Tailoring helical ends of π-extended [6]heterohelicenes to control optical, and electrochemical features.

Autor: Kumar, Viksit, Dongre, Sangram D., Venugopal, Geethu, Narayanan, Aswini, Babu, Sukumaran Santhosh
Předmět:
Zdroj: Chemical Communications; 10/25/2024, Vol. 60 Issue 83, p11944-11947, 4p
Abstrakt: The inherent helical chirality and improved π-stacking capabilities endow helicenes with fascinating photophysical characteristics when decorated with lateral π-extensions. Here, we report the synthesis and physicochemical characterization of expanded hetero[6]helicenes fused with thiadiazole and selenadiazole rings at the helical ends. Comparing these heterohelicenes revealed the impact of the heteroatom-embedded aromatic rings on the excited state and redox features. A small structural variation of the terminal rings from thiadiazole to selenadiazole caused a striking change in the heterohelical nanographenes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index