Abstract
Double U(VI) phthalates with NH +4 , K+, and Cs+ ions in the outer sphere were synthesized. The X-ray phase analysis shows that their structures are similar. Single crystals were prepared and the structure of K4[(UO2)4(μ3-O)2(C6H4C2O4)4] ⋅ 3H2O was solved. In the [(UO2)4O2(C6H4C2O4)4]4− anions forming the main structural motif, each bridging oxygen atom μ3-O combines one pentagonal and two hexagonal bipyramids, which, in turn, are combined in centrosymmetrical tetramers. The phthalate ions have coordination capacity equal to 3; each ligand coordinates U(1) in the bidentate fashion via one carboxy group and U(2) in the bidentate fashion to form a planar seven-membered chelate ring.
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Translated from Radiokhimiya, Vol. 47, No. 3, 2005, pp. 219–223.
Original Russian Text Copyright © 2005 by Charushnikova, Krot, Polyakova, Makarenkov.
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Charushnikova, I.A., Krot, N.N., Polyakova, I.N. et al. Synthesis of Double Uranyl Phthalates of the M4[(UO2)4(μ3-O)2(C6H4C2O4)4] ⋅ nH2O Type with M = NH4, K, and Cs. Crystal Structure of K4[(UO2)4O2(C6H4C2O4)4] ⋅ 3H2O. Radiochemistry 47, 241–246 (2005). https://doi.org/10.1007/s11137-005-0080-z
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DOI: https://doi.org/10.1007/s11137-005-0080-z