Uranyl Ion Complexes with Cucurbit[5]uril: from Molecular Capsules to Uranyl-Organic Frameworks
作者： Thuéry
DOI: 10.1021/CG8011603
关键词: Uranium trioxide 、 Alkali metal 、 Hydroxide 、 Uranyl 、 Inorganic chemistry 、 Formate 、 Formic acid 、 Perrhenic acid 、 Uranyl nitrate 、 Medicinal chemistry 、 Chemistry
摘要: Uranium trioxide UO3 reacts with cucurbit[5]uril (CB5) under hydrothermal conditions and in the presence of perrhenic acid to give [UO2(CB5)](ReO4)2·2H2O (1) which uranyl ion is encompassed by five oxygen atoms one CB5 portal, giving an open molecular capsule. When nitrate reacted alkali metal salts, mixed capsules, capped at portal K+ or Cs+ other, are obtained either as discrete dicationic species [UO2(CB5)K(NO3)][UO2(NO3)4]·H2O (2) part pentanuclear assemblages {[UO2(CB5)Cs(NO3)]2[UO2(NO3)4]}[UO2(NO3)4]·2H2O (3). Finally, reaction KOH CsOH, addition formic acid, resulted formation compounds [K2(CB5)(H2O)][(UO2)2(HCOO)(OH)4]2·6H2O (4) [Cs2(CB5)(H2O)2][(UO2)2(HCOO)(OH)4]2·3H2O (5). In these cases, ions separated from form a uranyl/formate/hydroxide two-dimensional assemblage; capsules Cs...
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