A new platinum vapor-derived highly efficient hydrosilylation catalyst: NMR structural investigation

The structural features of a highly efficient hydrosilylation catalyst generated by reaction of Pt vapor and a mixture of mesitylene and 1,3-divinyltetramethyldisiloxane (DVS) were investigated by mono- and bidimensional NMR analyses. The structure around the Pt atoms was highlighted and compared with a commercial sample (Karstedt catalyst) and previously reported Pt vapor-derived system.

A new highly efficient Pt-hydrosilylation catalyst has been prepared by co-vaporization of platinum with a mixture of mesitylene and 1,3-divinyl-1,1,3,3-tetramethyldisiloxane. The characterization and the structure around the Pt atoms has been investigated by mono- and bidimensional NMR spectroscopy.Figure optionsDownload as PowerPoint slide