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X-ray Crystal Structure of Trans-UO2(N(SiMe3)2)2(THF)2: One in a Series of Uranyl(VI) Complexes Supported by Bis(trimethylsilyl)amido Ligands

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Abstract

The title compound trans-UO2(N(SiMe3)2)2(THF)2 (1) was synthesized and characterized by X-ray crystallography. The complex crystallizes in the monoclinic space group C2/c (#15) with lattice parameters a = 16.0771(5) Å, b = 13.1196(4) Å, c = 16.9391(6) Å, β = 116.853(1)°, V = 3187.61(18) Å3, Z = 4, D calc = 1.532 g cm-3. The six-coordinate uranium(VI) center adopts an all-trans octahedral geometry consisting of mutually trans oxo groups, silylamido ligands, and neutral THF donors. Structural comparisons of this uranyl(VI) bis(amido) complex with a related tris(amido) derivative within the series are made based on symmetry, charge, and coordination number.

Graphical Abstract

The X-ray crystal structure of the title complex is reported, providing comparisons based on symmetry, charge, and coordination number with a related uranyl(VI) amido derivative within this series.

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Acknowledgements

This work was financially supported by the American Chemical Society Petroleum Research Fund and the University of Missouri Research Board.

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  1. Department of Chemistry, University of Missouri-Columbia, 601 S. College Ave, Columbia, MO, 65211, USA

    Anthony E. Vaughn, Charles L. Barnes & Paul B. Duval

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  1. Anthony E. Vaughn
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  2. Charles L. Barnes
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  3. Paul B. Duval
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Correspondence to Paul B. Duval.

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Vaughn, A.E., Barnes, C.L. & Duval, P.B. X-ray Crystal Structure of Trans-UO2(N(SiMe3)2)2(THF)2: One in a Series of Uranyl(VI) Complexes Supported by Bis(trimethylsilyl)amido Ligands. J Chem Crystallogr 37, 779–782 (2007). https://doi.org/10.1007/s10870-007-9250-5

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  • DOI: https://doi.org/10.1007/s10870-007-9250-5

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