The dimeric iminoalane, [CpAlN(2,6-i-Pr2C6H3)](2) (2), has been prepar
ed from a double dealkylation reaction between Cp(3)Al and 2,6-diisopr
opylaniline. The single-crystal X-ray structure of 2 reveals a nearly
square planar Al2N2 Core, with each cyclopentadienyl ring coordinated
to its aluminum atom in a pentahapto fashion. This structure represent
s the first solid-state characterization of an eta(5)-coordination geo
metry between a simple C5H5 ring and aluminum.