[3I04-07] Development of Extractant

[3I06] Photochemical Synthesis of Uranyl(VI)-Peroxo Complexes with Bis(phosphine oxide) Linker Ligands

*Yuta Okumura¹, Tomoyuki Takeyama¹, Koichiro Takao¹ (1. Tokyo Tech)

Keywords:Coordination chemistry, Uranyl(VI) ion, Peroxo complex, Photoreactivity

To intentionally obtain dinuclear uranyl(VI)-peroxo complexes through photochemically induced activation of O₂, we attempted to control the coordination structure around UO₂²⁺ by introducing linker-type bis(phosphine oxide) ligand. As a result, the uranyl(VI)-peroxo complexes were successfully synthesized, when dppeO ligand with an ethylene group was used. We have also confirmed that these uranyl(VI)-peroxo complexes are stably present in acetonitrile solution.