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

Radical Formation: Homolysis00:54

Radical Formation: Homolysis

4.6K
A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
4.6K
Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids02:04

Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

8.0K
Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.
8.0K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide02:44

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

13.3K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
13.3K
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate02:21

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

17.9K
Alkenes can be dihydroxylated using potassium permanganate.  The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.
17.9K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

50.2K
sp3d and sp3d 2 Hybridization
50.2K
Acid Halides to Carboxylic Acids: Hydrolysis01:01

Acid Halides to Carboxylic Acids: Hydrolysis

3.7K
Hydrolysis of acid halides is a nucleophilic acyl substitution reaction in which acid halides react with water to give carboxylic acids. The reaction occurs readily and does not require acid or a base catalyst.
As shown below, the mechanism involves a nucleophilic attack by water at the carbonyl carbon to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen π bond along with the departure of a halide ion. A final proton transfer step yields carboxylic...
3.7K

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

Probing anharmonic and heterogeneous carrier dynamics across sublattice melting in a minimal model superionic conductor.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

A new species of <i>Phalacrostemma</i> (Annelida, Sabellariidae) from the West Mariana Ridge, northwestern Pacific.

ZooKeys·2026
Same author

Improvement of Checklist for Briefing in Apheresis Therapy and Its Efficacy.

Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy·2026
Same author

Short- and long-term dynamics of gut microbiota, highlighting Fusobacterium nucleatum, Parvimonas micra, and Peptostreptococcus stomatis after colorectal cancer resection: prospective cohort study.

BJS open·2026
Same author

Risk Assessment of Non-Urinary Tract Recurrence After Radical Nephroureterectomy Based on CheckMate 274 Trial Eligibility: A Multicenter Retrospective Study.

International journal of urology : official journal of the Japanese Urological Association·2026
Same author

Correction: Kobayashi et al. Pathogenesis of Graves' Disease Determined Using Single-Cell Sequencing with Thyroid Autoantigen Peptide Stimulation in B Cells. <i>Cells</i> 2025, <i>14</i>, 1102.

Cells·2026

相关实验视频

Updated: Mar 24, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

9.7K

氧化中的纯导

Genki Kobayashi1, Yoyo Hinuma2, Shinji Matsuoka3

  • 1Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan. Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan. gkobayashi@ims.ac.jp kanno@echem.titech.ac.jp.

Science (New York, N.Y.)
|March 19, 2016
PubMed
概括

研究人员开发了用于纯离子 (H-) 导电的新型氧化,这是储能和转换装置的突破. 这一发现为使用离子导体的先进电化学应用铺平了道路.

更多相关视频

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
10:01

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

Published on: December 4, 2017

12.8K
Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.8K

相关实验视频

Last Updated: Mar 24, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
12:30

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework

Published on: April 9, 2018

9.7K
Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
10:01

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

Published on: December 4, 2017

12.8K
Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
14:11

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

27.8K

科学领域:

  • 材料科学
  • 固态化学
  • 电化学

背景情况:

  • 对于燃料电池等电化学装置,已经确定了导质子 (H+) 氧化物.
  • 氧化物中的纯离子 (H-) 导电,与混合离子电子导电不同,仍然没有实现.
  • 由于它们的大小和减少能力,化物离子具有快速运输和高能量储存的潜力.

研究的目的:

  • 合成和研究用于纯离子 (H-) 导电的新型氧化物材料.
  • 探索K2NiF4类型氧化作为离子导体的潜力.
  • 在完全固态电化学电池中证明纯导的可行性.

主要方法:

  • 一系列K2NiF4型氧化的合成,其一般式为La(2-x-y) Sr(x + y) LiH(1-x + y) O(3-y).
  • 一个全固态TiH2/o-La2LiHO3/Ti电化学电池的制造和测试.
  • 电化学性能评估以确认传导机制.

主要成果:

  • 成功制备K2NiF4类型的氧化.
  • TiH2 / o-La2LiHO3 / Ti电池证明了纯离子 (H-) 导电的确证据.
  • 合成的氧化,特别是o-La2LiHO3 (x=y=0),表现出纯H-导电性.

结论:

  • 这项研究首次成功地证明了氧化物基材料中的纯离子 (H-) 导电性.
  • 开发的氧化是需要高效的运输的先进电化学装置的有希望的候选物.
  • 这一突破为使用离子导体的高能储能和转换技术开辟了新的途径.