Non-covalent Molecular Wires of Double Thiahelicene on Cu(111): A nc-AFM Study at Room Temperature.

ABSTRACT: The fine control of molecules or atoms in self-assemblies on surfaces is a great challenge for future nanodevices, specially for unidimensional structure formations. In this context, our study explores the adsorption behavior of a benzo-fused double [7]thiahelicene (DT7H) on Cu(111). Using non-contact atomic force microscopy (nc-AFM) at room temperature, we prove their capability in the construction of linear-like shape adlayers. After a gentle annealing of the DT7H-copper interface, the molecules are prone to form non-covalent molecular wires which orientations are influenced by the surface symmetry. Analysis of the coverage-dependence reveals a preference for double wires at lower and intermediate densities. However, this coupling is not strong enough to prevent structural changes caused

SUBMITTER: Navarro-Marin G 

PROVIDER: S-EPMC11931536 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature