Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Stability of Conjugated Dienes01:28

Stability of Conjugated Dienes

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.
Cycloaddition Reactions: Overview01:16

Cycloaddition Reactions: Overview

Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
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...
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

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

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.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Enhanced visible-light photoredox catalysis with rubicene-embedded polycyclic aromatic hydrocarbons (PAHs).

Chemical science·2026
Same author

High performance organic solar cell enabled by manipulating the exciton dissociation and charge transfer via dielectric engineering.

Nature communications·2026
Same author

Between gods and green: ritual plant use of traditional festivals in the Chaoshan region, China.

Journal of ethnobiology and ethnomedicine·2026
Same author

MIRAGE: a multimodal deep learning framework for interpretable risk assessment of high myopia from genetic and retinal imaging data.

Human molecular genetics·2026
Same author

Recent Progress of Solid Additives in Organic Solar Cells.

Polymer science & technology (Washington, D.C.)·2026
Same author

Aggregation-induced emission luminogen in ternary organic bulk-heterojunction for efficient perovskite-organic tandem solar cells.

Nature communications·2026

Related Experiment Video

Updated: May 13, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Highly Stable Two-Dimensional Conjugated Polymers Enabled by Scalable and Irreversible C─C Cross-Coupling Reactions.

Bowei Ma1, Wenbin Xie1, Yincheng Zhang1

  • 1College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|May 12, 2026
PubMed
Summary

Researchers developed a fast, scalable method for synthesizing highly stable two-dimensional conjugated polymers (2DCPs) using C─C cross-coupling. These robust 2DCPs show promise as photocatalysts and in resilient optoelectronic devices.

Keywords:
conjugated polymerscross‐coupling reactionsoptoelectronic synapsephotocatalyststwo dimensional materials

More Related Videos

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

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

Related Experiment Videos

Last Updated: May 13, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

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

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Organic Synthesis

Background:

  • Two-dimensional conjugated polymers (2DCPs) offer high surface area and tunable properties.
  • Scalable synthesis of stable 2DCPs is a significant challenge.

Purpose of the Study:

  • To develop a fast and scalable method for synthesizing highly stable 2DCPs.
  • To investigate the potential applications of these stable 2DCPs.

Main Methods:

  • Irreversible C─C cross-coupling reactions.
  • Mechanistic investigations using precise cross-coupling and π-π aggregate templates.
  • Fabrication of self-standing 2DCP films.

Main Results:

  • Achieved fast and scalable synthesis of highly stable 2DCPs.
  • Demonstrated 2DCPs as robust photocatalysts for C‒N cross-coupling and oxidative hydroxylation.
  • Showcased a 2DCP film's outstanding performance in optoelectronic synapses with high resilience.

Conclusions:

  • Established a novel approach for synthesizing stable 2DCPs.
  • Highlighted the potential of stable 2DCPs for applications under extreme conditions.
  • Paved the way for advanced materials in catalysis and electronics.