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Systematic chemical functionalization of hybrid molecule–surface interfaces

In this article, we briefly overview our experimental and theoretical studies aimed to investigate the electronic structure and the transport properties of several carboxylates chemisorbed on the Cu(110) surface. In particular, we have theoretically explored the possibility to chemically functionalize a carboxylate–Cu(110) system to specifically tune its electronic structure. Experimentally, it could be proven that the transport properties of the carboxylate–Cu(110) interface indeed revealed specific features in the d I/dV spectra corresponding to the used functionalization process. Moreover, the d I/dV spectra can be used to identify specific adsorption geometries or conformations of carboxylates on Cu(110). Furthermore, transport calculations for molecules with different anchoring groups between two Cu(110) electrodes are also discussed.