Crystal Structure of (H3O)2[(UO2)2(SeO4)3(H2O)2](H2O)3.5 |
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| Authors: | S. V. Krivovichev and V. Kahlenberg |
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| Affiliation: | (1) St. Petersburg State University, St. Petersburg, Russia;(2) Innsbruck University, Innsbruck, Austria |
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| Abstract: | Crystals of (H3O)2[(UO2)2(SeO4)3(H2O)2](H2O)3.5 were prepared from aqueous solutions by evaporation. The crystal structure [monoclinic system, space group P21/m, a = 11.9402(11), b = 13.6452(14), c = 13.7271(12) Å, β = 109.436(7)°, V = 2109.1(3) Å3] was solved by the direct method and refined to R 1 = 0. 048 (wR 2 = 0. 082) for 3677 reflections with |F hkl |F hkl |. The structure consists of [(UO2)2(SeO4)3(H2O)2]2− layers arranged parallel to the (010) plane. The layers are formed by uranium and selenium coordination polyhedra sharing common vertices and are linked with each other by hydrogen bonds through the H2O and H3O+ groups arranged between the layers. __________ Translated from Radiokhimiya, Vol. 47, No. 5, 2005, pp. 412–414. Original Russian Text Copyright ? 2005 by Krivovichev, Kahlenberg. |
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