Capitalizing on Differing Coordination Environments and Redox Potentials to Prepare an Ordered Heterobimetallic U~(VI)/Np~(IV) Diphosphonate

摘要

The fine-tuning of both polymer-grafted and soluble phos-phonates has played an essential role in the development of actinoid separation processes that are a critical feature of nuclear fuel cycles. Despite the unusual nature of actinoid phosphonate interactions, which are strong even at low pH values, little is known about actinoid phosphonates in the solid-state outside of uranyl compounds, which are reasonably well represented. In fact, it is from the uranyl phosphonate system that the first indications came that uranyl compounds could adopt nanotubular structures. Reports on the structural chemistry and physical properties of transuranium phosphonates have only appeared in the last year, and this work needs considerable expansion.