Electronic Coupling of Molecular Complexes to Au Electrodes Mediated via Host-Guest Interactions.

ABSTRACT: Immobilization of molecular catalysts onto electrode surfaces using host-guest (HG) interactions enables the facile regeneration of electrodes following catalyst degradation. Beyond this practical aspect, the architecture also offers a unique way to study the electronic coupling of molecules to the electrode through a nominally insulating linker. Here, we employ surface-enhanced infrared absorption spectroscopy (SEIRAS) to characterize the binding and electronic coupling of Au-bound HG complexes. Distinct spectral features and binding kinetics differentiate host-bound species from physisorbed analogues, confirming well-defined HG assemblies on the surface. Analysis of the wavenumber shifts of the guest as a function of applied potential suggests that while the coupling of physisorbed guest

SUBMITTER: Tuncay I 

PROVIDER: S-EPMC12814342 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature