Jove
Visualize
联系我们
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

相关概念视频

Molecular Orbital Theory II03:51

Molecular Orbital Theory II

19.9K
Molecular Orbital Energy Diagrams
19.9K
Intermolecular Forces and Physical Properties02:56

Intermolecular Forces and Physical Properties

22.9K
22.9K
Intermolecular Forces03:13

Intermolecular Forces

61.4K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
61.4K
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility

46.1K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
46.1K
Molecular Shapes01:18

Molecular Shapes

58.8K
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...
58.8K
Entropy and Solvation02:05

Entropy and Solvation

7.2K
The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
7.2K

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

Hydrogen-Bond Network Collapse and Molecular Confinement in Ethanol-Water Mixtures at the Azeotrope.

The journal of physical chemistry letters·2026
Same author

Cyclable manganese inventory as a mechanistic descriptor for electrolyte design in rechargeable aqueous Zn-MnO<sub>2</sub> batteries.

Chemical communications (Cambridge, England)·2026
Same author

Raman evidence for a solvation-heterogeneity-mediated precipitation pathway of sodium sulfate in water-DMSO mixtures.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2026
Same author

Pathway-level epigenetic modeling illuminates the methylation architecture to asthma risk across tissues.

Epigenetics & chromatin·2026
Same author

Retinol dehydrogenase 11 promotes prostate cancer progression through upregulation of tropomyosin receptor kinase A.

Cancer biology & therapy·2026
Same author

Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil.

BMC plant biology·2026

相关实验视频

Updated: Sep 19, 2025

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

8.9K

二元TMS-H2O/D2O混合物中的集群结构演变:对分子相互作用的洞察

Xueliang Xu1, Xiaokai Liu1, Haixin Wang1

  • 1Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|June 3, 2025
PubMed
概括

四甲硫 (TMS) 改变了水和重水的集群,没有直接的键. 添加TMS改变了水结构,并影响了重水集群的动态,影响了拉曼光谱.

关键词:
异常的气结合 异常的气结合分子集群是分子集群.刺激拉曼光谱法 刺激拉曼光谱法TMS-H(2)O/D(2)OO的时间.水的结构 水的结构

更多相关视频

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry
12:11

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

8.3K
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

8.2K

相关实验视频

Last Updated: Sep 19, 2025

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy
10:28

Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

Published on: May 27, 2018

8.9K
Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry
12:11

Computation of Atmospheric Concentrations of Molecular Clusters from ab initio Thermochemistry

Published on: April 8, 2020

8.3K
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

8.2K

科学领域:

  • 物理化学 物理化学
  • 频谱学是一种光谱学.
  • 解决方案化学 解决方案化学

背景情况:

  • 了解溶剂-溶解物相互作用对于化学过程至关重要.
  • 水溶液中的结网决定了它们的特性.
  • 四甲硫 (TMS) 是一种有机溶剂,具有独特的特性.

研究的目的:

  • 为了研究四甲硫 (TMS) -水/重水二元溶液中的结网.
  • 为了阐明水和重水因TMS度变化而产生的结构变化.
  • 分析TMS对分子聚类和键动态的影响.

主要方法:

  • 自发的拉曼光谱学.
  • 刺激拉曼光谱法 刺激拉曼光谱法
  • 对TMS与水/重水的不同体积比率的二进制溶液进行分析.

主要成果:

  • TMS与水或重水分子没有直接的键.
  • 增加TMS度会改变水的聚合,有利于在60%VTMS以下的二元和三元.
  • 通过影响OD键对称性,TMS影响重水集群结构,导致拉曼峰的转移.
  • 在60%以上的VTMS,水/重水集群的结构变化减少.
  • 刺激的拉曼光谱显示一个单一的峰值超过25%VTMS.

结论:

  • 硫四甲基作为水和重水溶液中的结构破坏剂.
  • 观察到的光谱变化为TMS破坏结网络提供了洞察力.
  • 这些发现有助于理解复杂的水系统中的溶剂效应.