Preparation and Structure of Lithium Bis[c«-ethene-l,2-di('butylamido)]gallate(III) Tetrahydrofuran
نویسندگان
چکیده
The dilithium diamide reagent obtained from N,N'-di('butyl)-l,4-diazabutadiene and two equivalents of lithium metal reacts with anhydrous gallium trichloride in tetrahydrofuran / hexane, followed by treatment with metallic potassium, to give the title compound in about 40% yield. Cyclic imides of gallium(III) and gallium(II) are by-products of this process. The structure of Li{[ds-C 2 H2 (N'Bu)2 ]2 Ga} has been determined from single crystals containing one mole equivalent of tetrahydrofuran. The gallium atom is chelated by two diamide ligands. One of the five-membered chelate rings is planar while the second one is folded at its nitrogen atoms. The lithium atom is r f -coordinated to the 1,4-diazabutene(2) unit of this ring and further to the oxygen atom of the solvent molecule.
منابع مشابه
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