Acene

molecular formula

optoelectronic applications and are actively researched in chemistry and electrical engineering. Pentacene has been incorporated into organic field-effect transistors, reaching charge carrier

dimerises upon isolation. Heptacene (and larger acenes) is very reactive and has only been isolated in a matrix. However, bis(trialkylsilylethynylated) versions of heptacene have been isolated as crystalline solids.^[3]

HOMO-LUMO gap reported for any acene,^[8] an observation in violation of Kasha's rule. Subsequent work by others on different derivatives included crystal structures, with no such violations.^[9] The on-surface synthesis and characterization of unsubstituted, parent nonacene (n=9)^[10] and decacene (n=10)^[11] have been reported. In 2020, scientists reported about the creation of dodecacene (n=12)^[12] for the first time. Four years later, in the beginning of 2024, Ruan et al. succeeded in synthesizing unsubstitued tridecacene (n=13) on a (111)-gold surface. The acene was characterized by STM- and STS-measurements. ^[13]