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- W2312416076 abstract "Reactions of 3 and 2 equiv of lithium dimethylamide with ZrCl4 in THF afford dinuclear complexes (Me2N)3Zr(μ-Cl)2(μ-NMe2)Zr(NMe2)2(THF) (1) and Cl(Me2N)2Zr(μ-Cl)2(μ-NMe2)Zr(NMe2)2(THF) (2), respectively. These complexes were found to have unusual structures containing dichloro(amido) bridges between Zr atoms. Both complexes 1 and 2 crystallize in the monoclinic space group P21/c (a = 8.735(3) Å, b = 21.498(7) Å, c = 13.997(5) Å, β = 92.56(3)°, Z = 4 for 1; a = 8.550(3) Å, b = 20.673(7) Å, c = 14.229(6) Å, β = 95.11(3)°, Z = 4 for 2). Each Zr atom in 1 and 2 has a trigonal antiprismatic coordination geometry. Reaction of 1 equiv of lithium dimethylamide with ZrCl4 in THF gave the monosubstituted complex as the LiCl adduct (Me2N)(THF)ZrCl2(μ-Cl)2Li(THF)2 (4), which crystallizes in the triclinic space group P1̄ (a = 10.078(6) Å, b = 11.003(7) Å, c = 11.039(6) Å, α = 84.75(5)°, β = 78.38(5)°, γ = 66.65(5)°, Z = 2). In 4, the Zr atom has a distorted octahedral coordination geometry. These new amido complexes add to the missing members of the Zr(NMe2)xCl4-x series. The dynamic NMR of 1 has also been studied." @default.
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- W2312416076 date "1998-04-28" @default.
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- W2312416076 title "Synthesis and Characterization of Unusual Dichloro(amido)-Bridged Zirconium Complexes. X-ray Crystal Structures of (Me<sub>2</sub>N)<sub>3</sub>Zr(μ-Cl)<sub>2</sub>(μ-NMe<sub>2</sub>)Zr(NMe<sub>2</sub>)<sub>2</sub>(THF) and Cl(Me<sub>2</sub>N)<sub>2</sub>Zr(μ-Cl)<sub>2</sub>(μ-NMe<sub>2</sub>)Zr(NMe<sub>2</sub>)<sub>2</sub>(THF)" @default.
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- W2312416076 doi "https://doi.org/10.1021/ic980046h" @default.
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