Related Experiment Video
Updated: Apr 20, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Quadrupolar benzobisthiazole-cored arylamines as highly efficient two-photon absorbing fluorophores
Peter Hrobárik1, Veronika Hrobáriková, Vladislav Semak
1Institute of Chemistry, Technical University of Berlin , Strasse des 17. Juni 135, D-10623 Berlin, Germany.
Abstract:
A computer-aided design of novel D-π-A-π-D styrylamines containing five isomeric benzobisthiazole moieties as the electron-accepting core has revealed the linear centrosymmetric benzo[1,2-d:4,5-d']bisthiazole as the most promising building block for engineering chromophores displaying high two-photon absorption (TPA) in the near-IR region, as also confirmed experimentally. The ease of synthesis of quadrupolar derivatives thereof, combined with extraordinarly high TPA action cross sections (δTPAΦf > 1500 GM), makes these heteroaromatic systems particularly attractive as diagnostic agents in 3D fluorescence imaging.
More Related Videos
09:46Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
08:51Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Related Concept Videos
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Variables Affecting Phosphorescence and Fluorescence
Fluorescence and Phosphorescence: Instrumentation
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Atomic Spectroscopy: Absorption, Emission, and Fluorescence
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...