THE FIRST STRUCTURALLY CHARACTERIZED MONOLITHIO ALUMINUM AMIDE DIMER

Herein is reported the first synthesis and structural characterization of a monolithio aluminum amide dimer: [Me(2)AlNLi(THF)(2)Ph](2). It i s prepared by deprotonation of the corresponding neutral dimeric speci es [Me(2)AlNHPh](2) with tBuLi in THF in 78% yield. Characterization d ata include H-1 and C-13 NMR, elemental analysis, and a single crystal X-ray analysis. The crystal structure demonstrates that the lithium a toms are still associated with the molecule. The spectroscopic and str uctural data indicate that there is not a significant degree of pi bon ding between. the Al and N atoms.