作者:E. Hengge、P. Gspaltl、A. Spielberger
DOI:10.1016/0022-328x(94)84104-7
日期:1994.10
New permethylated polycyclic silanes, Nonamethylcyclopentasilanylundecamethylcyclohexasilane, 1,4-Bis(nonamethylcyclopentasilanyl)decamethylcyclohexasilane and Bis(nonamethylcyclopentasilanyl)dimethylsilane, two of them containing both, five- and six-membered rings, were synthesized for the first time and characterized by spectroscopic methods.Comparison of the longest UV-absorption maxima with literature data of compounds containing exclusively either five- or six-membered rings, shows that the influence of ringsize on UV-absorptions, as known in monocyclic silanes, is also present in polycyclic systems.