THE CHEMISTRY OF ALUMINUM-NITROGEN COMPOUNDS: I. REACTIONS OF TRIMETHYLALUMINUM AND TRIMETHYLALUMINUM TRIMETHYLAMINE WITH SEVERAL METHYLHYDRAZINES

Abstract

The reactions of trimethylaluminum and trimethylaluminum trimethylamine with various methylhydrazines have produced a number of complexes and polymers: with methylhydrazine, both Me3Al and Me3Al:NMe3 produce the polymer [—MeAlNHNMe—]n with 1,2-dimethylhydrazine, both produce the polymer [—Al(MeNNMe)1.5—]n; with 1,1-dimethylhydrazine, Me3Al produces [Me2Al—NHNMe2]2 and Me3Al:NMe3 produces the unusual complex Me2Al(NHNMe2) (NH2NMe2); with trimethylhydrazine, Me3Al produces [Me2Al—NMeNMe2]2 and Me3Al:NMe3 produces an isomer with the same formula but an as-yet-uncharacterized structure. In addition, the intermediate Me3Al:NHMeNMe2 has been isolated from the reaction of either Me3Al or Me3Al:NMe3 with trimethylhydrazine. With tetramethylhydrazine, Me3Al produces Me3Al:NMe2NMe2. The formation of the complexes with covalent aluminum–nitrogen bonds is specific and methane is the only gas eliminated during these reactions.