The crystal chemistry of uranium carboxylates

Loiseau, Thierry; Mihalcea, Ionut; Henry, Natacha; Volkringer, Christophe

doi:10.1016/j.ccr.2013.08.038

Cited by 361 publications

(360 citation statements)

References 293 publications

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“…Atoms U1 to U4 are arranged into a tetranuclear cluster around the two µ3-oxo anions O11 and O12, a very common motif in uranyl chemistry. 3 The coordination polyhedra of U1 and U2 share two edges with those of adjacent uranium atoms, while those of U3 and U4…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3][4][5] Both metallic and non-metallic cations have been used as the species to accompany uranyl ion but the former group has been the source of the greatest variety. This is in large part because a given metal ion can take different forms depending on its coligands, thus leading to functions varying from that of simple charge balance as an independent species interacting with the uranyl polymer through weak interactions (such as CH···O hydrogen bonds) only, through that of decoration of a uranyl polymer involving mostly only one or two coordination sites of the metal ion, to that of a bridging unit in a true heterometallic cluster or polymer.…”

Section: Introductionmentioning

confidence: 99%

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[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

Thuéry

Harrowfield

2018

Crystal Growth & Design

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contains discrete bis(µ3-oxo)-centered tetranuclear uranyl complexes, organized into columns and layers by extensive hydrogen bonding to the counterions. The discoidal shape, available axial coordination sites and hydrogen bond donor potential of these macrocyclic Ni II complexes make them efficient assembling agents in uranyl-organic coordination polymers. As often observed in the presence of d-block metal cations, uranyl luminescence is either completely or partially quenched in complexes 1 and 3, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

Thuéry

Harrowfield

2018

Crystal Growth & Design

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“…[1] Taking advantage of the interest in coordination polymers or metal-organic frameworks (MOFs), the crystallization of coordination complexes involving uranyl and carboxylic acid has seen a growing interest since a decade. [7][8][9] A part of this research is directly linked to environmental concern and could allow in identifying molecular organizations that could exist in soils or ground water. [4,[10][11][12] So far, the study dedicated to the crystallization of tetravalent uranium-based carboxylate complexes remains relatively rare.…”

Section: +mentioning

confidence: 99%

Solvothermal Synthesis of Tetravalent Uranium with Isophthalate or Pyromellitate Ligands

et al. 2015

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Three new coordination polymers bearing tetravalent uranium have been isolated with the O‐donor ligands such as isophthalate (1,3‐bdc) or pyromellitate (btec). The compounds 1 and 3 have been solvothermaly synthesized in N,N‐dimethylformamide (DMF). The crystal structure of U(1,3‐bdc)2(DMF) (1) is built up from discrete tricapped trigonal‐primastic UO9 units, for which one carbonyl oxygen atom from DMF is bound to uranium. The connection of the UO9 units with the isophthalate linkers occurs in a chelating and bidentate fashion and gives rise to the formation of a 3D framework, delimiting narrow channels running along the [101] direction. Upon heating, the DMF molecules are removed, generating the second phase U(1,3‐bdc)2 (2) compound, closely related to 1. Indeed, the coordination environment of uranium is reduced to eight with a distorted square‐antiprismatic geometry. This transition induces the relative shrinkage of the network (ΔV = 23 %). The structure of the compound U(btec)(DMF)2 (3) also exhibits a 3D framework composed of an isolated bicapped square‐antiprismatic UO10 unit, for which two carbonyl oxygen atoms from DMF are bonded to uranium. Pyromellitate ensures the connection of the UO10 units through the carboxylate arms in a chelating mode. This results in the formation of a network with diamond‐shaped channels, developed along the c axis and encapsulating the DMF molecules. In contrast to 1, no stable phase is observed upon removing the DMF species by heating.

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“…[1][2][3][4][5] The cations exploited in this way have been drawn from most possible types and include non-metal species such as protonated polypyridines, (alkyl)ammonium ions and phosphonium ions, as well as metal ions in various forms depending upon coligands that they may carry. For alkali metal cations, prediction of the ways in which they might influence a uranyl ion/ligand array is rendered particularly difficult by their variable coordination numbers and flexible coordination geometry.…”

Section: Introductionmentioning

confidence: 99%

Crown Ethers and Their Alkali Metal Ion Complexes as Assembler Groups in Uranyl–Organic Coordination Polymers with cis-1,3-, cis-1,2-, and trans-1,2-Cyclohexanedicarboxylates

Thuéry

Atoini

Harrowfield

2018

Crystal Growth & Design

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Alkali metal cations (Na + , K + ) and crown ether molecules (12C4, 15C5, 18C6) were used as additional reactants during the hydrothermal synthesis of uranyl ion complexes with cis/trans-1, 3-, cis-1,2-and trans-1,2-cyclohexanedicarboxylic acids (c/t-1,3-chdcH2, c-1,2-chdcH2 and t-1,2-chdcH2, respectively, the latter as racemic or pure (1R,2R) enantiomer). Oxalate anions generated in situ are present in all the six complexes isolated andand [(UO2)8K4(rac-t-1,2-chdc)4(C2O4)6(18C6)3(H2O)2] (6). In complex 1, the [UO2(H2O)5] 2+ counterions link the ladderlike uranyl-containing one-dimensional polymers and the uncomplexed crown ether molecules through hydrogen bonds. In all the other complexes, two-dimensional uranyl/chdc/oxalate subunits are formed, with topologies depending on the stoichiometry, in which the 1,2-chdc 2-ligands are bound to three uranium atoms, one of them chelated by the two carboxylate groups, and the oxalate ligands are bis-chelating. In complex 2, the Na(15C5) + cations are bound to one layer through double Na-carboxylate or Na-oxo cis-bonding and they are thus mere decorating groups. In contrast, the quasi-planar K(18C6) + groups in 3-6, partially affected by disorder, are generally transcoordinated to two uranyl oxo groups pertaining to different layers, thus uniting the latter into a three-dimensional framework.2

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The crystal chemistry of uranium carboxylates

Cited by 361 publications

References 293 publications

[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

Solvothermal Synthesis of Tetravalent Uranium with Isophthalate or Pyromellitate Ligands

Crown Ethers and Their Alkali Metal Ion Complexes as Assembler Groups in Uranyl–Organic Coordination Polymers with cis-1,3-, cis-1,2-, and trans-1,2-Cyclohexanedicarboxylates

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The crystal chemistry of uranium carboxylates

Cited by 361 publications

References 293 publications

[Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

[Ni(cyclam)]2+ and [Ni(R,S-Me6cyclam)]2+ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

Solvothermal Synthesis of Tetravalent Uranium with Isophthalate or Pyromellitate Ligands

Crown Ethers and Their Alkali Metal Ion Complexes as Assembler Groups in Uranyl–Organic Coordination Polymers with cis-1,3-, cis-1,2-, and trans-1,2-Cyclohexanedicarboxylates

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[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands

[Ni(cyclam)]²⁺ and [Ni(R,S-Me₆cyclam)]²⁺ as Linkers or Counterions In Uranyl–Organic Species with cis- and trans-1,2-Cyclohexanedicarboxylate Ligands