Scanning tunneling spectroscopy 9 Scanning tunneling microscopy 8 Molecules 6 Chlorine compounds 4 Electrochemical gating 4 Osmium complexes 4 Osmium compounds 4 Self assembled monolayers 4 Spectroscopy 4 Absorption spectroscopy 2 Acids 2 Amino acids 2 Anderson models 2 Aryldiazonium salts 2 Au (111) substrates 2 Au(1 1 1 ) 2 Au(111) surfaces 2 Aviation 2 Binary alloys 2 Bipyridine ligands 2 Bipyridines 2 Covalently bonded 2 Density functional theory 2 Electrochemical electrodes 2 Electrochemical scanning tunneling spectroscopy-gating 2 Electrochemical studies 2 Electrolytes 2 Electron transfer mechanisms 2 Electron transitions 2 Electron transport properties 2