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

Carbon Skeletons01:12

Carbon Skeletons

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 chains...
Network Covalent Solids02:18

Network Covalent Solids

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...
Structure and Bonding of Alkenes02:47

Structure and Bonding of Alkenes

Olefins, which are unsaturated hydrocarbons containing one or more carbon–carbon double bonds, are broadly divided into alkenes and cycloalkenes. The general chemical formula of an alkene is CnH2n.
Doubly bonded carbons are sp2 hybridized and have a trigonal planar geometry. The double bond is composed of a σ bond formed by the overlap of hybrid orbitals and a π bond produced by the lateral overlap of unhybridized 2p orbitals on both the carbons. Each carbon atom is bonded to two hydrogen atoms...
Structure of Conjugated Dienes01:16

Structure of Conjugated Dienes

Introduction
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
Aromatic Hydrocarbon Anions: Structural Overview01:18

Aromatic Hydrocarbon Anions: Structural Overview

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 overlap of p...
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta catalyst, high molecular...

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

Rationalized Volcano Plot in Heterogeneous Electrochemiluminescence.

ACS electrochemistry·2026
Same author

Polymorphism-dependent room-temperature phosphorescence of a persulfurated benzene.

Chemical communications (Cambridge, England)·2026
Same author

Twist and Shine: The Impact of Halogen Substitution on Thiele Hydrocarbon's Optical Properties.

Angewandte Chemie (International ed. in English)·2025
Same author

Synthesis and Excited-State Dynamics in Molecular Nanographene: Herzberg-Teller Vibronic Coupling and Energy Transfer to Porphyrins.

Journal of the American Chemical Society·2025
Same author

Room-Temperature Phosphorescence Vapochromism through Conformational Control.

Journal of the American Chemical Society·2025
Same author

Excited State Dynamics of Odd [<i>n</i>]Cumulenes: Chain Length and Conformational Effects.

Journal of the American Chemical Society·2025

関連する実験動画

Updated: Jul 9, 2026

Nanothermite with Meringue-like Morphology: From Loose Powder to Ultra-porous Objects
07:46

Nanothermite with Meringue-like Morphology: From Loose Powder to Ultra-porous Objects

Published on: December 24, 2017

部分的な"ジグ・ザグ"の周辺を持つグラフィティック分子.

Zhaohui Wang1, Zeljko Tomović, Marcel Kastler

  • 1Max-Planck-Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.

Journal of the American Chemical Society
|June 24, 2004
PubMed
まとめ
この要約は機械生成です。

研究者は,独特の"ジグ・ザグ"の縁を持つヘクサ・ペリ・ヘクサベンゾコロネン (HBC) 誘導体のための新しい合成を開発しました. この画期的な発見により,グラフィティック材料の理解が進んでいます.

さらに関連する動画

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
09:37

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Published on: October 18, 2019

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)
08:59

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Published on: December 16, 2019

関連する実験動画

Last Updated: Jul 9, 2026

Nanothermite with Meringue-like Morphology: From Loose Powder to Ultra-porous Objects
07:46

Nanothermite with Meringue-like Morphology: From Loose Powder to Ultra-porous Objects

Published on: December 24, 2017

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
09:37

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry

Published on: October 18, 2019

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)
08:59

Determination of Aggregate Surface Morphology at the Interfacial Transition Zone (ITZ)

Published on: December 16, 2019

科学分野:

  • マテリアルサイエンス 材料科学
  • 有機化学 オーガニック・ケミストリー
  • ナノテクノロジー ナノテクノロジー

背景:

  • ポリサイクルアロマティック炭化水素 (PAH) のようなグラフィティック材料は,分子構造の影響を受けたユニークな電子特性を示します.
  • PAHの周辺構造を制御することは,それらの電子的振る舞いを調節し,特定のアプリケーションを可能にするために不可欠です.
  • 既存の合成方法では,複雑なPAHアーキテクチャ,特に非線形 (ジグ/ザグ) 周辺を持つものを正確に設計するのに苦労することが多い.

研究 の 目的:

  • ヘクサペリヘクサベンゾコロネン (HBC) の誘導体を作るための新しい合成プロトコルを開発する.
  • 部分的に定義された"ジグ/ザグ"の周辺部でHBC誘導体を調査する.
  • これらの構造変化がグラフィティック材料の電子特性に与える影響を調査する.

主な方法:

  • 新しい合成方法論が設計され,実装されました.
  • このプロトコルは,新しいHBC誘導体を合成するために適用されました.
  • この方法論は,その後,より大きなPAHシステムに拡張され",ジグ/ザグ"の特徴が強化されました.

主要な成果:

  • 開発されたプロトコルは,部分的な"ジグ/ザグ"周辺を持つ新しいHBC誘導体を成功裏に生成しました.
  • これらの新しいデリバティブは,以前に知られているHBCと比較して,著しく変化した電子特性を表しています.
  • 合成アプローチは,より複雑な"ジグ/ザグ"構造を持つより大きなPAHに適用できる多用途であることが証明されました.

結論:

  • オーダーメイドのグラフィティック材料のための多用途の合成ルートが確立されています.
  • この研究は,HBCsおよび関連するPAHsにおける構造-特性関係に関する重要な洞察を提供します.
  • この研究は,調節可能な電子機能を持つ先進的な材料の設計への道を開く.