New ligands for uranium complexation: A stable uranyl dimer bearing 2,6-diacetylpyridine dioxime

The synthesis, characterization, and stability study of the first uranium complex bearing 2,6-diacetylpyridine dioxime (dapdoH2) is reported. The dimeric complex [UO2(dapdoH)Cl]2 is stable in solution as shown by ESI-MS and NMR spectrometry, and its solid-state structure was further analyzed by X-ray crystallography, IR, Raman and luminescence studies.87