大学化学 >> 2023, Vol. 38 >> Issue (11): 301-308.doi: 10.3866/PKU.DXHX202303079

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借助Multiwfn实现物理化学性质描述符的可视化:以单环B5N5为例

程学礼1,*(), 赵燕云1, 李峰2,*(), 杨永娟1, 韩建梅1   

  1. 1 泰山学院化学化工学院, 山东 泰安 271000
    2 泰山学院物理与电子工程学院, 山东 泰安 271000
  • 收稿日期:2023-03-27 录用日期:2023-04-28 发布日期:2023-11-21
  • 通讯作者: 程学礼,李峰 E-mail:x_cheng@tsu.edu.cn;fenglitsu@163.com
  • 基金资助:
    泰山学院2022年度教师教育研究专项课题(JY-01-202210);2021年泰安市教育科学研究专项课题(TJK202106ZX029);泰山学院第14批教改课题(JG202119)

Visualizing the Descriptors of the Physical and Chemical Properties of Monocyclic B5N5 Using Multiwfn

Xueli Cheng1,*(), Yanyun Zhao1, Feng Li2,*(), Yongjuan Yang1, Jianmei Han1   

  1. 1 School of Chemistry and Chemical Engineering, Taishan University, Tai'an 271000, Shandong Province, China
    2 School of Physics and Electronic Engineering, Taishan University, Tai'an 271000, Shandong Province, China
  • Received:2023-03-27 Accepted:2023-04-28 Published:2023-11-21
  • Contact: Xueli Cheng, Feng Li E-mail:x_cheng@tsu.edu.cn;fenglitsu@163.com

摘要:

借助化学软件实现物理化学性质描述符的可视化能够极大地丰富课堂教学的内容,展现化学中的美。本文基于分子轨道绘制了仅由π电子贡献的定域化轨道定位函数(LOL-π)填色图、电子定域化函数(ELF)和扫描隧道显微镜(STM)图像,用表面静电势、平均局部离子化能(ALIE)、局部电子亲合能(LEA)可视化了分子表面反应位点,并用相互作用区域指示函数(IRI)和非键作用(NCI)函数分析揭示了B5N5单环的成键情况和弱相互作用,是把科研成果应用于课堂教学的典型范例。

关键词: 物理化学性质描述符可视化, M06-2X-D3, 分子轨道, 表面静电势, 亲电/亲核位点, IRI

Abstract:

Using Multiwfn, a free wavefunction analyzer, visualization of the descriptors of physical and chemical properties can greatly enrich the classroom-teaching contents, and will present the elegance of chemistry. In the current study, color-filled maps of localized-orbital locator (LOL) purely obtained through π electrons (LOL-π), electron localization function (ELF) color maps, and scanning tunnel microscope (STM) images were created based on the molecular orbitals of monocyclic B5N5. Additionally, molecular surface electrostatic potential, average local ionization energy (ALIE), and local electron affinity (LEA) were employed to visualize the reactive sites of B5N5. Interaction region indicator (IRI) and noncovalent interaction (NCI) analyses were performed and discussed to reveal the bonding and weak interactions in this material. The proposed study is a typical paragon for the usefulness of chemical software in facilitating the teaching of science in classrooms.

Key words: Visualization of the descriptors of physical and chemical properties, M06-2X-D3, Molecular orbital, Surface electrostatic potential, Electrophilic/nucleophilic reaction site, IRI