波谱学杂志 ›› 2008, Vol. 25 ›› Issue (2): 211-216.

• 研究论文 • 上一篇    下一篇

几种磺酰脲类除草剂的1H NMR谱的理论研究

刘兴艳; 廖显威; 陈国力; 张红梅; 范志金   

  1. 四川师范大学 化学与材料科学学院,成都 610066
  • 收稿日期:2007-03-09 修回日期:2007-04-07 出版日期:2008-06-05 发布日期:2009-12-05
  • 通讯作者: 廖显威

Theoretical Calculation of 1H NMR Spectra of Sulfonylurea Herbicides

LIU Xing-yan; LIAO Xian-wei; CHEN Guo-li; ZHANG Hong-mei; FAN Zhi-jin   

  1. College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610066
  • Received:2007-03-09 Revised:2007-04-07 Online:2008-06-05 Published:2009-12-05
  • Contact: Liao Xian-wei

摘要: 在HF/6-31G(d)水平上对8种N-(4′-甲基嘧啶)-N-取代基-2-硝基苯磺酰脲化合物I1-8进行全参数优化和振动分析,并在HF/6-31G(d)水平上所得的优化构型的基础上,用GIAO方法在B3LYP/6-31G(d)水平上计算了它们的核磁共振氢谱,计算结果与实验值较为吻合.

关键词: 核磁共振氢谱, 磺酰脲类, 量子化学计算, B3LYP/6-31G(d)

Abstract: In this paper, the geometric configurations of eight derivatives of N(4′-mehylpyrimidine)-N-substitute-2-nitro-benzenesulfonylurea were optimized by theoretical calculations. The structures of these compounds were optimized by the HF method at the level of 6-31G(d) and their 1H NMR spectra were predicted by the B3LYP method at the level of 6-31G(d). It was shown that the results of theoretical calculation were consistent with the experimental results.

Key words: 1H NMR, sulfonylurea, quantum chemical calculation, B3LYP/6-31G(d)