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

7.0K
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 the extent...
7.0K
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
Colors and Magnetism03:02

Colors and Magnetism

11.7K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.7K
UV–Vis Spectroscopy: Woodward–Fieser Rules01:29

UV–Vis Spectroscopy: Woodward–Fieser Rules

24.2K
UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π → π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given...
24.2K

You might also read

Related Articles

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

Sort by
Same author

Near-Infrared Dioxaborine-Containing Polymethines for Light-Activated Anticancer Activity.

ACS applied bio materials·2026
Same author

1,3,2-Dioxaborine-based mero-polyanionic dyes: high-extinction NIR-absorbing polymethines.

RSC advances·2026
Same author

1,7-Dithienyl BODIPYs: do thienyls outperform phenyls?

Organic & biomolecular chemistry·2025
Same author

Asymmetric Ketocyanine Dyes with an Extended Polymethine Chain.

ChemistryOpen·2025
Same author

Merocyanines: Electronic Structure and Spectroscopy in Solutions, Solid State, and Gas Phase.

Chemical reviews·2024
Same author

Trianionic 1,3,2-Dioxaborine-Containing Polymethines: Bright Near-Infrared Fluorophores.

Chemistry (Weinheim an der Bergstrasse, Germany)·2022

Related Experiment Video

Updated: Jun 28, 2025

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
11:26

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

12.6K

Tetraanionic Oligo-Dioxaborines: Strongly Absorbing Near-Infrared Dyes.

Vladyslav Polishchuk1, Andrii Kulinich1, Mykola Shandura1

  • 1Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Akademika Kukharya Street 5, 02094, Kyiv, Ukraine.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|April 16, 2024
PubMed
Summary

New tetraanionic polymethine dyes featuring 1,3,2-dioxaborine rings were synthesized. These novel compounds exhibit exceptionally strong near-infrared absorption and bright fluorescence, making them highly promising for various applications.

Keywords:
NIR dyesabsorptiondioxaborinefluorophorespolymethines

More Related Videos

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

8.9K
Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
09:46

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

Published on: August 19, 2013

15.6K

Related Experiment Videos

Last Updated: Jun 28, 2025

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
11:26

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

12.6K
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

8.9K
Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
09:46

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

Published on: August 19, 2013

15.6K

Area of Science:

  • Organic Chemistry
  • Materials Science
  • Spectroscopy

Background:

  • Polymethine dyes are crucial in various optical and electronic applications.
  • Developing novel dyes with enhanced photophysical properties is an ongoing research area.
  • Near-infrared (NIR) absorbing and fluorescent materials are of significant interest.

Purpose of the Study:

  • To synthesize novel tetraanionic polymethine dyes incorporating 1,3,2-dioxaborine rings.
  • To investigate the photophysical properties, specifically NIR absorption and fluorescence.
  • To analyze the electronic structure and compare it with related anionic oligomers.

Main Methods:

  • Synthesis of tetraanionic polymethine dyes with specific structural features.
  • Spectroscopic analysis to determine absorption and fluorescence characteristics.
  • Quantum chemical calculations for electronic structure analysis.

Main Results:

  • Successful synthesis of tetraanionic polymethine dyes with 1,3,2-dioxaborine units.
  • Observed strong near-infrared absorption with high molar absorption coefficients (up to 564,000 M⁻¹cm⁻¹).
  • Demonstrated bright NIR fluorescence with quantum yields up to 0.13.

Conclusions:

  • The synthesized dyes represent a novel class of oligomeric polymethines.
  • These compounds exhibit outstanding NIR absorption and fluorescence properties.
  • The study provides insights into the structure-property relationships of these novel dye systems.