“…Predicted for the first time by Balaban,12 BPC is characterized, theoretically, by an intrinsic band gap and bands with delocalized frontier orbitals. 13,14 Biphenylene sheets, originating from biphenylene dimers, 15 have also been hypothesized and their onedimensional derivatives, like ribbons and tubes, have been theoretically investigated. 16 The most reliable and promising approach to grow this kind of covalently bonded carbon materials is a bottom-up procedure, exploiting the surface-confined self-assembly of functionalized molecular building blocks and their interaction with appropriate surfaces (generally coinage metal substrates).…”