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

Structure of Conjugated Dienes01:16

Structure of Conjugated Dienes

6.1K
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...
6.1K
Diels–Alder Reaction Forming Bridged Bicyclic Products: Stereochemistry01:29

Diels–Alder Reaction Forming Bridged Bicyclic Products: Stereochemistry

5.0K
Diels–Alder reactions between cyclic dienes locked in an s-cis configuration and dienophiles yield bridged bicyclic products.
5.0K
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction01:16

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

11.1K
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.
11.1K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

2.9K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.9K
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

2.0K
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...
2.0K
Diels–Alder Reaction: Characteristics of Dienes01:29

Diels–Alder Reaction: Characteristics of Dienes

4.6K
The Diels–Alder reaction brings together a diene and a dienophile to form a six-membered ring. Both components have unique characteristics that influence the rate of the reaction.
Characteristics of the diene
Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable,...
4.6K

You might also read

Related Articles

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

Sort by
Same author

A Diammonium-Based Non-Dion-Jacobson Phase 2D Perovskite With High Durability for Efficient and Stable 2D/3D Perovskite Solar Modules.

Angewandte Chemie (International ed. in English)·2026
Same author

Unraveling the Kinetic Role of Doping in the Oxygen Evolution Reaction on Ce-Mn<sub>3</sub>O<sub>4</sub> Electrocatalysts.

The journal of physical chemistry letters·2026
Same author

Reconfiguration of d-orbital states drives non-radiative energy dissipation in semiconductors.

Materials horizons·2026
Same author

A Theoretical Understanding of both Activity and Stability Promotion of NiFe-Based OER Catalysts via 3d-2p-4f Orbital Hybridization.

The journal of physical chemistry letters·2026
Same author

Spatial imaging of water oxidation on single-particle catalysts.

Nature nanotechnology·2026
Same author

Short-Range Fringing Field-Driven Charge Separation in Mixed-Phase TiO<sub>2</sub> Nanoparticles.

The journal of physical chemistry letters·2026
Same journal

From cyclic diaryl λ<sup>3</sup>-bromanes/chloranes to polyfuntionalized biarylsilanes <i>via</i> aryne σ-bonds.

Chemical science·2026
Same journal

Non-equilibrium formation of the elusive dibridged diboranyl (B<sub>2</sub>H<sub>5</sub>) radical and boranes in low-temperature diborane ices.

Chemical science·2026
Same journal

Visible-light-driven ruthenium-catalyzed hydrogenation of manganese nitride complexes to ammonia under ambient conditions.

Chemical science·2026
Same journal

Quantification of mesopore infiltration in a polymer-grafted metal-organic framework.

Chemical science·2026
Same journal

Enhanced and selective oxygen reduction by iron porphyrin with a biguanide residue in the second coordination sphere.

Chemical science·2026
Same journal

Excited-state orbital angular momentum enables all-optical molecular spin coherence.

Chemical science·2026
See all related articles

Related Experiment Video

Updated: Nov 1, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

8.0K

Isomeric anthracene diimide polymers.

Dandan Tu1,2, Qing Yang1,2, Shuwen Yu1

  • 1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy Zhongshan Road 457 Dalian 116023 China guoxin@dicp.ac.cn canli@dicp.ac.cn.

Chemical Science
|June 24, 2021
PubMed
Summary
This summary is machine-generated.

Researchers developed new anthracene diimide (ADI) polymers, a novel class of n-type semiconductors. These polymers exhibit distinct conformational isomers, paving the way for advanced organic electronics.

More Related Videos

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

8.1K
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.1K

Related Experiment Videos

Last Updated: Nov 1, 2025

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

8.0K
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

8.1K
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

11.1K

Area of Science:

  • Materials Science
  • Organic Electronics
  • Polymer Chemistry

Background:

  • N-type semiconducting polymers are crucial for organic electronics but require electron-deficient building blocks.
  • Anthracene diimide (ADI) is a promising candidate, but its polymers have been synthetically challenging.
  • Existing rylene diimides like naphthalene diimide (NDI) and perylene diimide (PDI) have limitations.

Purpose of the Study:

  • To synthesize novel polymerizable anthracene diimide (ADI) monomers.
  • To construct ADI-based conjugated polymers.
  • To investigate the impact of monomer structure on polymer properties.

Main Methods:

  • Ingenious synthesis of two dibromide ADI monomers with varied symmetrical dibromination.
  • Polymerization of the synthesized ADI monomers.
  • Characterization of polymer backbone conformation, optoelectronic properties, and film-state packing.

Main Results:

  • Successfully synthesized two dibromide ADI monomers and their corresponding polymers.
  • The ADI polymers exhibited different backbone conformations due to varied linking positions.
  • These conformational differences led to distinct optoelectronic properties and packing behaviors.
  • The study presents the first examples of conjugated polymer conformational isomers.

Conclusions:

  • The developed ADI polymers are promising new n-type semiconductors.
  • The ability to tune conformation through monomer design opens new avenues in organic electronics.
  • These findings address the need for advanced electron-deficient units in polymer synthesis.