Fig. 1: Reaction scheme toward the formation of cyclo[12]carbon and cyclo[20]carbon. | Nature Communications

Fig. 1: Reaction scheme toward the formation of cyclo[12]carbon and cyclo[20]carbon.

From: On-surface synthesis and characterization of anti-aromatic cyclo[12]carbon and cyclo[20]carbon

Fig. 1

a Reaction scheme for the formation of C12 (tetragon carbon ring of the precursor colored in blue). b Reaction scheme for the formation of C20 through transformation from hexagon-tetragon (6–4) carbon rings (colored in blue) to pentalene moiety (5–5) (colored in green) and followed by dehalogenation and ring-opening reactions.

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