Small-Molecule Activation by Heteroleptic Metallasilylenes

We report on reactions of heteroleptic metallasilylenes L-1(Cl)MSiL2 (M=Al 1, Ga 2, L-1=HC[C(Me)NDipp](2), Dipp=2,6-(Pr2C6H3)-Pr-i; L-2=PhC((NBu)-Bu-t)(2)) with CO2, N2O, and Me3SiN3, yielding the corresponding carbonate complexes L-1(Cl)MOSi(CO3-kappa O-2,O-)L-2 (M=Al 3, Ga 4), silanoic esters L-1(Cl)MOSi(O)L-2 (M=Al 5, Ga 6), and silaimine L-1(Cl)GaSi(NSiMe3)L-2 (8), whereas {(LSi)-Si-2[N(SiMe3)Al(Cl)C(Me)NDipp][CHC(Me)N(Dipp)]} 7 was formed by C-C bond cleavage of the L-1 ligand. Compounds 3-8 were characterized by NMR (H-1, C-13) and IR spectroscopy, elemental analysis and single crystal X-ray diffraction.

Automated summary

We report on the reactions of heteroleptic metallasilylenes with CO2, N2O, and Me3SiN3, resulting in the formation of corresponding carbonate complexes, silanoic esters, and silaimine. In addition, a new compound was synthesized through C-C bond cleavage.