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

Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

3.2K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.2K
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

2.5K
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
2.5K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.0K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists...
2.0K

You might also read

Related Articles

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

Sort by
Same author

Potent and Receptor-Selective Germination Inhibitor for <i>Striga hermonthica</i>.

Precision chemistry·2026
Same author

<i>L</i>-region-selective annulative π-extension through dearomative activation of polycyclic aromatic hydrocarbons.

Chemical science·2026
Same author

New Metabolites of Fairy Chemicals in Tea and Coffee: Methylated AHX and AOH.

Journal of agricultural and food chemistry·2025
Same author

Synthesis, Structures, and Properties of Polybenzo[<i>n</i>]spirenes with Carbon-Based Polyspiroconjugation.

Organic letters·2025
Same author

Synthesis of Chrysene-Based Nanographenes by a Successive APEX Reaction.

Precision chemistry·2025
Same author

Making non-emissive [6]cycloparaphenylene fluorescent by simple multiple methyl substitution.

Chemical science·2025

Related Experiment Video

Updated: May 31, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.6K

Rapid access to functionalized nanographenes through a palladium-catalyzed multi-annulation sequence.

Takehisa Maekawa1, Kenichiro Itami1,2,3

  • 1Institute of Chemistry, Academia Sinica 128 Academia Road, Section 2, Nankang Taipei 115201 Taiwan tmaekawa@gate.sinica.edu.tw.

Chemical Science
|January 23, 2025
PubMed
Summary

Researchers developed a new one-pot synthesis for functionalized small nanographenes using palladium catalysis. This method efficiently creates novel carbon materials with tunable properties for diverse applications.

More Related Videos

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
09:12

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

9.1K
Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
09:35

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units

Published on: September 18, 2016

11.4K

Related Experiment Videos

Last Updated: May 31, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.6K
Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering
09:12

Functionalization of Single-walled Carbon Nanotubes with Thermo-reversible Block Copolymers and Characterization by Small-angle Neutron Scattering

Published on: June 1, 2016

9.1K
Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
09:35

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units

Published on: September 18, 2016

11.4K

Area of Science:

  • Materials Science
  • Organic Chemistry
  • Nanotechnology

Background:

  • Nanographenes and polycyclic aromatic hydrocarbons offer unique physical properties with applications in electronics, catalysis, and biomedicine.
  • Developing functionalized analogs is crucial for advancing these applications.
  • Current methods for synthesizing functionalized nanographenes are often inefficient or limited.

Purpose of the Study:

  • To establish an efficient and reliable method for synthesizing functionalized small nanographenes.
  • To enable the incorporation of various polar functional groups into nanographene structures.
  • To provide a versatile platform for creating novel carbon-based materials.

Main Methods:

  • A one-pot, multi-annulation sequence catalyzed by a single palladium catalyst.
  • Utilized readily available iodobiaryl and diarylacetylene derivatives as starting materials.
  • Demonstrated the synthesis of small nanographenes with hydroxy, amino, and pyridinic nitrogen functionalities.

Main Results:

  • Successfully synthesized functionalized small nanographenes in a single step.
  • Incorporated polar functional groups that are typically difficult to introduce.
  • Showcased the ability to further derivatize these functional groups.

Conclusions:

  • The developed palladium-catalyzed method provides facile access to functionalized small nanographenes.
  • The incorporated functional groups allow for modulation of solubility, optoelectronic, photochromic, and vapochromic properties.
  • This approach serves as a valuable platform for designing novel carbon-based materials with tailored characteristics.