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

Van der Waals Interactions01:24

Van der Waals Interactions

64.0K
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.
64.0K
Intermolecular Forces03:13

Intermolecular Forces

58.3K
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...
58.3K
Spontaneity02:21

Spontaneity

23.9K
A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source. Processes have a natural tendency to occur in one direction under a given set of conditions. Water will naturally flow downhill (spontaneous process), but uphill flow (nonspontaneous process) requires outside intervention such as the use of a pump. Iron exposed to...
23.9K
Interaction of EM Radiation with Matter: Spectroscopy01:12

Interaction of EM Radiation with Matter: Spectroscopy

1.7K
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
1.7K
Deactivation Processes: Jablonski Diagram01:25

Deactivation Processes: Jablonski Diagram

666
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
666
Intermolecular Forces and Physical Properties02:56

Intermolecular Forces and Physical Properties

20.8K
20.8K

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

Solvent and Substitution Effects on the Excited-State Dynamics of Triphenylamines [6π] Electrocyclization: A Laser Flash Photolysis Investigation.

The Journal of organic chemistry·2026
Same author

Multimodal Mechanism of Antitumoral Ni(II) Thiosemicarbazones: Deep Mechanistic Understanding of ROS Dynamics, Albumin-Mediated Delivery, and DNA Targeting.

ACS omega·2026
Same author

Metal-Dependent Photodissociation of Hydrazone Photoswitches from Rare-Earth Complexes.

Journal of the American Chemical Society·2026
Same author

C-H Arylation of Imidazo[1,2-<i>a</i>]pyridines and Zolimidines Catalyzed by Synergistic Tripalladium Clusters.

Organic letters·2026
Same author

Synthesis of aryl sulfides <i>via</i> visible light-induced solventylation in diarylazo sulfides.

Chemical communications (Cambridge, England)·2026
Same author

Arylazo Sulfones as 1,3-Dipole Acceptors in the (Photo)-Micellar van Leusen Triazole Synthesis.

ACS organic & inorganic Au·2025

相关实验视频

Updated: Jul 5, 2025

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

6.8K

通过分散相互作用促进能量转移过程.

Alessandro Cerveri1, Gabriele Scarica1, Sara Sparascio1

  • 1Department of Chemistry, Life Sciences and Environmental Sustainability, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy.

Chemistry (Weinheim an der Bergstrasse, Germany)
|January 15, 2024
PubMed
概括

研究人员开发了一种一般的催化策略,使用纳夫他林或双衍生物来增强可见光促进的反应. 这种方法提高了效率,并为开放介质提供了新的合成途径.

关键词:
催化剂是一种催化剂.循环添加 循环添加能源转移 能源转移 能源转移激进反应是一种激进的反应.π π 相互作用的相互作用

更多相关视频

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

8.4K
Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization
09:35

Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization

Published on: December 25, 2017

28.4K

相关实验视频

Last Updated: Jul 5, 2025

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

6.8K
Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

8.4K
Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization
09:35

Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization

Published on: December 25, 2017

28.4K

科学领域:

  • 有机化学 有机化学
  • 光催化作用的光催化
  • 合成方法论 合成方法论

背景情况:

  • 开式中间体在现代合成中至关重要,但通常需要高度特定的反应条件.
  • 优化这些条件以实现高效的基质转换可能是具有挑战性和耗时的.
  • 可见光光催化剂提供了温和的条件,但在广泛应用方面仍然面临挑战.

研究的目的:

  • 制定一项通用和广泛适用的战略,以加强可见光促进的能量转移过程.
  • 为了克服针对涉及开中间体的反应的具体情况参数调整的局限性.
  • 建立一种新的催化方法,提高效率并扩大合成可能性.

主要方法:

  • 研究了纳夫他林和双纳衍生物作为可见光光催化剂的添加剂的使用.
  • 评估了这些添加剂在各种反应介质,光催化剂,光源和基质中的效率.
  • 量化了甲烯 (5-20等值) 的影响. 和双纳衍生物 (10-30mol%) 的反应结果.

主要成果:

  • 纳弗和比纳弗衍生物显著提高可见光促进的能量转移反应的效率.
  • 这种增强在各种不同的实验条件中得到了一致的观察.
  • 该策略可以更容易地优化现有方法,并探索新的反应途径.

结论:

  • 一个使用简单的芳香添加剂的通用催化策略已被建立为可见光光催化.
  • 这种方法简化了反应优化,并扩大了可访问的合成转换的范围.
  • 这些发现为在温和高效条件下生成开中间体提供了强大的工具.