波谱学杂志 ›› 2010, Vol. 27 ›› Issue (4): 516-523.

• 恭贺沈联芳和杜有如两位先生八十华诞专栏 • 上一篇    下一篇

自旋1/2-自旋1耦合系统的HSQC和HDQC实验的研究

毛劼臻1,3,毛希安2,姜凌1*   

  1. 1. 波谱与原子分子物理国家重点实验室,武汉磁共振中心(中国科学院 武汉物理与数学研究所),湖北  武汉  430071; 
    2. 凯斯西储大学 医学院,药理系,俄亥俄州 克里夫兰  44106,美国; 
    3. 中国科学院 研究生院,北京 100049
  • 收稿日期:2010-04-20 出版日期:2010-12-05 发布日期:2010-12-05
  • 基金资助:

    国家自然科学基金资助项目(90813017, 20921004),武汉市晨光计划资助项目(200950431221).

HSQC and HDQC Experiments for Spin 1/2-Spin 1 Coupled Spin System

 MAO Jie-Zhen1,3, MAO Xi-An2, JIANG Ling1*   

  1. 1. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics (Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences), Wuhan 430071, China; 
    2. Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA;
    3. Graduals School of the Chinese Academy Sciences, Beijing 100049, China
  • Received:2010-04-20 Online:2010-12-05 Published:2010-12-05
  • Supported by:

    国家自然科学基金资助项目(90813017, 20921004), 武汉市晨光计划资助项目(200950431221).

摘要:

对自旋1/2-自旋1耦合系统的单量子HSQC和双量子HDQC脉冲序列进行了理论和实验的探讨. 研究结果表明,文献提出的HDQC实验中实际上还发生了零量子跃迁,因此该实验应该是多量子HMQC实验. 研究结果还表明,HSQC有比HDQC更高的灵敏度.

关键词: 核磁共振(NMR), 自旋1/2-自旋1耦合系统, HSQC和HDQC, 氘代苯

Abstract:

Pulse sequences for heteronuclear single-quantum coherence (HSQC) and heteronuclear double-quantum coherence (HDQC) experiments for spin 1/2-spin 1 coupled spin systems were evaluated theoretically and experimentally. The results showed that zero-quantum transition occurs in the HDQC experiment. Therefore, this experiment in fact should be an HMQC experiment. The results also showed that HSQC experiment is more sensitive than HDQC experiment.

Key words: NMR, spin 1/2-spin 1 coupled system, HSQC, HDQC, deuterated benzene

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