The covalent fusion of a graphene nanoribbon with porphyrins through a surface-assisted synthesis, the characterization of the atomically precise structure of the hybrid by bond-resolved scanning tunneling microscopy and noncontact atomic force microscopy, and the investigation of its electronic properties by scanning tunneling spectroscopy in combination with DFT calculations was a collaboration project between Empa Dübendorf, Universidad Autónoma de Madrid, and DCB.

Reference:

• L. M. Mateo, Q. Sun, S.-X. Liu, J. J. Bergkamp, K. Eimre, C. A. Pignedoli, P. Ruffieux, S. Decurtins, G. Bottari, R. Fasel, T. Torres;
  "On-Surface Synthesis and Characterization of Triply Fused Porphyrin-Graphene Nanoribbon Hybrids"
  Angew. Chem. Int. Ed., 2020, 59(3), 1334-1339  &  1355 (inside back cover);
  doi:10.1002/anie.201913024  &  doi:10.1002/anie.201915127.