The single-crystal X-ray diffraction analysis of [UO2(SeO4)(C2H4N4)2] · 0.5H2O (I) is performed. The crystals are monoclinic: space group C2/c, Z = 8, a = 19.035(2), b = 7.1326(8), c = 21.477(2) Å, β = 109.683(4)°. The main structural units of the crystal are chains of [UO2(SeO4)(C2H4N4)2]. Compound I belongs to the crystal-chemical group AT3M 2 1 (A = UO 2 2+ , T3 = SeO 4 2− , M1 is a cyanoguanidine molecule) of the uranyl complexes. The chains are united into three-dimensional framework through hydrogen bonds involving the oxygen atoms of the selenate and uranyl groups, the nitrogen atoms of cyanoguanidine, and the hydrogen atoms of the cyanoguanidine or water molecules.
Russian Journal of Coordination Chemistry – Springer Journals
Published: Aug 6, 2006
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