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Showing 1–7 of 7 results
Advanced filters: Author: T. E. Albrecht-Schmitt Clear advanced filters

  • The heavy fermion compound URu2Si2displays a hidden order phase and superconductivity at low temperatures. Here, the authors perform substitution studies—partially replacing silicon with phosphorus—and study the effects on hidden order and superconductivity.

    • A. Gallagher
    • K.-W. Chen
    • R. E. Baumbach
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-5

  • The study of rare isotopes is hampered by their scarcity, cost and sometimes toxicity. Now polyoxometalate ligands have been shown to facilitate the capture of f-block elements and their characterization. Single-crystal X-ray diffraction structures have been obtained for several molecular complexes, including three of the rare curium-248, from minute amounts (micrograms) of material.

    • Ian Colliard
    • Jonathan R. I. Lee
    • Gauthier J.-P. Deblonde
    Research
    Nature Chemistry
    Volume: 14, P: 1357-1366

  • The chemistry of the post-plutonium actinides is thought to resemble lanthanides in that bonding is primarily ionic. Here, the authors show that a californium(III) complex displays significantly different properties to those predicted for the free ion owing to a second break in actinide periodicity.

    • Samantha K. Cary
    • Monica Vasiliu
    • Thomas E. Albrecht-Schmitt
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • Actinides generally form ionic compounds, however, when electron-rich ligands with large hyperpolarizabilities are used, partially covalent bonds can also form. Now a rare californium borate is shown to exhibit significant differences from other f-elements in its structure and bonding. Quantum mechanical calculations support Cf and ligand orbital interactions, also indicating partial covalent bonding.

    • Matthew J. Polinski
    • Edward B. Garner III
    • Thomas E. Albrecht-Schmitt
    Research
    Nature Chemistry
    Volume: 6, P: 387-392

  • Unlike in the d block, intervalence charge transfer is rare in the 5f block owing to localized valence electrons and poor overlap between metal and ligand orbitals. Delocalization of 5f electrons has now been observed in a Pu(III)/Pu(IV)–pyridinedicarboxylate solid-state compound. It occurs through metal-to-ligand charge transfer with both plutonium centres.

    • Samantha K. Cary
    • Shane S. Galley
    • Thomas E. Albrecht-Schmitt
    Research
    Nature Chemistry
    Volume: 9, P: 856-861

  • The obtention and study of actinide elements is challenging due to various factors including their radioactivity and scarcity. Herein, the authors characterize the atomic and electronic structure of Am, Cm, Bk, and Cf compounds using a transmission electron microscopy-based workflow that only requires nanogram amounts of the actinide element.

    • Alexander Müller
    • Gauthier J.-P. Deblonde
    • Andrew M. Minor
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6