Preparation and infrared spectroscopic characterization of some (oxy-diacetato)uranyl(VI) complexes

Abstract

Polymeric complexes, [UO₂(oda)]_n(oda = oxydiacetate, O₂CCH₂OCH₂CO₂^2–, n=∞), have been prepared, from the reaction of uranyl(VI) ions and oxydiacetic acid or its disodium salt, and characterized, mainly by i.r. spectroscopy. The complex Na₂[UO₂(oda)₂],nH₂O (n= 2 or 3) was obtained when an excess of the ligand was used in the reaction. In the presence of pyridine N-oxide(Opy), both monomeric [UO₂(oda)(Opy)₂] and polymeric [UO₂(oda)-(Opy)]_n(n=∞) complexes were obtained.