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

Alcohols from Carbonyl Compounds: Reduction02:23

Alcohols from Carbonyl Compounds: Reduction

10.5K
Reduction is a simple strategy to convert a carbonyl group to a hydroxyl group. The three major pathways to reduce carbonyls to alcohols are catalytic hydrogenation, hydride reduction, and borane reduction.
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
10.5K
Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration02:34

Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration

8.5K
The rate of acid-catalyzed hydration of alkenes depends on the alkene's structure, as the presence of alkyl substituents at the double bond can significantly influence the rate.
8.5K
Oxidation and Reduction of Organic Molecules01:19

Oxidation and Reduction of Organic Molecules

6.7K
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
The removal of an electron from a molecule, results in a...
6.7K
Carboxylic Acids to Primary Alcohols: Hydride Reduction01:17

Carboxylic Acids to Primary Alcohols: Hydride Reduction

3.1K
Carboxylic acids, upon reaction with strong reducing agents such as lithium aluminum hydride followed by hydrolysis, undergo reduction to form primary alcohols.
3.1K
Carbocations02:10

Carbocations

11.4K
Carbocations are one of the reaction intermediates formed during several nucleophilic substitutions or elimination reactions. A carbocation is an electron-deficient species with the central carbon atom having six electrons and three bonded atoms. The central carbon in a carbocation is sp2 hybridized with trigonal planar geometry. It has an empty p orbital perpendicular to the plane of the structure that can accept electrons. Thus, carbocations act as strong electrophiles and may react with any...
11.4K
Nitriles to Amines: LiAlH4 Reduction00:55

Nitriles to Amines: LiAlH4 Reduction

3.6K
Nitriles are reduced to amines in the presence of strong reducing agents like lithium aluminum hydride through a typical nucleophilic acyl substitution. The reaction requires two equivalents of the reducing agent. The reducing agent acts as a source of hydride ions.
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
3.6K

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

Stability of Some Ternary 13-Atom Icosahedral Clusters Assessed with Geometric, Electronic, and Thermodynamic Criteria.

The journal of physical chemistry. A·2026
Same author

Decoding Polyether-Cation Interactions: Computational Strategies for Agricultural Applications.

Polymers·2026
Same author

Solvation-Driven Self-Assembly of Polyetheramine-Epoxide Gels: Insights from Molecular Simulations.

ACS polymers Au·2026
Same author

Shedding Light on the Capabilities of Heteroditopic Mechanically Interlocked Molecules in Ion-Pair Sensing.

The journal of physical chemistry. A·2026
Same author

From NO to NTe: <i>In Silico</i> Study of Ruthenium Compounds Containing Chalcogenonitrosyl Ligands.

ACS omega·2026
Same author

Enhanced Antifungal Efficacy through Controlled Delivery of Amphotericin B Loaded in Polyetheramine-Epoxide Nanogels.

ACS polymers Au·2025

相关实验视频

Updated: Jul 28, 2025

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

9.3K

通过质子化或化学还原控制的阴离子识别:一个计算研究.

Renato Pereira Orenha1,2, Alexandre Borges3,4, Ana Lívia de Oliveira Andrade2

  • 1Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, SC, 88040-900, Brazil. rpo9@hotmail.com.

Physical chemistry chemical physics : PCCP
|May 30, 2023
PubMed
概括

与铁素衍生物相比,碳氧酸皇冠乙烯表现出优越的阴离子识别能力. 结构修改,如添加电子捐赠组,增强对较小的离子的结合亲和力,优化分子识别.

更多相关视频

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
05:51

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method

Published on: July 19, 2019

6.3K
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

2.4K

相关实验视频

Last Updated: Jul 28, 2025

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
11:04

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides

Published on: September 7, 2019

9.3K
Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
05:51

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method

Published on: July 19, 2019

6.3K
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

2.4K

科学领域:

  • 超分子化学 超分子化学
  • 协调化学 协调化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 涉及离子的非共价相互作用对于控制生化过程至关重要.
  • 合成受体对离子体的识别对于传感和分离的应用至关重要.
  • 皇冠以太是建立了子结合的支架,但它们的性能可以调整.

研究的目的:

  • 阐明和调整碳酸和铁功能化皇冠衍生物的阴离子结合相互作用.
  • 研究电子供体 (-NH2) 和受体 (-NO2) 组替代对阴子识别的影响.
  • 为了比较碳酸与基于铁的皇冠乙烯系统的阴离子识别能力.

主要方法:

  • 功能化皇冠衍生物的合成 (碳酸和基于铁).
  • 计算研究分析结合情况和静电相互作用.
  • 替代品的系统变化,以调整电子特性和硬质效应.

主要成果:

  • 碳基组的脱化通过静电相互作用显著增强了阴离子结合.
  • 铁衍生物表现出改善的阳离子识别与减少的铁排斥.
  • 由于有利的静电和轨道相互作用,受体优先结合较小的子 (Li +,Na +,K +).
  • 碳酸衍生物的电子捐赠/接受组调节了相互作用,电子捐赠者的亲和力通常会下降.
  • 在铁中用-NH2取代-H,通过加强的静电和西格玛键增强了识别能力.
  • 碳酸衍生物由于电子密度和缺乏排斥性相互作用而表现出比铁素化合物更好的阴离子相互作用.

结论:

  • 皇冠以太衍生品的结构修改提供了一个强大的策略来调整定位识别.
  • 碳酸功能化皇冠乙烯显示出比铁衍生物更大的潜力用于阴子识别应用.
  • 了解结构-属性关系是设计特定的先进分子受体的关键.