Synthetic and Structural Studies of Dioxouranium(VI) Complexes of Dimethyl Ester of Pyridine-2,6-Dicarboxylic Acid

Abstract

A series of dioxouranium(VI) complexes has been synthesised

with an ester ligand, namely pyridine-2,6-dicarboxylic acid

dimethyl ester (PDA). They are characterized by elemental analyses,

conductivity measurements, molecular weight measurements and

IR studies, to have the general composition UO₂X₂·(PDA)₂

(X = Br^–, I^– NCS^–, ClO^–₄ and NO^–₃). The infrared spectral studies

indicate that the ligand is coordinating to the metal ion through

carbonyl oxygen atoms and Pyridine ring nitrogen atom. NMR

spectral studies of the ligand and one of the representative complexes

has also been studied.