Nao Yoshida

Nao Yoshida
Department of Chemistry, Graduate School of Science

I am interested in coordination chemistry of actinides and synthesizing uranium (IV) which has two electrons in 5f orbital complexes.

Since actinides do not have stable isotopes and are radioactive, it is difficult to handle them, and their coordination chemistry has not been searched thoroughly yet. Then I want to establish a way to evaluate the strength of metal-ligands interaction like d-block elements’ ligand field theory.

Focusing on the covalent nature of the bond between actinides and ligands, I've considered that it might be possible to synthesize polynuclear complexes with a mixed-valence state through bridging ligands. Among the actinide isotopes, I'm synthesizing complexes using uranium (IV), which is relatively easier to handle due to its long half-life and low-energy radiation. By observing the electronic and magnetic changes that accompany variations in the ligand's substituent groups, I believe I can establish a method to evaluate metal-ligand interactions in actinides.

ACTIVITY/ACHIEVEMENTS