Synthesis and Crystal Structure of Dimorphic Dibenzo[cde,opq]rubicene.
Joghee R SureshGlenn WhitenerGabriele TheumerDirk J BröcherIngmar BauerWerner MassaHans-Joachim KnölkerPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2019)
Dibenzo[cde,opq]rubicene has been synthesized by an eight-step reaction sequence including an iron-mediated [2+2+1] cycloaddition and a flash vacuum pyrolysis as key steps. Two crystal modifications of the S-shaped, planar polycyclic aromatic hydrocarbon have been obtained and characterized by X-ray diffractometry.