Due to an intrinsically polar π-bond with a narrow π-π* gap, silenes (silicon-carbon doubly bonded compounds) should receive remarkable attentions as a member of π-conjugation units. We report herein synthesis, structure, and properties of an isolable bromosilene (1). Single-crystal X-ray diffraction analysis revealed the planar geometry around silene moiety with Z-configuration in 1. Substitution of the bromo group in 1 to alkyl, amino, and silyl groups proceeds to afford the corresponding silenes 7a-c.

中文翻译：

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可分离的溴硅烯：合成，结构和取代反应

由于固有的极性π键具有窄的π-π*间隙，因此，作为π共轭单元的成员，硅（硅碳双键化合物）应引起广泛关注。我们在此报告了可分离的溴化硅（1）的合成，结构和性质。单晶X射线衍射分析显示1中具有Z构型的硅部分周围的平面几何形状。在溴基的取代1至烷基，氨基，和甲硅烷基进行，得到相应的硅烯7A - Ç。