大学化学 >> 2023, Vol. 38 >> Issue (2): 185-191.doi: 10.3866/PKU.DXHX202204032

化学实验 上一篇    下一篇

粉末X射线衍射法监测发光有机分子结构转化的综合实验教学

潘梅(), 王中豪   

  • 收稿日期:2022-04-12 录用日期:2022-06-14 发布日期:2022-07-01
  • 通讯作者: 潘梅 E-mail:panm@mail.sysu.edu.cn
  • 基金资助:
    国家自然科学基金(22171291);广东省高等教育教学改革项目;中山大学本科质量工程建设项目

Comprehensive Laboratory Teaching of Monitoring Structure Transformation of Photoluminescent Organic Molecular by Powder X-ray Diffraction

Mei Pan(), Zhonghao Wang   

  • Received:2022-04-12 Accepted:2022-06-14 Published:2022-07-01
  • Contact: Mei Pan E-mail:panm@mail.sysu.edu.cn

RichHTML

8

PDF

441

赞

摘要：

结合粉末X射线衍射技术在物相分析领域的应用设计了一个综合创新性实验。实验内容主要包括利用粉末X射线衍射技术监测激发态分子内质子转移(Excited-state intramolecular proton transfer，ESIPT)有机分子在溶剂熏蒸下的结构转化过程。本实验综合培养了学生对粉末X射线衍射仪的操作技巧以及数据处理分析能力，提高了学生利用现代科学仪器来解决实际问题的能力。

关键词: 粉末X射线衍射, 结构转化, 激发态分子内质子转移, 有机发光分子, 综合创新性实验

Abstract:

Combined with the application of powder X-ray diffraction technology in the field of phase analysis, a comprehensive and innovative experiment was designed. The experimental contents mainly include the use of powder X-ray diffraction to monitor the structural transformation of excited-state intramolecular proton transfer (ESIPT) organic molecule 5-(2-(5-fluoro-2-hydroxyphenyl)-4, 5-bis(4-fluorophenyl)-1H-imidazol-1-yl)isophthalic acid (H2hpi2cf) under fumigation of solvents. This experiment comprehensively cultivates students' operation skills and data processing and analysis ability of powder X-ray diffraction, and improves students' ability to use modern scientific instruments to solve practical problems.

Key words: Powder X-ray diffraction, Structural transformation, Excited-state intramolecular proton transfer, Photoluminescent organic molecule, Comprehensive innovative experiment