Intermediates, Reactions and Products of Cyclocarbons

Cyclocarbons, molecular allotropes of carbon in which all carbon atoms are two-fold coordinated, have been synthesized on surface using tip-induced chemistry [1-4], and the formation of larger cyclocarbons by dimerization of precursors was shown [4]. This presentation will focus on products, reactions and intermediates of cyclocarbons, generated by tip-induced chemistry on ultrathin NaCl layers and characterized by STM and AFM with CO-functionalized tips. [1] K. Kaiser et al., Science, 365, 1299-1301 (2019) [2] L. Sun et al., Nature, 623, 972-976 (2023) [3] Y. Gao et al. Nature, 623, 977-981 (2023) [4] F. Albrecht et al. Science, 384, 677-682 (2024)