Reaction mechanism for the oxidation of free silver dimers

The kinetics of the interaction of Ag2+ with O2 is studied in the gas phase under multi-collision conditions at various temps. A new exptl. scheme is employed, which consists of an octopole ion trap of variable temp. inserted into a tandem quadrupole mass spectrometer. From the time evolution of the reactant and product mol. concns. at different temps. the corresponding reaction mechanism is extd. Surprisingly, the product Ag2O+ is detected, which is formed after mol. adsorption and dissocn. of O2. We can clearly identify Ag2O2+ as an intermediate in this reaction. In addn., abs. rate coeffs. and activation energies for the mol. adsorption of O2 onto Ag2+ are presented. [on SciFinder(R)]     «

The kinetics of the interaction of Ag2+ with O2 is studied in the gas phase under multi-collision conditions at various temps. A new exptl. scheme is employed, which consists of an octopole ion trap of variable temp. inserted into a tandem quadrupole mass spectrometer. From the time evolution of the reactant and product mol. concns. at different temps. the corresponding reaction mechanism is extd. Surprisingly, the product Ag2O+ is detected, which is formed after mol. adsorption and dissocn. of...     »