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関連する概念動画

Organic Compounds03:02

Organic Compounds

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...
Exceptions to the Octet Rule02:55

Exceptions to the Octet Rule

Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
Chirality at Nitrogen, Phosphorus, and Sulfur02:30

Chirality at Nitrogen, Phosphorus, and Sulfur

Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
Nomenclature of Aromatic Compounds with Multiple Substituents01:11

Nomenclature of Aromatic Compounds with Multiple Substituents

When more than one substituent is present on the benzene ring, the IUPAC nomenclature depends on the number of substituents present.
For disubstituted benzene derivatives, with two groups attached to the benzene ring, three constitutional isomers are possible. For example, consider dimethyl benzene, often called xylene, where the second methyl group can be substituted at the second, third, or fourth carbon. The relative position of the substituents is represented by prefixes ortho, meta, or...

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関連する実験動画

Updated: Jul 10, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

オクタフェニルビフェニレンとドデカフェニルトリプチセンは

Jun Lu1, Jiajia Zhang, Xianfeng Shen

  • 1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA.

Journal of the American Chemical Society
|July 4, 2002
PubMed
まとめ
この要約は機械生成です。

研究者はオクタフェニルビフェニレンと2つの新しいテトラフェニルベンジンジマーを合成し,その中には非常に混雑したドデカフェニルトリプチセンが含まれています. X線結晶学では,ドデカフェニルトリプチセンがベンゼン溶酸塩酸とチャネル構造を形成するユニークな構造を明らかにしました.

さらに関連する動画

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)
06:34

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)

Published on: June 20, 2014

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
09:45

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Published on: April 27, 2017

関連する実験動画

Last Updated: Jul 10, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)
06:34

Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)

Published on: June 20, 2014

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
09:45

Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

Published on: April 27, 2017

科学分野:

  • 有機化学 オーガニック・ケミストリー
  • 材料科学 材料科学とは
  • クリスタログラフィーです.

背景:

  • テトラフェニルベンジンは,ユニークな反応性を持つストレートアルキンです.
  • 高度に置換されたポリサイクル芳香炭化水素 (PAH) の合成は,重大な課題を提示しています.
  • ベンジン二重体の構造的多様性を理解することは,新しい化学空間を探求する上で極めて重要です.

研究 の 目的:

  • テトラフェニルベンジンの新型ダイマーを合成し,特徴づけること.
  • 非常に混雑したポリサイクル芳香炭化水素の構造的性質を調査する.
  • 新しいPAH構造を持つインクルージョン化合物の形成を調査する.

主な方法:

  • 3,4,5,6-テトラフェニルアントラニル酸のディアゾ化によりオクタフェニルビフェニレンが形成される.
  • 1,2,3,4,5,6,7,8-オクタフェニルアントラセンの合成. 商業的な前駆体から.
  • テトラフェニルベンジンとオクタフェニルアントラセンの反応により,ドデカフェニルトリプチセンが得られます.
  • 合成された化合物およびソルバートの構造的決定のためのX線結晶学.

主要な成果:

  • テトラフェニルベンジンの期待されるダイマーであるオクタフェニルビフェニレンは,低収量で合成されました.
  • 1,2,3,8,9,10-hexaphenyldibenzo[fg,op]naphthaceneという異常なダイマー,サドル状のPAHが特定され,構造的に特徴づけられました.
  • 最も混雑したトリプチーセンの派生体である1,2,3,4,5,6,7,8,13,14,15,16-ドデカフェニルトリプチーセンが合成されました.
  • ドデカフェニルトリプチセンのノンベンゼン溶液体のX線構造は,ユニット細胞で50%以上のベンゼンを含むチャネルを含む構造を明らかにしました.

結論:

  • テトラフェニルベンジンジームの合成は,多様な反応経路を示しています.
  • 新型PAHの構造的特徴は,分子構造に関する知識を拡張します.
  • インクルージョン化合物の形成は,複雑な有機構造を持つ宿主-ゲスト化学の可能性を強調しています.