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

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide02:44

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

11.2K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
11.2K
Structure of Conjugated Dienes01:16

Structure of Conjugated Dienes

5.6K
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...
5.6K
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

8.3K
The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.
8.3K
Diels–Alder Reaction Forming Cyclic Products: Stereochemistry01:28

Diels–Alder Reaction Forming Cyclic Products: Stereochemistry

3.1K
The Diels–Alder reaction is one of the robust methods for synthesizing unsaturated six-membered rings. The reaction involves a concerted cyclic movement of six π electrons: four π electrons from the diene and two π electrons from the dienophile.
3.1K
Stability of Conjugated Dienes01:28

Stability of Conjugated Dienes

3.4K
Introduction
A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.
3.4K
Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride01:26

Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride

1.5K
Radical substitution reactions can be used to remove functional groups from molecules. The hydrogenolysis of alkyl halides is one such reaction, where the weak Sn–H bond in tributyltin hydride reacts with alkyl halides to form alkanes. Here, the reagent Bu3SnH yields tributyltin halide as a byproduct.
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation...
1.5K

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

Regio- and Enantioselective Alkoxycarbonylation of Unactivated Terminal Alkenes under Palladium-Bromide-Monophosphine Catalysis.

Journal of the American Chemical Society·2026
Same author

Structural properties, polymorphism, and multiscale disorder unravel energy transport limitations in perylene diimide semiconductors.

Science advances·2026
Same author

Lanthanide-doped nanocrystals enable organic room-temperature phosphorescence in solution through direct triplet excitation.

Nature chemistry·2026
Same author

Tuning Quintet Multiexciton Sublevel Selection via Bridge Resonance in Singlet Fission.

The journal of physical chemistry letters·2026
Same author

Nonuniform Chemical Passivation Dynamics in Monolayer MoS<sub>2</sub> from Real-Time Photoluminescence Imaging.

The journal of physical chemistry letters·2026
Same author

Coulombic control of charge transfer in radicals with quartet recycling luminescence.

Nature communications·2026
Same journal

Carbonylative Aminative Suzuki-Miyaura Coupling: Pd-Catalyzed Synthesis of Amides from Vinyl/Aryl Halides and Boronic Acids.

Journal of the American Chemical Society·2026
Same journal

Divergent Asymmetric Synthesis of Glutinosasins A-E.

Journal of the American Chemical Society·2026
Same journal

Ultrastrong Polyketone Hot-Melt Adhesives Enabled by Ni-Catalyzed Carbonylative Polymerization.

Journal of the American Chemical Society·2026
Same journal

Programmable Anomalous Photovoltaics Enabled by Light-Electric Dual-Field Control.

Journal of the American Chemical Society·2026
Same journal

Biomimetic Redox-Mediated Proton Relay in Nanoreactors for Photocatalysis.

Journal of the American Chemical Society·2026
Same journal

The Sulfur Monoxide-Water Complex.

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: May 6, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.9K

溶液処理可能なディチエノヘクサトリエンの定量単片分裂

Kealan J Fallon1,2, Nipun Sawhney2, Daniel T W Toolan3

  • 1Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K.

Journal of the American Chemical Society
|December 28, 2022
PubMed
まとめ
この要約は機械生成です。

シングレット分裂 (SF) 材料は,太陽電池の効率を高めるために不可欠です. この研究は,シリコン光伏 (PV) の効率的なSFを可能にする新しいディチオネキサトリエン (DTH) 材料を導入します.

さらに関連する動画

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K
Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay
06:17

Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay

Published on: February 28, 2025

650

関連する実験動画

Last Updated: May 6, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.9K
Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

8.0K
Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay
06:17

Covalent Fragment Screening Using the Quantitative Irreversible Tethering Assay

Published on: February 28, 2025

650

科学分野:

  • 材料科学
  • 太陽光発電
  • オーガニック電子

背景:

  • シングレット分裂 (SF) は,熱化の損失を克服することによって太陽電池の効率を高めるプロセスです.
  • SFに適した材料,特にシリコン光伏 (>1.1 eV) と互換性のある材料の開発は,依然として大きな課題です.
  • 現存するSF材料は限られており,太陽エネルギー変換における実用的な応用を妨げています.

研究 の 目的:

  • 短鎖ポリエネ,ディチエノヘクサトリエネ (DTH) の一連の材料を単片分裂特性のために調査する.
  • シリコン光伏に適したトリプルエネルギーレベルを持つ溶液処理可能なSF材料を開発する.
  • 高いトリプル出力と効率的なエクシトン生成を PV性能の向上のために達成する.

主な方法:

  • 電子特性を合わせたディチオヘクサトリエン (DTH) デリバティブの合成
  • 高結晶性を達成するために,スピン鋳造技術を使用して薄膜の製造.
  • シングレット分裂のダイナミクスとトリプルレジデントを特徴付ける超高速のスペクトル測定.

主要な成果:

  • DTH材料は超高速のシングレット分裂で,192%までのほぼ完璧なトリプレート産出率を示しています.
  • これらの材料は,トリプルエネルギーレベルが1.1 eV以上であり,シリコン光伏カップリングに適しています.
  • 溶解性の高いDTH化合物は,結晶性の高い薄膜に加工することができます.

結論:

  • DTH材料は溶液処理可能なシングレット核分裂技術の突破口です.
  • これらの材料は量的なトリプレート形成とシリコンのPV統合に適したエネルギーレベルを提供します.
  • 開発されたDTH化合物は 次世代の高効率の太陽電池にとって有望です