4-Dicyanomethylene-1-trimethylsilylsilacyclohexane (2a) and the trisilane analog (2b) showed the intramolecular CT bands in the absorption spectra. In combination with the results of the X-ray structure analysis of 2a, the origin of the σ(Si–Si)-π CT interaction was ascribed to the through-bond orbital interaction.
4-二
氰基亚甲基-1-三甲基
硅基
硅环己烷(2a)和三
硅烷类似物(2b)在吸收光谱中显示出分子内CT带。结合2a的X射线结构分析结果,σ(Si-Si)-π CT相互作用的起源归因于通过键轨道相互作用。