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

Oxidative Cleavage of Alkenes: Ozonolysis01:46

Oxidative Cleavage of Alkenes: Ozonolysis

12.6K
In ozonolysis, ozone is used to cleave a carbon–carbon double bond to form aldehydes and ketones, or carboxylic acids, depending on the work-up.
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
12.6K
Deactivation Processes: Jablonski Diagram01:25

Deactivation Processes: Jablonski Diagram

1.6K
Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...
1.6K
Oxygenic Photosynthesis01:26

Oxygenic Photosynthesis

649
Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
649
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

1.7K
A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
1.7K
Binary Fission01:20

Binary Fission

62.3K
Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical.
62.3K
Binary Fission01:26

Binary Fission

2.1K
Binary fission is the primary mode of asexual reproduction in prokaryotes, such as bacteria. It results in the production of two genetically identical daughter cells. This highly efficient process ensures the rapid propagation of bacterial populations under favorable conditions and involves coordinated cellular and molecular events.DNA Replication and SeparationThe process begins with the replication of the bacterial chromosome. The circular DNA molecule unwinds at a specific origin of...
2.1K

You might also read

Related Articles

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

Sort by
Same author

Wind shear enhances soil moisture influence on rapid thunderstorm growth.

Nature·2026
Same author

Ring Contraction of Cyclooctatetraenes toward Non-Benzenoid Polycyclic Aromatic Hydrocarbons by Au(111)-Catalysis and Bulk Pyrolysis.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025
Same author

Steering Magnetic Coupling in Diradical Nonbenzenoid Nanographenes.

Journal of the American Chemical Society·2025
Same author

Transient absorption and anisotropy studies of a push-pull azo derivative with an isomerization path-selective local minimum in the ground state.

The Journal of chemical physics·2025
Same author

Exceptionally High Two-Photon Absorption Cross Sections in Quinoidal Diazaacene-Bithiophene Derivatives.

Angewandte Chemie (International ed. in English)·2025
Same author

Photochemistry upon Charge Separation in Triphenylamine Derivatives from fs to μs.

The journal of physical chemistry. B·2025
Same journal

Chlorinated VSLSs Surpass HCFCs in CFC-11-Equivalent Emissions for Ozone Layer Depletion in China.

Nature communications·2026
Same journal

Author Correction: Charge transfer in triphenylamine-tetrazine covalent organic frameworks for solar-driven hydrogen peroxide production.

Nature communications·2026
Same journal

Vegetation browning patterns under compound soil and atmospheric dryness in northern permafrost ecosystems.

Nature communications·2026
Same journal

Voltage imaging of CA1 pyramidal cells and SST+ interneurons reveals stability and plasticity mechanisms of spatial firing.

Nature communications·2026
Same journal

Radical-omics reveals the hydrogen-abstraction pathway of isoprene oxidation.

Nature communications·2026
Same journal

Toughening elastomer via sequentially activated multi-pathway energy dissipation.

Nature communications·2026
See all related articles

Related Experiment Video

Updated: Jan 3, 2026

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

6.7K

Oxygen-catalysed sequential singlet fission.

Nikolaus Wollscheid1,2, J Luis Pérez Lustres1,2, Oskar Kefer1,2

  • 1Physikalisch Chemisches Institut, Ruprecht-Karls University, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany.

Nature Communications
|November 16, 2019
PubMed
Summary
This summary is machine-generated.

Singlet fission, a process enhancing solar cell efficiency, can occur sequentially using oxygen as a catalyst. This pathway generates two triplet states consecutively, even under conditions where direct singlet fission is inactive.

More Related Videos

Single-Molecule Förster Resonance Energy Transfer Methods for Real-Time Investigation of the Holliday Junction Resolution by GEN1
11:27

Single-Molecule Förster Resonance Energy Transfer Methods for Real-Time Investigation of the Holliday Junction Resolution by GEN1

Published on: September 18, 2019

9.9K
Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.4K

Related Experiment Videos

Last Updated: Jan 3, 2026

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
10:14

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase

Published on: November 8, 2019

6.7K
Single-Molecule Förster Resonance Energy Transfer Methods for Real-Time Investigation of the Holliday Junction Resolution by GEN1
11:27

Single-Molecule Förster Resonance Energy Transfer Methods for Real-Time Investigation of the Holliday Junction Resolution by GEN1

Published on: September 18, 2019

9.9K
Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

9.4K

Area of Science:

  • Photochemistry
  • Materials Science
  • Physical Chemistry

Background:

  • Singlet fission (SF) converts one singlet exciton into two triplet excitons.
  • SF enhances solar cell efficiency by increasing charge carrier generation.
  • The conventional SF mechanism is typically observed in aggregated or solid-state systems.

Purpose of the Study:

  • To investigate a novel sequential singlet fission mechanism.
  • To demonstrate this mechanism in acene-like molecules in solution.
  • To explore the role of oxygen as a catalyst in singlet fission.

Main Methods:

  • Photophysical studies of acene-like molecules in dilute solution.
  • Spectroscopic analysis to identify intermediates and products.
  • Quantum yield measurements to quantify the contribution of the sequential pathway.

Main Results:

  • A sequential singlet fission mechanism involving triplet oxygen was identified.
  • The process involves energy transfer to triplet oxygen, forming singlet oxygen and a triplet acene.
  • Singlet oxygen then reacts with a ground-state acene to produce a second triplet acene.
  • This sequential pathway contributes up to 40% of the triplet quantum yield.
  • The mechanism is active in dilute solutions under ambient conditions.

Conclusions:

  • A new, oxygen-catalyzed sequential singlet fission pathway has been discovered.
  • This mechanism expands the conditions under which singlet fission can be utilized.
  • The findings offer new strategies for enhancing photophysical processes in molecular systems.