Abstract:The kinetic energy dependences of the reactions of Pt+ (2D5/2) with SO2 were studied using a guided ion beam tandem mass spectrometer and theory. The observed cationic products are PtO+ and PtSO+, with small amounts of PtS+, all formed in endothermic reactions. Modeling the kinetic energy dependent product cross sections allows determination of the product bond dissociation energies (BDEs): D0(Pt+–O) = 3.14 ± 0.11 eV, D0(Pt+–S) = 3.68 ± 0.31 eV, and D0(Pt+–SO) = 3.03 ± 0.12 eV. The oxide BDE agrees well with m… Show more
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