Oligosilyl-substituted alkynecomplexes of group 4 metallocenes have been prepared by reaction of group 4 metallocene dichlorides with magnesium in the presence of the respective alkyne. Depending on the alkyne substitution pattern, either metallacyclopentadienes or metallocene alkynecomplexes were formed. In order to suppress the oxidative coupling process, PMe3 was added to obtain the metallocene alkynecomplex base