Cleavage of Carbene-Stabilized Disilicon

Reaction of carbene-stabilized disilicon L:SiSi:L (L: = :C{N(2,6-Pri2C6H3)CH}2, 1) with BH3·THF results in facile cleavage of the silicon–silicon double bond and the formation of two quite different “push–pull” stabilized products with borane- and carbene-coordinated silylene moieties: 2, containing a parent silylene (:SiH2); and 3, containing a unique three-membered cyclosilylene.

卡宾稳定化二硅烯配合物L:Si=Si:L（其中配体L = :C{N(2,6-二异丙基苯基)CH}2，记为物种1）与硼烷四氢呋喃加合物（BH3·THF）反应时，其硅硅双键可被轻易断裂，同时生成两种结构迥异、经推拉式稳定的产物，二者均含有硼烷与卡宾双配位的硅宾基团：产物2包含母体硅宾（:SiH2），产物3则含有一种独特的三元环硅宾。