Exchange Reactions deuterium-unsaturated hydrocarbons

M. Salmerdn and G.A. Somoijai. Desorption, Decomposition, and Deuterium Exchange Reactions of Unsaturated Hydrocarbons (Ethylene, Acetylene, Propylene, and Butenes) on the Pt(lll) Crystal Face. J. Phys. Chem. 86 341 (1982). 

The patterns of behavior in catalysis by metals were mainly focused on hydrogenation of unsaturated hydrocarbons and deuterium exchange reactions. These reactions were performed in static systems. Evaporated metal films were widely used for these reactions but the problem was to get reproducible metal surfaces, in other words to have clean metal catalysts [2, 3]. 

A trispyrazolylborate platinum complex was found to activate C-H bonds via a Pt(ii)/Pt(iv) sequence. Removal of a methyl anion from [(77 -Tp )RhMe2] leads to an unsaturated species that then adds to the hydrocarbon C-H bond (Equation (12)). The related protonatcd species Tp PtMc2H loses methane at 110°G and then oxidatively adds benzene- 6. The new methyl-phenyl-deuteride derivative then reversibly exchanges deuterium into the methyl group, indicating reversible methane activation. In addition, the Pt-H bond can undergo reaction with oxygen to... 

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