Composition change of uranium perchlorates with organic ligands upon mechanochemical activation of exchange processes

Results of studies on the effect of mechanochemical activation of ligand exchange processes in uranyl perchlorate-dimethylsulfoxide are presented. Spectroscopic data show that mechanical activation of the exchange process in this system results in the replacement of H 2 O in the first coordination sphere of uranyl UO 2 2+ by DMSO to form nanocrystals with a defined ligand sphere. Possible factors governing the noted features are considered.