波谱学杂志 ›› 1996, Vol. 13 ›› Issue (2): 145-151.

• 研究论文 • 上一篇    下一篇

甘氨酸和赖氨酸13C NMR屏蔽张量的ab initio研究

何勇, 沈联芳, 李白文   

  1. 中国科学院武汉物理研究所波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:1995-05-09 修回日期:1995-06-27 出版日期:1996-04-05 发布日期:2018-01-17
  • 基金资助:
    国家自然科学基金资助项目

Ab inition 13C NUCLEAR SHIELDING STUDY FOR SOLID GLYCINE AND LYSINE

He Yong, Shen Lianfang, Li Baiwen   

  1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, the Chinese Academy of Sciences, Wuhan 430071
  • Received:1995-05-09 Revised:1995-06-27 Online:1996-04-05 Published:2018-01-17

摘要: 采用规范不变原子轨道(GIAO)方法,对固体甘氨酸和赖氨酸分子的13C NMR屏蔽张量进行ab initio研究,找到了适合于较大的氨基酸的核屏蔽张量计算的基组,其计算值与实验值基本一致。

关键词: 甘氨酸, 赖氨酸, 屏蔽张量, 从头计算

Abstract: We use the gauge invariant atomic orbitals(GIAO) approach,to carry out the ab initio-CHF 13C nuclear shielding calaulations for solid glycine and lysine,and found a better locally dense basis set which is applicable to larger amino acids. The ab initio shielding results are in agreement with the experimental 13C shieldings.

Key words: Glycine, Lysine, Nuclear shielding, Ab initio