Preparation and Structural Characterization of Molecular Al−O−Sn(II) and Al−O−Sn(IV) Compounds

Reaction of the organoaluminum hydroxide LAl(Me)OH (1) with different stoichiometric ratios of the homoleptic Sn(II) amide, Sn[N(SiMe3)2]2, produced the bimetallic and trimetallic oxygen bridged aluminum−tin compounds LAl(Me)(μ-O)Sn[N(SiMe3)2] (2) and [LAl(Me)(μ-O)]2Sn (3), respectively. The former compound exhibits an Al−O−Sn(II)−N core and the latter an Al−O−Sn(II)−O−Al skeleton. In addition, we obtained the [LAl(Me)(μ-O)SnPh3] (5) with Al−O−Sn(IV) core by the reaction of [L(Me)Al−O−Mg(THF)2N(SiMe3)2] (4) with Ph3SnOH in a 1:1 molar ratio.