Synthesis and physicochemical investigation of UO2XO2·2CH3CON(CH3)2 (X - S, Se, Cr)

UO2XO4·2 (X = S, Se or Cr; L = N,N-dimethyl acetamide) are produced by the method of isothermal evaporation, and their X-ray diffraction and thermodiffraction investigations are carried out. The belonging of the synthesized compounds to the crystallochemical group of AT11M21 complexes of uranyl is established, and peculiarities of their crystal structure are discussed. 3 refs.; 1 fig.; 2 tabs