The uranium(IV) complexes with 8-quinolinol and 5,7-dihalo-8-quinolinols

Abstract The preparation of the 5:1 uranium(IV) complexes of 8-quinolinol, 5,7-dibromo-, and 5,7-dichloto-8-quinolinol is presented. By the use of thermogravimetric analysis, differential thermal analysis, and ultraviolet, visible, and infrared absorption spectroscopy, it was shown that the resulting complexes were similar to the thorium(IV) analogues of these chelating agents. It does not appear to be possible to prepare the unsolvated, 4:1, uranium(IV) complexes.