Synthesis and Crystal Structure of Dimorphic Dibenzo[cde,opq]rubicene.
CHEMISTRY-A EUROPEAN JOURNAL(2019)
Abstract
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.
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Key words
cycloadditions,flash vacuum pyrolysis,polycyclic aromatic hydrocarbons,polymorphism,X-ray diffraction
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