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The reaction of [(Dpp-Bian)AlH(THF)] (I) (Dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imi-no]acenaphthene) with 1,3-dicyclohexylcarbodiimide (DCC) is accompanied by reduction of the carbodiimide C=N bond giving the complex [(Dpp-Bian)Al(DCC(H))] (II). In the reaction of hydride I with 2,6-di-tert-butyl-4-methylphenol, the Al–H bond is retained to give the amino-amine complex [(Dpp-BianH)Al(H)(OC6H2-2,6-tert-Bu2-4-Me)] (III). In compounds II and III, the diimine ligand is reduced to the dianion. New diamagnetic compounds II and III were characterized by IR and NMR spectroscopy, elemental analysis, and X-ray diffraction (CFA files CCDC nos. 1903665 (II) and 1903666 (III)).
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