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

Predicting Molecular Geometry02:27

Predicting Molecular Geometry

46.1K
VSEPR Theory for Determination of Electron Pair Geometries
46.1K
Molecular Models02:00

Molecular Models

43.9K
Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
43.9K
Molecular Orbital Theory II03:51

Molecular Orbital Theory II

27.7K
Molecular Orbital Energy Diagrams
27.7K
Molecular Orbital Theory I02:35

Molecular Orbital Theory I

47.8K
Overview of Molecular Orbital Theory
47.8K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.3K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.3K
Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy03:07

Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy

30.0K
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws.
30.0K

You might also read

Related Articles

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

Sort by
Same author

Predictive Registry Optimization of Molecular Adsorbates on Solid Surfaces.

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

Ultrafast Near-Field Dynamics in Silver Nanowires Driven by Few-Cycle Short-Wave Infrared Pulses.

ACS photonics·2026
Same author

Electrical Control of Intersubband Transitions in Few-Layer WSe<sub>2</sub> Multivalley Quantum Wells Probed by Electronic Raman Scattering.

ACS nano·2026
Same author

Furan-Protected 4-Maleimidomethyl Styrene for Reversible Crosslinked Polymers.

Macromolecular rapid communications·2025
Same author

From π-Conjugated Rods to Shape-Persistent Rings, Wheels, and Ladders: The Question of Rigidity.

Accounts of chemical research·2024
Same author

Size-Increased All-Phenylene Molecular Spoked Wheels - A Combined Theoretical and Experimental Approach.

Angewandte Chemie (International ed. in English)·2024

Related Experiment Video

Updated: Feb 12, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

9.0K

Molecular excitonic seesaws.

Philipp Wilhelm1, Jakob Schedlbauer1, Florian Hinderer2

  • 1Institut für Experimentelle und Angewandte Physik, Universität Regensburg, 93053 Regensburg, Germany.

Proceedings of the National Academy of Sciences of the United States of America
|April 4, 2018
PubMed
Summary
This summary is machine-generated.

Molecular symmetry breaking is a nondeterministic process controlling light harvesting. This study reveals excitation energy transfer in a designed molecule switches pathways on a submillisecond timescale, impacting energy transfer efficiency.

Keywords:
bodipysexcited-state molecular dynamicsexcitonicslight harvestingsingle-molecule spectroscopy

More Related Videos

Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K
MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent
06:54

MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent

Published on: September 3, 2013

11.8K

Related Experiment Videos

Last Updated: Feb 12, 2026

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
08:04

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

9.0K
Molecular Evolution of the Tre Recombinase
12:02

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

10.1K
MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent
06:54

MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent

Published on: September 3, 2013

11.8K

Area of Science:

  • Photochemistry
  • Molecular Biophysics
  • Supramolecular Chemistry

Background:

  • Molecular symmetry breaking is crucial for light harvesting efficiency in molecular aggregates.
  • Photoexcitation induces self-localization of molecular excitations due to strong coupling with vibrations, a nondeterministic process.
  • Probing symmetry breaking typically uses polarization-resolved fluorescence, especially at the single-molecule level.

Purpose of the Study:

  • To explore molecular symmetry breaking by designing and investigating a large, asymmetric acceptor-donor-acceptor (A1-D-A2) complex.
  • To study the energy transfer dynamics between a π-conjugated oligomer donor and two distinct boron-dipyrromethene (bodipy) dye acceptors.
  • To demonstrate the link between exciton localization and energy transfer selectivity.

Main Methods:

  • Design and synthesis of a 10 nm asymmetric A1-D-A2 complex.
  • Utilizing fluorescence correlation spectroscopy (FCS) to probe energy transfer pathways.
  • Employing polarization-resolved fluorescence to investigate exciton localization and endcap emission.

Main Results:

  • FCS revealed nondeterministic switching between energy transfer pathways to the two bodipy acceptors on a submillisecond timescale.
  • The study demonstrates that excitation energy transfer and light harvesting are fundamentally nondeterministic.
  • Molecular bending in triads increased exciton localization, leading to bichromophoric fluorescence photon statistics.

Conclusions:

  • Excitation energy transfer and light harvesting are inherently nondeterministic processes.
  • These processes can be significantly influenced by external stimuli.
  • Exciton localization within π-systems directly correlates with energy transfer selectivity to end-capped acceptors.