Syntheses, structures, and spectroscopic properties of plutonium and americium phosphites and the redetermination of the ionic radii of Pu(III) and Am(III)

Justin N. Cross, Eric M. Villa, Shuao Wang, Juan Diwu, Matthew J. Polinski, Thomas E. Albrecht-Schmitt

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

A series of isotypic rare earth phosphites (RE = Ce(III), Pr(III), Nd(III), Pu(III), or Am(III)) with the general formulas RE 2(HPO 3) 3(H 2O) along with a Pu(IV) phosphite, Pu[(HPO 3) 2(H 2O) 2], have been prepared hydrothermally via reactions of RECl 3 with phosphorous acid. The structure of RE 2(HPO 3) 3(H 2O) features a face-sharing interaction of eight- and nine-coordinate rare earth polyhedra. By use of the crystallographic data from the isotypic series along with data from previously reported isotypic series, the ionic radii for higher coordinate Pu(III) and Am(III) were calculated. The VIIIPu(III) radius was calculated as 1.112 ± 0.004 Å, and the IXPu(III) radius was calculated to be 1.165 ± 0.002 Å. The VIIIAm(III) radius was calculated as 1.108 ± 0.004 Å, and the IXAm(III) radius was calculated as 1.162 ± 0.002 Å.

Original languageEnglish (US)
Pages (from-to)8419-8424
Number of pages6
JournalInorganic Chemistry
Volume51
Issue number15
DOIs
StatePublished - Aug 6 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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