Crystal structure of M{sub 4}[(UO{sub 2}){sub 2}C{sub 2}O{sub 4}(SO{sub 4}){sub 2}(NCS){sub 2}] (M = K{sup +}, Rh{sup +}) and K{sub 4}[(UO{sub 2}){sub 2}C{sub 2}O{sub 4}(SeO{sub 4}){sub 2}(NCS){sub 2}]
- Samara State University (Russian Federation)
- Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation)
Three heteroacidoligand uranyl complexes M{sub 4}[(UO{sub 2}){sub 2}C{sub 2}O{sub 4}(SO{sub 4}){sub 2}(NCS){sub 2}] (M = K{sup +} (I), Rb{sup +} (II)) and K{sub 4}[(UO{sub 2}){sub 2}C{sub 2}O{sub 4}(SeO{sub 4}){sub 2}(NCS){sub 2}] (III) have been synthesized and their crystal structure has been determined by X-ray diffraction analysis. The compounds I-III are isostructural and crystallized in the monoclinic system, sp. gr. P2{sub 1}/c, Z = 2, a = 11.5548(3) A, b = 7.0847(1) A, c = 13.5172(3) A, {beta} = 93.130(1){sup o}, V = 1104.90(4), R = 0.015 (I); a = 11.5854(9) A, b = 7.3841(6) A, c = 13.9072(9) A, {beta} = 95.754(3){sup o}, V = 1183.74(15), R = 0.0235 (II); a = 11.6715(3) A, b = 7.1418(2) A, c = 13.8546(1) A, {beta} = 93.539(1){sup o}, V = 1152.66(5), R = 0.0126 (III). Basic structural units of these crystals are [(UO{sub 2}){sub 2}C{sub 2}O{sub 4}(XO{sub 4}){sub 2}(NCS){sub 2}]{sup 4-} chains, which belong to the crystallochemical group A{sub 2}K{sup 02}B{sub 2}{sup 2}M{sub 2}{sup 1} (A = UO{sub 2}{sup 2+}, K{sup 02} = C{sub 2}O{sub 2-}{sup 4}, B{sup 2} = SO{sub 4}{sup 2-} or SeO{sub 4}{sup 2-}, M{sup 1} = NCS{sup -}) of uranyl complexes. Uranium-containing chains are connected into a 3D framework via a system of electrostatic interactions with potassium or rubidium cations from outer spheres.
- OSTI ID:
- 22050973
- Journal Information:
- Crystallography Reports, Vol. 53, Issue 3; Other Information: Copyright (c) 2008 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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