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関連する概念動画

Introduction to Functional Groups02:08

Introduction to Functional Groups


Functional groups are group of atoms with specific chemical properties that occur within organic molecules and sometimes denoted as “R”. Functional groups are found along the carbon backbone of macromolecules can form chains or rings of carbon atoms. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of common functional groups
The table below summarizes some of the major functional groups in organic chemistry. (The...
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
Phosphodiester Linkages01:01

Phosphodiester Linkages

Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
Functional Groups02:45

Functional Groups

Functional groups are a group of atoms with characteristic properties, which when linked to the carbon skeleton of a molecule, alter the properties of that molecule. For example, the presence of certain functional groups on a molecule will make them hydrophilic, whereas others will make them hydrophobic. These functional groups are an indispensable part of organic chemistry and important components of biological molecules, such as carbohydrates, proteins, lipids, and nucleic acids. Each...
Overview of Advanced Functional Groups02:22

Overview of Advanced Functional Groups


Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.
Radical Chain-Growth Polymerization: Chain Branching01:17

Radical Chain-Growth Polymerization: Chain Branching

The skeletal structure of polymers synthesized via radical polymerization is always branched. For example, the polymerization of ethylene by radical polymerization results in a low-density grade of polyethylene with a heavily branched skeletal structure. Here, the radical site abstracts hydrogen from the growing chain, and the radical site shifts from the end (a primary carbon center) to anywhere within the growing chain (a secondary carbon center). Consequently, the part of the chain from the...

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関連する実験動画

Updated: May 31, 2026

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

ロタキサン形成のための水素結合テンプレートとしてのリン基基機能群.

Rehan Ahmed1, Andrea Altieri, Daniel M D'Souza

  • 1School of Chemistry, EaStCHEM, University of St. Andrews, St. Andrews, Fife KY16 9ST, United Kingdom.

Journal of the American Chemical Society
|July 2, 2011
PubMed
まとめ

研究者らは,を含む機能群を用いて [2]rotaxanes.を作りました. 水素結合によって形成されたこれらの新しい構造は,高度な分子シャトルと触媒の開発の可能性を示しています.

さらに関連する動画

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

関連する実験動画

Last Updated: May 31, 2026

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

科学分野:

  • 超分子化学 超分子化学
  • 有機化学 オーガニック・ケミストリー
  • マテリアルサイエンス 材料科学

背景:

  • ロタキサンは,ナノテクノロジーにおける潜在的な応用を持つ,機械的に相互に絡み合っている分子です.
  • 水素結合は,自己組み立てを誘導するための重要な非共性相互作用である.
  • を含む機能群は,ユニークな電子的および構造的特性を有しています.

研究 の 目的:

  • ロタキサン合成における水素結合受容体としてのリン含有機能群の利用を調査する.
  • フォスフィナミド,チオフォスフィナミド,セレノフォスフィナミド群によって導かれるスレッド状軸の周りのマクロサイクルの自己組み立てを調査する.
  • X線結晶学を用いて,その結果生じるロタキサン構造を特徴づける.

主な方法:

  • フォスフィナミド,チオ,セレノフォスフィナミドを水素結合受容体として使用した[2]ロタキサンの合成.
  • 糸上のアミド群とリン基基の機能群によって導かれた組立.
  • X線結晶学による構造的特徴化.

主要な成果:

  • ロタキサン [2] の合成に成功し,60% の収穫率に達した.
  • 新しいアミドとフォスフィナミドの相互作用を含む,複数の相互構成要素の水素結合の識別.
  • フォスフィン酸化物-フォスフィナミドロタキサンにおける水媒介の独特の水素結合ネットワークの観察.

結論:

  • 基機能群は,ロタキサン組成のための効果的な水素結合受容体である.
  • ロタキサンの構造的多様性は,異なるリン酸機能群によって調整できます.
  • これらのロタキサンは,分子シャトルや触媒の応用が有望である.