Abstract:
PREPARATION AND CHARACTERIZATION OF THECOMPLEZES OF THORIUM AND BISPLACED CROWN ETHERSDONG WENKUI(Department of Environmental Engineering,Lanzhou Radway Institute,Lanzhou 730070)ABSTRACT The new solid complexes of hydrated thorium nitrate with 4′,5′-dibromobenzo- 1 5-crown-5and 4′- bromo-5′- nitrobenzo-1 5-crown-5 are prepared in tetrahydrofuran medium,and character-ized by the element analysis,IR spectrum,TG-DTA,X-ray powder diffraction analvsis.Theeffects of KBr-pressed-disk and Nujol Mull technique on the infrared spectra of the complexes arediscussed.Key words Thorium Crown ether Complex