2013
DOI: 10.1002/ejic.201301258
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Molecular and Polymeric Uranyl and Thorium Complexes with Sulfonate‐Containing Ligands

Abstract: International audienceSix uranyl and one thorium(IV) cation complexes with ligands involving either only sulfonate or both sulfonate and carboxylate groups as complexing sites were obtained, mainly under hydrothermal conditions, and their crystal structures were determined. The uranyl ion complex with the 2-sulfobenzoate (2-SB2-) anion synthesized in the presence of pyridine, [pyH](4)[(UO2)(2)(2-SB)(2)O](2)center dot 4H(2)O (1), is a molecular, tetranuclear complex in which 2-SB2- is chelating through its two … Show more

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Cited by 30 publications
(23 citation statements)
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“…The linear chains appear stacked when viewed along the ab plane and are separated by 8.78 Å. Figure 1 (13), O(4)-Zn-O(4) 180.00 (11), N-Zn-N 180.00 (7), O(1)-Zn-O(1) 180.00(5); for 4: hydrogen bonds involving the uncoordinated oxygen atoms (O2, O3, and O5) of the sulfonato ligand and the hydrogen atoms of the pyridyl units. These interactions result in the transformation of the layered coordination assembly into a 3D supramolecular motif (Figure 3).…”
Section: Syntheses and Structural Studies Of 3-7mentioning
confidence: 99%
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“…The linear chains appear stacked when viewed along the ab plane and are separated by 8.78 Å. Figure 1 (13), O(4)-Zn-O(4) 180.00 (11), N-Zn-N 180.00 (7), O(1)-Zn-O(1) 180.00(5); for 4: hydrogen bonds involving the uncoordinated oxygen atoms (O2, O3, and O5) of the sulfonato ligand and the hydrogen atoms of the pyridyl units. These interactions result in the transformation of the layered coordination assembly into a 3D supramolecular motif (Figure 3).…”
Section: Syntheses and Structural Studies Of 3-7mentioning
confidence: 99%
“…Di-and trifunctional sulfonate groups anchored on organic spacers are well recognized as versatile ligands for coordination polymers and metal-organic frameworks. [1][2][3][4][5][6][7][8][9][10][11][12] Although they are structurally analogous to the phosphonates (RPO 3 2-), sulfonato ligands are weakly coordinating and, thus, function cooperatively with metal ions in primary or secondary spheres in the presence of coligands. Such bonding attributes have been utilized to construct coordination frameworks with diverse structural motifs.…”
Section: Introductionmentioning
confidence: 99%
“…Atom U1 is bound to one bridging oxo, one sulfonate and two µ 2 ‐bridging chloride anions, and to a water molecule, while atom U2 is bound to two bridging oxo and two chloride anions and a water molecule, both being thus in pentagonal bipyramidal environments. The resulting (UO 2 ) 4 Cl 4 O 2 moiety has previously been described, one example including uncoordinated CB6 molecules, and it is a particular case of the common (UO 2 ) 4 O 2 4+ motif, with diverse additional lateral donors, which has previously been obtained in particular with 2‐sulfobenzoate and CB6 as coligands. The U–O(µ 3 ‐oxo) bond lengths in 6 are in the range 2.207(4)–2.300(4) Å [average 2.26(4) Å] and the three U–O–U angles around this anion sum to 359.84°, indicating a nearly perfect planar geometry.…”
Section: Resultsmentioning
confidence: 96%
“…While larger sulfonated calixarenes are considered to be “uranophiles”, there is no structural information on the complexes involved or certainty as to how, or even if, the sulfonate groups coordinate to U VI . The aliphatic ethane‐1,2‐disulfonate gives crystalline uranyl ion complexes in which it is either doubly unidentate, or O,O′ ‐bridging bidentate, the latter coordination mode being seemingly preferred for methane‐ and ethanesulfonates, although tripodal O,O′,O′′ ‐coordination is also known in the former case . In contrast, the common trifluoromethanesulfonate anion is unidentate in all its uranyl complexes reported in the Cambridge Structural Database (CSD, Version 5.37) .…”
Section: Introductionmentioning
confidence: 99%
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