高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (9): 1238.

• 论文 • 上一篇    下一篇

甘油快原子轰击质谱的量子化学研究

郭纯孝1, 孟庆波2, 刘淑莹2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 中国科学院长春应用化学研究所
  • 收稿日期:1990-03-10 出版日期:1991-09-24 发布日期:1991-09-24
  • 通讯作者: 郭纯孝
  • 基金资助:

    国家自然科学基金

A Quantum Chemistry Study of Fast Atom Bomb Positive Ion in Mass Spectrum of Glyccrol

Quo Chun-xiao1, Meng Qing-bo2, Liu Shu-ying2   

  1. 1. Department of Chemistry, Jilin University, Changchun, 130023;
    2. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun
  • Received:1990-03-10 Online:1991-09-24 Published:1991-09-24

摘要: 用标准MNDO方法优化了甘油快原子轰击正离子谱中的主要离子构型,计算了生成热、质子化能以及亚稳断裂的活化势垒,研究了质子化甘油二步脱水反应的机理,并指出脱水产物C3H5O+离子存在2种不同的构型。

关键词: MNDO, FAB, 质子化

Abstract: MNDO method has been applied to compute protorration energy, heat of formation, struc turc parameters and decomposition barrics of metastable ions for the prominent positive ions in the FABmass spectrum of glyccroi. The mechanism of quasi-molecuar ion of glycerol tossing two H2O mole-cales have been studied. The product ion C3H5O+is predicted to possess two different structures.

Key words: MNDO, Fast Atom Bomb(FAB), Protonation

TrendMD: