Synthesis and Structures of β‐Diketoiminate Complexes of Magnesium |
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Authors: | Jö rg Prust,Kerstin Most,Ilka Mü ller,Eftichia Alexopoulos,Andreas Stasch,Isabel Usó n,Herbert W. Roesky |
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Abstract: | The reaction of the β‐diketoiminate lithium complex (dipp)NacNacLi · OEt2 ((dipp)NacNac = 2‐((2,6‐diisopropylphenyl)amino)‐4‐((2,6‐diisopropylphenyl)imino)‐pent‐2‐enyl) with iPrMgCl and MgI2 yield the corresponding (dipp)NacNacMgiPr · OEt2 ( 1 ) and (dipp)NacNacMgI · OEt2 ( 2 ). The reaction of 2 with NaBH4 in diethylether gives (dipp)NacNacMg(μ‐H)3BH · OEt2 ( 3 ). The core element of compounds 1 – 3 is a six‐membered ring formed by N(1)–C(1)–C(2)–C(3)–N(2) and magnesium. The structures of 1 and 2 show the β‐diketoiminate backbone in a boat‐conformation with the tetrahedrally coordinated metal center at the prow and the opposing carbon atom at the stern. The magnesium atom in 3 is octahedrally coordinated and out of the β‐diketoiminate plane. |
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Keywords: | β ‐Diketoiminate ligands Boranates Magnesium |
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