波谱学杂志 ›› 1999, Vol. 16 ›› Issue (5): 429-440.

• 研究论文 • 上一篇    下一篇

无环醇原子电距矢量及核磁共振碳谱化学位移模拟

刘树深1, 夏之宁2, 余般梅3, 李志良1,2   

  1. 1. 重庆大学生物工程学院, 重庆 400044;
    2. 重庆大学环境与化学化工学院, 重庆 400044;
    3. 国防科技大学应用物理系, 长沙 410073
  • 收稿日期:1999-05-05 修回日期:1999-07-12 出版日期:1999-10-05 发布日期:2018-01-13
  • 作者简介:刘树深,男,1961年出生,硕士(在读博士),副教授
  • 基金资助:
    国家教委霍英东基金资助项目

ATOMIC ELECTRONEGATIVE DISTANCE VECTOR OF ACYCLIC ALCOHOL AND CHEMICAL SHIFT SIMULATION OF 13C NMR SPECTROSCOPY

Liu Shushen1, Xia Zhining2, Yu Banmei3, Li Zhiliang1,2   

  1. 1. College of Bioengineering, Chongqing University, Chongqing 400044;
    2. College of Environmentaland Chemical Engineering, Chongqing University, Chongqing 400044;
    3. Department of Applied Physic, Changsha Institute of Technology, Changsha 410073
  • Received:1999-05-05 Revised:1999-07-12 Online:1999-10-05 Published:2018-01-13

摘要: 提出以原子电性距离矢量(VAED)描述无环醇化合物中不同等价碳原子的化学环境,结合γ效应校正与碳原子类型,建立核磁共振碳谱(13C NMR)化学位移五参数线性模型.用于无环醇分子中4类等价碳原子化学位移的估计,复相关系数平方分别为R2=0.9753,0.9944,0.9974,0.9976;均方根误差分别为RMS=0.960,0.968,0.888,0.908ppm.经交互校验,模型稳定可靠,用于4个外部样本化学位移的定量预测,结果良好.

关键词: 原子电性距离矢量(VAED), γ效应校正, 13CNMR波谱模拟,

Abstract: A novel structural descriptor vector, called atomic electro negative distance vector (AEDV), has been developed to express the chemical environment of various chemically equivalent carbon atoms in alcohols. Combining AEDV and γ parameter, four five-parameter linear relationship of chemical shift for four types of carbon atoms are created by using multiple linear regression. Square of correlation coefficients are R2=0.9753, 0.9944, 0.9974 and 0.9976 and root of mean square errors are RMS=0.960, 0.968, 0.888 and 0.908 ppm for four types of carbons, respectively.The stability and prediction capacity for external samples of four models have been tested by cross-validation.

Key words: Atomic electronegative distance vector (AEDV), γ calibration, Simulation of 13C NMR spectroscopy, Alcohol