NUCL 38 |
| Dioxocations of pentavalent and hexavalent actinides in solutions and solid compounds can enter into mutual coordination, referred to as cation-cation (CC) interaction. For the first time, such interaction was found in Np(V)-U(VI) perchlorate solutions in 1961 by J. C. Sullivan. The major part of the data on the structure and properties of actinide solid compounds with CC interactions has been obtained for Np(V). The CC interaction in Np(V) compounds results in formation of various patterns of CC bonds: cyclic, linear, bi-dimensional or three-dimensional. The most stable are chains of monodentate dioxocations and “square” cationic nets (both of them found also in Np(V) perchlorate compounds). The presence of CC interactions affects spectroscopic and other properties of the compounds. Recent studies carried out in the IPCE RAS show that at least two types of CC interactions are present in Pu(V) compounds. |
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A Life Well-spent in Actinide Science: Contributions of James C. Sullivan
8:30 AM-11:45 AM, Monday, April 7, 2008 Morial Convention Center -- Rm. 253, Oral
Division of Nuclear Chemistry & Technology |