Air-Stable Tetrakis(2,4,6-triisopropylphenyl)disilene. Direct Synthesis of Disilene from Dihalomonosilane
The most air-stable disilene, tetrakis(2,4,6-triisopropylphenyl) disilene was obtained by the direct treatment of dichloromonosilane, bis(2,4,6-triisopropylphenyl)dichlorosilane, with lithium naphthalenide. The Si=Si bond, the distance being 2.144 A via X-ray structure analysis, was found to be sterically covered with the four bulky substituents.