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Rudel SS, Deubner HL, Müller M, Karttunen AJ, Kraus F. Complexes featuring a linear [N≡U≡N] core isoelectronic to the uranyl cation. Nat Chem 2020; 12:962-967. [DOI: 10.1038/s41557-020-0505-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 06/05/2020] [Indexed: 11/09/2022]
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2
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Chan EJ, Cotton SA, Harrowfield JM, Skelton BW, Sobolev AN, White AH. Polypyridines, Picrates, Lanthanides: A Plethora of Stacks? Aust J Chem 2020. [DOI: 10.1071/ch19367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Reactions of the lanthanide(iii) picrates (picrate=2,4,6-trinitrophenoxide=pic) with 1,10-phenanthroline (phen) and 2,2′:6′,2′′-terpyridine (terpy) in a 1:2 molar ratio have provided crystals suitable for X-ray structure determinations in instances predominantly involving the lighter lanthanides. In all, the aza-aromatic ligands chelate the lanthanide ion, none being found as ‘free’ ligands within the lattice. The complexes of 1,10-phenanthroline have been characterised in two forms, one unsolvated (Ln=La, Sm, Eu; monoclinic, C2/c, Z 8), one an acetonitrile monosolvate (Ln=Gd; monoclinic, P21/a, Z 4), the latter being the only previously known form (with Ln=La). In both forms, the LnIII is nine-coordinate, in an approximately tricapped trigonal-prismatic environment, with two picrate ligands chelating through phenoxide and 2-nitro group oxygen atoms, the third being bound through phenoxide-O only. The 2,2′:6′,2′′-terpyridine complexes, all acetonitrile monosolvates defined for Ln=La, Gd, Er, and Y (monoclinic, C2/c, Z 4), are ionic, one picrate having been displaced from the primary coordination sphere. For Ln=La, the two bound picrates are again chelating, making the LaIII 10-coordinate in a distorted bicapped square-antiprismatic environment but in the other species they are bound through phenoxide-O only, making the LnIII ions eight-coordinate in a distorted square-antiprismatic environment. Stacked arrays of the ligands can be found in both series of complexes, with intramolecular picrate–picrate and picrate–aza-aromatic stacks being prominent features.
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Petrosyants SP, Ilyukhin AB, Gavrikov AV, Mikhlina YA, Puntus LN, Varaksina EA, Efimov NN, Novotortsev VM. Luminescent and magnetic properties of mononuclear lanthanide thiocyanates with terpyridine as auxiliary ligand. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Di Pietro P, Kerridge A. Ligand size dependence of U–N and U–O bond character in a series of uranyl hexaphyrin complexes: quantum chemical simulation and density based analysis. Phys Chem Chem Phys 2017; 19:7546-7559. [DOI: 10.1039/c6cp08783c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quantum chemical and density based analysis of bonding in uranyl hexaphyrin complexes, looking for trends in stability and covalency.
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Bruns J, Krüger S, Adlung M, Wickleder C, Niehaus O, Pöttgen R, Klüner T, Kräuter J, Wickleder MS. A Highly Triflated Rare-Earth Ion in [Eu(O3SCF3)8](5-). Chemistry 2015; 21:12389-95. [PMID: 26179376 DOI: 10.1002/chem.201501941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 11/06/2022]
Abstract
The reaction of Eu2O3 with fuming nitric acid, trifluormethanesulfonic acid, and its anhydride in torch-sealed glass ampoules at 120 °C gave the europium compound (NO)5[Eu(O3SCF3)8] (orthorhombic, Fddd, Z = 16, a = 1932.69(4), b = 2878.44(7), c = 2955.12(7) pm, V = 16439.7(7) Å(3)). The compound exhibits the [Eu(O3SCF3)8](5-) anion showing for the first time a lanthanide ion that is exclusively coordinated by eight triflate anions. The anion has been further investigated by DFT calculations, which also allowed clear assignment of the vibrational spectra. Moreover, magnetochemical and luminescence measurements gave additional insight into the properties of this complex. The luminescence spectra revealed that the Eu(3+) ions are in a pseudo D4d symmetric environment.
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Affiliation(s)
- Jörn Bruns
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie, Carl-von-Ossietzky Strasse 9-11, 26129 Oldenburg (Germany), Fax: (+49) 441-798-3352
| | - Sascha Krüger
- Universität Siegen, Institut für Anorganische Chemie, Adolf-Reichwein-Strasse 2, 57068 Siegen (Germany)
| | - Matthias Adlung
- Universität Siegen, Institut für Anorganische Chemie, Adolf-Reichwein-Strasse 2, 57068 Siegen (Germany)
| | - Claudia Wickleder
- Universität Siegen, Institut für Anorganische Chemie, Adolf-Reichwein-Strasse 2, 57068 Siegen (Germany)
| | - Oliver Niehaus
- Westfälische Wilhelms Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149 Münster (Germany)
| | - Rainer Pöttgen
- Westfälische Wilhelms Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149 Münster (Germany)
| | - Thorsten Klüner
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie, Carl-von-Ossietzky Strasse 9-11, 26129 Oldenburg (Germany), Fax: (+49) 441-798-3352
| | - Jessica Kräuter
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie, Carl-von-Ossietzky Strasse 9-11, 26129 Oldenburg (Germany), Fax: (+49) 441-798-3352
| | - Mathias S Wickleder
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie, Carl-von-Ossietzky Strasse 9-11, 26129 Oldenburg (Germany), Fax: (+49) 441-798-3352.
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Kim JE, Weinberger DS, Carroll PJ, Schelter EJ. Synthesis, Structural Characterization, and Carbonyl Addition Reactivity of a Terminal Cerium(III) Acetylide Complex. Organometallics 2014. [DOI: 10.1021/om500899z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jee Eon Kim
- P. Roy
and Diana T. Vagelos
Laboratories, Department of Chemistry, University of Pennsylvania, 231
South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - David S. Weinberger
- P. Roy
and Diana T. Vagelos
Laboratories, Department of Chemistry, University of Pennsylvania, 231
South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J. Carroll
- P. Roy
and Diana T. Vagelos
Laboratories, Department of Chemistry, University of Pennsylvania, 231
South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Eric J. Schelter
- P. Roy
and Diana T. Vagelos
Laboratories, Department of Chemistry, University of Pennsylvania, 231
South 34th Street, Philadelphia, Pennsylvania 19104, United States
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7
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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]
Affiliation(s)
- Alexandre Hervé
- CEA, IRAMIS, NIMBE, UMR 3299 CEA/CNRS SIS2M, CEA/Saclay, Bat 125, 91191 Gif-sur-Yvette, France
| | - Yamina Bouzidi
- URCHEMS,
Département de Chimie, Université Constantine 1, 25000 Constantine, Algeria
| | - Jean-Claude Berthet
- CEA, IRAMIS, NIMBE, UMR 3299 CEA/CNRS SIS2M, CEA/Saclay, Bat 125, 91191 Gif-sur-Yvette, France
| | - Lotfi Belkhiri
- URCHEMS,
Département de Chimie, Université Constantine 1, 25000 Constantine, Algeria
| | - Pierre Thuéry
- CEA, IRAMIS, NIMBE, UMR 3299 CEA/CNRS SIS2M, CEA/Saclay, Bat 125, 91191 Gif-sur-Yvette, France
| | - Abdou Boucekkine
- Institut
des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Michel Ephritikhine
- CEA, IRAMIS, NIMBE, UMR 3299 CEA/CNRS SIS2M, CEA/Saclay, Bat 125, 91191 Gif-sur-Yvette, France
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8
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Zaiter A, Amine B, Bouzidi Y, Belkhiri L, Boucekkine A, Ephritikhine M. Selectivity of Azine Ligands Toward Lanthanide(III)/Actinide(III) Differentiation: A Relativistic DFT Based Rationalization. Inorg Chem 2014; 53:4687-97. [DOI: 10.1021/ic500361b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Abdellah Zaiter
- URCHEMS, Université Constantine 1 (ex. Mentouri), route
de Ain El Bey, 25017 Constantine, Algeria
| | - Boudersa Amine
- URCHEMS, Université Constantine 1 (ex. Mentouri), route
de Ain El Bey, 25017 Constantine, Algeria
| | - Yamina Bouzidi
- URCHEMS, Université Constantine 1 (ex. Mentouri), route
de Ain El Bey, 25017 Constantine, Algeria
| | - Lotfi Belkhiri
- URCHEMS, Université Constantine 1 (ex. Mentouri), route
de Ain El Bey, 25017 Constantine, Algeria
| | - Abdou Boucekkine
- Institut des Sciences
Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de
Beaulieu, 35042 Rennes Cedex, France
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9
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La Pierre HS, Meyer K. Activation of Small Molecules by Molecular Uranium Complexes. PROGRESS IN INORGANIC CHEMISTRY 2014. [DOI: 10.1002/9781118792797.ch05] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Hoang TNY, Humbert-Droz M, Dutronc T, Guénée L, Besnard C, Piguet C. A Polyaromatic Terdentate Binding Unit with Fused 5,6-Membered Chelates for Complexing s-, p-, d-, and f-Block Cations. Inorg Chem 2013; 52:5570-80. [DOI: 10.1021/ic400526j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Thi Nhu Y Hoang
- Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30 quai E. Ansermet, CH-1211 Geneva 4, Switzerland.
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11
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Lhoste J, Henry N, Loiseau T, Guyot Y, Abraham F. Crystal structures of 2,2′:6′,2″-terpyridine uranyl chlorides molecular assemblies and their luminescence signatures. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.11.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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The coordination and organometallic chemistry of UI3 and U{N(SiMe3)2}3: Synthetic reagents par excellence. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.09.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Berthet JC, Onno JM, Gupta F, Rivière C, Thuéry P, Nierlich M, Madic C, Ephritikhine M. Coordination of 1,10-phenanthroline, 3,4,7,8-tetramethyl-1,10-phenanthroline and 2,4,6-tris(2-pyridyl)-1,3,5-triazine to MX3 (M=Ce, U; X=I, OSO2CF3) in pyridine and acetonitrile. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mougel V, Pécaut J, Mazzanti M. New polynuclear U(IV)-U(V) complexes from U(IV) mediated uranyl(V) disproportionation. Chem Commun (Camb) 2011; 48:868-70. [PMID: 22134746 DOI: 10.1039/c1cc16646h] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
U(IV) promotes the disproportionation of otherwise stable uranyl(V) Schiff base complexes affording U(IV)-U(V) oxo clusters with new geometries and the first example of a U(IV)···UO(2)(+) cation-cation interaction.
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Affiliation(s)
- Victor Mougel
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination, SCIB, UMR-E 3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09, France
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15
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Lhoste J, Pérez-Campos A, Henry N, Loiseau T, Rabu P, Abraham F. Chain-like and dinuclear coordination polymers in lanthanide (Nd, Eu) oxochloride complexes with 2,2′:6′,2′′-terpyridine: synthesis, XRD structure and magnetic properties. Dalton Trans 2011; 40:9136-44. [DOI: 10.1039/c1dt10485c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jérôme Lhoste
- Unité de Catalyse et Chimie du Solide (UCCS) - UMR CNRS 8181, Université de Lille Nord de France, USTL-ENSCL, Bat C7, BP 90108, 59652, Villeneuve d'Ascq, France
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16
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Berthet JC, Maynadié J, Thuéry P, Ephritikhine M. Linear uranium metallocenes with polydentate aromatic nitrogen ligands. Dalton Trans 2010; 39:6801-7. [PMID: 20520885 DOI: 10.1039/c002279a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of [Cp*(2)U(NCMe)(5)]X(2) [Cp* = C(5)Me(5), X = BPh(4) (1) or I (1')] or Cp*(2)UI(2) in acetonitrile with the polydentate aromatic nitrogen bases phen, terpy and R(4)btbp led to the formation of the linear uranium metallocenes [Cp*(2)U(NCMe)(3)(phen)]X(2) [X = BPh(4) (2), I (2')], [Cp*(2)U(NCMe)(2)(terpy)][BPh(4)](2) (4), [Cp*(2)U(NCMe)(Me(4)btbp)][BPh(4)](2) (5) and [Cp*(2)U(NCMe)(CyMe(4)btbp)][X](2), [X = BPh(4) (6), I (6')], [phen = 1,10-phenanthroline, terpy = 2,2':6,2''-terpyridine, Me(4)btbp = 6,6'-bis-(3,3,6,6-tetramethyl-1,2,4-triazin-3-yl)-2,2'-bipyridine, CyMe(4)btbp = 6,6'-bis-(3,3,6,6-tetramethyl-cyclohexane-1,2,4-triazin-3-yl)-2,2'-bipyridine]. The bent metallocene [Cp*(2)U(phen)(2)][BPh(4)](2) (3) was isolated from the reaction of 1 and two molar equivalents of phen in THF. The X-ray crystal structures of 2.2MeCN, 3.2THF, and 6'.2MeCN were determined.
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Hannachi D, Ouddai N, Chermette H. A quantum chemistry investigation on the structure of lanthanide triflates Ln(OTf)3 where Ln = La, Ce, Nd, Eu, Gd, Er, Yb and Lu. Dalton Trans 2010; 39:3673-80. [DOI: 10.1039/b923391a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Arliguie T, Belkhiri L, Bouaoud SE, Thuéry P, Villiers C, Boucekkine A, Ephritikhine M. Lanthanide(III) and actinide(III) complexes [M(BH4)2 (THF)5][BPh4] and [M(BH4)2(18-crown-6)][BPh4] (M = Nd, Ce, U): synthesis, crystal structure, and density functional theory investigation of the covalent contribution to metal-borohydride bonding. Inorg Chem 2009; 48:221-30. [PMID: 19053334 DOI: 10.1021/ic801685v] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of [M(BH4)3(THF)3] with NEt3HBPh4 in THF afforded the cationic complexes [M(BH4)2(THF)5][BPh4] [M = U (1), Nd (2), Ce (3)] which were transformed into [M(BH4)2(18-crown-6)][BPh4] [M = U (4), Nd (5), Ce (6)] in the presence of 18-crown-6; [U(BH4)2(18-thiacrown-6)][BPh4] (7) was obtained from 1 and 18-thiacrown-6 in tetrahydro-thiophene. Compounds 1, 3.C4H8S, 4.THF, 5, and 6.THF exhibit a penta- or hexagonal bipyramidal crystal structure with the two terdentate borohydride ligands in apical positions; the BH4 groups in the crystals of 7.C4H8S are in relative cis positions, and the thiacrown-ether presents a saddle shape, with two diametrically opposite sulfur atoms bound to uranium in trans positions. The crystal structures of these complexes, as well as those of previously reported [M(BH4)2(THF)5]+ cations, do not reveal any clear-cut lanthanide(III)/actinide(III) differentiation. The structural data obtained for [M(BH4)2(18-crown-6)]+ (M = U, Ce) by relativistic density functional theory (DFT) calculations are indicative of a small shortening of the U...B with respect to the Ce...B distance, which is accompanied by a lengthening of the U-Hb bonds and an opening of the Hb-B-Hb angle (Hb = bridging hydrogen atom of the eta3-BH4 ligand). The Mulliken population analysis and the natural bond orbital analysis indicate that the BH4 -->M(III) donation is greater for M = U than for M = Ce, as well as the overlap population of the M-Hb bond, thus showing a better interaction between the uranium 5f orbitals and the Hb atoms. The more covalent character of the B-H-U three-center two-electron bond was confirmed by the molecular orbital (MO) analysis. Three MOs represent the pi bonding interactions between U(III) and the three Hb atoms with significant 6d and 5f orbital contributions. These MOs in the cerium(III) complex exhibit a much lesser metallic weight with practically no participation of the 4f orbitals.
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Affiliation(s)
- Thérèse Arliguie
- CEA, IRAMIS, Service de Chimie Moléculaire, CNRS URA 331, CEA/Saclay, 91191 Gif-sur-Yvette, France
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Evans WJ, Walensky JR, Furche F, Ziller JW, DiPasquale AG, Rheingold AL. Synthesis of (C5Me5)2(C5Me4H)UMe, (C5Me5)2(C5H5)UMe, and (C5Me5)2UMe[CH(SiMe3)2] from Cationic Metallocenes for the Evaluation of Sterically Induced Reduction. Inorg Chem 2008; 47:10169-76. [DOI: 10.1021/ic801232e] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
| | - Justin R. Walensky
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
| | - Filipp Furche
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
| | - Antonio G. DiPasquale
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
| | - Arnold L. Rheingold
- Department of Chemistry, University of California, Irvine, California 92697-2025, and Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358 La Jolla, California 92093-0358
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Mishra S. Anhydrous scandium, yttrium, lanthanide and actinide halide complexes with neutral oxygen and nitrogen donor ligands. Coord Chem Rev 2008. [DOI: 10.1016/j.ccr.2007.10.029] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kolarik Z. Complexation and Separation of Lanthanides(III) and Actinides(III) by Heterocyclic N-Donors in Solutions. Chem Rev 2008; 108:4208-52. [DOI: 10.1021/cr078003i] [Citation(s) in RCA: 372] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zdenek Kolarik
- Consultant, Kolberger Strasse 9, D-76139 Karlsruhe, Germany
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Roger M, Belkhiri L, Arliguie T, Thuéry P, Boucekkine A, Ephritikhine M. Uranium and Lanthanide Complexes with the 2-Mercapto Benzothiazolate Ligand: Evidence for a Specific Covalent Binding Site in the Differentiation of Isostructural Lanthanide(III) and Actinide(III) Compounds. Organometallics 2007. [DOI: 10.1021/om7007315] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mathieu Roger
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Lotfi Belkhiri
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Thérèse Arliguie
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Pierre Thuéry
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Abdou Boucekkine
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
| | - Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA/Saclay 91191 Gif-sur-Yvette, France, Laboratoire de Chimie Moléculaire (LACMOM), Département de Chimie, Faculté des Sciences, Université Mentouri de Constantine, BP 325, Route de l’Aéroport Ain El Bey, 25017 Constantine, Algeria, and UMR CNRS 6226 Sciences Chimiques de Rennes, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes, France
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Maynadié, J, Berthet JC, Thuéry P, Ephritikhine M. Cyanide Metallocenes of Trivalent f-Elements. Organometallics 2007. [DOI: 10.1021/om061131x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jérôme Maynadié,
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Jean-Claude Berthet
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
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24
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Petit L, Daul C, Adamo C, Maldivi P. DFT modeling of the relative affinity of nitrogen ligands for trivalent f elements: an energetic point of view. NEW J CHEM 2007. [DOI: 10.1039/b706332f] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Maynadié, J, Berthet JC, Thuéry P, Ephritikhine M. From Bent to Linear Uranium Metallocenes: Influence of Counterion, Solvent, and Metal Ion Oxidation State. Organometallics 2006. [DOI: 10.1021/om060642g] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jérôme Maynadié,
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Jean-Claude Berthet
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Pierre Thuéry
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
| | - Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, Laboratoire Claude Fréjacques, CEA/Saclay, 91191 Gif-sur-Yvette, France
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26
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Guillaumont D. Actinide(III) and lanthanide(III) complexes with nitrogen ligands: Counterions and ligand substituent effects on the metal–ligand bond. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.theochem.2006.03.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Diversity of triflate coordination modes in neodymocene complexes containing bulky bis(trimethylsilyl)cyclopentadienyl ligands. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.12.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Salmon L, Thuéry P, Ephritikhine M. Polynuclear uranium(IV) compounds with (μ3-oxo)U3 or (μ4-oxo)U4 cores and compartmental Schiff base ligands. Polyhedron 2006. [DOI: 10.1016/j.poly.2005.10.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Berthet JC, Thuéry P, Ephritikhine M. First characterization of an uranium(III) complex with a carbonyl-containing ligand: Syntheses and X-ray crystal structures of the homoleptic dimethylformamide complexes [M(dmf)n]I3 (M=Ce, Nd and n=8; M=La, Ce, U and n=9). Polyhedron 2006. [DOI: 10.1016/j.poly.2005.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Ephritikhine M. The vitality of uranium molecular chemistry at the dawn of the XXIst century. Dalton Trans 2006:2501-16. [PMID: 16718334 DOI: 10.1039/b603463b] [Citation(s) in RCA: 264] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intent of this Dalton Perspective is to highlight the recent advances in uranium molecular chemistry, with the results reported during the 2000-2006 period. This discipline is currently witnessing an impressive development, together with the theoretical chemistry and solid-state chemistry of the f-elements, and its face has profoundly changed, revealing unsuspected structural and reactivity features. This progress required and was facilitated by the use of new precursors. Studies of low-valent compounds gave a better insight into lanthanide(III)/actinide(III) differentiation and led to the discovery of unusual reactions, including activation of small molecules. A number of tetravalent uranium complexes, in particular polynuclear compounds, have been synthesized, which exhibit exciting structures and physicochemical properties. The potential of uranium(III) and uranium(IV) complexes in catalysis has been confirmed. The uranyl complexes, from mononuclear species to supramolecular assemblies, reveal a variety of novel structures, changing the generally accepted ideas on the coordination geometry and the stability of the UO2(2+) ion.
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Affiliation(s)
- Michel Ephritikhine
- Service de Chimie Moléculaire, DSM, DRECAM, Laboratoire Claude Fréjacques (CNRS URA 331), CEA/Saclay, 91191, Gif-sur-Yvette, France.
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31
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Mehdoui T, Berthet JC, Thuéry P, Salmon L, Rivière E, Ephritikhine M. Lanthanide(III)/Actinide(III) Differentiation in the Cerium and Uranium Complexes [M(C5Me5)2(L)]0,+ (L=2,2′-Bipyridine, 2,2′:6′,2′′-Terpyridine): Structural, Magnetic, and Reactivity Studies. Chemistry 2005; 11:6994-7006. [PMID: 16138383 DOI: 10.1002/chem.200500479] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Treatment of [Ce(Cp*)(2)I] or [U(Cp*)(2)I(py)] with 1 mol equivalent of bipy (Cp*=C(5)Me(5); bipy=2,2'-bipyridine) in THF gave the adducts [M(Cp*)(2)I(bipy)] (M=Ce (1 a), M=U (1 b)), which were transformed into [M(Cp*)(2)(bipy)] (M=Ce (2 a), M=U (2 b)) by Na(Hg) reduction. The crystal structures of 1 a and 1 b show, by comparing the U-N and Ce-N distances and the variations in the C-C and C-N bond lengths within the bidentate ligand, that the extent of donation of electron density into the LUMO of bipy is more important in the actinide than in the lanthanide compound. Reaction of [Ce(Cp*)(2)I] or [U(Cp*)(2)I(py)] with 1 mol equivalent of terpy (terpy=2,2':6',2''-terpyridine) in THF afforded the adducts [M(Cp*)(2)(terpy)]I (M=Ce (3 a), M=U (3 b)), which were reduced to the neutral complexes [M(Cp*)(2)(terpy)] (M=Ce (4 a), M=U (4 b)) by sodium amalgam. The complexes [M(Cp*)(2)(terpy)][M(Cp*)(2)I(2)] (M=Ce (5 a), M=U (5 b)) were prepared from a 2:1 mixture of [M(Cp*)(2)I] and terpy. The rapid and reversible electron-transfer reactions between 3 and 4 in solution were revealed by (1)H NMR spectroscopy. The spectrum of 5 b is identical to that of the 1:1 mixture of [U(Cp*)(2)I(py)] and 3 b, or [U(Cp*)(2)I(2)] and 4 b. The magnetic data for 3 and 4 are consistent with trivalent cerium and uranium species, with the formulation [M(III)(Cp*)(2)(terpy(*-))] for 4 a and 4 b, in which spins on the individual units are uncoupled at 300 K and antiferromagnetically coupled at low temperature. Comparison of the crystal structures of 3 b, 4 b, and 5 b with those of 3 a and the previously reported ytterbium complex [Yb(Cp*)(2)(terpy)] shows that the U-N distances are much shorter, by 0.2 A, than those expected from a purely ionic bonding model. This difference should reflect the presence of stronger electron transfer between the metal and the terpy ligand in the actinide compounds. This feature is also supported by the small but systematic structural variations within the terdentate ligands, which strongly suggest that the LUMO of terpy is more filled in the actinide than in the lanthanide complexes and that the canonical forms [U(IV)(Cp*)(2)(terpy(*-))]I and [U(IV)(Cp*)(2)(terpy(2-))] contribute significantly to the true structures of 3 b and 4 b, respectively. This assumption was confirmed by the reactions of complexes 3 and 4 with the H(.) and H(+) donor reagents Ph(3)SnH and NEt(3)HBPh(4), which led to clear differentiation of the cerium and uranium complexes. No reaction was observed between 3 a and Ph(3)SnH, while the uranium counterpart 3 b was transformed in pyridine into the uranium(IV) compound [U(Cp*)(2){NC(5)H(4)(py)(2)}]I (6), where NC(5)H(4)(py)(2) is the 2,6-dipyridyl(hydro-4-pyridyl) ligand. Complex 6 was further hydrogenated to [U(Cp*)(2){NC(5)H(8)(py)(2)}]I (7) by an excess of Ph(3)SnH in refluxing pyridine. Treatment of 4 a with NEt(3)HBPh(4) led to oxidation of the terpy(*-) ligand and formation of [Ce(Cp*)(2)(terpy)]BPh(4), whereas similar reaction with 4 b afforded [U(Cp*)(2){NC(5)H(4)(py)(2)}]BPh(4) (6'). The crystal structures of 6, 6' and 7 were determined.
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Affiliation(s)
- Thouraya Mehdoui
- Service de Chimie Moléculaire, Bât. 125, DSM, DRECAM, CNRS URA 331, CEA/Saclay, Gif-sur-Yvette, France
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32
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Berthet JC, Thuéry P, Ephritikhine M. Unprecedented reduction of the uranyl ion [UO2]2+ into a polyoxo uranium(iv) cluster: Synthesis and crystal structure of the first f-element oxide with a M6(µ3-O)8 core. Chem Commun (Camb) 2005:3415-7. [PMID: 15997282 DOI: 10.1039/b503830h] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The smooth comproportionation reaction of the U(VI) and U(III) complexes UO2(OTf)2 and U(OTf)3, afforded the hexanuclear U(IV) oxide cluster [U6(micro3-O)8(micro2-OTf)8(py)8], a rare example of a metal oxide with a M6(micro3-O)8 core.
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Affiliation(s)
- Jean-Claude Berthet
- Service de Chimie Moléculaire, DSM, DRECAM, CNRS URA 331, CEA Saclay, 91191 Gif- sur-Yvette, France.
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Mehdoui T, Berthet JC, Thuery P, Ephritikhine M. The distinct affinity of cyclopentadienyl ligands towards trivalent uranium over lanthanide ions. Evidence for cooperative ligation and back-bonding in the actinide complexes. Dalton Trans 2005:1263-72. [PMID: 15782263 DOI: 10.1039/b419088b] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mono and bis(cyclopentadienyl) compounds [M(C5H4Bu t)I2] and [M(C5H4Bu t)2I](M = U, La, Ce, Nd) were formed in thf by comproportionation reactions of [M(C5H4Bu t)3] and LnI3 or [UI3(L)4](L = thf or py) in the molar ratio of 1 : 2 and 2 : 1, respectively, while treatment of [UI(3)(py)(4)] or LnI(3)(Ln = La, Ce, Nd) with 1 or 2 mol equivalents of LiC5H4Bu t in thf afforded the [M(C5H4Bu t)I2] and [M(C5H4Bu t)2I2]- compounds, respectively. The X-ray crystal structures of [M(C5H4Bu t)I2(py)3](M = U, La, Ce, Nd), [{Ce(C5H4Bu t)2(mu-I)}2] and [M(C5H4Bu t)2I(py)2](M = U, Nd) have been determined; the differences between the average M-C distances in the mono(cyclopentadienyl) complexes correspond to the variation in the ionic radii of the trivalent uranium and lanthanide ions while the U-N and U-I bond lengths seem to be smaller than those predicted from a purely ionic bonding model. The distinct affinity of the cyclopentadienyl ligands towards Ln(III) and U(III) was revealed by two series of competing reactions: the ligand exchange reactions between [Ln(C5H4Bu t)(n')I(3-n')](Ln = La, Ce, Nd) and [U(C5H4Bu t)(n'')I(3-n'')] species (1 < or = n'+n'' =n < or = 5), and the addition of n mol equivalents of LiC(5)H(4)Bu(t)(1 [less-than-or-equal]n[less-than-or-equal] 5) to a 1 : 1 mixture of LnI3 and [UI3(thf)4] or [UI3(py)4]. The stability of the [M(C5H4Bu t)I2] species was found to vary in the order Nd > Ce > U > La, a trend which is in accord with an electrostatic bonding model. However, the bis and tris(cyclopentadienyl) complexes of uranium are more stable than their lanthanide analogues. This difference can be accounted for by a higher degree of covalency in the U-C5H4Bu t bond, resulting from the late appearance of back-bonding which would emerge only after the first cyclopentadienyl ligand is bound.
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Affiliation(s)
- Thouraya Mehdoui
- Service de Chimie Moleculaire, DSM, DRECAM, CNRS URA 331 Laboratoire Claude Frejacques, CEA/Saclay, 91191, Gif-sur-Yvette, France
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