波谱学杂志 ›› 1999, Vol. 16 ›› Issue (3): 243-254.

• 研究论文 • 上一篇    下一篇

核磁共振碳谱研究:烷烃化学位移和(CSS)与分子路径指数矢量(VPM)

夏之宁1, 余般梅2, 袁晓燕3,4, 莫立宇2, 何萍1, 邓益群3,4, 李志良1,3   

  1. 1. 重庆大学化学化工学院, 重庆 400044;
    2. 国防科学技术大学应用物理系长沙 410073;
    3. 湖南大学化学化工学院, 长沙 410082;
    4. 长沙大学化学系, 长沙 410003;
    5. 湖南环境保护学校基础科学部, 长沙 410004
  • 收稿日期:1998-10-12 修回日期:1999-02-05 出版日期:1999-06-05 发布日期:2018-01-11
  • 作者简介:夏之宁,男,1961年出生,博士(后),副教授
  • 基金资助:
    国家自然科学基金资助项目(29775035);国家教育部霍英东基金;优秀年轻教师基金资助项目

ON 13C NMR SPECTROSCOPY:Approach to Chemical Shift Sum (CSS) in Alkanes by Stepwise Multiple Linear Regression (SMR) with Molecular Path Index Vector (VPM)

Xia Zhining1, Yu Banmei2, Yuan Xiaoyan3,4, Mo Liyu2, He Ping1, Deng Yiqiong3,4, Li Zhiliang1,3   

  1. 1. College of Chemistry and Chemical Engineering, Institute of Molecular Pharmacy/IMP, Chongqing University, Chongqing 400044;
    2. Department of Applied Physics, Changsha Institute of Technology, Changsha 410073;
    3. College of Chemistry and Chemical Engineering, Institute of Chemometrics and Pharmacy/ICP, Hunan University, Changsha 410082
  • Received:1998-10-12 Revised:1999-02-05 Online:1999-06-05 Published:2018-01-11

摘要: 系统研究了核磁共振碳谱和化学位移规律及其定量构谱关系(QSSR).本文研究了一组十元素分子路径指数矢量VPM,并发现它与烷烃化学位移和CCS有良好线性相关性.采用多元线性回归进行准确估计与预测,结果优良.

关键词: 核磁共振波谱, 化学位移和(CSS), 分子路径指数矢量(VPM), 烷烃, 定量构谱关系(QSSR), 多元线性回归

Abstract: Systematic studies were made on graph theory in quantitative structure-activity/property relationships (QSAR/QSPR). Here, molecular modelling was done on quantitative structure-spectra relationship (QSSR) studies. Chemical shift sums (CSS) for 13C NMR in alkanes were well correlated with a set of molecular graph indices, called path of length one through ten, as a simple set of multiple linear regression equations:
CSS=b* P or CCS=bi*(I=b0+b1p1+b2p2+b3p3+b4p4+…+bnpn
=b0+b1p1+b2p2+…+bqpq=bipi=b *p
where i=1 to I, q=1 to 9, with good results (r=0.9965).

Key words: Molecular modelling, Chemical topology, Graph Theory, QSAR/QSPR/QSSR, 13C NMR Chemical Shift Sum/CSS, Alkanes, Integrator path index vector/(VPM,P)