Molecular Architectures with Corannulene Scaffolds

Since the chlorination behavior of 1 has been known for some time, a number 

The synthesis of a plethora of sym-pentakis substituted corannulenes was recently published by Siegel et al. [37]. The authors introduced various substituents, including sp (37), sp (38) and sp hybridized carbon atoms (39) directly connected to 1 as well as some -SR (40) and -OR (41) derivatives [37]. The UV/vis absorption and emission properties of the derivatives were also studied, as well as the inversion barriers of some of the derivatives vide infra). The Stokes shifts were found to be in the range of 130 nm in all derivatives investigated [37]. 

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