E. Hengge, M. Weinberger
Jul 21, 1992
Citations
0
Influential Citations
31
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Dehydrogenative polymerization of pentamethyldisilane by means of CP2MMe2 (M Ti, Zr) afforded a mixture of the oligosilanes Me3Si[Me2Si]2 SiMe2H; 1,1,2,2-tetramethyldisilane reacts to a mixture of the oligosilanes Me2HSi[ Me2Si]nSiHMe2. Dehydrogenative polymerization of 1,2-dimethyldisilane by use of Cp2MR2 (M Ti, Zr; R Me, nBu) afforded the new unique cross linked polysilane polymer poly(methylsilane) (MeSiHx)n. The pyrolysis of (MeSiHx)n at 1500°C (argon) gives a ceramic yield (SiC) of 88%. The polymerization progress is observed and investigated by GLC, GC-MS and 29Si-NMR spectroscopy, and the oligomers, formed at the beginning of the polymerization, are identified.