title: Comparing the 2,2'-Biphenylenedithiophosphinate Binding of Americium with Neodymium and Europium.
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.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Justin N
authors.initials: JN
authors.lastname: Cross
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.|University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Macor
authors.affiliation: University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
authors.forename: Jeffery A
authors.initials: JA
authors.lastname: Bertke
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Maryline G
authors.initials: MG
authors.lastname: Ferrier
authors.affiliation: University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. ggirolam@illinois.edu.
authors.forename: Gregory S
authors.initials: GS
authors.lastname: Girolami
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. stosh@lanl.gov.
authors.forename: Stosh A
authors.identifier: 0000-0001-7387-0507
authors.initials: SA
authors.lastname: Kozimor
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Joel R
authors.initials: JR
authors.lastname: Maassen
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Brian L
authors.initials: BL
authors.lastname: Scott
authors.affiliation: Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
authors.forename: David K
authors.initials: DK
authors.lastname: Shuh
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Benjamin W
authors.initials: BW
authors.lastname: Stein
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.|California State Polytechnic University, Pomona, CA, 91768, USA.
authors.forename: S Chantal E
authors.initials: SC
authors.lastname: Stieber
keywords: X-ray diffraction; actinides; americium; lanthanides; radiochemistry