Sheng Qiting1, Li Zhiliang1   

  1. College of Chemistry and Chemical Engineering, Institute of Chemometrics and Parmacy ICP, Hunan University, Changsha 410082
  • Received:1999-02-08 Revised:1999-07-14 Online:1999-10-05 Published:2018-01-13

摘要: 系统地研究了核磁共振碳谱(13C NMR)与化学位移规律及其定量构谱关系(QSSR).本文研究了一组多元素分子子图指数矢量(VMSG),并发现它与烷烃化学位移和(CCSA)有很好线性相关性.采用多元线性回归(MVLR)进行准确估计与预测,结果良好.

关键词: 核磁共振碳谱(13CNMR), 定量构谱关系(QSSR), 分子子图指数矢量(VMSG), 化学位移和(CCSA), 多元线性回归(MVLR), 分子图形学(MGT), 烷烃

Abstract: Systematic studies were made on graph theory in quantitative structure-activity/property relationships (QSAR/QSPR). Here Quantitative Molecular Modelling (QMM) was done on quantitative structure-spectrum relationship (QSSR) studies. The regularity of chemical shift sum (CSS) for 13C NMR in 65 alkanes was modelled and/or predicted by using a set of novel chemical graph indices, called molecular topological subgraph index vector (VMSG). The newly developed SGI descriptors with R>0.95 as an equation of multiple variables:CSS=bqgq=b *g=-35. 266+29. 219g1+37. 493g2+20. 707g3+30. 015g4+37. 547g5+88. 378g6+49. 369 g7+92. 211g8+41. 276g9+63. 070g10, n=65, R=0. 9901, SD=8. 9466, F=268. 34, U=214779. 00, Q=4322. 2188; CV:n=65, R2=0. 9587, SD=12. 9468, F=125. 31, where q=1 to 10(I, E, 2M, 3M, 4M, 3E, 4P, 4iP, 4tB, 3Dm), g ave good results.

Key words: Quantitative structure-activity/property/spectrum relationships (QSAR/QSPR/QSSR), Quantitative molecular modelling (QMM), Chemical shift sum (CSS), 13C NMR, Alkanes, Integrator molecular topological subgraph vector (VMSG,g)