Spectroscopic and Structural Elucidation of Uranium
Dioxophenoxazine Complexes
- Publication date
- Publisher
Abstract
Uranium
derivatives of a redox-active, dioxophenoxazine ligand, (DOPO<sup>q</sup>)<sub>2</sub>UO<sub>2</sub>, (DOPO<sup>sq</sup>)UI<sub>2</sub>(THF)<sub>2</sub>, (DOPO<sup>cat</sup>)UI(THF)<sub>2</sub>, and Cp*U(DOPO<sup>cat</sup>)(THF)<sub>2</sub> (DOPO = 2,4,6,8-tetra-<i>tert</i>-butyl-1-oxo-1<i>H</i>-phenoxazin-9-olate), have been synthesized
from U(VI) and U(III) starting materials. Full characterization of
these species show uranium complexes bearing ligands in three different
oxidation states. The electronic structures of these complexes have
been explored using <sup>1</sup>H NMR and electronic absorption spectroscopies,
and where possible, X-ray crystallography and SQUID magnetometry
