Abstract
The complexes Na(Et2O)(dpp-BIAN)AlEt2 (5) and Na(η6-C6H6)(dpp-BIAN)AlEt2 (6) were synthesized by reactions of the disodium salts of dpp-BIAN (dpp-BIAN is 1,2-bis[(2,6-di-isopropylphenyl)imino]acenaphthene) with 1 equiv. of Et2AlCl in diethyl ether and benzene, respectively. The structures of both complexes were established by X-ray diffraction. In molecules 5 and 6, diethylaluminum is chelated by the dianionic dpp-BIAN ligand. The sodium cations in molecules 5 and 6 are located above the plane of the diimine fragments and coordinate the Et2O or benzene molecule, respectively.
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