Thin molecular films of supramolecular porphyrins
AUTOR(ES)
ARAKI, KOITI, LIMA, SIMONE DE SOUZA, WINNISCHOFER, HERBERT
FONTE
Anais da Academia Brasileira de Ciências
DATA DE PUBLICAÇÃO
2000-03
RESUMO
A relevant series of symmetric supramolecular porphyrins has been obtained by attaching four [Ru II(bipy)2Cl] groups to the pyridyl substituents of meso-tetra(4-pyridyl)porphyrin and its metallated derivatives. These compounds display a rich electrochemistry and versatile catalytic, electrocatalytic and photochemical properties, associated with the ruthenium-bipyridine and the porphyrin complexes. These properties can be transferred to the electrodes by attaching thin molecular films of the compounds, by dip-coating, electrostatic assembly or electropolymerization. In this way, the interesting properties of those supermolecules and supramolecular assemblies can be used to prepare molecular devices and sensors.
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