波谱学杂志 ›› 2007, Vol. 24 ›› Issue (1): 91-100.

• 研究简报 • 上一篇    下一篇

脂肪族醚类化合物核磁共振碳谱模拟

杨国臣1,2; 张生万1*; 仝建波1   

  1. (1.山西大学 化学化工学院,山西 太原 030006;2.雁北师范学院 化学系, 山西 大同 037009)
  • 收稿日期:2006-04-05 修回日期:2006-07-03 出版日期:2007-03-05 发布日期:2009-12-05
  • 通讯作者: 张生万

Calculation of 13C NMR Chemical Shifts in Aliphatic Ether

YANG Guo-chen1,2; ZHANG Sheng-wan1*; TONG Jian-bo1   

  1. (1.College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006 China; 2.College of Chemistry, Yanbei Normal College, Datong 037009 China)
  • Received:2006-04-05 Revised:2006-07-03 Online:2007-03-05 Published:2009-12-05
  • Contact: Zjang Sheng-wan

摘要: 利用原子电性作用矢量(atomic electronegativity interaction vector, AEIV)对脂肪族醚类化合物中碳原子局部化学微环境进行表征, 并结合γ-效应参数与其核磁共振碳谱(13C NMR)建立定量构谱相关(QSSR)模型,建模计算值和留一法(leave-one-out, LOO)交互校验(cross-validation, CV)预测值的复相关系数(R)分别为0.995 7和0.994 2. 进一步使用外部样本对所得模型稳定性能进行检验,其外部校验相关系数(Qext)为0.996 3,结果表明: AEIV、γ-效应参数与13C NMR谱化学位移显著相关.

关键词: 13C NMR, 原子电性作用矢量, γ 效应参数, 脂肪族醚, 定量结构波谱关系

Abstract: Using atomic electronegativity interaction vector (AEIV) as a parameter to describe the local chemical microenvironment of carbon atoms and the γ parameter, we built a model to calculate 13C NMR chemical shifts in aliphatic ethers. The results obtained from 139 13C NMR chemical shifts in 17 aliphatic ethers showed that the correlation coefficients R of model’s estimated value and leave-one-out (LOO) cross-validation (CV) predicted value are 0.995 7 and 0.994 2, respectively. Furthermore, the model was validated using the 13C NMR chemical shifts of 13C atoms in 5 other aliphatic ethers as testing samples, and the correlation coefficients (Qext) obtained was found to be 0.996 3. The results of this study showed that the parameter AEIV correlates well to the 13C NMR chemical shifts of aliphatic ether.

Key words: 13C NMR, atomic electronegativity interaction vector, γ parameter, aliphatic ether

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