N-isopropyl-2-(isopropylamino)troponiminate complexes of lithium and calcium |
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Authors: | H V Rasika Dias Wiechang Jin |
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Institution: | (1) Department of Chemistry and Biochemistry, The University of Texas at Arlington, 76019 Arlington, Texas |
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Abstract: | The synthesis and structures of (i-Pr)2ATI]Li2(thf)(I)(1) and (i-Pr)2ATI]Ca(thf)2(I)2Li2(thf)2-(i-Pr)2ATI] (2) (where (i-Pr)2ATI]=N-isopropyl-2-(isopropylamino)troponiminate) have been described. The lithium atoms in compounds1 and2 occupy positions above and below the plane of the aminotroponiminate ligand. The calcium atom in2 adopts a pseudo-octahedral geometry with two tetrahydrofurans occupying thetrans-positions. Compound1 crystallizes as dimeric units. Crystal data with MoKα at 193 K:1, C17H27ILi2N2O,a=13.217(2)Å,b=9.875(2)Å,c=16.410(4)Å, B=111.41(1)o,V=1993.4(6)Å3, a monoclinic space groupP21/n,Z=4,R=0.029;2, C42H70CaI2Li2N4O4,a=911.390(2)Å,b=30.880(4)Å,c=13,465(2)Å, B=93.85(1)o,V=4724(1)Å3, monoclinic space groupC2/c,Z=4,R=0.027. |
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Keywords: | Aminotroponiminate calcium lithium |
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