Abstract
AbstractOrganoaluminum alkyls L1AlMe2 (1), L2AlMe2 (2) and L2AliBu2 (3) with O,C,O‐chelating ligands L1 and L2 [L1 = 2, 6‐(MeOCH2)2C6H3 and L2 = 2, 6‐(tBuOCH2)2C6H3] were prepared. The compounds have been characterized by elemental analysis, 1H, 13C, 27Al NMR spectroscopy and X‐ray diffraction analysis (3). Solution NMR studies indicated the four coordinated aluminum atom and dissociation/association dynamic process in solution of 1–3. The X‐ray diffraction analysis of 3 showed that the aluminum atom is [4 + 1] coordinated with the trans‐trigonal bipyramidal geometry. The reactivity of 2 was investigated. Reactions of 2 with MeOH and I2 resulted in aluminum alkoxide [L2Al(OMe)2 (4)] and iodides [L2AlI2· THF (5) and L2AlI2 (6)], respectively, characterized by elemental analysis, IR and 1H, 13C and 27Al NMR spectroscopy. Copyright © 2005 John Wiley & Sons, Ltd.
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