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

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• 作者：Dr. Justin N. Cross ; Dr. Joseph A. Macor ; Dr. Jeffery A. Bertke ; Dr. Maryline G. Ferrier ; Dr. Gregory S. Girolami ; Dr. Stosh A. Kozimor ; Joel R. Maassen ; Dr. Brian L. Scott ; Dr. David K. Shuh ; Dr. Benjamin W. Stein and Prof. Dr. S. Chantal E. Stieber
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：October 4, 2016
• 年：2016
• 卷：55
• 期：41
• 页码：12755-12759
• 全文大小：2387K
• ISSN：1521-3773

文摘

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[S₂P(^tBu₂C₁₂H₆)]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.