Synthesis and solid state structures of tri-t-butyl-cyclopropenyl derivatives of main group elements: Cyp*MPh3 (M=Si, Ge, Sn)
作者:Zi-Ye Hua、Joel T. Mague、Mark J. Fink
DOI:10.1016/j.jorganchem.2005.12.029
日期:2006.3
the cyclopropenyl compounds Cyp*MPh3 as air and moisture stable solids in 11%, 74%, and 77% yields, respectively. Attempts to prepare Cyp*PbPh3 by this method were unsuccessful. The X-ray crystal structures of all three of these compounds were obtained. The M–C(Cyp*) bond distances increase with the order: Sn–C (2.19 Å) > Ge–C (2.00 Å) > Si–C (1.91 Å). A high degree of steric strain is evidenced for