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

NMR Spectroscopy of Benzene Derivatives01:34

NMR Spectroscopy of Benzene Derivatives

11.0K
Simple unsubstituted benzene has six aromatic protons, all chemically equivalent. Therefore, benzene exhibits only a singlet peak at δ 7.3 ppm in the 1H NMR spectrum. The observed shift is far downfield because the aromatic ring current strongly deshields the protons. Any substitution on the benzene ring makes the aromatic protons nonequivalent, and the protons split each other. The peak is, therefore, no longer a singlet and the splitting pattern and their associated coupling...
11.0K
Hydrolysis of Chlorobenzene to Phenol: Dow Process01:10

Hydrolysis of Chlorobenzene to Phenol: Dow Process

3.9K
Simple aryl halides do not react with nucleophiles under normal conditions. However, the reaction can proceed under drastic conditions involving high temperatures and high pressure to give the substituted products. For example, chlorobenzene is converted to phenol using aqueous sodium hydroxide at 350 °C under high pressure by the Dow process. The reaction follows an elimination-addition mechanism involving a benzyne intermediate. Here, the chloride ion is...
3.9K
Structure of Benzene: Molecular Orbital Model01:18

Structure of Benzene: Molecular Orbital Model

12.1K
According to the molecular orbital (MO) model, benzene has a planar structure with a regular hexagon of six sp2 hybridized carbons. As shown in Figure 1, each carbon is bonded to three other atoms with C–C–C and H–C–C bond angles of 120°. The C–H bond length is 109 pm, and the C–C bond length is 139 pm which is midway between the single bond length of sp3 hybridized carbons (154 pm) and sp2 hybridized carbons (133 pm).
12.1K
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds01:14

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

1.8K
In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as...
1.8K
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.6K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.6K
Benzene to Phenol via Cumene: Hock Process01:27

Benzene to Phenol via Cumene: Hock Process

4.1K
The synthesis of phenol from benzene via cumene and cumene hydroperoxide is called the Hock process. First, a Friedel–Crafts alkylation reaction of benzene with propene gives cumene. Then cumene forms cumene hydroperoxide via a radical chain reaction. In the chain initiation step, the benzylic hydrogen is abstracted to give a benzylic radical. In the chain propagation step, the benzylic radical reacts with an oxygen diradical to form a cumene hydroperoxide radical. The cumene...
4.1K

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

Tuning of single-molecule conductance <i>via</i> regioisomerism and desilylation in (η<sup>5</sup>-Cp)Co(η<sup>4</sup>-Cb) complexes.

Chemical communications (Cambridge, England)·2026
Same author

Development of Peroxymonosulfate Catalytic System and Photoenzymatic Catalytic System Utilizing Zn-Doped g-C<sub>3</sub>N<sub>4</sub> for the Degradation of Methylene Blue in Water.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

A High-Performance Solid-State Secondary Battery Using a Triple-Phase-Interface Anode Displaying Excellent Capacity and Electrochemical Kinetics.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Integrating Protein Language Models with Multimodal Embeddings to Accelerate Function Prediction of Uncharacterized Proteins.

International journal of molecular sciences·2026
Same author

Enabling High-Performance Lithium Metal Batteries by Stabilizing the Anode Interface with a Trace 6FDA Additive.

ACS applied materials & interfaces·2026
Same author

Transforming Interfacial Reactivity Into Stability for Durable High-Current Solid-State Sodium Batteries.

Angewandte Chemie (International ed. in English)·2026
Same journal

DeepDOX1: A Dual-Drive Framework Integrating Deep Learning and First-Principles Quantum Chemistry for Drug-Protein Affinity Prediction.

JACS Au·2026
Same journal

Catalyst-Controlled Regiodivergent C-H Olefination of Furanyl Carbamates through a Rational Approach.

JACS Au·2026
Same journal

Charting the Biosynthetic Landscape of Hybrid Polyketide-Nonribosomal Peptide-Specialized Lipids.

JACS Au·2026
Same journal

Valence-State-Dependent Surface Lattice Oxygen in CeO<sub>2</sub>‑Modified VPO Catalysts: Elucidating the Mechanism of <i>n</i>‑Butane Selective Oxidation to Maleic Anhydride.

JACS Au·2026
Same journal

Quantitative Insights into Pressure-Dependent Mass Transport and Reaction Kinetics in Electrochemical CO<sub>2</sub> Reduction.

JACS Au·2026
Same journal

3‑Methylthiopropionic Acid Kills Carbapenem-Resistant <i>Klebsiella pneumoniae</i> by Disrupting Membrane Integrity and Bioenergetics.

JACS Au·2026
查看所有相关文章

相关实验视频

Updated: Jan 16, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
07:06

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid

Published on: November 15, 2017

12.0K

酸:电子流合成和长度依赖性属性

Qiang Wang1, Wei-Zhen Wang1, Ruiying Zhang1

  • 1Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.

JACS Au
|September 26, 2025
PubMed
概括
此摘要是机器生成的。

研究人员使用电化学流Scholl反应开发了扭曲的基延伸[n]-phenacenes的绿色合成. 这种方法有效地产生多环芳,用于有机电子的可调节光学带隙.

关键词:
连续的流量流动连续的流动.对于GNR来说,它是非常重要的.肖尔反应是肖尔反应.这是电合成的电解.酸是一种酸.

更多相关视频

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

10.0K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.4K

相关实验视频

Last Updated: Jan 16, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
07:06

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid

Published on: November 15, 2017

12.0K
Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
08:51

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core

Published on: October 24, 2017

10.0K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.4K

科学领域:

  • 有机化学 有机化学
  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学

背景情况:

  • 多环芳 (PAH) 在有机电子产品中至关重要.
  • 开发复杂PAH的高效和可持续的合成途径,如延伸[n]- ([n]-BPs),仍然是一个挑战.
  • 调整PAHs的电子特性对于优化设备性能至关重要.

研究的目的:

  • 开发一种高效,绿色和可扩展的合成策略,用于扭曲的基延伸[n]-烯酸 ([n]-BP).
  • 研究分子长度对[n]-BPs光物理性质的影响.
  • 为了使有机半导体设备中的潜在应用能够轻松进行带隙调制.

主要方法:

  • 一个单三组件的苏苏基-米亚乌拉合反应,合成[n]-BP前体.
  • 一种电化学流 (e-流) 肖尔反应,用于有效合成扭曲的[n]-BPs.
  • 合成的[n]-BPs及其光物理性质的表征.

主要成果:

  • 通过绿色和可持续的e-flow Scholl反应,成功合成了各种扭曲的[n]-BP.
  • 电子流Scholl反应表明氧化剂使用减少和过氧化副产品.
  • [n]-BPs分子长度的增加导致光学带隙的减少,调整光物理性质.
  • 该方法允许通过延长电解时间轻松扩大规模.

结论:

  • 开发的e-flow Scholl反应为复杂的[n]-BP提供了一个高效和可持续的途径.
  • 合成策略通过π-结合扩展实现了简单的带隙调制.
  • 通过这种方法合成的[n]-BPs显示了在有机半导体设备中的应用潜力.