ASMIUM COMPLEX COMPLEJOS DE OSMIO DIAZONIUM SALTS ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ELECTRODOS MODIFICADOS ELECTRON TRANSFER ESPECTROSCOPIA DE EFECTO TUNEL CON CONTROL ELECTROQUIMICO ESPECTROSCOPIA DE IMPEDANCIA ELECTROQUIMICA Gold MODELO DE SMITH-WHITE MODIFIED ELECTRODES MONOCAPAS MONOLAYERS SALES DE DIAZONIO SMITH-WHITE MODEL TRANSFERENCIA ELECTRONICA TUNNELING SPECTROSCOPY WITH ELECTROCHEMICAL CONTROL Electron transitions Osmium compounds osmium 2,3-Di-O- methylgalactose 4 aminobenzoic acid 4-Aminobenzoic Acid Absorption spectroscopy Agaran Aldehydes Alkylation Amine derivatives Amines Au (111) substrates