Si[C6H4–4-SiMe2(CH2CH=CH2)]4 (7b) and ClSi[C6H4–4-SiC6H4–4-SiMe2(CH2CH=CH2)}3]3 (10a) in the solid state are reported. The crystal structures of both dendrimers are based on C–H···πCC (πCC = double bond of the CH=CH2 groups) and π–π interactions. The 3D network structure observed for 7b is composed of three crystallographically independent head-to-head stacking columns along the crystallographic b axis
                                    一系列 1-Br–
C6H4–4-SiMe3–n(   CH=
CH2)n (n = 1, 2, 3), Si[    –4-SiMe3–n(   CH=   ) 型碳
硅烷的合成n]4, 1-Br–    -4-Si[    –4-SiMe3–n(   CH=   )n]3 (n = 0, 1, 2, 3), ClSi[    –4-Si     –4-SiMe3–n(   CH=   )n}3]3, Si[    –4-Si    –4-SiMe3–n(   CH=   )n}3]4 (n = 1, 2),并讨论了 1-Br–    –4-Si[    –4-Si    –4-SiMe3–n(   CH=   )n}3]3 (n = 0, 1, 2, 3)。Si[    -4-SiMe2(   CH=   )]4(7b)和ClSi[    -4-Si    -4-SiMe2(   C