1227403-87-3Relevant academic research and scientific papers
Synthesis of a stable four-membered Si2O2 ring and a dimer with two four-membered Si2O2 rings bridged by two oxygen atoms, with five-coordinate silicon atoms in both ring systems
Sen, Sakya S.,Tavcar, Gasper,Roesky, Herbert W.,Kratzert, Daniel,Hey, Jakob,Stalke, Dietmar
, p. 2343 - 2347 (2010)
The base-stabilized bis-silylene (LSi-SiL, L = PhC(NtBu)2) was reacted with benzophenone in a 1:2 ratio in THF, which afforded a Si 2O2 four-membered ring, stabilized by bulky amidinato ligands. The most striking phenomenon is the abstraction of oxygen from benzophenone and the simultaneous formation of a silicon carbon bond. The four-membered Si2O2 ring is planar, and both the silicon atoms are five-coordinate. The two silicon atoms are arranged opposite each other in the four-membered Si2O2 ring. Moreover LSi-SiL was treated with N2O to afford two four-membered Si2O 2 rings connected with two oxygen atoms. In this structure also the silicon atoms are five-coordinate.
