Comparing the 2,2'-Biphenylenedithiophosphinate Binding of Americium with Neodymium and Europium

Justin N Cross; Joseph A Macor; Jeffery A Bertke; Maryline G Ferrier; Gregory S Girolami; Stosh A Kozimor; Joel R Maassen; Brian L Scott; David K Shuh; Benjamin W Stein; S Chantal E Stieber

doi:10.1002/anie.201606367

Comparing the 2,2'-Biphenylenedithiophosphinate Binding of Americium with Neodymium and Europium

Angew Chem Int Ed Engl. 2016 Oct 4;55(41):12755-9. doi: 10.1002/anie.201606367. Epub 2016 Sep 15.

Authors

Affiliations

¹ Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
² University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
³ University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. ggirolam@illinois.edu.
⁴ Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. stosh@lanl.gov.
⁵ Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
⁶ California State Polytechnic University, Pomona, CA, 91768, USA.

PMID: 27629989
DOI: 10.1002/anie.201606367

Abstract

Advancing our understanding of the minor actinides (Am, Cm) versus lanthanides is key for developing advanced nuclear-fuel cycles. Herein, we describe the preparation of (NBu4 )Am[S2 P((t) Bu2 C12 H6 )]4 and two isomorphous lanthanide complexes, namely one with a similar ionic radius (i.e., Nd(III) ) and an isoelectronic one (Eu(III) ). The results include the first measurement of an Am-S bond length, with a mean value of 2.921(9) Å, by single-crystal X-ray diffraction. Comparison with the Eu(III) and Nd(III) complexes revealed subtle electronic differences between the complexes of Am(III) and the lanthanides.

Keywords: X-ray diffraction; actinides; americium; lanthanides; radiochemistry.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.