ИСТИНА

The concept of “cocktail” of catalysts (or dynamic catalytic systems) was first proposed in our laboratory and is widely developing nowadays. It states the interconversion of metal species (such as molecular complexes, clusters, nanoparticles) contributing to catalytic activity separately [1], therefore the homogeneous and heterogeneous paths are present simultaneously (fig.1). Palladium catalytic systems were proved to be dynamic [1, 2]. In our opinion platinum catalytic systems should also possess dynamicity and we challenged to show that in this work. The hydrosilylation reaction of acetylene derivatives was taken as a model reaction and transformations of species from supported platinum catalysts was investigated. Obtained results will be discussed.