Plutonium

Clark, David L.; Hecker, Siegfried S.; Jarvinen, Gordon D.; Neu, Mary P.

doi:10.1007/978-94-007-0211-0_7

Cited by 48 publications

(74 citation statements)

References 886 publications

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“…Similar shifts to higher stability of complexes with four ligands relative to those with five have been observed previously with gas-phase uranyl-nitrile complexes [12]. Figure 1 shows the CID spectrum produced from [An VI O 2 (DMF) 4 ] 2+ , An = U, Np, and Pu, precursor ions. In each spectrum, abnormal artifact peaks, the origins of which are unknown, were observed in the region of the precursor and doubly-charged product ions.…”

Section: Resultssupporting

confidence: 76%

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Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide

Rutkowski

Ríos

Gibson

et al. 2011

J. Am. Soc. Mass Spectrom.

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Section: Resultssupporting

confidence: 76%

“…The linear, hexavalent actinyl ions, {O=An VI =O} 2+ , are important in solution chemistry of U [2], Np [3] and Pu [4]. The americyl ion, Am VI O 2 2+ , is a stable species in solution but is not predominant under most conditions [5].…”

Section: Introductionmentioning

confidence: 99%

Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide

Rutkowski

Ríos

Gibson

et al. 2011

J. Am. Soc. Mass Spectrom.

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Section: Plutonium Boratesmentioning

confidence: 99%

“…76 Five oxidation states including Pu(III), Pu(IV), Pu(V), Pu(VI), and Pu(VII) are accessible in aqueous solution and can be prepared in solid state under the appropriate conditions. 76 The redox chemistry of plutonium is very complicated due to the fact that Pu(III), Pu(IV), Pu(V), Pu(VI) can coexist in solution under a wide range of conditions. 76 Although neptunium in both aqueous solution and solid state is dominated by Np(V) species, 48 several mixed/intermediate valence neptunium borate compounds can still be prepared in boric acid flux as discussed above.…”

Section: Plutonium Boratesmentioning

confidence: 99%

“…76 The redox chemistry of plutonium is very complicated due to the fact that Pu(III), Pu(IV), Pu(V), Pu(VI) can coexist in solution under a wide range of conditions. 76 Although neptunium in both aqueous solution and solid state is dominated by Np(V) species, 48 several mixed/intermediate valence neptunium borate compounds can still be prepared in boric acid flux as discussed above. It is thus expected that mixed/intermediate-valent plutonium borates can be prepared.…”

Section: Plutonium Boratesmentioning

confidence: 99%

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Recent progress in actinide borate chemistry

et al. 2011

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The use of molten boric acid as a reactive flux for synthesizing actinide borates has been developed in the past two years providing access to a remarkable array of exotic materials with both unusual structures and unprecedented properties.[ThB 5 O 6 (OH) 6 ][BO(OH) 2 ]Á2.5H 2 O possesses a cationic supertetrahedral structure and displays remarkable anion exchange properties with high selectivity for TcO 4 À . Uranyl borates form noncentrosymmetric structures with extraordinarily rich topological relationships. Neptunium borates are often mixed-valent and yield rare examples of compounds with one metal in three different oxidation states. Plutonium borates display new coordination chemistry for trivalent actinides. Finally, americium borates show a dramatic departure from plutonium borates, and there are scant examples of families of actinides compounds that extend past plutonium to examine the bonding of later actinides. There are several grand challenges that this work addresses. The foremost of these challenges is the development of structure-property relationships in transuranium materials. A deep understanding of the materials chemistry of actinides will likely lead to the development of advanced waste forms for radionuclides present in nuclear waste that prevent their transport in the environment. This work may have also uncovered the solubility-limiting phases of actinides in some repositories, and allows for measurements on the stability of these materials.

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Minor Actinides Can Replace Essential Lanthanides in Bacterial Life**

et al. 2023

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Certain f‐block elements—the lanthanides—have biological relevance in the context of methylotrophic bacteria. The respective strains incorporate these 4 f elements into the active site of one of their key metabolic enzymes, a lanthanide‐dependent methanol dehydrogenase. In this study, we investigated whether actinides, the radioactive 5 f elements, can replace the essential 4 f elements in lanthanide‐dependent bacterial metabolism. Growth studies with Methylacidiphilum fumariolicum SolV and the Methylobacterium extorquens AM1 ΔmxaF mutant demonstrate that americium and curium support growth in the absence of lanthanides. Moreover, strain SolV favors these actinides over late lanthanides when presented with a mixture of equal amounts of lanthanides together with americium and curium. Our combined in vivo and in vitro results establish that methylotrophic bacteria can utilize actinides instead of lanthanides to sustain their one‐carbon metabolism if they possess the correct size and a +III oxidation state.

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Plutonium

Cited by 48 publications

References 886 publications

Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide

Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide

Recent progress in actinide borate chemistry

Minor Actinides Can Replace Essential Lanthanides in Bacterial Life**

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Plutonium

Cited by 48 publications

References 886 publications

Gas-Phase Coordination Complexes of UVIO22+, NpVIO22+, and PuVIO22+ with Dimethylformamide

Gas-Phase Coordination Complexes of UVIO22+, NpVIO22+, and PuVIO22+ with Dimethylformamide

Recent progress in actinide borate chemistry

Minor Actinides Can Replace Essential Lanthanides in Bacterial Life**

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Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide

Gas-Phase Coordination Complexes of U^VIO₂²⁺, Np^VIO₂²⁺, and Pu^VIO₂²⁺ with Dimethylformamide