6533b871fe1ef96bd12d24ac

RESEARCH PRODUCT

On-Surface Synthesis of Dibenzohexacenohexacene and Dibenzopentaphenoheptaphene

Marco Di GiovannantonioAkimitsu NaritaAkimitsu NaritaRoman FaselPascal RuffieuxAmogh KinikarXiushang XuXiushang XuKlaus MüllenKlaus Müllen

subject

Surface (mathematics)chemistry.chemical_classificationchemistry010405 organic chemistryComputational chemistryPolycyclic aromatic hydrocarbonPolycyclicaromatichydrocarbonOn-surfacesynthesisGeneral Chemistry010402 general chemistry01 natural sciencesNanographene0104 chemical sciences

description

We report the on-surface synthesis and gas-phase theoretical studies of two novel nanographenes, namely, dibenzohexacenohexacene and dibenzopentaphenoheptaphene, using 8,8′-dibromo-5,5′-bibenzo[rst]pentaphene as a precursor. These nanographenes display a combination of armchair and zigzag edges, as shown by noncontact atomic force microscopy (nc-AFM), and their electronic properties are elucidated by density functional theory (DFT) calculations which reveal relatively low HOMO-LUMO energy gaps of about 1.75 eV.

10.1246/bcsj.20200382http://id.nii.ac.jp/1394/00001896/