大学化学 >> 2025, Vol. 40 >> Issue (3): 83-91.doi: 10.12461/PKU.DXHX202405018

所属专题: 理论与计算化学在化学及其交叉学科教学中的应用

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圆偏振发光中关键物理量的量子化学计算研究——介绍一个探究性计算化学实验

陈文恺1, 沈芸稼2, 孔祥梦3, 曾艳丽1   

  1. 1 河北师范大学化学与材料科学学院, 石家庄 050024;
    2 北京市第八中学, 北京 100032;
    3 河北师范大学汇华学院, 石家庄 050091
  • 收稿日期:2024-05-07 录用日期:2024-09-02 发布日期:2025-03-19
  • 通讯作者: 曾艳丽 E-mail:yanlizeng@hebtu.edu.cn
  • 基金资助:
    河北省研究生教育教学改革研究项目(YJG2024044);河北省高等教育教学改革与实践项目(2022GJJG139);国家级一流本科课程“结构化学”建设项目(2020年度);河北师范大学科技类博士基金项目(L2023B12)

Quantum Chemistry Calculation of Key Physical Quantity in Circularly Polarized Luminescence: Introducing an Exploratory Computational Chemistry Experiment

Wenkai Chen1, Yunjia Shen2, Xiangmeng Kong3, Yanli Zeng1   

  1. 1 College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China;
    2 Beijing No. 8 High School, Beijing 100032, China;
    3 Huihua College of Hebei Normal University, Shijiazhuang 050091, China
  • Received:2024-05-07 Accepted:2024-09-02 Published:2025-03-19
  • Contact: Yanli Zeng E-mail:yanlizeng@hebtu.edu.cn

摘要: 本文介绍了一个面向高年级本科生和研究生开设的探究性计算化学实验。本实验使用常见的量子化学软件Gaussian和GaussView,利用密度泛函和含时密度泛函理论,对具备圆偏振发光(CPL)的分子(联萘)进行结构优化和性质分析,计算得到发光不对称因子(glum)。本实验可以帮助学生熟悉CPL和glum的概念和应用,学会激发态的计算方式,并应用于科研工作当中。

关键词: 计算化学实验, 激发态计算, 圆偏振发光

Abstract: This work introduces an exploratory computational chemistry experiment for senior undergraduate and graduate students. The experiment employs commonly available quantum chemistry software, Gaussian and GaussView, and applies density functional theory (DFT) and time-dependent density functional theory (TDDFT), to perform ground- and excited-state geometry optimization, property analysis of an organic molecule (i.e., binaphthalene) with circularly polarized luminescence (CPL) phenomenon. Then, the computational protocols of trivial physical parameters (i.e., emission dissymmetry factors, glum) are introduced in this experiment. This experiment familiarizes students with the concepts and applications of CPL and glum, teaches them the protocols of excited-state calculations, and enables them to apply these skills to their research.

Key words: Computational chemistry experiment, Excited-state calculation, Circularly polarized luminescence