Nuclear magnetic resonance spectroscopy of aqueous plutonium(IV) desferrioxamine B complexes

Mark A. Boggs, Harris Mason, Yuji Arai, Brian A. Powell, Annie B. Kersting, Mavrik Zavarin

Research output: Contribution to journalArticlepeer-review

Abstract

Two aqueous PuIV-desferrioxamine B (DFOB) complexes were characterized by one- and two-dimensional NMR techniques and an unexpected dimeric PuIVDFOB-di-μ-(O/OH)-PuIVDFOB complex was identified. Both "Curie" and "anti-Curie" behavior were observed for the dimeric species, yet the monomeric species only showed "anti-Curie" behavior. Diffusion ordered spectroscopy experiments showed an increase in particle size for the two species, which is indicative of a dimeric species. Bond lengths and coordination numbers estimated from X-ray absorption spectroscopy are consistent with the proposed structures. Two aqueous PuIV-desferrioxamine B (DFOB) complexes were characterized by 1D and 2D NMR techniques and a dimeric PuIVDFOB-di-μ-(O/OH)-Pu IVDFOB complex was identified. Both "Curie" and "anti-Curie" behavior were observed for the dimeric species, yet the monomer only showed "anti-Curie". Bond lengths and coordination numbers estimated from X-ray spectroscopic analysis support the proposed structures.

Original languageEnglish (US)
Pages (from-to)3312-3321
Number of pages10
JournalEuropean Journal of Inorganic Chemistry
Issue number21
DOIs
StatePublished - Jul 2014

Keywords

  • Biomass
  • Environmental chemistry
  • NMR spectroscopy
  • Plutonium
  • Siderophores

ASJC Scopus subject areas

  • Inorganic Chemistry

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