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• W2531304082 abstract "(2R*,3R*,4S*,5S*)-Tetrahydrofurantetracarboxylic acid (H4thftc) has been used as a ligand to synthesize five uranyl ion complexes, three of them including additional silver(I) or lead(II) metal cations. The complex [C(NH2)3]2[UO2(H2thftc)2] (1), obtained in water at room temperature, is a discrete mononuclear species in which the uranyl cation is bound to the tridentate coordination site (involving the ether oxygen atom and the two adjoining carboxylate groups) of two ligands, and extensive hydrogen bonding is present. All the other complexes were obtained under (solvo)-hydrothermal conditions giving rise to higher degrees of ligand deprotonation. [(UO2)3(Hthftc)2(H2O)2]·2CH3CN (2) crystallizes as a two-dimensional (2D) network with the V2O5 topological type, whereas in the heterometallic complex [(UO2)3Ag2(thftc)2(H2O)2]·2H2O (3), similar 2D layers are assembled into a three-dimensional (3D) framework by bridging Ag2 moieties. Lead(II) replaces uranyl in the tridentate coordination site in the two complexes [UO2Pb(thftc)(H2O)] (4) and [UO2Pb(thftc)(H2O)2]·H2O (5), and the high connectivity of the ligand, bound to seven metal cations through diverse chelating and bridging interactions, ensures that both are 3D frameworks. Bonding of a uranyl oxo group to either silver(I) or lead(II) is apparent in complexes 3 and 5. The homometallic complexes [Ag3(Hthftc)] (6) and [Pb2(thftc)(H2O)] (7), devoid of uranyl cations, are both 3D frameworks in which the ligand is bound to 11 or 9 metal cations, respectively. Complex 6 is the single instance in this series in which the ligand, originally in the trans,cis,trans form, has undergone isomerization into the chiral cis,trans,trans (2R*,3S*,4S*,5S*) form through a process probably involving an ene-diol intermediate. Only complexes 1, 2, and 4 display intense and well-resolved emission bands under excitation at 420 nm in the solid state, the uranyl emission of complexes 3 and 5 being largely quenched." @default.
• W2531304082 created "2016-10-21" @default.
• W2531304082 creator A5059696902 @default.
• W2531304082 creator A5063941923 @default.
• W2531304082 date "2016-10-25" @default.
• W2531304082 modified "2023-10-13" @default.
• W2531304082 title "Tetrahydrofurantetracarboxylic Acid: An Isomerizable Framework-Forming Ligand in Homo- and Heterometallic Complexes with UO₂²⁺, Ag⁺, and Pb²⁺" @default.
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• W2531304082 doi "https://doi.org/10.1021/acs.cgd.6b01312" @default.
• W2531304082 hasPublicationYear "2016" @default.
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