cyclo-Si5Me8ClSiMe2Cl (III). Treatment with [Fe(CO)2Cp]− produced cyclo-Si5Me9SiMe2[Fe(CO)2Cp] (II) and cyclo-Si5Me8[Fe(CO)2Cp]SiMe2[Fe(CO)2Cp] (IV). The structures of II and IV were determined by single crystal X-ray diffraction. Compound II crystallizes in the monoclinic space group P21/c with a 21.531(9) Å, b 9.865(4) Å, c 13.917 Å, β 101.67(2)°, V 2895(2) Å3 and with Z = 4. Compound IV crystallizes
十二甲基环六
硅烷与Me 3 SiCl和AlCl 3的反应产生了环Si 5 Me 9 SiMe 2 Cl(Ia)和环Si 5 Me 8 ClSiMe 2 Cl(III)的混合物。用[Fe(CO)2 Cp] -处理产生的环Si 5 Me 9 SiMe 2 [Fe(CO)2 Cp](II)和环Si 5 Me 8 [Fe(CO)2 Cp] SiMe 2 [Fe (CO)2Cp](IV)。II和IV的结构通过单晶X射线衍射确定。化合物II结晶单斜空间群P 2 1 / ç与一个21.531(9)埃,b 9.865(4),Ç 13.917埃,β101.67(2)°,V 2895(2)埃3,并用ž = 4.化合物IV结晶在斜空间群P 2 1 / ç与一个7.923(2)埃,b 22.504(9)埃,ç 19.168(7)α,β92.86(3)°,V 3413(2)3和Z=4。II的环戊
硅烷片段呈C s构型,四个
硅原子共面,其余
硅1