Chlor-, Brom- und Iodtrisilane: Synthesen und 29Si-Kernresonanzspektren
摘要:
Halogenated trisilanes XnSi3H8-n with X = Cl, Br, I and n = 2-7 as well as the tetrasilanes H2XSiSiX2SiX2SiX2H have been prepared by dearylation of appropriate aryltrisilanes and aryltetrasilanes (aryl = phenyl, p-tolyl) with either liquid or gaseous hydrogen halides. The compounds have been characterized with elemental analysis as well as Si-29 NMR spectroscopy. (C) 1997 Elsevier Science S.A.
已经合成了氯化和溴化的芳基三硅烷Cl n Si 3 Ar 8- n和Br n Si 3 Ar 8- n(Ar =苯基,对甲苯基)以及四硅烷(Ar =苯基)。第一步是Ph 3 SiSiPh 2 SiPh 3,Ph 3 SiSiClPhSiPh 3,p-Tol 3 SiSiPh 2 SiPh 3,Ph 3 SiSip-Tol 2 SiPh 3,Cl 3 SiSiCl 2 SiPh 3或H(SiPh 2)4 ħ已经制备,并随后用三氟甲磺酸(CF 3 SO 3 1H),随后三氟甲磺酸酯取代基的亲核取代(CF 3 ö 2 SO)与X -(X =氯,溴,H)。已描述了所得化合物的物理性质,这些化合物是合成芳基三硅烷H n Si 3 Ar 8- n和芳基四硅烷H n Si 4 Ar 10- n的有价值的前体,并已报道了其红外光谱和29 Si NMR光谱。