ESR Investigation of Radical Cations Formed from Aromatics and Heteroaromatics Adsorbed on Mo-Al2O3 Surfaces

Article abstract of DOI:10.1021/j100446a019

Molybdena-alumina is an important model catalyst system that has attracted considerable attention over the years.The behavior of adsorbed species on catalytic surfaces is also of interest because this may lead to a better understanding of the reaction mechanisms involved in the catalytic process.Using electron spin resonance, we have continued our systematic study of the molybdena-alumina system to which various aromatics and heteroaromatics have been added.We have investigated electron-transfer reactions with the molybdena-alumina surface and have also investigated the structural and dynamical aspects of the resulting adsorbed cations.Computer fitting of the cation ESR spectra has been carried out for a more precise determination of spectral parameters, and a comparison with solution spectral parameters has also been made.