On-surface chemistry is used to assemble polymeric wires [1,2], nanoribbons  as well as 2d- molecular networks . Pulling of wires and ribbons is used to investigate the lateral motion as well the detachment of individual sub-units. The motion of graphene nanoribbons shows evidence of superlubricity. Sequential bending and twisting around single C-C bonds is observed in the case of poly- pyrenylene chains. 2d-molecular networks have promising electrical and magnetic properties as indicated by the formation of flat bands. In the case of the assembly of tetrabromo-1,3,6,8 tetraazapyrene (TBTAP) on Pb(111), neighboring rows of radicals and neutral molecules are observed . Discharging of molecules is found by the application of positive voltages, where the formation of Coulomb blockade rings is observed. In contrast to a simple superposition of rings as expected for non- interacting quantum dots, their fusion is observed, which indicates a cascade discharge and thus a manifestation of electron correlation in the supramolecular assembly. Charged molecules host spin 1⁄2 electrons, which is confirmed by high resolution dI/dV spectroscopy, where Yu-Shiba-Rusinov (YSR) states in the superconductive gap are observed. Low energy modes are observed at the rim of molecular islands, which indicates the existence of topological edge states.
 R. Pawlak, J.G. Vilhena, P. D’Astolfo, X. Liu, G. Prampolini, T. Meier, Th. Glatzel, J.A. Lemkul, R. Häner, S. Decurtins, A. Baratoff, R. Perez, S.-X. Liu, E. Meyer, Nano Lett. , (20), (2020), 652-657.
 J. G. Vilhena, Remy Pawlak, P. D’Astolfo, X. Liu, E. Gnecco , M. Kisiel, T. Glatzel, R. Perez, R. Häner, S. Decurtins, A. Baratoff, G. Prampolini , S.-X. Liu and E. Meyer, Phys. Rev. Lett. 128, 216102 (2022)
 R. Pawlak, X. Liu, S. Ninova, P. D’Astolfo, C. Drechsel, S. Sangtarash, R. Häner, S. Decurtins, H. Sadeghi, C. J. Lambert, U. Aschauer, S-X. Liu, E. Meyer, Journal of the American Chemical Society, 142, (29), (2020), 12568-12573.
 R. Pawlak, X. Liu, S. Ninova, P. DAstolfo, C. Drechsel, J.-C. Liu, R. Häner, S. Decurtins, U. Aschauer, S.-X. Liu, and E. Meyer, Angew. Chem. Int. Ed., 60, (15), (2021), 8370-8375
 R. Pawlak et al. to be published (2023).
Séminaire interne: Brigino Ralahy, IMMF