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Cyclopentadienyl coordination induces unexpected ionic Am−N bonding in an americium bipyridyl complex

Author

Listed:
  • Brian N. Long

    (Florida State University)

  • María J. Beltrán-Leiva

    (Florida State University)

  • Cristian Celis-Barros

    (Florida State University)

  • Joseph M. Sperling

    (Florida State University)

  • Todd N. Poe

    (Florida State University)

  • Ryan E. Baumbach

    (National High Magnetic Field Laboratory)

  • Cory J. Windorff

    (Florida State University
    New Mexico State University, MSC 3C)

  • Thomas E. Albrecht-Schönzart

    (Florida State University)

Abstract

Variations in bonding between trivalent lanthanides and actinides is critical for reprocessing spent nuclear fuel. The ability to tune bonding and the coordination environment in these trivalent systems is a key factor in identifying a solution for separating lanthanides and actinides. Coordination of 4,4′−bipyridine (4,4′−bpy) and trimethylsilylcyclopentadienide (Cp′) to americium introduces unexpectedly ionic Am−N bonding character and unique spectroscopic properties. Here we report the structural characterization of (Cp′3Am)2(μ − 4,4′−bpy) and its lanthanide analogue, (Cp′3Nd)2(μ − 4,4′−bpy), by single-crystal X-ray diffraction. Spectroscopic techniques in both solid and solution phase are performed in conjunction with theoretical calculations to probe the effects the unique coordination environment has on the electronic structure.

Suggested Citation

  • Brian N. Long & María J. Beltrán-Leiva & Cristian Celis-Barros & Joseph M. Sperling & Todd N. Poe & Ryan E. Baumbach & Cory J. Windorff & Thomas E. Albrecht-Schönzart, 2022. "Cyclopentadienyl coordination induces unexpected ionic Am−N bonding in an americium bipyridyl complex," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-021-27821-4
    DOI: 10.1038/s41467-021-27821-4
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    References listed on IDEAS

    as
    1. Joseph M. Sperling & Evan J. Warzecha & Cristian Celis-Barros & Dumitru-Claudiu Sergentu & Xiaoyu Wang & Bonnie E. Klamm & Cory J. Windorff & Alyssa N. Gaiser & Frankie D. White & Drake A. Beery & Ale, 2020. "Compression of curium pyrrolidine-dithiocarbamate enhances covalency," Nature, Nature, vol. 583(7816), pages 396-399, July.
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