The preparation of α,ω-dibromopermethylpolysilanes and characterization of these and related chloropermethylpolysilanes by mass spectrometry
作者:Catherine Hurt Middlecamp、Wieslaw Wojnowski、Robert West
DOI:10.1016/s0022-328x(00)93188-7
日期:1977.11
The series of α,ω-dibromopermethylpolysilanes, Br(SiMe2)nBr, (n = 2−6) has been prepared by the action of bromine on dodecamethylcyclohexasilane. The mass spectra of these compounds, of the corresponding chlorine compounds Cl(SiMe2)nCl (n = 2−6), and of the 1-chloropermethylpolysilanes Cl(SiMe2)Me (n = 2, 3, 4, 6) have been recorded at 14 and 70 eV. For compounds with n > 3, the formation of the ions
通过溴在十二甲基环己硅烷上的作用,制备了一系列α,ω-二溴过甲基聚硅烷Br(SiMe 2)n Br,(n = 2-6)。这些化合物,相应的氯化合物Cl(SiMe 2)n Cl(n = 2-6)和1-氯过甲基聚硅烷Cl(SiMe 2)Me(n = 2、3、4、6 )的质谱已被记录在14和70 eV。对于n > 3的化合物,形成离子Si 3 Me 6 X +和Si 4 Me 8 X +(X = Cl,Br)非常受青睐,这些离子是光谱中的主要或基础峰。建议这些离子的稳定性归因于环化和桥联: