An Alkynylaminomethylaluminum Species with a Six-Membered Chair Conformation Al2C2N2 Framework: A New Path to Geminal N/Al Frustrated Lewis Pairs

Abstract

The hydroalumination of the fused pentahydride aminocarbaaluminum species [(C6H3(iPr2-2,6)N(μ-AlH2)CH2)2(μ-AlH)NMe3] (1) with phenylacetylene resulted in the unexpected dimer [C6H3(iPr2-2,6)(*N)HCH2Al(CCPh)2]2 (2) with chiral centers at the nitrogen atoms. Compound 2 was characterized by X-ray structural analysis and contains geminal frustrated Lewis pairs.