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Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
Published on: April 27, 2017
Non-aqueous neptunium and plutonium redox behaviour in THF - access to a rare Np(iii) synthetic precursor
Scott A Pattenaude1, Nickolas H Anderson, Suzanne C Bart
1Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. gaunt@lanl.gov.
Abstract:
Solvent exchange of NpCl4(DME)2 with THF proceeds simply to yield NpCl4(THF)3, whereas PuCl4(DME)2 is unstable in THF, partially decomposing to the mixed valent [PuIIICl2(THF)5][PuIVCl5(THF)] salt. Reduction of NpCl4(THF)3 with CsC8 ultimately afforded NpCl3(py)4, the only example of a structurally characterized solvated Np(iii) halide. The method demonstrates a route to a well-defined Np(iii) starting material without the need to employ scarcely available Np metal.
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