Jove
Visualize
联系我们

相关概念视频

VSEPR Theory and the Basic Shapes02:52

VSEPR Theory and the Basic Shapes

82.5K
Overview of VSEPR Theory
82.5K
Radicals: Electronic Structure and Geometry01:07

Radicals: Electronic Structure and Geometry

4.9K
This lesson delves into the geometry of a radical, which is influenced by the electronic structure of the molecule. The principle is similar to that of a lone pair, where the unpaired electron influences the geometry at the radical center.
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
4.9K
VSEPR Theory02:37

VSEPR Theory

13.7K
Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure around a central atom from an examination of the number of bonds and lone electron pairs in its Lewis structure. The VSEPR model assumes that electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between these electron pairs by maximizing the distance between them. The electrons in the valence shell of a central atom form either bonding...
13.7K
Molecular Shapes01:18

Molecular Shapes

61.1K
Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
61.1K
VSEPR Theory and the Effect of Lone Pairs04:01

VSEPR Theory and the Effect of Lone Pairs

52.0K
Effect of Lone Pairs of Electrons on Molecule Geometry
52.0K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

44.4K
VSEPR Theory for Determination of Electron Pair Geometries
44.4K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Double Ionization of Polycyclic Aromatic Nitrogen Heterocycles: Simulations on Phenanthridine.

ACS earth & space chemistry·2026
Same author

Electron-impact ionization of CClF<sub>3</sub> and CHClF<sub>2</sub>: absolute cross sections and fragmentation dynamics.

Physical chemistry chemical physics : PCCP·2026
Same author

Condensed and gaseous benzonitrile: ionic species formation and structural parameters.

Physical chemistry chemical physics : PCCP·2025
Same author

The Adamantaneland Revisited.

The journal of physical chemistry. A·2025
Same author

Electron impact single and double ionization and dissociation: revisiting CF<sub>4</sub> and CHF<sub>3</sub> with an improved experimental method.

Physical chemistry chemical physics : PCCP·2025
Same author

Signatures in Vibrational and Vibronic Spectra of Benzene Molecular Clusters.

The journal of physical chemistry. A·2025
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关实验视频

Updated: Jan 8, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
06:35

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

8.4K

具有五角形-金字塔结构的新分子几何学.

Ricardo R Oliveira1, Wania Wolff2, Amir L Perlin1

  • 1Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil.

ACS omega
|December 22, 2025
PubMed
概括

研究人员设计的分子离子模仿了二.

科学领域:

  • 计算化学是一种计算化学.
  • 理论化学是一种理论化学.
  • 量子化学是一种量子化学.

背景情况:

  • 二 (C6H6^2+) 呈现出独特的五角形-金字塔形几何形状.
  • 在分子科学中,了解二子物种的电子结构和稳定性至关重要.

研究的目的:

  • 设计具有与二甲酸相似的五角形-金字塔结构的新型分子离子.
  • 为了研究这些新型二维物种的稳定性和几何偏好.

主要方法:

  • 全球最低 (GM) 搜索被用来识别稳定的结构.
  • 密度函数理论 (DFT) 计算被用来分析电子属性和几何.

主要成果:

  • 几种新的二元化物种,包括C5H6Si^2+,C5H5N^2+,C5H5P^2+,C5H6B^+,和C5H6Al^+,是通过计算设计的.
  • 所有设计的离子,除了金二,采用五角形-金字塔形几何.
  • 发现八个价值电子稳定了这些结构,类似于二.

结论:

  • 这项研究表明,八个价值电子可以稳定五角形-金字塔结构在具有五度或六度协调主群元素的二元化物种中.
  • 二甲酸被强调为实验实现和检测的有前途的候选者,与之前的二甲酸研究相似.

更多相关视频

Gyroid Nickel Nanostructures from Diblock Copolymer Supramolecules
08:40

Gyroid Nickel Nanostructures from Diblock Copolymer Supramolecules

Published on: April 28, 2014

12.8K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.2K

相关实验视频

Last Updated: Jan 8, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
06:35

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates

Published on: February 15, 2016

8.4K
Gyroid Nickel Nanostructures from Diblock Copolymer Supramolecules
08:40

Gyroid Nickel Nanostructures from Diblock Copolymer Supramolecules

Published on: April 28, 2014

12.8K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.2K