Abstract
Recently, on-surface synthesis has aroused great attentions due to its fascinating potential in constructing novel nanostructures. In particular, C-C coupling between reactants by activation of pre-defined C-X groups (X stands for hydrogen or halogens) followed by formation of new carbon-carbon bonds, represents one of the great choices for controllable fabrication of novel carbon nanostructures and low-dimensional carbon nanomaterials.
Here, from the interplay of high-resolution scanning tunneling microscopy (STM) real-space imaging / manipulation and density functional theory (DFT) calculations, we show a systematic study of on-surface synthesis of novel carbon nanostructures via C-C coupling, which involves dehydrogenation / dehalogenation of different hybridized carbon species including alkynyl (sp1), alkenyl (sp2), aryl (sp2), alkyl (sp3) functional groups.
Keywords: scanning tunneling microscopy, density functional theory, on-surface chemistry, dehydrogenative / dehalogenative C-C coupling
