Formation of Nitrogen-Doped Positively Curved Molecules by π-Extension

Org Lett. 2024 May 10;26(18):3901-3905. doi: 10.1021/acs.orglett.4c01087. Epub 2024 Apr 26.

Abstract

Two nitrogen-doped positively curved aromatic molecules bearing doubly fused pentagonal rings were synthesized and characterized. Crystallographic analysis confirms the formation of a bowl-shaped structure, which is induced by the fusion of adjacent pentagons to the rigid aromatic planes. Both compounds demonstrate good photoluminescence. These electron-rich bowl-shaped molecules can associate with C60 to form complexes in 2:1 ratio in toluene with different association constants depending on the molecular dimension of the hosts.