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Updated: Dec 21, 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
Carbazole-Based Porphyrins: Synthesis, Structure-Photophysical Property Correlations, and Mercury Ion Sensing
Arumugam Kalaiselvan1, Isukapalli Sai Vamsi Krishna1, Anjana Prasad Nambiar1
1Indian Institute of Science Education and Research Thiruvananthapuram, Kerala 695551, India.
Abstract:
The synthesis of a new class of carbazole based macrocycles via [3 + 1] acid-catalyzed condensation is reported. Spectroscopic investigations and computational studies imply that these macrocycles have a large influence on the electronic structure in comparison to previously reported carbazole based macrocycles. Macrocycle 8 bearing a furan ring reversibly binds aqueous Hg2+ with high affinity over other M ions. The limit of detection (LOD) is ca. 100 nM. Hg2+ binding was confirmed via X-ray diffraction analysis.
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