The development of corannulene-based blue emitters†
James Mack,Philip Vogel,Derek Jones,Necati Kaval,Art Sutton
Organic & Biomolecular Chemistry Pub Date : 06/27/2007 00:00:00 , DOI:10.1039/B705621D
Abstract

Novel blue emitters were synthesized based on the fullerene fragment corannulene. 1,2- bis(corannulenylethynyl)benzene and 1,4-bis(corannulenylethynyl)benzene were designed, synthesized, and shown to exhibit significant red shifts in their absorption spectra as compared to that of the parent corannulene. Photoluminescence studies show both 1,2- bis(corannulenylethynyl)benzene and 1,4- bis(corannulenylethynyl)benzene gives enhanced blue luminescence compared to the parent corannulene structure. 1,4-bis(corannulenylethynyl)benzene was observed to give intense blue luminescence when excited at 400 nm. DFT and TD-DFT calculations were performed and shown to be consistent with the observed experimental results.

Graphical abstract: The development of corannulene-based blue emitters