-1 , indicating that the dioxygen moieties are bonded on "side-on" fashion with the U(VI). The magnetic moment values indicated that these complexes were diamagnetic in nature suggesting no changes in the oxidation states of the metal ions upon complexation. These data also consistent with eight fold coordination of U(VI). The electronic spectral data of the complexes showed bands in between 315-380 nm due to the charge transfer band only.