In situ gap-mode Raman spectroscopy on single-crystal Au(100) electrodes: tuning the torsion angle of 4,4'-biphenyldithiols by an electrochemical gate field.

In situ gap-mode Raman spectroscopy on single-crystal Au(100) electrodes: tuning the torsion angle of 4,4'-biphenyldithiols by an electrochemical gate field.