作者:L. B. Serezhkina、A. V. Vologzhanina、A. G. Verevkin、V. N. Serezhkin
DOI:10.1134/s1066362211040023
日期:2011.8
An X-ray diffraction study of Rb[UO2(SeO4)F]center dot H2O (I) was performed. The compound crystallizes in the rhombic system with the following unit cell parameters: a = 8.4753(6), b = 13.5234(9), c = 13.5296(9) angstrom, space group Pnma, Z = 8, V = 1550.7(2) angstrom(3); R = 0.0248. The principal structural units of crystals of I are [UO2(SeO4)F](-) layers belonging to crystal-chemical group AT(3)M(2) (A = UO22+, T-3 = SeO42-, M-2 = F-) of uranyl complexes. The uranium-containing layered units are combined via electrostatic interaction with Rb cations and via a system of hydrogen bonds involving outer-sphere water molecules.