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 Comparison of Gases, Liquids, and Solids02:26

Molecular Comparison of Gases, Liquids, and Solids

Particles in a solid are tightly packed together (fixed shape) and often arranged in a regular pattern; in a liquid, they are close together with no regular arrangement (no fixed shape); in a gas, they are far apart with no regular arrangement (no fixed shape). Particles in a solid vibrate about fixed positions (cannot flow) and do not generally move in relation to one another; in a liquid, they move past each other (can flow) but remain in essentially constant contact; in a gas, they move...
Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation04:01

Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation

Thus far, the ideal gas law, PV = nRT, has been applied to a variety of different types of problems, ranging from reaction stoichiometry and empirical and molecular formula problems to determining the density and molar mass of a gas. However, the behavior of a gas is often non-ideal, meaning that the observed relationships between its pressure, volume, and temperature are not accurately described by the gas laws.
Adsorption of Gases on Solids01:28

Adsorption of Gases on Solids

Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
Intermolecular Forces and Physical Properties02:56

Intermolecular Forces and Physical Properties

Intermolecular Forces03:13

Intermolecular Forces

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 bonds, and dispersion...
Intermolecular Forces03:13

Intermolecular Forces

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 bonds, and dispersion...

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

Controlling and measuring local composition and properties in lipid bilayer membranes.

Journal of biological physics·2013
Same author

Patterning small-molecule biocapture surfaces: microcontact insertion printing vs. photolithography.

Chemical communications (Cambridge, England)·2011
Same author

Nanoscale characterization of gold colloid monolayers:  a comparison of four techniques.

Analytical chemistry·2011
Same author

Microdisplacement printing.

Nano letters·2005
Same author

Nanotechnology. Molecules join the assembly line.

Nature·2001
Same author

Conductance switching in single molecules through conformational changes.

Science (New York, N.Y.)·2001

相关实验视频

Updated: Jul 12, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

二维气体-固体界面的原子尺度动态.

S J Stranick, M M Kamna, P S Weiss

    Science (New York, N.Y.)
    |October 7, 1994
    PubMed
    概括

    研究人员使用扫描道显微镜对二维分子气体和固体之间的接口进行了成像. 烯分子形成了一个移动的二维气体和一个固体在铜表面的边缘.

    科学领域:

    • 表面科学是一门科学.
    • 物理化学 物理化学
    • 材料科学是一种材料科学.

    背景情况:

    • 了解界面上的分子行为对于材料设计至关重要.
    • 二维 (2D) 分子系统由于缩小维度而具有独特的特性.

    研究的目的:

    • 想象和描述2D分子气体和2D分子固体之间的接口.
    • 为了研究这个界面上的分子动态.

    主要方法:

    • 低温,超高真空扫描道显微镜 (STM).
    • 使用Cu{111}表面与分子.

    主要成果:

    • 成功成像了二维气和固体之间的接口.
    • 观察到分子在露台上形成一个移动的二维气体,在台阶边缘形成一个固体.
    • 记录了位点之间的分子扩散和界面上的相交换.
    • 展示了2D气体在高架露台上的2D固体"子"中被限制.

    结论:

    • 该研究提供了分子层面的2D气体-固体接口的直接可视化.
    • 烯分子在气体和固体相的界面上表现出不同的行为.

    更多相关视频

    Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
    06:37

    Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

    Published on: September 17, 2021

    相关实验视频

    Last Updated: Jul 12, 2026

    An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
    11:03

    An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

    Published on: December 4, 2017

    Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
    06:37

    Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

    Published on: September 17, 2021

  • 观察到的动态对于理解分子自我组装和表面现象至关重要.