Cyclooctadeca-1,3,5,7,9,11,13,15,17-hexayneorcyclo[18]carbon is a chemical compound, an allotropeofcarbon with molecular formulaC18. The molecule is a ring of eightteen carbon atoms, connected by alternating triple and single bonds; thus, it is a cyclocarbon.
An IBM/Oxford team claimed to synthesize it in solid state in 2019:[3]
Synthesis of cyclocarbon
The reaction was performed using electric currents.[4]
According to these IBM researchers, the synthesized cyclocarbon has alternating triple and single bonds, rather than being made of entirely of double bonds. This supposedly makes this molecule a semiconductor.[4]
References
^George A. Adamson; Charles W. Rees (1996). "Towards the total synthesis of cyclo[n]carbons and the generation of cyclo[6]carbon". J. Chem. Soc., Perkin Trans. 1 (13): 1535–1543. doi:10.1039/P19960001535.
^Cite error: The named reference diederich89 was invoked but never defined (see the help page).
