Crystal structures of the dicyclohexyl-(18-crown-6) uranyl perchlorate complex and of its hydrolysis product |
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| Authors: | A Navaza F Villain P Charpin |
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| Institution: | Faculté de Pharmacie, 92290 Chatenay Malabry, France;Commissariat à l''Energie Atomique, Département de Physico-Chimie, 91 Saclay, France |
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| Abstract: | The structures of dicyclohexyl-(18-crown-6) uranyl perchlorate, (C20H36O6)UO2] (ClO4)2 (complex I) and of dicyclohexyl-(18-crown-6) uranyl hydroxyperchlorate C20H36O6]3 (UO2)2(H2O)6] · (ClO4)2, CH3CN, (complex II) have been determined from three dimension X-ray diffraction data.The uranyl group is directly coordinated to the oxygen atoms of the polyether ring in complex I; its hydrolysis (complex II) leads to a dimerization of the uranyl ions by sharing two OH groups with an U-U distance of only 3.827(8) Å. The polyether molecules are connected by hydrogen bonds with the dimeric ion (UO2)2 (OH)2 (H2O)6]2+. |
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| Keywords: | Author to whom correspondence should be addressed |
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