Mostrando 1 - 20 Resultados de 32 Para Buscar 'neptunismo~', tiempo de consulta: 4.54s Limitar resultados
  1. 1
    “…Here, utilizing diphosphoniomethanide precursors we report the synthesis and characterization of transuranium-carbene derivatives, namely, diphosphonio-alkylidene- and N-heterocyclic carbene–neptunium(III) complexes that exhibit polarized-covalent σ(2)π(2) multiple and dative σ(2) single transuranium-carbon bond interactions, respectively. …”
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    Carbene Complexes of Neptunium
  2. 2
    “…The title compound, NpCuSe(2), is the first ternary neptunium transition-metal chalcogenide. It was synthesized from the elements at 873 K in an evacuated fused-silica tube. …”
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    Neptunium(III) copper(I) diselenide
  3. 3
    por Chotkowski, Maciej
    Publicado 2018
    “…Redox interaction of reduced technetium forms and technetium(VII) with neptunium(III), neptunium(IV) and neptunium(VI) have been investigated using electrochemical and spectroscopic (Vis–NIR) techniques. …”
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    Redox interactions of technetium with neptunium in acid solutions
  4. 4
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    In-source laser resonance ionization spectroscopy of neptunium and plutonium
  5. 5
    “…The synthesis of a tetravalent neptunium amidinate [NpCl((S)‐PEBA)(3)] (1) ((S)‐PEBA=(S,S)‐N,N′‐bis‐(1‐phenylethyl)‐benzamidinate) is reported. …”
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    Enantiomerically Pure Tetravalent Neptunium Amidinates: Synthesis and Characterization
  6. 6
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    Addendum - In-source laser resonance ionization spectroscopy of neptunium and plutonium
  7. 7
    “…Neptunium complexes in the formal oxidation states II, III, and IV supported by cyclopentadienyl ligands are explored, and significant differences between Np and U highlighted as a result. …”
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    Reduction chemistry of neptunium cyclopentadienide complexes: from structure to understanding
  8. 8
    Publicado 1990
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    International Symposium Festschrift 50th Anniversary of the Discovery of Neptunium and Plutonium
  9. 9
    por Harrison, K G, Hancock, I B
    Publicado 1978
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    A neptunium dosimeter and spark-counting system for routine personnel monitoring
  10. 10
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    Validation of Cross Sections with Criticality Experiment and Reaction Rates: the Neptunium Case
  11. 11
    “…Here, we show that the alphaproteobacterium Hyphomonas neptunium, which proliferates by bud formation at the tip of a stalk-like cellular extension, segregates its chromosomes in a unique two-step process. …”
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    Two-step chromosome segregation in the stalked budding bacterium Hyphomonas neptunium
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    Complexation and redox chemistry of neptunium, plutonium and americium with a hydroxylaminato ligand
  13. 13
    “…The structural data obtained at the uranium L(III)-edge and the neptunium L(III)-edge indicate the formation of bidentate edge-sharing surface complexes, which are known as the main sorption species on abiotic ferrihydrite. …”
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    Uranium and neptunium retention mechanisms in Gallionella ferruginea/ferrihydrite systems for remediation purposes
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    Correction to: Uranium and neptunium retention mechanisms in Gallionella ferruginea/ferrihydrite systems for remediation purposes
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    Covalent bond shortening and distortion induced by pressurization of thorium, uranium, and neptunium tetrakis aryloxides
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    Ion association with tetra-n-alkylammonium cations stabilizes higher-oxidation-state neptunium dioxocations
  17. 17
    “…Neptunium and plutonium were laser-ionized and extracted as 30-keV ion beams. …”
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    Production of neptunium and plutonium nuclides from uranium carbide using 1.4-GeV protons
  18. 18
    “…The cell design is presented together with in situ XAS measurements performed during neptunium redox reactions. Cycling experiments on the NpO(2) (2+)/NpO(2) (+) redox couple were applied to qualify the cell electrodynamics using XANES measurements and its ability to probe modifications in the neptunyl hydration shell in a 1 mol l(−1) HNO(3) solution. …”
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    X-ray absorption spectroscopy and actinide electrochemistry: a setup dedicated to radioactive samples applied to neptunium chemistry
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    First experiments on transmutation studies of iodine-129 and neptunium-237 using relativistic protons of 3.7 GeV
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    “…We have therefore investigated CtrA regulation in the morphologically complex stalked budding alphaproteobacterium Hyphomonas neptunium. Compared to relatives dividing by binary fission, H. neptunium shows distinct changes in the role and regulation of various pathway components. …”
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    Integrative and quantitative view of the CtrA regulatory network in a stalked budding bacterium
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