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関連する概念動画

Electron Affinity03:07

Electron Affinity

36.0K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
36.0K
Halogens03:01

Halogens

18.9K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group. 
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π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

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An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.1K
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene01:13

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

6.3K
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
6.3K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

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Dipole Moment of a Molecule
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Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow
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Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

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パルフローロキュバンは 電子を消費する小さな物質です

Marie Pierre Krafft1, Jean G Riess2

  • 1University of Strasbourg, Institut Charles Sadron (CNRS), 67034 Strasbourg, France.

Science (New York, N.Y.)
|August 11, 2022
PubMed
まとめ
この要約は機械生成です。

パーフローリネーションにより キューバ系デリバティブは 構造内に追加の電子を捕獲できます この発見は化学における 電子受容体材料の新しい道を開きます

さらに関連する動画

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
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Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
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関連する実験動画

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Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
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Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia
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科学分野:

  • * 有機化学
  • * 材料科学

背景:

  • * キューバンは構造特性を有する高張力ポリサイクル炭化水素です.
  • * パルフローリネーションは,水素原子をフッ素原子に置き換えて,電子特性を大幅に変化させる.

研究 の 目的:

  • * パルフッ化キューバ産物の電子特性を研究する.
  • * これらの化合物の電子を受け入れる能力を決定する.

主な方法:

  • * 電子構造をモデル化するために計算化学の方法が採用されました.
  • * 密度関数理論 (DFT) の計算を行った.

主要な成果:

  • * 超化により,クバンは内部に余分な電子を宿すことができる.
  • * 結果として得られる構造は,電子受容体の特徴を示している.

結論:

  • 電子受容器の新材料として有望な候補である.
  • * この発見は,安定した電子宿主を必要とする領域での研究を進める可能性がある.