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

Carboxylic Acids to Methylesters: Alkylation using Diazomethane01:33

Carboxylic Acids to Methylesters: Alkylation using Diazomethane

2.2K
Carboxylic acids react with diazomethane in an ether solvent via alkylation at the carboxylate oxygen atom to give methyl esters of the corresponding acid with excellent yields.
2.2K
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism01:37

1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism

3.8K
Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
3.8K
Diazonium Group Substitution: –OH and –H01:19

Diazonium Group Substitution: –OH and –H

2.8K
Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
2.8K
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

1.9K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1.9K
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview01:26

1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview

3.3K
Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by...
3.3K
Valence Bond Theory02:42

Valence Bond Theory

8.6K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.6K

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

Environment-enabled fault diagnosis system for photovoltaic power stations.

The Review of scientific instruments·2026
Same author

From greasiness to creaminess: multiscale mechanisms, structuring strategies, and AI‑assisted evaluation.

Critical reviews in food science and nutrition·2026
Same author

Microbial and enzymatic synergy in fermented fish: impacts on flavor, texture, and safety with multi-omics and AI insights.

Food chemistry: X·2026
Same author

Reactivity Studies on the Terminal Thorium Imido Metallocene (η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)<sub>2</sub>Th(═Ndipp)(dmap).

Inorganic chemistry·2026
Same author

Predicting major adverse cardiovascular and cerebrovascular events in chronic heart failure: a machine learning study.

Annals of medicine·2026
Same author

Structural engineering of bacterial cellulose-deacetylated konjac glucomannan composite hydrogels via one step fermentation.

Carbohydrate polymers·2026

相关实验视频

Updated: Jul 12, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
04:51

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Published on: June 23, 2023

2.9K

对二甲二氧化复合物的实验和计算研究.

Tongyu Li1, Dongwei Wang1, Yi Heng1

  • 1Department of Chemistry, Beijing Normal University, Beijing, 100875, China.

Angewandte Chemie (International ed. in English)
|October 26, 2023
PubMed
概括

研究人员合成了新的二甲复合物,揭示了独特的结合和反应性. 这些稳定的化合物为有机金属化学和潜在应用提供了洞察力.

关键词:
动因化物 动因化物 动因化物结合的结合 结合的结合甲二氧化物复合物 甲二氧化物复合物反应性 反应性 反应性是一种.

更多相关视频

Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

2.3K
U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

8.1K

相关实验视频

Last Updated: Jul 12, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
04:51

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Published on: June 23, 2023

2.9K
Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

2.3K
U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
12:05

U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen

Published on: February 21, 2019

8.1K

科学领域:

  • 有机金属化学 有机金属化学
  • 化学 的化学
  • 协调化学 协调化学

背景情况:

  • 胺化合物是有机金属合成中的多功能前体.
  • 对f元素复合体的新型配体的探索仍然是一个活跃的研究领域.

研究的目的:

  • 为了合成和表征新的二甲复合物.
  • 研究这些新型复合物的结构,电子和反应性质.

主要方法:

  • 合成等离子化合物.
  • 与三甲基基二甲反应,形成二甲基二甲化物复合物.
  • 完整的表征包括X射线晶体学.
  • 密度函数理论 (DFT) 的计算.

主要成果:

  • 成功合成了第一种异胺复合物.
  • 合成化合物的显著热稳定性得到证明.
  • DFT研究揭示了U-NNC结合中强烈的两极分化和显著的5f轨道贡献.

结论:

  • 新型二甲复合物具有独特的电子结构.
  • 它们的反应性包括核性行为和 [2+2] 循环添加,突出了它们在合成化学中的潜力.