Tetraoxalato- and tetracarbonato-μ-peroxodiuranylates

Efficiency of application of the principle of ligand redistribution for the synthesis of compounds with bridge peroxogroup is shown. According to the method the following compounds are synthesized: Na6[(UO2)2(O2)(C2O4)4]x6H2O; K6[(UO2)2(O2)(C2O4)4x3H2O; Rb6[(UO2)2(O2)(C2O4)4]x5H2O; [(NH3)2C2H4]3[(UO2)2xO2(C2O4)4]xH2O; (CN3H6)4[(UO2)2(O2)(C2O4)3]xH2O; K6[(UO2)2(O2)(CO3)4]x5H2O; (CN3H6)6[(UO2)2(O2)(CO3)4x4H2O. On the basis of IR spectroscopy data bidentate cyclic coordination of oxalato- and carbonatogroups in the complexes is established. In (CN3H6)4[(UO2)2(O2)(C2O4)3xH2O compound oxalatogroups are coordinated differently. Data of thermogravimetric analysis for the complexes synthesized are presented