A Lanthanide Ion-Decorated Uranyl−Organic Two-Dimensional Assembly with all-cis 1,2,3,4,5,6-Cyclohexanehexacarboxylic Acid
Crystal Growth & Design2010Vol. 10(5), pp. 2061–2063
Citations Over TimeTop 10% of 2010 papers
Abstract
The reaction of an equimolar mixture of uranyl and lanthanide nitrates with all-cis 1,2,3,4,5,6-cyclohexanehexacarboxylic acid (H6L) under hydrothermal conditions gives the isomorphous complexes [UO2Ln(HL)(H2O)7]·H2O (Ln = Pr, Eu, Tb, Er), which are rare examples of uranyl−lanthanide heterometallic species. The three carboxylate groups in equatorial positions on the cyclohexane ring are bound to uranyl ions, thus generating a (63) hexagonal two-dimensional network. One of the carboxylate groups in an axial position chelates the [Ln(H2O)7]3+ group, resulting in the sheets being decorated by lanthanide ions on both sides.
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