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 Anions: Structural Overview01:18

Aromatic Hydrocarbon Anions: Structural Overview

2.8K
Neutral hydrocarbons like cyclopentadiene with an odd number of carbon atoms and one intervening CH2 group in the ring are not aromatic. Cyclopentadiene with 4 π electrons does not satisfy the 4n + 2 π electron rule. Additionally, the intervening CH2 group is sp3 hybridized and lacks a vacant p orbital, thereby interrupting the overlap of p orbitals in a continuous manner and preventing the delocalization of π electrons throughout the ring.
Due to the absence of continuous...
2.8K
Network Covalent Solids02:18

Network Covalent Solids

13.5K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
13.5K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

47.2K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
47.2K
Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

2.8K
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...
2.8K
Structures of Carboxylic Acid Derivatives01:28

Structures of Carboxylic Acid Derivatives

2.6K
Structure of Carboxylic Acid Derivatives
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the...
2.6K
Carbon Skeletons01:12

Carbon Skeletons

107.7K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
107.7K

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

Controlling the Subpicosecond Coherent Spin and Valley Dynamics with Anomalous Magnetic Proximity Effect.

Physical review letters·2026
Same author

Rational Asymmetric Acceptor Engineering via Unidirectional Terminal π-Extension and Optimizing Alkyl Branching Sites Affords a Binary Photovoltaic Efficiency of 20.7% by Suppressed Nonradiative Energy Loss.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Synergistic Electronic and Steric Engineering of Thiophene Donors in Covalent Organic Frameworks for Efficient CO<sub>2</sub> Photoconversion.

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

Recent Advances in Thermo- and Photostabilities of Organic Solar Cells: Material Design and Morphology Control.

Polymer science & technology (Washington, D.C.)·2026
Same author

Ternary organic solar cells: optimizing the third components.

Chemical Society reviews·2026
Same author

Altermagnetic Magnons in Twisted van der Waals Antiferromagnets.

Nano letters·2026
Same journal

Proton-Gated Torsional Spring for Molecular Energy Storage.

Journal of the American Chemical Society·2026
Same journal

Topologically Programmed Dual-Channel Covalent Organic Frameworks Decouple Gas and Ion Fluxes for Acidic CO<sub>2</sub> Electroreduction.

Journal of the American Chemical Society·2026
Same journal

Plasmonic Re-Excitation Enables Superoxide-Mediated Ethane Conversion to Acetic Acid under Visible Light.

Journal of the American Chemical Society·2026
Same journal

Photocatalytic Controlled Halodefluorination of Perfluoroalkyl Compounds Using <i>N</i>-Arylphenothiazines.

Journal of the American Chemical Society·2026
Same journal

Photoinduced Disproportionation Enables Oxidative Addition of Aryl Iodides at a Gallium(I) Center.

Journal of the American Chemical Society·2026
Same journal

Biocatalytic C3 β-<i>O</i>-Glycosylation of Triterpenes and Sterols to Synthesize Natural and Unnatural Saponins.

Journal of the American Chemical Society·2026
関連記事をすべて見る

関連する実験動画

Updated: Jul 12, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
08:42

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

13.4K

カーボランベースの3次元共性有機フレームワーク

Xiaoyi Xu1, Qirui Cui2, Hongzheng Chen1

  • 1State Key Laboratory of Silicon and Advanced Semiconductor Materials, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China.

Journal of the American Chemical Society
|October 27, 2023
PubMed
まとめ
この要約は機械生成です。

効率的なヘクサン同位体分離のための 3Dカルボラン基の 協和有機フレームワーク (COF) を開発しました これらの頑丈な材料は,高度な吸収用途に適した高カルボラン含量と例外的な多孔性を備えています.

さらに関連する動画

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

2.6K
Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

2.8K

関連する実験動画

Last Updated: Jul 12, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
08:42

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

Published on: July 10, 2017

13.4K
Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

2.6K
Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

2.8K

科学分野:

  • 材料科学
  • ナノテクノロジー
  • 化学工学

背景:

  • COFは,高度なアプリケーションのために調節可能な多孔構造を提供します.
  • COFの構成,トポロジー,および安定性を正確に制御することは依然として大きな課題です.
  • 最先端の問題に取り組むには,機能強化された新しい3D COFの開発が不可欠です.

研究 の 目的:

  • 新しい3次元 (3D) のカーボラン基COFを合成し,特徴づけること.
  • このCOFがヘクサンのイソマーを吸収し分離する可能性を調査する.
  • COFの構造,カルボラン含量,分離性能との関係を調べる.

主な方法:

  • カーボラン基の3DCOFの合成と7倍相互貫通するダイアトポロジック図.
  • COFの結晶性,多孔性,構造的強さの特徴
  • B-H·H-C相互作用に基づくヘクサン同位体分離におけるCOFの性能の評価

主要な成果:

  • 合成されたCOFは高結晶性,例外的な多孔性,および強い強度を示した.
  • 炭酸ガスの含有量は54.2%に達し,多孔質の材料で報告された最高値である.
  • COFは,独特のB-H極化と高表面積により,ヘキサン同位体の高性能吸収と分離を証明した.

結論:

  • 開発された3DカーボランベースのCOFは,効率的なアルカン同位体分離のための有望なプラットフォームを提供します.
  • この研究は,機能的な3DCOFの多様性を拡大し,ガス分離におけるその可能性を実証しています.
  • 高カルボラン含有量と堅固な構造により,これらのCOFは困難な分離作業に効率的な吸着剤となります.