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

Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

2.9K
The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
2.9K
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

1.9K
Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
1.9K

You might also read

Related Articles

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

Sort by
Same author

A metabolically reprogrammable nanoplatform potentiates photodynamic immunotherapy through glycolytic blockade.

Biomaterials·2026
Same author

Lysosome self-sorting nanodegraders for hepatic clearance of pathogenic serum mediators.

Nature nanotechnology·2026
Same author

A Dimer for Dinner: The Impact of GHS-R1a Heterodimerization on Feeding Circuits.

Biomolecules·2026
Same author

Network-based analysis of crucial genes for salt tolerance in rice.

Plant physiology·2026
Same author

Phototheranostic Sutures Integrated with NIR-II Emissive Photosensitizers for Postoperative Complication Prevention and Non-invasive Monitoring.

Journal of the American Chemical Society·2026
Same author

Tumor-Specific Delivery of CD28 siRNA via Lyso-PC C-16 Modified Lipid Nanoparticles Overcomes Anti-PD-1 Resistance by Remodeling Tumor Microenvironment.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Related Experiment Video

Updated: Jul 1, 2025

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
12:07

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Published on: April 1, 2013

17.1K

Azulene-Containing Bis(squaraine) Dyes: Design, Synthesis and Aggregation Behaviors.

Yiming Yao1, Xuan Sun2, Zuyuan Zhang2

  • 1State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, P.R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|March 8, 2024
PubMed
Summary

This study synthesized three bis(squaraine) dyes, revealing how molecular structure influences their aggregation behavior in nanoparticles and thin films. Different dyes showed distinct J- and H-aggregate formation, impacting material properties.

Keywords:
aggregateazulenenanoparticlessquarainethermal treatment

More Related Videos

Facile Preparation of 4-Substituted Quinazoline Derivatives
11:51

Facile Preparation of 4-Substituted Quinazoline Derivatives

Published on: February 15, 2016

11.9K
Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
07:44

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes

Published on: July 6, 2016

11.1K

Related Experiment Videos

Last Updated: Jul 1, 2025

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
12:07

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Published on: April 1, 2013

17.1K
Facile Preparation of 4-Substituted Quinazoline Derivatives
11:51

Facile Preparation of 4-Substituted Quinazoline Derivatives

Published on: February 15, 2016

11.9K
Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes
07:44

Synthesis of Wavelength-shifting DNA Hybridization Probes by Using Photostable Cyanine Dyes

Published on: July 6, 2016

11.1K

Area of Science:

  • Organic functional materials
  • Supramolecular chemistry
  • Materials science

Background:

  • Understanding the link between chemical structure, physicochemical properties, and aggregation is crucial for organic functional materials.
  • Bis(squaraine) dyes are promising materials, but their aggregation behavior requires detailed investigation.

Purpose of the Study:

  • To design and synthesize novel bis(squaraine) dyes (BSQ1, BSQ2, BSQ3) with unsymmetrical azulenyl monomers.
  • To investigate the physicochemical properties and aggregation behaviors of these dyes in molecular and aggregate states.
  • To explore the influence of molecular structure and environment on dye aggregation and material performance.

Main Methods:

  • Synthesis of three bis(squaraine) dyes (BSQ1, BSQ2, BSQ3).
  • Characterization of physicochemical properties in solution and solid states.
  • Fabrication of nanoparticles and thin films.
  • Analysis of aggregation modes (J-aggregates, H-aggregates) using spectroscopic techniques.
  • Evaluation of carrier mobility in thin films after thermal annealing.

Main Results:

  • BSQ1 exhibited different assembly behavior compared to BSQ2 and BSQ3.
  • In nanoparticles, BSQ1 formed J-aggregates, while BSQ2 and BSQ3 formed H-aggregates in aqueous media.
  • In thin films, all dyes adopted J-aggregation, but BSQ1 showed significant structural rearrangement and improved carrier mobility upon annealing.
  • Molecular structure and environmental conditions dictate aggregation discrepancies.

Conclusions:

  • The study demonstrates that subtle changes in molecular structure significantly alter the aggregation behavior of bis(squaraine) dyes.
  • Environmental factors play a critical role in directing the formation of specific aggregate types (J- vs. H-aggregates).
  • Findings provide valuable insights for designing squaraine-based materials with tailored properties for specific applications.