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Filling the equatorial garland of uranyl ion: its content and limitations |
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| Authors: | Atoini Youssef Harrowfield Jack Kim Yang Thuéry Pierre |
| Institution: | 1.ISIS, Université de Strasbourg, 8 allée Gaspard Monge, 67083, Strasbourg, France ;3.Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan ;4.Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France ; |
| Abstract: | Crystal structure determinations on the uranyl ion complexes H2N(CH3)2]2UO2(bpdc)2], (1), (bpdc?=?2,2′-bipyridine-3,3′-dicarboxylate), pyH]2UO2(btfac)(NO3)2](NO3), (2), (btfac?=?1-phenyl-4,4,4-trifluorobutane-1,3-dionate), H2dabco]UO2(nta)]2·3H2O, (3), (dabco?=?1,4-diazabicyclo2.2.2]octane; nta?=?nitrilotriacetate) and Ni(cyclam)UO2(edta)].2H2O, (4), (cyclam?=?1,4,8,11-tetrazacyclotetradecane; edta?=?ethylenediaminetetraacetate) have provided further examples of U(VI) in tetragonal-, pentagonal and hexagonal-bipyramidal coordination environments. Consideration of each structure within the context of those of known relatives has been used to assess the influence of factors in addition to repulsions within the primary coordination sphere on the equatorial coordination number of U(VI). |
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