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Terhorst J, Lenze S, Metzler L, Fry AN, Ihabi A, Corcovilos TA, van Stipdonk MJ. Gas-phase synthesis of [OU-X] + (X = Cl, Br and I) from a UO 22+ precursor using ion-molecule reactions and an [OUCH] + intermediate. Dalton Trans 2024; 53:5478-5483. [PMID: 38414425 DOI: 10.1039/d3dt02811a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Difficulty in the preparation of gas-phase ions that include U in middle oxidation states(III,IV) have hampered efforts to investigate intrinsic structure, bonding and reactivity of model species. Our group has used preparative tandem mass spectrometry (PTMS) to synthesize a gas-phase U-methylidyne species, [OUCH]+, by elimination of CO from [UO2(CCH)]+ [M. J. van Stipdonk, I. J. Tatosian, A. C. Iacovino, A. R. Bubas, L. Metzler, M. C. Sherman and A. Somogyi, J. Am. Soc. Mass Spectrom., 2019, 30, 796-805], which has been used as an intermediate to create products such as [OUN]+ and [OUS]+ by ion-molecule reactions. Here, we investigated the reactions of [OUCH]+ with a range of alkyl halides to determine whether the methylidyne is a also a useful intermediate for production and study of the oxy-halide ions [OUX]+, where X = Cl, Br and I, formally U(IV) species for which intrinsic reactivity data is relatively scarce. Our experiments demonstrate that [OUX]+ is the dominant product ion generated by reaction [OUCH]+ with neutral regents such as CH3Cl, CH3CH2Br and CH2CHCH2I.
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Affiliation(s)
- Justin Terhorst
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
| | - Samuel Lenze
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
| | - Luke Metzler
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
| | - Allison N Fry
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
| | - Amina Ihabi
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
| | | | - Michael J van Stipdonk
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, PA 15282, USA.
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Deason TK, Hines AT, Morrison G, Smith MD, Besmann TM, Mofrad AM, Fondeur FF, Lehman-Andino I, Amoroso JW, DiPrete DP, Zur Loye HC. Flux Crystal Growth of the Extended Structure Pu(V) Borate Na 2(PuO 2)(BO 3). J Am Chem Soc 2023; 145:10007-10014. [PMID: 37097728 DOI: 10.1021/jacs.2c11355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
As part of our exploration of plutonium-containing materials as potential nuclear waste forms, we report the first extended structure Pu(V) material and the first Pu(V) borate. Crystals of Na2(PuO2)(BO3) were grown out of mixed hydroxide/boric acid flux and found to crystallize in the orthorhombic space group Cmcm with lattice parameters of a = 9.9067(4) Å, b = 6.5909(2) Å, and c = 6.9724(2) Å. Na2(PuO2)(BO3) adopts a layered structure in which layers of PuO2(BO3)2- are separated by sodium cations. Plutonium is found in a pentagonal bipyramidal coordination environment, with axial Pu(V)-O plutonyl bond lengths of 1.876(3) Å and equatorial Pu-O bond lengths ranging from 2.325(5) to 2.467(3) Å. We find that the Pu(V)-O plutonyl bond lengths are approximately 0.1 Å longer than the reported Pu(VI)-O plutonyl bond lengths and shorter by approximately 0.033 Å than the corresponding U(V) uranyl bond lengths. Raman spectroscopy on single crystals was used to determine the PuO2+ plutonyl stretching and the equatorial breathing mode frequencies of the pentagonal bipyramidal coordination environment around plutonium. Density functional theory calculations were used to calculate the Raman spectrum to help identify the Raman bands at 690 and 630 cm-1 as corresponding to the plutonyl(V) ν1 stretch and the equatorial PuO5 breathing mode, respectively. UV-vis measurements on single crystals indicate semiconducting behavior with a band gap of ∼2.60 eV.
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Affiliation(s)
- Travis K Deason
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Adrian T Hines
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Gregory Morrison
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Mark D Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Theodore M Besmann
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Amir M Mofrad
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Fernando F Fondeur
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Ingrid Lehman-Andino
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Jake W Amoroso
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - David P DiPrete
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Hans-Conrad Zur Loye
- Center for Hierarchical Waste Form Materials, Columbia, South Carolina 29208, United States
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
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Zhang WJ, Wang C, Wang K, Zhang P, Hu SX. The stability and chemical bonding of a series tridentate ligand-actinyl complexes: [AnO2(L)2]2+ (An: U and Am). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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