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

UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

9.2K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is...
9.2K
π Molecular Orbitals of 1,3-Butadiene01:24

π Molecular Orbitals of 1,3-Butadiene

12.8K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the...
12.8K
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

2.5K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
2.5K

You might also read

Related Articles

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

Sort by
Same author

Case Report: Comprehensive Imaging and Clinical Outcomes of Chondro-Osseous Respiratory Epithelial Adenomatoid Hamartoma (COREAH) in a Dog.

Animals : an open access journal from MDPI·2025
Same author

Evaluation of Blood-Based Diagnostic Biomarkers for Canine Cognitive Dysfunction Syndrome.

Animals : an open access journal from MDPI·2025
Same author

Case Report: The potential association with polyglandular autoimmune syndrome in a dog following long-term oclacitinib therapy.

Frontiers in veterinary science·2025
Same author

Abnormal Slow Phonon Dynamics Toward Prolonging Excited States Dynamics Enabled by Crystalline-Assembling Donor-Acceptor Molecules.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Dimension-engineered gold heterostructures with transition metal dichalcogenide for efficient overall water splitting.

Journal of colloid and interface science·2025
Same author

Methylation of the JMJD2B epigenetic regulator differentially affects its ability to coactivate the ETV1 and JUN transcription factors.

International journal of biochemistry and molecular biology·2024

Related Experiment Video

Updated: Apr 15, 2026

Genetic Incorporation of Biosynthesized L-dihydroxyphenylalanine DOPA and Its Application to Protein Conjugation
10:24

Genetic Incorporation of Biosynthesized L-dihydroxyphenylalanine DOPA and Its Application to Protein Conjugation

Published on: August 24, 2018

8.5K

D-π-A conjugated molecules for optoelectronic applications.

Tae-Dong Kim1, Kwang-Sup Lee1

  • 1Department of Advanced Materials, Hannam University, Daejeon, 305-811, Republic of Korea.

Macromolecular Rapid Communications
|March 31, 2015
PubMed
Summary

Recent research on donor-π-acceptor (D-π-A) dipolar chromophores highlights their synthesis and applications in optoelectronics. Tuning molecular properties enables advanced device technologies and chip-scale integration.

Keywords:
conjugated moleculesdipolar chromophoresmolecular engineeringnonlinear optical materialsphotovoltaics

More Related Videos

Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer
12:23

Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer

Published on: August 20, 2012

15.1K
Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
09:45

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers

Published on: October 28, 2015

9.0K

Related Experiment Videos

Last Updated: Apr 15, 2026

Genetic Incorporation of Biosynthesized L-dihydroxyphenylalanine DOPA and Its Application to Protein Conjugation
10:24

Genetic Incorporation of Biosynthesized L-dihydroxyphenylalanine DOPA and Its Application to Protein Conjugation

Published on: August 24, 2018

8.5K
Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer
12:23

Real-time Monitoring of Ligand-receptor Interactions with Fluorescence Resonance Energy Transfer

Published on: August 20, 2012

15.1K
Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers
09:45

Photodynamic Therapy with Blended Conducting Polymer/Fullerene Nanoparticle Photosensitizers

Published on: October 28, 2015

9.0K

Area of Science:

  • Organic electronics
  • Materials science
  • Optoelectronics

Background:

  • Dipolar chromophores with donor-π-acceptor (D-π-A) structures are key components in optoelectronic and electronic devices.
  • These molecules exhibit significant π-electron delocalization, influencing their electronic and optical properties.

Purpose of the Study:

  • To provide an overview of recent research on D-π-A dipolar chromophores.
  • To discuss their synthesis and applications, particularly in nonlinear optics and organic photovoltaics.
  • To explore structure/property relationships for optimizing chromophore performance.

Main Methods:

  • Review of recent scientific literature on D-π-A chromophores.
  • Analysis of synthetic strategies for D-π-A chromophores.
  • Discussion of structure-property relationships, including π-electron density, polarizability, and HOMO-LUMO band gap.

Main Results:

  • D-π-A chromophores offer tunable electronic and optical properties.
  • Promising applications identified in nonlinear optical devices and organic photovoltaics.
  • Structure/property relationships provide a framework for molecular design.

Conclusions:

  • D-π-A chromophores are versatile materials for advanced electronic and optoelectronic applications.
  • Tuning molecular design is crucial for maximizing performance in devices.
  • These chromophores hold potential for chip-scale optoelectronics and novel device technologies.