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Imberdis A, Lefèvre G, Thuéry P, Cantat T. Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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77
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Imberdis A, Lefèvre G, Thuéry P, Cantat T. Metal-Free and Alkali-Metal-Catalyzed Synthesis of Isoureas from Alcohols and Carbodiimides. Angew Chem Int Ed Engl 2018; 57:3084-3088. [DOI: 10.1002/anie.201711737] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/09/2018] [Indexed: 11/06/2022]
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78
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Thuéry P, Harrowfield J. Uranyl Ion Complexes with Chiral Malic and Citramalic, and Prochiral Citric and Tricarballylic Acids: Influence of Coligands and Additional Metal Cations. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701406] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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79
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Akther T, Islam M, Matsumoto T, Tanaka J, Thuéry P, Redshaw C, Yamato T. Synthesis and structure of a chiral areno-bridged [2.4]metacyclophane. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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80
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Thuéry P, Harrowfield J. Complexes of Uranyl Ions with Aromatic Di‐ and Tetracarboxylates Involving [Ni(bipy)
n
]
2+
(
n
= 2, 3) Counterions. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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81
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Thuéry P, Harrowfield J. Structural Consequences of 1,4-Cyclohexanedicarboxylate Cis/Trans Isomerism in Uranyl Ion Complexes: From Molecular Species to 2D and 3D Entangled Nets. Inorg Chem 2017; 56:13464-13481. [PMID: 29039945 DOI: 10.1021/acs.inorgchem.7b02176] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
trans-1,4-Cyclohexanedicarboxylic acid (t-1,4-chdcH2) or the commercially available mixture of the cis and trans isomers (c,t-1,4-chdcH2) has been used in the synthesis of a series of 14 uranyl ion complexes, all obtained under solvohydrothermal conditions, some in the presence of additional metal cations and/or 2,2'-bipyridine (bipy). With its two isomeric forms having very different shapes and its great sensitivity to the experimental conditions, 1,4-chdc2- appears to be suitable for the synthesis of uranyl ion complexes displaying a wide range of architectures. Under the conditions used, the pure trans isomer gives only the complexes [UO2(t-1,4-chdc)(H2O)2] (1) and [UO2(t-1,4-chdc)] (2), which crystallize as one- and two-dimensional (1D and 2D) species, respectively. Complexes containing either the cis isomer alone or mixtures of the two isomers in varying proportion were obtained from the isomer mixture. The neutral complexes [UO2(c-1,4-chdc)(DMF)] (3) and [UO2(c-1,4-chdc)(bipy)] (4) are 2D and 1D assemblies, respectively, while all the other complexes are anionic and include various counterions. [C(NH2)3]3[H2NMe2][(UO2)4(c-1,4-chdc)6]·H2O (5) crystallizes as a three-dimensional (3D) framework with {103} topology. While [H2NMe2]2[(UO2)2(c-1,4-chdc)2(t-1,4-chdc)]·DMF·2H2O (6) is a 1D ladderlike polymer, [H2NMe2]2[(UO2)2(c-1,4-chdc)(t-1,4-chdc)2]·2H2O (7), which differs in the cis/trans ratio, is a 3-fold 2D interpenetrated network with {63} honeycomb topology. The related [H2NMe2]2[(UO2)2(c,t-1,4-chdc)3]·2.5H2O (8), with one disordered ligand of uncertain geometry, is a 3-fold 3D interpenetrated system. The two isomorphous complexes [Co(bipy)3][(UO2)2(c-1,4-chdc)3]·1.5H2O (9) and [Cd(bipy)3][(UO2)2(c-1,4-chdc)3]·1.5H2O (10) form 3D frameworks with the {103} srs topological type. In contrast, [Ni(bipy)3]2[(UO2)4(c-1,4-chdc)2(t-1,4-chdc)(NO3)6]·2H2O (11) is a molecular, tetranuclear complex due to the presence of terminal nitrate ligands. A 2-fold 3D interpenetration of frameworks with {103} ths topology is observed in [Cu(bipy)2]2[(UO2)2(c-1,4-chdc)2(t-1,4-chdc)]·2H2O (12), while [Zn(bipy)3][(UO2)2(c-1,4-chdc)3]·4H2O (13) crystallizes as a 2D net with the common {4.82} fes topological type. The additional PbII cation is an essential part of the 3D framework formed in [UO2Pb2(c-1,4-chdc)(t-1,4-chdc)2(bipy)2] (14), in which uranyl and its ligands alone form 1D subunits. Together with previous results, the solid-state uranyl emission properties of seven of the present complexes evidence a general trend, with the maxima for the complexes with O6 equatorial environments being blue-shifted with respect to those for complexes with O5 environments.
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82
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Cantat T, Godou T, Chauvier C, Thuéry P. Iron-Catalyzed Silylation of Alcohols by Transfer Hydrosilylation with Silyl Formates. Synlett 2017. [DOI: 10.1055/s-0036-1591508] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
An iron catalyst is shown for the first time to promote transfer hydrosilylation with silyl formates and is utilized for the silylation of alcohols. Attractive features of this protocol include the use of an earth-abundant transition-metal catalyst, mild reaction conditions, and the release of gases as the only byproducts (H2 and CO2).
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83
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Loret B, Forget A, Moussy JB, Poissonnet S, Bonnaillie P, Collin G, Thuéry P, Sacuto A, Colson D. Crystal Growth and Characterization of HgBa 2Ca 2Cu 3O 8+δ Superconductors with the Highest Critical Temperature at Ambient Pressure. Inorg Chem 2017; 56:9396-9399. [PMID: 28796493 DOI: 10.1021/acs.inorgchem.7b01372] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report an original procedure for the elaboration of very high-quality single crystals of superconducting HgBa2Ca2Cu3O8+δ mercury cuprates. These single crystals are unique, with very high-quality surface paving the way for spectroscopic, transport, and thermodynamic probes in order to understand the hole-doped cuprate phase diagram. Annealing allows one to optimize Tc up to Tcmax = 133 K. The superconductivity transition width of about 2 K indicates that they are homogeneous. We show for the first time that, with adequate heat treatment, Hg-1223 can be largely underdoped and its doping level controlled. Importantly, the crystal structure was studied in detail by single-crystal X-ray diffraction, and we have identified the signature of the underdoping by a detailed sample characterization and micro-Raman spectroscopy measurements.
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84
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Thuéry P. Uranyl Complexes as Scaffolding or Spacers for Cucurbit[6]uril Molecules in Homo‐ and Heterometallic Species, Including a Uranyl–Lanthanide Complex. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700283] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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85
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Briois V, Cartier C, Momenteau M, Maillard P, Zarembowitch J, Dartyge E, Fontaine A, Tourillon G, Thuéry P, Verdaguer M. Spectroscopie d’absorption des rayons X au seuil K : complexes moléculaires du cobalt. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1989861623] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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86
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Akther T, Islam MM, Matsumoto T, Tanaka J, Thuéry P, Redshaw C, Yamato T. Synthesis and Structure of 1,2-Dimethylene[2.10]metacyclophane and Its Conversion into Chiral [10]Benzenometacyclophanes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601647] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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87
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Thuéry P, Harrowfield J. Complexation of Uranyl Ion with Sulfonates: One- to Three-Dimensional Assemblies with 1,5- and 2,7-Naphthalenedisulfonates. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601374] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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88
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Thuéry P, Harrowfield J. Coordination Polymers and Cage-Containing Frameworks in Uranyl Ion Complexes with rac- and (1R,2R)-trans-1,2-Cyclohexanedicarboxylates: Consequences of Chirality. Inorg Chem 2017; 56:1455-1469. [PMID: 28060503 DOI: 10.1021/acs.inorgchem.6b02537] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Racemic and enantiopure (1R,2R) forms of trans-1,2-cyclohexanedicarboxylic acid (H2chdc and R-H2chdc, respectively) have been used in the synthesis of a series of 13 uranyl ion complexes, all obtained under solvo-hydrothermal conditions and in the presence of additional metal cations and/or N-donor ligands. While the homometallic complex [UO2(R-chdc)] (1) was only obtained with the enantiopure ligand, complexes [UO2(chdc)(THF)] (2), [UO2(chdc)(DMF)] (3), and [UO2(chdc)(NMP)] (4), with a coordinated solvent molecule, were obtained from the racemic form only; all crystallize as two-dimensional (2D) assemblies. The two complexes [UO2(chdc)(bipy)](5) and [UO2(R-chdc)(bipy)] (6), where bipy is 2,2'-bipyridine, are isomorphous since 5 crystallizes as a racemic conglomerate; they are both one-dimensional (1D) homochiral, helical polymers. The heterometallic complexes [UO2Cu(chdc)2(bipy)(H2O)]·H2O (7) and [UO2Cu(R-chdc)2(bipy)]·3H2O (8) crystallize as a 1D or a 2D species, respectively, while [UO2Cd(R-chdc)2(H2O)2]·H2O (9) displays a 2D arrangement with the unusual Cairo pentagonal tiling topology. The four complexes [(UO2)2Na2(chdc)3(H2O)2] (10), [(UO2)2Ag2(chdc)3(H2O)2] (11), [(UO2)2Na2(R-chdc)3(H2O)2] (12), and [(UO2)2Pb(R-chdc)3(H2O)4] (13) are closely related, all of them containing tetranuclear, pseudotetrahedral [(UO2)4(chdc/R-chdc)6]4- cage motifs, that are assembled into a three-dimensional (3D) framework by bridging counterions (Na+, Ag+, or Pb2+). These cages define a new pathway to assembly of such species based on the unique coordination geometry of uranyl ion, differing from the widely exploited use of octahedral metal ions.
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89
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Wang CZ, Kihara R, Feng X, Thuéry P, Redshaw C, Yamato T. Synthesis, Structure and Photophysical Properties of Pyrene-based [5]Helicenes: an Experimental and Theoretical Study. ChemistrySelect 2017. [DOI: 10.1002/slct.201601327] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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90
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von Wolff N, Villiers C, Thuéry P, Lefèvre G, Ephritikhine M, Cantat T. Reactivity and Structural Diversity in the Reaction of Guanidine 1,5,7-Triazabicyclo[4.4.0]dec-5-ene with CO2
, CS2
, and Other Heterocumulenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601267] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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91
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Harrowfield J, Thuéry P. Lead(ii): Lewis acid and occasional base, as illustrated by its complex with 1,5-naphthalenedisulfonate and 5-methyl-1,10-phenanthroline. Dalton Trans 2017; 46:11533-11536. [DOI: 10.1039/c7dt01975k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Hydrogen bonding to lead(ii) evidences the Lewis base character of this cation due to its valence shell lone pair.
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92
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Thuéry P, Harrowfield J. Recent advances in structural studies of heterometallic uranyl-containing coordination polymers and polynuclear closed species. Dalton Trans 2017; 46:13660-13667. [DOI: 10.1039/c7dt03105j] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A survey is given of recent original structural results on heterometallic species incorporating uranyl ions, particularly with carboxylate ligands.
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93
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Thuéry P, Harrowfield J. The crystalline α,ω-dicarboxylate metal complex with the longest aliphatic chain to date: uranyl 1,15-pentadecanedioate. Dalton Trans 2017; 46:13677-13680. [DOI: 10.1039/c7dt03273k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A bilayer 2D network is formed in uranyl 1,15-pentadecanedioate, different from the species obtained with related ligands and bulkier counterions.
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94
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Chauvier C, Thuéry P, Cantat T. Silyl Formates as Surrogates of Hydrosilanes and Their Application in the Transfer Hydrosilylation of Aldehydes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607201] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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95
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Chauvier C, Thuéry P, Cantat T. Silyl Formates as Surrogates of Hydrosilanes and Their Application in the Transfer Hydrosilylation of Aldehydes. Angew Chem Int Ed Engl 2016; 55:14096-14100. [DOI: 10.1002/anie.201607201] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 08/29/2016] [Indexed: 11/10/2022]
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96
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Chauvier C, Thuéry P, Cantat T. Metal-free disproportionation of formic acid mediated by organoboranes. Chem Sci 2016; 7:5680-5685. [PMID: 30034706 PMCID: PMC6021958 DOI: 10.1039/c6sc01410k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 05/19/2016] [Indexed: 01/17/2023] Open
Abstract
In the presence of dialkylboranes, formic acid is converted to formaldehyde and methanol derivatives. This is the first example of formate disproportionation under metal-free conditions. Mechanistic studies highlight the role of transient borohydrides in the reduction of formates and this is further shown in transfer hydroboration for aldehyde reduction.
In the presence of dialkylboranes, formic acid can be converted to formaldehyde and methanol derivatives without the need for an external reductant. This reactivity, in which formates serve as the sole carbon and hydride sources, represents the first example of the disproportionation of formate anions under metal-free conditions. Capitalizing on both experimental and computational (DFT) mechanistic considerations, the role of transient borohydride is highlighted in the reduction of formates and this reactivity was further exemplified in the methylation of TMP (2,2,6,6-tetramethylpiperidine) and in the transfer hydroboration reactions for the reduction of aldehydes.
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97
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Akther T, Islam MM, Rahman S, Georghiou PE, Matsumoto T, Tanaka J, Thuéry P, Redshaw C, Yamato T. Synthesis, Structures and Conformational Studies of 1,2-Dimethyl[2.10]metacyclophan-1-enes. ChemistrySelect 2016. [DOI: 10.1002/slct.201600670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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98
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Thuéry P, Harrowfield J. Modulation of the Structure and Properties of Uranyl Ion Coordination Polymers Derived from 1,3,5-Benzenetriacetate by Incorporation of Ag(I) or Pb(II). Inorg Chem 2016; 55:6799-816. [PMID: 27322163 DOI: 10.1021/acs.inorgchem.6b01168] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of uranyl nitrate with 1,3,5-benzenetriacetic acid (H3BTA) in the presence of additional species, either organic bases or their conjugate acids or metal cations, has provided 12 new crystalline complexes, all but one obtained under solvo-hydrothermal conditions. The complexes [C(NH2)3][UO2(BTA)]·H2O (1) and [H2NMe2][UO2(BTA)] (2) crystallize as one- or two-dimensional (1D or 2D) assemblies, respectively, both with uranyl tris-chelation by carboxylate groups and hydrogen-bonded counterions but different ligand conformations. One of the bound carboxylate units is replaced by chelating 1,10-phenanthroline (phen) or 3,4,7,8-tetramethyl-1,10-phenanthroline (Me4phen) in the complexes [(UO2)3(BTA)2(phen)3]·4H2O (3) and [(UO2)3(BTA)2(Me4phen)3]·NMP·3H2O (4) (NMP = N-methyl-2-pyrrolidone), which are a 2D network with honeycomb topology and a 1D polymer, respectively. With silver(I) cations, [UO2Ag(BTA)] (5), a three-dimensional (3D) framework in which the ligand assumes various chelating/bridging coordination modes, and the aromatic ring is involved in Ag(I) bonding, is obtained. A series of seven heterometallic complexes results when lead(II) cations and N-chelating molecules are both present. The complexes [UO2Pb(BTA)(NO3)(bipy)] (6) and [UO2Pb2(BTA)2(bipy)2]·3H2O (7), where bipy is 2,2'-bipyridine, crystallize from the one solution, as 1D and 2D assemblies, respectively. The two 1D coordination polymers [UO2Pb(BTA)(HCOO)(phen)] (8 and 9), again obtained from the one synthesis, provide an example of coordination isomerism, with the formate anion bound either to lead(II) or to uranyl cations. Another 2D architecture is found in [(UO2)2Pb2(BTA)2(HBTA)(H2O)2(phen)2]·2H2O (10), which provides a possible example of a Pb-oxo(uranyl) "cation-cation" interaction. While [UO2Pb(BTA)(HCOO)0.5(NO3)0.5(Me2phen)] (11), where Me2phen is 5,6-dimethyl-1,10-phenanthroline, is a 1D assembly close to those in 6 and 8, [UO2Pb2(BTA)2(Me4phen)2] (12), obtained together with complex 4, crystallizes as a 2D network as a result of the high degree of connectivity provided by the chelating/bridging tricarboxylate ligand. Emission spectra measured in the solid state display vibronic fine structure attributable to uranyl luminescence (except for complex 5, in which emission is quenched), with variations in maxima positions associated with modifications of the uranyl ion environment.
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99
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von Wolff N, Lefèvre G, Berthet JC, Thuéry P, Cantat T. Implications of CO2 Activation by Frustrated Lewis Pairs in the Catalytic Hydroboration of CO2: A View Using N/Si+ Frustrated Lewis Pairs. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00421] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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100
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Thuéry P, Harrowfield J. Uranyl Ion Complexes with Long-Chain Aliphatic α,ω-Dicarboxylates and 3d-Block Metal Counterions. Inorg Chem 2016; 55:2133-45. [DOI: 10.1021/acs.inorgchem.5b02540] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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