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Structural and Theoretical Assessment of Covalency in a Pu(III) Borohydride Complex
Journal article   Open access   Peer reviewed

Structural and Theoretical Assessment of Covalency in a Pu(III) Borohydride Complex

Joshua C Zgrabik, Daniel J Lussier, Rina Bhowmick, Ngan Nguyen, Peter A Zacher, Tatyana Elkin, Andrew J Gaunt, George S Goff, Harris E Mason, Jesse Murillo, …
Journal of the American Chemical Society, Vol.146(38), pp.25943-25948
09/16/2024
DOI: 10.1021/jacs.4c09888
PMCID: PMC11440501
PMID: 39283691
url
https://doi.org/10.1021/jacs.4c09888View
Published (Version of record) Open Access

Abstract

Despite the discovery of actinide borohydride complexes over 80 years ago, no plutonium borohydride complexes have been structurally validated using single-crystal X-ray diffraction (XRD). Here we describe Pu2(H3BPtBu2BH3)6, the first example of a Pu(III) borohydride complex authenticated by XRD and NMR spectroscopy. Theoretical calculations (DFT, EDA, and QTAIM) and experimental comparisons of metal-boron distances suggest that metal-borohydride covalency in M2(H3BPtBu2BH3)6 complexes generally decreases in the order M = U(III) > Pu(III) > Ln(III).Despite the discovery of actinide borohydride complexes over 80 years ago, no plutonium borohydride complexes have been structurally validated using single-crystal X-ray diffraction (XRD). Here we describe Pu2(H3BPtBu2BH3)6, the first example of a Pu(III) borohydride complex authenticated by XRD and NMR spectroscopy. Theoretical calculations (DFT, EDA, and QTAIM) and experimental comparisons of metal-boron distances suggest that metal-borohydride covalency in M2(H3BPtBu2BH3)6 complexes generally decreases in the order M = U(III) > Pu(III) > Ln(III).
Ligands UIOWA OA Agreement Actinides Covalent bonding Lanthanides Organic polymers

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