101
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Frogneux X, von Wolff N, Thuéry P, Lefèvre G, Cantat T. CO2
Conversion into Esters by Fluoride-Mediated Carboxylation of Organosilanes and Halide Derivatives. Chemistry 2016; 22:2930-4. [DOI: 10.1002/chem.201505092] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 01/02/2023]
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102
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Tlili A, Voituriez A, Marinetti A, Thuéry P, Cantat T. Synergistic effects in ambiphilic phosphino-borane catalysts for the hydroboration of CO2. Chem Commun (Camb) 2016; 52:7553-5. [DOI: 10.1039/c6cc02809h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The benefit of combining both a Lewis acid and a Lewis base in a catalytic system has been established for the hydroboration of CO2, using ferrocene-based phosphine, borane and phosphino-borane derivatives.
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103
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Thuéry P, Harrowfield J. Anchoring flexible uranyl dicarboxylate chains through stacking interactions of ancillary ligands on chiral U(vi) centres. CrystEngComm 2016. [DOI: 10.1039/c6ce00603e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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104
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Harrowfield J, Thuéry P. Charge Localisation in Heavy Alkali Metal Ion Complexes of 4,4'-Biphenyldicarboxylate. Aust J Chem 2016. [DOI: 10.1071/ch15691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Crystal structure determinations on the isomorphous RbI and CsI complexes of 4,4′-biphenyldicarboxylate have shown the carboxylate entities to be coordinated in an unusual fashion where both oxygen atoms are in a tetrahedral environment indicative of negative charge localisation on each. The metal ions also show a highly irregular form of six-coordination, while the biphenyl units are planar, seemingly as a result of attractive interactions between the ortho hydrogen atoms.
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105
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Thuéry P, Harrowfield J. Counter-ion control of structure in uranyl ion complexes with 2,5-thiophenedicarboxylate. CrystEngComm 2016. [DOI: 10.1039/c5ce02294k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various counterions containing d-block metal ions and N-donating chelators were used to generate one- and two-dimensional uranyl-2,5-thiophenedicarboxylate species, one of them displaying inclined polycatenation.
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106
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Aloisi A, Berthet JC, Genre C, Thuéry P, Cantat T. Complexes of the tripodal phosphine ligands PhSi(XPPh2)3(X = CH2, O): synthesis, structure and catalytic activity in the hydroboration of CO2. Dalton Trans 2016; 45:14774-88. [DOI: 10.1039/c6dt02135b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of Fe2+, Co2+and Cu+ions was explored with the ligands PhSi{CH2PPh2}3(1) and PhSi{OPPh2}3(2), so as to evaluate the impact of the electronic properties of the tripodal phosphorus ligands on the structure and reactivity of the corresponding complexes.
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Thuéry P, Harrowfield J. A New Form of Triple-Stranded Helicate Found in Uranyl Complexes of Aliphatic α,ω-Dicarboxylates. Inorg Chem 2015; 54:10539-41. [DOI: 10.1021/acs.inorgchem.5b02348] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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108
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Thuéry P, Harrowfield J. Two-dimensional assemblies in f-element ion (UO22+, Yb3+) complexes with two cyclohexyl-based polycarboxylates. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.05.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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109
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Thuéry P, Harrowfield J. Structural Variations in the Uranyl/4,4′-Biphenyldicarboxylate System. Rare Examples of 2D → 3D Polycatenated Uranyl–Organic Networks. Inorg Chem 2015; 54:8093-102. [DOI: 10.1021/acs.inorgchem.5b01323] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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110
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Thuéry P. Structural variations in terbium(III) complexes with 1,3-adamantanedicarboxylate and diverse co-ligands. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.01.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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111
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Thuéry P, Harrowfield J. Uranyl Ion Complexes with 1,1′-Biphenyl-2,2′,6,6′-tetracarboxylic Acid: Structural and Spectroscopic Studies of One- to Three-Dimensional Assemblies. Inorg Chem 2015; 54:6296-305. [DOI: 10.1021/acs.inorgchem.5b00596] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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112
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Frogneux X, Blondiaux E, Thuéry P, Cantat T. Bridging Amines with CO2: Organocatalyzed Reduction of CO2 to Aminals. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00734] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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113
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Thuéry P. Second‐Sphere Complexation of Thorium(IV) by Cucurbit[6]uril with Included Perrhenate Counterions – Crystal Structure and Hirshfeld Surface Analysis. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500171] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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114
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Chauvier C, Tlili A, Das Neves Gomes C, Thuéry P, Cantat T. Metal-free dehydrogenation of formic acid to H 2 and CO 2 using boron-based catalysts. Chem Sci 2015; 6:2938-2942. [PMID: 29308170 PMCID: PMC5655896 DOI: 10.1039/c5sc00394f] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/04/2015] [Indexed: 11/21/2022] Open
Abstract
The decomposition of formic acid to H2 and CO2 under metal-free conditions has been unveiled using dialkylborane derivatives as catalysts.
Formic acid is at the crossroads of novel sustainable energy strategies because it is an efficient H2 carrier. Yet, to date, its decomposition to H2 relies on metal-based catalysts. Herein, we describe the first metal-free catalysts able to promote the dehydrogenation of formic acid. Using dialkylborane derivatives, HCOOH is decomposed to H2 and CO2 in the presence of a base with high selectivity. Experimental and computational results point to the involvement of bis(formyloxy)borates as key intermediates in the C–H bond activation of a formate ligand.
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115
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Hervé A, Bouzidi Y, Berthet JC, Belkhiri L, Thuéry P, Boucekkine A, Ephritikhine M. U(III)-CN versus U(IV)-NC coordination in tris(silylamide) complexes. Inorg Chem 2015; 54:2474-90. [PMID: 25686295 DOI: 10.1021/acs.inorgchem.5b00034] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Treatment of the metallacycle [UN*2(N,C)] [N* = N(SiMe3)2; N,C = CH2SiMe2N(SiMe3)] with [HNEt3][BPh4], [HNEt3]Cl, and [pyH][OTf] (OTf = OSO2CF3) gave the cationic compound [UN*3][BPh4] (1) and the neutral complexes [UN*3X] [X = Cl (3), OTf (4)], respectively. The dinuclear complex [{UN*(μ-N,C)(μ-OTf)}2] (5) and its tetrahydrofuran (THF) adduct [{UN*(N,C)(THF)(μ-OTf)}2] (6) were obtained by thermal decomposition of 4. The successive addition of NEt4CN or KCN to 1 led to the formation of the cyanido-bridged dinuclear compound [(UN*3)2(μ-CN)][BPh4] (7) and the mononuclear mono- and bis(cyanide) complexes [UN*3(CN)] (2) and [M][UN*3(CN)2] [M = NEt4 (8), K(THF)4 (9)], while crystals of [K(18-crown-6)][UN*3(CN)2] (10) were obtained by the oxidation of [K(18-crown-6)][UN*3(CN)] with pyridine N-oxide. The THF adduct of 1, [UN*3(THF)][BPh4], and complexes 2-7, 9 and 10 were characterized by their X-ray crystal structure. In contrast to their U(III) analogues [NMe4][UN*3(CN)] and [K(18-crown-6)]2[UN*3(CN)2] in which the CN anions are coordinated to the metal center via the C atom, complexes 2 and 9 exhibit the isocyanide U-NC coordination mode of the cyanide ligand. This U(III)/U(IV) differentiation has been analyzed using density functional theory calculations. The observed preferential coordinations are well explained considering the electronic structures of the different species and metal-ligand bonding energies. A comparison of the different quantum descriptors, i.e., bond orders, NPA/QTAIM data, and energy decomposition analysis, has allowed highlighting of the subtle balance between covalent, ionic, and steric factors that govern the U-CN/NC bonding.
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Thuéry P, Rivière E, Harrowfield J. Uranyl and Uranyl–3d Block Cation Complexes with 1,3-Adamantanedicarboxylate: Crystal Structures, Luminescence, and Magnetic Properties. Inorg Chem 2015; 54:2838-50. [DOI: 10.1021/ic503004j] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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117
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Jewula P, Berthet JC, Chambron JC, Rousselin Y, Thuéry P, Meyer M. Synthesis and Structural Study of Tetravalent (Zr4+, Hf4+, Ce4+, Th4+, U4+) Metal Complexes with Cyclic Hydroxamic Acids. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403206] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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118
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Capra J, Gao B, Hemmery H, Thuéry P, Gall TL. Diastereoselective conjugate addition of (R)-4-phenyl-2-oxazolidinone to dialkyl alkylidenemalonates. ARKIVOC 2015. [DOI: 10.3998/ark.5550190.p008.925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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119
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Abstract
By using the cyanide ligand, actinide compounds with unprecedented structures, UIII–CN vs. CeIII–NC and UIII–CN vs. UIV–NC coordination modes, and novel high-valent uranium complexes were revealed.
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120
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Thuéry P, Harrowfield J. Solvent effects in solvo-hydrothermal synthesis of uranyl ion complexes with 1,3-adamantanediacetate. CrystEngComm 2015. [DOI: 10.1039/c5ce00401b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uranyl ion complexes with 1,3-adamantanediacetate display different topologies arising from variations in coordination mode and the presence of additional ligands.
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121
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Thuéry P, Harrowfield J. Uranyl Ion Complexes with
trans
‐3‐(3‐Pyridyl)acrylic Acid Including a Uranyl–Copper(II) Heterometallic Framework. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402556] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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122
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Savourey S, Lefèvre G, Berthet JC, Thuéry P, Genre C, Cantat T. Efficient Disproportionation of Formic Acid to Methanol Using Molecular Ruthenium Catalysts. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405457] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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123
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Savourey S, Lefèvre G, Berthet JC, Thuéry P, Genre C, Cantat T. Efficient Disproportionation of Formic Acid to Methanol Using Molecular Ruthenium Catalysts. Angew Chem Int Ed Engl 2014; 53:10466-70. [DOI: 10.1002/anie.201405457] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Indexed: 11/07/2022]
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124
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Hervé A, Bouzidi Y, Berthet JC, Belkhiri L, Thuéry P, Boucekkine A, Ephritikhine M. U–CN versus Ce–NC Coordination in Trivalent Complexes Derived from M[N(SiMe3)2]3 (M = Ce, U). Inorg Chem 2014; 53:6995-7013. [DOI: 10.1021/ic500939t] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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125
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Das Neves Gomes C, Blondiaux E, Thuéry P, Cantat T. Metal-free reduction of CO2 with hydroboranes: two efficient pathways at play for the reduction of CO2 to methanol. Chemistry 2014; 20:7098-106. [PMID: 24771681 DOI: 10.1002/chem.201400349] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Indexed: 11/10/2022]
Abstract
Guanidines and amidines prove to be highly efficient metal-free catalysts for the reduction of CO2 to methanol with hydroboranes such as 9-borabicyclo[3.3.1]nonane (9-BBN) and catecholborane (catBH). Nitrogen bases, such as 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (Me-TBD), and 1,8-diazabicycloundec-7-ene (DBU), are active catalysts for this transformation and Me-TBD can catalyze the reduction of CO2 to methoxyborane at room temperature with TONs and TOFs of up to 648 and 33 h(-1) (25 °C), respectively. Formate HCOOBR2 and acetal H2C(OBR2)2 derivatives have been identified as reaction intermediates in the reduction of CO2 with R2BH, and the first C-H-bond formation is rate determining. Experimental and computational investigations show that TBD and Me-TBD follow distinct mechanisms. The N-H bond of TBD is reactive toward dehydrocoupling with 9-BBN and affords a novel frustrated Lewis pair (FLP) that can activate a CO2 molecule and form the stable adduct 2, which is the catalytically active species and can facilitate the hydride transfer from the boron to the carbon atoms. In contrast, Me-TBD promotes the reduction of CO2 through the activation of the hydroborane reagent. Detailed DFT calculations have shown that the computed energy barriers for the two mechanisms are consistent with the experimental findings and account for the reactivity of the different boron reductants.
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