高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (4): 687.doi:

• 研究论文 • 上一篇    下一篇

人工合成化合物S-A的核磁共振研究

王俊美1, 欧阳捷1, 许美凤1, 邓志威1, 马丰年2, 张聪2   

    1. 北京师范大学分析测试中心,
    2. 化学学院, 北京 100875
  • 收稿日期:2008-08-18 出版日期:2009-04-10 发布日期:2009-04-10
  • 通讯作者: 邓志威, E-mail:dengzw@bnu.edu.cn

NMR Investigation of Synthetical Compound S-A

WANG Jun-Mei1, OUYANG Jie1, XU Mei-Feng1, DENG Zhi-Wei1*, MA Feng-Nian2, ZHANG Cong2   

    1. Analytical & Testing Center,
    2. Department of Chemistry, Beijing Normal University, Beijing 100875, China
  • Received:2008-08-18 Online:2009-04-10 Published:2009-04-10
  • Contact: DENG Zhi-Wei, E-mail:dengzw@bnu.edu.cn

摘要:

利用核磁共振技术对人工合成化合物S-A的溶液行为进行了研究, 确定该化合物在氯仿溶剂中存在分子内氢键过程, 而该交换过程对核磁共振结果的影响异常明显. 针对以上现象, 通过外加试剂和改变温度的手段对样品体系或测试环境进行了调制, 提高了核磁共振谱图的信号质量和“可读性”.

关键词: 核磁共振, 化学交换, 结构确证

Abstract:

In this work, the behavior of synthetical compound S-A dissolved in CDCl3 was investigated with NMR techniques. It was confirmed that there was a hydrogen-bounding process in this solution, and which would affect the performance of NMR experiments and spectra results, obviously. Considering this phenomena, the sample system or testing condition was adjusted with either introducing an extra agent, or changing the testing temperature. As the result, the NMR spectra with fair quality were obtained, and finally NMR structu-ral confirmation was achieved for this compound.

Key words: NMR, Chemical exchange, Structure elucidation

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