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Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Planar hexaphyrin-like macrocycles turning into bis-BODIPYs with box-shaped structures exhibiting excitonic coupling
Arumugam Kalaiselvan1, Shaina Dhamija2, Chakrapani Aswathi1
1School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram-695551, Maruthamala P.O., Vithura, Kerala, India. gokul@iisertvm.ac.in.
Abstract:
Planar carbazole based hexaphyrin-like macrocycles with bis-coordinating cores and box-shaped cyclic BODIPYs were synthesized. Solution and solid-state structure analysis of the free macrocycles indicates an inversion of two pyrrole rings, resulting in a two-dipyrrin-like environment. The BF2 complexes show large Stokes shifts and exhibit excitonic coupling, fine-tuned by the meso-substituents.
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