A method for the preparation of halogenated oligosilanes and the use of a lewis - base as catalyst for the preparation of halogenated oligosilanes

摘要

It is a process for the preparation of halogenated oligosilanes is specified which is, a disproportionation of hexa halogen disilane, wherein the disproportionation with the aid of a catalyst is carried out. In this case, the catalyst is selected from lewis - bases of the following general formulae: # # str16 # # r¹-O - r² and r¹-Y, where r¹ in each case an aryl is, r² an alkyl or aryl is, and wherein y is a halogen selected from f, cl, br and i is.Furthermore, the use of a lewis - base as catalyst for the preparation of halogenated specified oligosilanes.