Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

3.4K
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group...
3.4K
Carbocations02:10

Carbocations

12.7K
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...
12.7K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

42.2K
sp3d and sp3d 2 Hybridization
42.2K
Organic Compounds03:02

Organic Compounds

55.3K
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
55.3K
Structure and Physical Properties of Alkynes02:37

Structure and Physical Properties of Alkynes

12.4K
Introduction:
In nature, compounds containing both carbon and hydrogen are known as "hydrocarbons". Aliphatic hydrocarbons are compounds whose molecules contain saturated single bonds (i.e., alkanes) or unsaturated double or triple bonds. Alkenes contain carbon–carbon double bonds and have a structural formula CnH2n. Unsaturated hydrocarbons containing carbon–carbon triple bonds are called "alkynes" and are structurally represented by the formula CnH2n-2.
The...
12.4K
Structure and Nomenclature of Ethers02:28

Structure and Nomenclature of Ethers

13.7K
Structure and Bonding
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent...
13.7K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

The Sulfur Monoxide-Water Complex.

Journal of the American Chemical Society·2026
Same author

Bottom-Up Formation of the Simplest Geminal Thiol─Methanedithiol (CH<sub>2</sub>(SH)<sub>2</sub>)─and the Methyl Hydrodisulfide (H<sub>3</sub>CSSH) Isomer in Interstellar Analogue Ices.

The journal of physical chemistry letters·2026
Same author

Assessing Benzene Dimer Interactions in Solution With a Molecular Balance.

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

Non-equilibrium preparation of (<i>E</i>)-phosphinimine (HPNH, X<sup>1</sup>A') - a precursor to prebiotic phosphorylating agents.

Chemical science·2026
Same author

London Dispersion Favors <i>Cis</i> Selectivity in the Johnson-Corey-Chaykovsky Epoxidation.

The Journal of organic chemistry·2026
Same author

Synthesis of an <i>o</i>-Benzoquinone Arsenic Mononitride (As≡N) Complex and Its Reaction to Singlet Arsinonitrene.

Journal of the American Chemical Society·2026

関連する実験動画

Updated: Nov 15, 2025

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.2K

エチニルヒドロキシカルベン (H-CC-C̈-OH)

Bastian Bernhardt1, Marcel Ruth1, André K Eckhardt1

  • 1Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany.

Journal of the American Chemical Society
|March 5, 2021
PubMed
まとめ
この要約は機械生成です。

エチニルヒドロキシカルベンは 地球外化学にとって重要な分子で 合成され研究されました この同位体はトンネリングプロセスを経てプロピナルに再配置され,星間化学反応の洞察を提供します.

さらに関連する動画

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

8.2K
Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
09:35

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units

Published on: September 18, 2016

11.8K

関連する実験動画

Last Updated: Nov 15, 2025

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.2K
Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

8.2K
Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
09:35

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units

Published on: September 18, 2016

11.8K

科学分野:

  • 天体化学
  • 物理化学
  • 有機化学

背景:

  • C3H2Oの潜在エネルギー表面は,地球外化学において重要なものです.
  • 以前の研究では,エチニルヒドロキシカルベンの同位体について特徴づけられなかった.

研究 の 目的:

  • エチニルヒドロキシカルベンを合成し,特徴づけること (1).
  • エチニルヒドロキシカルベンの光化学的および熱的反応を調査する.
  • 化学反応におけるトンネルの役割を理解するために

主な方法:

  • エチニルグリオキシル酸エチルエステルの高真空フラッシュ Pyrolysis
  • 低温 (3Kと20K) で固体アルゴンマトリックスに製品を閉じ込めます.
  • 436nmでの光化学的照射とダーク反応
  • 計算化学 (CCSD(T) /cc-pVTZとB3LYP/def2-QZVPP) について

主要な成果:

  • エチニルヒドロキシカルベンは (1) 成功して生成され,閉じ込められました.
  • トランスフォーマーからシス・コンフォーマーへの照射による再配置.
  • ダーク反応は,約70時間の半減期を持つプロピナル形成につながるコンフォマー固有の[1,2]Hトンネリングプロセスを示した.
  • 計算結果は実験的観測と一致する.

結論:

  • この研究は,アストロケミカルな文脈で重要な同位体であるエチニルヒドロキシカルベンを成功裏に特徴づけた.
  • コンフォマー固有の水素トンネリングは,エチニルヒドロキシカルベンのプロピナルへの変換における重要なメカニズムである.
  • この発見は,星間環境における反応経路の理解に寄与する.