Related Experiment Video
Updated: Jul 30, 2025
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
Synthesis, Characterization and Evaluating Photochemical Properties of Porphyrin-substituted Azobenzene Structure
Guler Yagiz Erdemir1, Derya Topkaya2
1Department of Chemistry, Faculty of Science, Gazi University, Ankara, 06560, Turkey.
Abstract:
Herein a new azobenzene-substituted porphyrin molecule was synthesized, characterized and its optoelectronic properties were investigated by combining the high optoelectronic properties of porphyrin with the photosensitive properties of azobenzene. The carboxylic acid of azobenzene was covalently connected to -OH group of the porphyrin ring by using Steglich esterification. Molecular structure of the obtained azobenzene-porphyrin (8), was elucidated, by FTIR, 1 H and 13 C NMR and HRMS. After structural characterization absorption and emission, characteristics were determined in solvents that have different. And also, optical and fluorescence behaviors in the range of different acid pH with trans-cis photoisomerization behaviors were investigated in aqueous-THF solution in acid media.
More Related Videos
Related Concept Videos
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Electrophilic Aromatic Substitution: Chlorination and Bromination of Benzene
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Thermal and Photochemical Electrocyclic Reactions: Overview

![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)