Synthesis and investigation of uranylphosphates, uranylarsenanes, and uranylvanadates of lanthanides

Currently compounds Ak(BVUO6)k-m(OH)m·nH2O (Ak - Y, La-Lu, BV -P, As, V) are of interest as the possible mineral-like forms of linkage in an environment of uranium and radioactive isotopes of lanthanides of an artificial origin, as modeling systems for study of similar compounds of six-valence neptunium and plutonium, and as objects, suitable for allocation and division lanthanides and actinides. In order to determine a role of water molecules in the formation of the crystal structure of inorganic hydrates and processes of dehydration uranium minerals with the general formula Ak(BVUO6)k-m(OH)m·nH2O and their synthetic analogues (Ak one-, two- and three-valent elements, BV- elements of the fifth group of Periodic system) are rather convenient objects. (authors)