51
|
Ghosh S, Rahaman A, Holt KB, Nordlander E, Richmond MG, Kabir SE, Hogarth G. Hydrogenase biomimetics with redox-active ligands: Electrocatalytic proton reduction by [Fe2(CO)4(κ2-diamine)(μ-edt)] (diamine = 2,2′-bipy, 1,10-phen). Polyhedron 2016. [DOI: 10.1016/j.poly.2016.05.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
52
|
Garner ME, Hohloch S, Maron L, Arnold J. A New Supporting Ligand in Actinide Chemistry Leads to Reactive Bis(NHC)borate-Supported Thorium Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00467] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mary E. Garner
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Stephan Hohloch
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA Toulouse, 135 Avenue
de Rangueil, 31077 Toulouse, France
| | - John Arnold
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| |
Collapse
|
53
|
Goodwin CAP, Chilton NF, Vettese GF, Moreno Pineda E, Crowe IF, Ziller JW, Winpenny REP, Evans WJ, Mills DP. Physicochemical Properties of Near-Linear Lanthanide(II) Bis(silylamide) Complexes (Ln = Sm, Eu, Tm, Yb). Inorg Chem 2016; 55:10057-10067. [DOI: 10.1021/acs.inorgchem.6b00808] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Conrad A. P. Goodwin
- School of Chemistry, The University of Manchester, Oxford
Road, Manchester M13 9PL, U.K
| | - Nicholas F. Chilton
- School of Chemistry, The University of Manchester, Oxford
Road, Manchester M13 9PL, U.K
| | - Gianni F. Vettese
- School of Chemistry, The University of Manchester, Oxford
Road, Manchester M13 9PL, U.K
| | - Eufemio Moreno Pineda
- School of Chemistry, The University of Manchester, Oxford
Road, Manchester M13 9PL, U.K
| | - Iain F. Crowe
- Photon Science Institute and School of
Electrical and Electronic Engineering, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | | | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - David P. Mills
- School of Chemistry, The University of Manchester, Oxford
Road, Manchester M13 9PL, U.K
| |
Collapse
|
54
|
King AE, Stieber SCE, Henson NJ, Kozimor SA, Scott BL, Smythe NC, Sutton AD, Gordon JC. Ni(bpy)(cod): A Convenient Entryway into the Efficient Hydroboration of Ketones, Aldehydes, and Imines. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600143] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
55
|
Maria L, Soares M, Santos IC, Sousa VR, Mora E, Marçalo J, Luzyanin KV. A novel samarium(ii) complex bearing a dianionic bis(phenolate) cyclam ligand: synthesis, structure and electron-transfer reactions. Dalton Trans 2016; 45:3778-90. [PMID: 26818107 DOI: 10.1039/c5dt04647e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The reaction of the hexadentate dianionic 1,4,8,11-tetraazacyclotetradecane-based bis(phenolate) ligand, (tBu2ArO)2Me2-cyclam(2-), with [SmI2(thf )2] in thf resulted in the formation of the divalent samarium complex [Sm(κ(6)-{(tBu2ArO)2Me2-cyclam})] (1). X-ray diffraction studies revealed that after recrystallization from n-hexane/thf complex 1 has a monomeric structure and does not contain thf molecules coordinated to the Sm(II) center. However, UV-vis and (1)H NMR spectroscopy of 1 evidenced the formation of thf-solvated complexes in neat thf. Reductive studies show that complex 1 can act as a single electrontransfer reagent and form well-defined Sm(III) species. The reaction of 1 with several substrates, namely, TlBPh4, pyridine N-oxide, OPPh3, SPPh3 and bipyridines, are reported. Spectroscopy studies, including NMR, and single crystal X-ray diffraction data are in agreement with the formation of cationic Sm(III) species, monochalcogenide bridged Sm(III) complexes and Sm(III) complexes with bipyridine radical ligand, respectively.
Collapse
Affiliation(s)
- Leonor Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - Marina Soares
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal. and Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Isabel C Santos
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - Vânia R Sousa
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - Elsa Mora
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - Joaquim Marçalo
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal.
| | - Konstantin V Luzyanin
- Institute of Chemistry, Saint Petersburg State University, Universitetsky pr. 26, 198504 Saint Petersburg, Russian Federation and Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK
| |
Collapse
|
56
|
Fortier S, Veleta J, Pialat A, Le Roy J, Ghiassi KB, Olmstead MM, Metta‐Magaña A, Murugesu M, Villagrán D. [U(bipy)
4
]: A Mistaken Case of U
0
? Chemistry 2016; 22:1931-1936. [DOI: 10.1002/chem.201504982] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Skye Fortier
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - José Veleta
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| | - Amélie Pialat
- Department of Chemistry University of Ottawa Ottawa ON K1N 6N5 Canada
| | - Jennifer Le Roy
- Department of Chemistry University of Ottawa Ottawa ON K1N 6N5 Canada
| | - Kamran B. Ghiassi
- Department of Chemistry University of California, Davis Davis CA 95616 USA
| | | | | | - Muralee Murugesu
- Department of Chemistry University of Ottawa Ottawa ON K1N 6N5 Canada
| | - Dino Villagrán
- Department of Chemistry University of Texas at El Paso El Paso TX 79968 USA
| |
Collapse
|
57
|
Jaoul A, Clavaguéra C, Nocton G. Electron transfer in tetramethylbiphosphinine complexes of Cp*2Yb and Cp*2Sm. NEW J CHEM 2016. [DOI: 10.1039/c6nj00527f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
How to make sure an electron is really transferred to a tmbp ligand?
Collapse
Affiliation(s)
- Arnaud Jaoul
- LCM
- CNRS
- Ecole Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau
| | | | - Grégory Nocton
- LCM
- CNRS
- Ecole Polytechnique
- Université Paris-Saclay
- 91128 Palaiseau
| |
Collapse
|
58
|
Pushkarevsky NA, Ogienko MA, Smolentsev AI, Novozhilov IN, Witt A, Khusniyarov MM, Cherkasov VK, Konchenko SN. Cooperative reduction by Ln2+ and Cp*− ions: synthesis and properties of Sm, Eu, and Yb complexes with 3,6-di-tert-butyl-o-benzoquinone. Dalton Trans 2016; 45:1269-78. [DOI: 10.1039/c5dt03573b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Reactions of lantanocenes LnCp2*(thf)n with the title o-quinone result in either dinuclear (Sm3+,Yb3+) or trinuclear mixed-valent (Eu2+/Eu3+) catecholates.
Collapse
Affiliation(s)
- Nikolay A. Pushkarevsky
- Nikolaev Institute of Inorganic Chemistry
- Siberian Division of RAS
- 630090 Novosibirsk
- Russia
- Department of Natural Sciences
| | - Mikhail A. Ogienko
- Nikolaev Institute of Inorganic Chemistry
- Siberian Division of RAS
- 630090 Novosibirsk
- Russia
| | - Anton I. Smolentsev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Division of RAS
- 630090 Novosibirsk
- Russia
| | - Igor N. Novozhilov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Division of RAS
- 630090 Novosibirsk
- Russia
| | - Alexander Witt
- Department of Chemistry and Pharmacy
- Friedrich-Alexander-University of Erlangen-Nuremberg
- 91058 Erlangen
- Germany
| | - Marat M. Khusniyarov
- Department of Chemistry and Pharmacy
- Friedrich-Alexander-University of Erlangen-Nuremberg
- 91058 Erlangen
- Germany
| | - Vladimir K. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of RAS
- 603950 Nizhny Novgorod
- Russia
- N. I. Lobachevsky Nizhny Novgorod State University
- Nizhny Novgorod
| | - Sergey N. Konchenko
- Nikolaev Institute of Inorganic Chemistry
- Siberian Division of RAS
- 630090 Novosibirsk
- Russia
- Department of Natural Sciences
| |
Collapse
|
59
|
Diaconescu PL, Cummins CC. Radical anionic versus neutral 2,2'-bipyridyl coordination in uranium complexes supported by amide and ketimide ligands. Dalton Trans 2015; 44:2676-83. [PMID: 25510329 DOI: 10.1039/c4dt02422b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis and characterization of (bipy)(2)U(N[t-Bu]Ar)(2) (1-(bipy)(2), bipy = 2,2'-bipyridyl, Ar = 3,5-C(6)H(3)Me(2)), (bipy)U(N[(1)Ad]Ar)(3) (2-bipy), (bipy)(2)U(NC[t-Bu]Mes)(3) (3-(bipy)(2), Mes = 2,4,6-C(6)H(2)Me(3)), and IU(bipy)(NC[t-Bu]Mes)(3) (3-I-bipy) are reported. X-ray crystallography studies indicate that bipy coordinates as a radical anion in 1-(bipy)(2) and 2-bipy, and as a neutral ligand in 3-I-bipy. In 3-(bipy)(2), one of the bipy ligands is best viewed as a radical anion, the other as a neutral ligand. The electronic structure assignments are supported by NMR spectroscopy studies of exchange experiments with 4,4'-dimethyl-2,2'-bipyridyl and also by optical spectroscopy. In all complexes, uranium was assigned a +4 formal oxidation state.
Collapse
Affiliation(s)
- Paula L Diaconescu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA.
| | | |
Collapse
|
60
|
Selikhov AN, Mahrova TV, Cherkasov AV, Fukin GK, Larionova J, Long J, Trifonov AA. Base-Free Lanthanoidocenes(II) Coordinated by Bulky Pentabenzylcyclopentadienyl Ligands. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00243] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander N. Selikhov
- Institute of Organometallic Chemistry of Russian Academy of Scienes, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Tatyana V. Mahrova
- Institute of Organometallic Chemistry of Russian Academy of Scienes, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Scienes, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Scienes, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
- Nizhny Novgorod State University, Gagarina 23, 603950, Nizhny Novgorod, Russia
| | - Joulia Larionova
- Institut
Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, Chimie
Moléculaire et Organisation du Solide, Université Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Jêrome Long
- Institut
Charles Gerhardt Montpellier, UMR 5253 CNRS-UM2-ENSCM-UM1, Chimie
Moléculaire et Organisation du Solide, Université Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Scienes, Tropinina 49, GSP-445, 630950, Nizhny Novgorod, Russia
- Nizhny Novgorod State University, Gagarina 23, 603950, Nizhny Novgorod, Russia
- Institute of Organoelement Compounds of Russian Academy of Scienes, Vavilova Street 28, 119334, Moscow, Russia
| |
Collapse
|
61
|
Mukhopadhyay TK, MacLean NL, Gan L, Ashley DC, Groy TL, Baik MH, Jones AK, Trovitch RJ. Carbon Dioxide Promoted H+ Reduction Using a Bis(imino)pyridine Manganese Electrocatalyst. Inorg Chem 2015; 54:4475-82. [DOI: 10.1021/acs.inorgchem.5b00315] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tufan K. Mukhopadhyay
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Nicholas L. MacLean
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Lu Gan
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Daniel C. Ashley
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Thomas L. Groy
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Mu-Hyun Baik
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Anne K. Jones
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| | - Ryan J. Trovitch
- Department of Chemistry & Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
| |
Collapse
|
62
|
|
63
|
Tohmé A, Hagen CT, Essafi (née Labouille) S, Bondon A, Roisnel T, Carmichael D, Paul F. Easy and quantitative access to Fe( ii) and Fe( iii) di(aryl)alkynylphosphine oxides featuring [Fe(dppe)Cp*] endgroups: terminal PO functionality blocks the dimerisation of the Fe( iii) derivatives. Chem Commun (Camb) 2015; 51:1316-9. [DOI: 10.1039/c4cc08993f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Preventing the oxidatively-induced dimerization of Fe(iii) metalloalkynyl phosphines can be achieved by sequestering the phosphorus lone pair.
Collapse
Affiliation(s)
- Ayham Tohmé
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Charles T. Hagen
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- 35042 Rennes Cedex
- France
| | | | - Arnaud Bondon
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- 35042 Rennes Cedex
- France
| | - Duncan Carmichael
- Laboratoire de Chimie Moléculaire
- CNRS (UMR 9168)
- Ecole Polytechnique
- 91128 Palaiseau Cedex
- France
| | - Frédéric Paul
- Institut des Sciences Chimiques de Rennes
- CNRS (UMR 6226) Université de Rennes 1
- 35042 Rennes Cedex
- France
| |
Collapse
|
64
|
Nocton G, Booth CH, Maron L, Ricard L, Andersen RA. Carbon–Hydrogen Bond Breaking and Making in the Open-Shell Singlet Molecule Cp*2Yb(4,7-Me2phen). Organometallics 2014. [DOI: 10.1021/om500843z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Grégory Nocton
- Laboratoire
de Chimie Moléculaire, CNRS, Ecole Polytechnique, Route
de Saclay, 91128 Palaiseau, France
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Corwin H. Booth
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Laurent Maron
- LPCNO,
UMR 5215, Université de Toulouse-CNRS, INSA, UPS, 31000 Toulouse, France
| | - Louis Ricard
- Laboratoire
de Chimie Moléculaire, CNRS, Ecole Polytechnique, Route
de Saclay, 91128 Palaiseau, France
| | - Richard A. Andersen
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| |
Collapse
|
65
|
Nocton G, Lukens WW, Booth CH, Rozenel SS, Medling SA, Maron L, Andersen RA. Reversible sigma C-C bond formation between phenanthroline ligands activated by (C5Me5)2Yb. J Am Chem Soc 2014; 136:8626-41. [PMID: 24852897 DOI: 10.1021/ja502271q] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The electronic structure and associated magnetic properties of the 1,10-phenanthroline adducts of Cp*2Yb are dramatically different from those of the 2,2'-bipyridine adducts. The monomeric phenanthroline adducts are ground state triplets that are based upon trivalent Yb(III), f(13), and (phen(•-) ) that are only weakly exchange coupled, which is in contrast to the bipyridine adducts whose ground states are multiconfigurational, open-shell singlets in which ytterbium is intermediate valent ( J. Am. Chem. Soc 2009 , 131 , 6480 ; J. Am. Chem. Soc 2010 , 132 , 17537 ). The origin of these different physical properties is traced to the number and symmetry of the LUMO and LUMO+1 of the heterocyclic diimine ligands. The bipy(•-) has only one π*1 orbital of b1 symmetry of accessible energy, but phen(•-) has two π* orbitals of b1 and a2 symmetry that are energetically accessible. The carbon pπ-orbitals have different nodal properties and coefficients and their energies, and therefore their populations change depending on the position and number of methyl substitutions on the ring. A chemical ramification of the change in electronic structure is that Cp*2Yb(phen) is a dimer when crystallized from toluene solution, but a monomer when sublimed at 180-190 °C. When 3,8-Me2phenanthroline is used, the adduct Cp*2Yb(3,8-Me2phen) exists in the solution in a dimer-monomer equilibrium in which ΔG is near zero. The adducts with 3-Me, 4-Me, 5-Me, 3,8-Me2, and 5,6-Me2-phenanthroline are isolated and characterized by solid state X-ray crystallography, magnetic susceptibility and LIII-edge XANES spectroscopy as a function of temperature and variable-temperature (1)H NMR spectroscopy.
Collapse
Affiliation(s)
- Grégory Nocton
- Laboratoire de Chimie Moléculaire, CNRS, Ecole Polytechnique , Palaiseau, France
| | | | | | | | | | | | | |
Collapse
|
66
|
Kefalidis CE, Essafi S, Perrin L, Maron L. Qualitative Estimation of the Single-Electron Transfer Step Energetics Mediated by Samarium(II) Complexes: A “SOMO–LUMO Gap” Approach. Inorg Chem 2014; 53:3427-33. [DOI: 10.1021/ic402837n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Christos E. Kefalidis
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
| | - Stéphanie Essafi
- School of Chemistry and
Centre for Computational Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Lionel Perrin
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
| | - Laurent Maron
- Université de Toulouse et CNRS, INSA, UPS, CNRS,
UMR 5215, LPCNO, 135 Avenue
de Rangueil, F-31077 Toulouse, France
| |
Collapse
|
67
|
Hickey AK, Crestani MG, Fout AR, Gao X, Chen CH, Mindiola DJ. Dehydrogenation of hydrocarbons with metal-carbon multiple bonds and trapping of a titanium(ii) intermediate. Dalton Trans 2014; 43:9834-7. [DOI: 10.1039/c4dt01037j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reacting (PNP)TiCHtBu(CH2tBu) with 2,2′-bipyridine (bipy) in cyclohexane or heptane results in dehydrogenation of the solvent, cleanly producing cyclohexene and 1-heptene, respectively, and a TiII intermediate that is trapped by bipy.
Collapse
Affiliation(s)
- Anne K. Hickey
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Marco G. Crestani
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Alison R. Fout
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Xinfeng Gao
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Chun-Hsing Chen
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Daniel J. Mindiola
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| |
Collapse
|
68
|
Castro L, Kefalidis CE, McKay D, Essafi S, Perrin L, Maron L. Theoretical treatment of one electron redox transformation of a small molecule using f-element complexes. Dalton Trans 2014; 43:12124-34. [DOI: 10.1039/c4dt01002g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations can provide useful insights into low-valent f-element single electron transfer reactivity.
Collapse
Affiliation(s)
| | | | - David McKay
- Institute of Chemical Sciences
- School of Engineering and Physical Sciences
- Heriot-Watt University
- Edinburgh, UK
| | - Stéphanie Essafi
- School of Chemistry and Centre for Computational Chemistry
- University of Bristol
- Bristol BS8 1TS, UK
| | | | | |
Collapse
|
69
|
Yang S, Zhu X, Zhou S, Wang S, Feng Z, Wei Y, Miao H, Guo L, Wang F, Zhang G, Gu X, Mu X. Synthesis, structure, and catalytic activity of novel trinuclear rare-earth metal amido complexes incorporating μ–η5:η1bonding indolyl and μ3-oxo groups. Dalton Trans 2014; 43:2521-33. [DOI: 10.1039/c3dt51107c] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
70
|
Kazhdan D, Rozenel SS. (2,2'-Bipyrid-yl-κ(2) N,N')bis-(η(5)-penta-methyl-cyclo-penta-dien-yl)barium. Acta Crystallogr Sect E Struct Rep Online 2013; 69:m429. [PMID: 24109262 PMCID: PMC3793675 DOI: 10.1107/s1600536813017170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 06/20/2013] [Indexed: 11/10/2022]
Abstract
In the title compound, [Ba(C10H15)2(C10H8N2)], the Ba—N distances are 2.798 (3) and 2.886 (3) Å, and the Cp ring centroid distances to Ba2+ are 2.7291 (7) and 2.7192 (9) Å. The angle between the N atoms in the bypyridine ligand and the metal ion is 56.80 (8)° and the N—C—C—N torsion angle in the bipyridine ligand is 1.7 (4)°. The bipyridine ligand is almost planar, the dihedral angle formed by the intersection of the planes defined by the pyridyl rings being 3.04 (19)°, and the angle between the plane defined by the Ba2+ ion and the two bipyridyl N atoms and the plane defined by the 12 atoms of the bipyridine ligand is 10.2 (3)°. The average Ba—N and Ba—centroid distances are 0.16 and 0.14 Å longer, respectively, than the equivalent distances in the isotypic strontium compound [Kazhdan et al. (2008 ▶). Acta Cryst. E64, m1134]. This difference is in accord with the difference between the ionic radii of 0.16 Å suggested by Shannon [Acta Cryst. (1976 ▶), A32, 751–767].
Collapse
Affiliation(s)
- Daniel Kazhdan
- Chemistry Department and Chemical Sciences Division of Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
| | | |
Collapse
|
71
|
Nocton G, Booth CH, Maron L, Andersen RA. Influence of the Torsion Angle in 3,3′-Dimethyl-2,2′-bipyridine on the Intermediate Valence of Yb in (C5Me5)2Yb(3,3′-Me2-bipy). Organometallics 2013. [DOI: 10.1021/om400528d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Grégory Nocton
- Laboratoire Hétéroéléments
et Coordination, CNRS, Ecole Polytechnique, Route de Saclay, 91128 Palaiseau, France
- Department of Chemistry, University of California—Berkeley, Berkeley, California 94720, United States
| | - Corwin H. Booth
- Chemical Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Laurent Maron
- LPCNO, UMR 5215,
Université de Toulouse-CNRS, INSA, UPS, Toulouse, France
| | - Richard A. Andersen
- Department of Chemistry, University of California—Berkeley, Berkeley, California 94720, United States
- LPCNO, UMR 5215,
Université de Toulouse-CNRS, INSA, UPS, Toulouse, France
| |
Collapse
|
72
|
Lv Y, Kefalidis CE, Zhou J, Maron L, Leng X, Chen Y. Versatile Reactivity of a Four-Coordinate Scandium Phosphinidene Complex: Reduction, Addition, and CO Activation Reactions. J Am Chem Soc 2013; 135:14784-96. [DOI: 10.1021/ja406413d] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingdong Lv
- State Key Laboratory
of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Christos E. Kefalidis
- LPCNO,
CNRS, and
INSA, Université Paul Sabatier, 135 Avenue de Rangueil, Toulouse 31077, France
| | - Jiliang Zhou
- State Key Laboratory
of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Laurent Maron
- LPCNO,
CNRS, and
INSA, Université Paul Sabatier, 135 Avenue de Rangueil, Toulouse 31077, France
| | - Xuebing Leng
- State Key Laboratory
of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Yaofeng Chen
- State Key Laboratory
of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| |
Collapse
|
73
|
Mrutu A, Barnes CL, Bart SC, Walensky JR. Bringing Redox Reactivity to a Redox Inactive Metal Center - E-I (E = C, Si) Bond Cleavage with a Thorium Bis(α-diimine) Complex. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300390] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
74
|
Basalov IV, Lyubov DM, Fukin GK, Cherkasov AV, Trifonov AA. Reactivity of Ytterbium(II) Hydride. Redox Reactions: Ytterbium(II) vs Hydrido Ligand. Metathesis of the Yb–H Bond. Organometallics 2013. [DOI: 10.1021/om400015k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ivan V. Basalov
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod,
Russia
| | - Dmitry M. Lyubov
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod,
Russia
| | - Georgy K. Fukin
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod,
Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod,
Russia
| | - Alexander A. Trifonov
- G. A. Razuvaev Institute
of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod,
Russia
| |
Collapse
|
75
|
Ren W, Lukens WW, Zi G, Maron L, Walter MD. Is the bipyridyl thorium metallocene a low-valent thorium complex? A combined experimental and computational study. Chem Sci 2013. [DOI: 10.1039/c2sc22013j] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
|
76
|
Mora E, Maria L, Biswas B, Camp C, Santos IC, Pécaut J, Cruz A, Carretas JM, Marçalo J, Mazzanti M. Diamine Bis(phenolate) as Supporting Ligands in Organoactinide(IV) Chemistry. Synthesis, Structural Characterization, and Reactivity of Stable Dialkyl Derivatives. Organometallics 2012. [DOI: 10.1021/om3010806] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Elsa Mora
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Leonor Maria
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Biplab Biswas
- Laboratoire de Reconnaissance
Ionique et Chimie de Coordination, SCIB, UMR-E CEA/UJF-Grenoble 1,
INAC, CEA-Grenoble, 38054 Grenoble Cedex
09, France
| | - Clément Camp
- Laboratoire de Reconnaissance
Ionique et Chimie de Coordination, SCIB, UMR-E CEA/UJF-Grenoble 1,
INAC, CEA-Grenoble, 38054 Grenoble Cedex
09, France
| | - Isabel C. Santos
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Jacques Pécaut
- Laboratoire de Reconnaissance
Ionique et Chimie de Coordination, SCIB, UMR-E CEA/UJF-Grenoble 1,
INAC, CEA-Grenoble, 38054 Grenoble Cedex
09, France
| | - Adelaide Cruz
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - José M. Carretas
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Joaquim Marçalo
- Unidade de Ciências Químicas e Radiofarmacêuticas, IST/ITN, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance
Ionique et Chimie de Coordination, SCIB, UMR-E CEA/UJF-Grenoble 1,
INAC, CEA-Grenoble, 38054 Grenoble Cedex
09, France
| |
Collapse
|
77
|
Dugan TR, Bill E, MacLeod KC, Christian GJ, Cowley RE, Brennessel WW, Ye S, Neese F, Holland PL. Reversible C–C Bond Formation between Redox-Active Pyridine Ligands in Iron Complexes. J Am Chem Soc 2012. [DOI: 10.1021/ja305679m] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Thomas R. Dugan
- Department of Chemistry, University of Rochester, Rochester, New York
| | - Eckhard Bill
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der
Ruhr, Germany
| | - K. Cory MacLeod
- Department of Chemistry, University of Rochester, Rochester, New York
| | - Gemma J. Christian
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der
Ruhr, Germany
| | - Ryan E. Cowley
- Department of Chemistry, University of Rochester, Rochester, New York
| | | | - Shengfa Ye
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der
Ruhr, Germany
| | - Frank Neese
- Max Planck Institute for Chemical Energy Conversion, Mülheim an der
Ruhr, Germany
| | | |
Collapse
|
78
|
Nocton G, Booth CH, Maron L, Andersen RA. Thermal Dihydrogen Elimination from Cp*2Yb(4,5-diazafluorene). Organometallics 2012. [DOI: 10.1021/om300876b] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Grégory Nocton
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United
States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Corwin H. Booth
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Laurent Maron
- LPCNO, UMR 5215, Université de Toulouse-CNRS, INSA, UPS, Toulouse,
France
| | - Richard A. Andersen
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United
States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| |
Collapse
|
79
|
Irwin M, Doyle LR, Krämer T, Herchel R, McGrady JE, Goicoechea JM. A Homologous Series of First-Row Transition-Metal Complexes of 2,2′-Bipyridine and their Ligand Radical Derivatives: Trends in Structure, Magnetism, and Bonding. Inorg Chem 2012; 51:12301-12. [DOI: 10.1021/ic301587f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark Irwin
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QR, U.K
| | - Laurence R. Doyle
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QR, U.K
| | - Tobias Krämer
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QR, U.K
| | - Radovan Herchel
- Regional Centre
of Advanced
Technologies and Materials, Department
of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, CZ-77146
Olomouc, Czech Republic
| | - John E. McGrady
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QR, U.K
| | - Jose M. Goicoechea
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1
3QR, U.K
| |
Collapse
|
80
|
Lukens WW, Magnani N, Booth CH. Application of the Hubbard model to Cp*(2)Yb(bipy), a model system for strong exchange coupling in lanthanide systems. Inorg Chem 2012; 51:10105-10. [PMID: 22988887 DOI: 10.1021/ic300037q] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Exchange coupling is quantified in lanthanide (Ln) single-molecule magnets (SMMs) containing a bridging N(2)(3-) radical ligand and between [Cp*(2)Yb](+) and bipy(•-) in Cp*(2)Yb(bipy), where Cp* is pentamethylcyclopentadienyl and bipy is 2,2'-bipyridyl. In the case of these lanthanide SMMs, the magnitude of exchange coupling between the Ln ion and the bridging N(2)(3-), 2J, is very similar to the barrier to magnetic relaxation, U(eff). A molecular version of the Hubbard model is applied to systems in which unpaired electrons on magnetic metal ions have direct overlap with unpaired electrons residing on ligands. The Hubbard model explicitly addresses electron correlation, which is essential for understanding the magnetic behavior of these complexes. This model is applied quantitatively to Cp*(2)Yb(bipy) to explain its very strong exchange coupling, 2J = -0.11 eV (-920 cm(-1)). The model is also used to explain the presence of strong exchange coupling in Ln SMMs in which the lanthanide spins are coupled via bridging N(2)(3-) radical ligands. The results suggest that increasing the magnetic coupling in lanthanide clusters could lead to an increase in the blocking temperatures of exchange-coupled lanthanide SMMs, suggesting routes to rational design of future lanthanide SMMs.
Collapse
Affiliation(s)
- Wayne W Lukens
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
| | | | | |
Collapse
|
81
|
Fedushkin IL, Maslova OV, Morozov AG, Dechert S, Demeshko S, Meyer F. Genuine Redox Isomerism in a Rare-Earth-Metal Complex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204452] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
82
|
Fedushkin IL, Maslova OV, Morozov AG, Dechert S, Demeshko S, Meyer F. Genuine Redox Isomerism in a Rare-Earth-Metal Complex. Angew Chem Int Ed Engl 2012; 51:10584-7. [DOI: 10.1002/anie.201204452] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 07/26/2012] [Indexed: 11/09/2022]
|
83
|
Páez-Hernández D, Arratia-Pérez R. Aromaticity, Optical Properties and Zero Field Splitting of Homo- and Hetero-bimetallic (C8H8)M(μ2–,η8═C8H8)M(C8H8) where M = Ti, Zr, Th Complexes. J Phys Chem A 2012; 116:7584-92. [DOI: 10.1021/jp3039576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dayán Páez-Hernández
- Departamento de Ciencias Químicas,
Facultad
de Ciencias Exactas, Universidad Andrés Bello, República 275, Santiago 8370146, Chile
| | - Ramiro Arratia-Pérez
- Departamento de Ciencias Químicas,
Facultad
de Ciencias Exactas, Universidad Andrés Bello, República 275, Santiago 8370146, Chile
| |
Collapse
|
84
|
Bandeira NAG, Daniel C, Trifonov A, Calhorda MJ. Electronic Structure of Ytterbium Bis-indenyl and -cyclopentadienyl α-Diimine Complexes: A DFT and MS-CASPT2 Investigation. Organometallics 2012. [DOI: 10.1021/om300081j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nuno A. G. Bandeira
- Departamento de Química
e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa,
Portugal
| | - Chantal Daniel
- Laboratoire de
Chimie Quantique,
Institut de Chimie, UMR 7177−CNRS/UDS, 4 Rue Blaise Pascal, B.P. 1032 F-67070 Cedex, Strasbourg, France
| | - Alexander Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, 603950 Nizhny Novgorod, GSP-445, Russia
| | - Maria José Calhorda
- Departamento de Química
e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa,
Portugal
| |
Collapse
|
85
|
Ren W, Zi G, Walter MD. Synthesis, Structure, and Reactivity of a Thorium Metallocene Containing a 2,2′-Bipyridyl Ligand. Organometallics 2012. [DOI: 10.1021/om201015f] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Wenshan Ren
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische
Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig,Germany
| |
Collapse
|
86
|
Mohammad A, Cladis DP, Forrest WP, Fanwick PE, Bart SC. Reductive heterocoupling mediated by Cp*2U(2,2′-bpy). Chem Commun (Camb) 2012; 48:1671-3. [DOI: 10.1039/c2cc16200h] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
87
|
Ren W, Song H, Zi G, Walter MD. A bipyridyl thorium metallocene: synthesis, structure and reactivity. Dalton Trans 2012; 41:5965-73. [DOI: 10.1039/c2dt00051b] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
88
|
Mukhopadhyay TK, Feller RK, Rein FN, Henson NJ, Smythe NC, Trovitch RJ, Gordon JC. Investigation of formally zerovalent Triphos iron complexes. Chem Commun (Camb) 2012; 48:8670-2. [DOI: 10.1039/c2cc33926a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
89
|
Camp C, Guidal V, Biswas B, Pécaut J, Dubois L, Mazzanti M. Multielectron redox chemistry of lanthanide Schiff-base complexes. Chem Sci 2012. [DOI: 10.1039/c2sc20476b] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have developed a new way to introduce redox events at lanthanide centers which should lead to further expansion of the reductive chemistry of lanthanides.
Collapse
Affiliation(s)
- Clément Camp
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Valentin Guidal
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Biplab Biswas
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Jacques Pécaut
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Lionel Dubois
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination
- Service de Chimie Inorganique et Biologique (UMR-E CEA/UJF-Grenoble 1)
- CEA-Grenoble
- INAC
- GRENOBLE F-38054
| |
Collapse
|
90
|
Caulton KG. Systematics and Future Projections Concerning Redox‐Noninnocent Amide/Imine Ligands. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100623] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kenneth G. Caulton
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405, USA, Fax: +1‐812‐855‐0985
| |
Collapse
|
91
|
Antunes MA, Pereira LCJ, Santos IC, Mazzanti M, Marçalo J, Almeida M. [U(TpMe2)2(bipy)]+: A Cationic Uranium(III) Complex with Single-Molecule-Magnet Behavior. Inorg Chem 2011; 50:9915-7. [DOI: 10.1021/ic200705p] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Maria A. Antunes
- Unidade de Ciências Químicas e Radiofarmacêuticas, Instituto Tecnológico e Nuclear/CFMCUL, P-2686-953 Sacavém, Portugal
| | - Laura C. J. Pereira
- Unidade de Ciências Químicas e Radiofarmacêuticas, Instituto Tecnológico e Nuclear/CFMCUL, P-2686-953 Sacavém, Portugal
| | - Isabel C. Santos
- Unidade de Ciências Químicas e Radiofarmacêuticas, Instituto Tecnológico e Nuclear/CFMCUL, P-2686-953 Sacavém, Portugal
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination, Service de Chimie Inorganique et Biologique, UMR-E 3 CEA/UJF, FRE3200 CNRS, INAC, CEA-Grenoble, F-38054 Grenoble Cedex 09, France
| | - Joaquim Marçalo
- Unidade de Ciências Químicas e Radiofarmacêuticas, Instituto Tecnológico e Nuclear/CFMCUL, P-2686-953 Sacavém, Portugal
| | - Manuel Almeida
- Unidade de Ciências Químicas e Radiofarmacêuticas, Instituto Tecnológico e Nuclear/CFMCUL, P-2686-953 Sacavém, Portugal
| |
Collapse
|
92
|
Trifonov AA, Shestakov BG, Lyssenko KA, Larionova J, Fukin GK, Cherkasov AV. Sterically Governed Redox Reactions. One-Electron Oxidation of Ytterbocenes by Diazabutadienes: Formation of Radical-Anionic Diazabutadiene vs Covalently Bonded Imino–Amido Ligand. Organometallics 2011. [DOI: 10.1021/om200429h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Alexander A. Trifonov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Boris G. Shestakov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Konstantin A. Lyssenko
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova str. 28, 117813 Moscow, Russia
| | - Joulia Larionova
- Institut Charles Gerhardt Montpellier, UMR5253 CNRS-UM2-ENSCM-UM1, Chimie Moléculaire et Organisation du Solide, Université Montpellier 2, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Georgy K. Fukin
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| | - Anton V. Cherkasov
- G. A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina 49, GSP-445, 603950 Nizhny Novgorod, Russia
| |
Collapse
|
93
|
Scarborough CC, Wieghardt K. Electronic structure of 2,2'-bipyridine organotransition-metal complexes. Establishing the ligand oxidation level by density functional theoretical calculations. Inorg Chem 2011; 50:9773-93. [PMID: 21678919 DOI: 10.1021/ic2005419] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A density functional theoretical (DFT) study (B3LYP) has been carried out on 20 organometallic complexes containing η(5)- and/or η(3)-coordinated cyclopentadienyl anions (Cp(-)) and 2,2'-bipyridine (bpy) ligand(s) at varying oxidation levels, i.e., as the neutral ligand (bpy(0)), as the π-radical monoanion (bpy(•-))(-), or as the diamagnetic dianion (bpy(2-))(2-). The molecular and electronic structures of these species in their ground states and, in some cases, their first excited states have been calculated using broken-symmetry methodology. The results are compared with experimental structural and spectroscopic data (where available) in order to validate the DFT computational approach. The following electron-transfer series and complexes have been studied: [(Cp)(2)V(bpy)](0,+,2+) (1-3), [(Cp)(2)Ti(bpy)](-,0,+,2+) (4-7), [(Cp)(2)Ti(biquinoline)](0,+) (8 and 9), [(Cp*)(2)Ti(bpy)](0) (10) (Cp* = pentamethylcyclopentadienyl anion), [Cp*Co(bpy)](0,+) (11 and 12), [Cp*Co(bpy)Cl](+,0) (13 and 14), [Fe(toluene)(bpy)](0) (15), [Cp*Ru(bpy)](-) (16), [(Cp)(2)Zr(bpy)](0) (17), and [Mn(CO)(3)(bpy)](-) (18). In order to test the predictive power of our computations, we have also calculated the molecular and electronic structures of two complexes, A and B, namely, the diamagnetic dimer [Cp*Sc(bpy)(μ-Cl)](2) (A) and the paramagnetic (at 25 °C) mononuclear species [(η(5)-C(5)H(4)(CH(2))(2)N(CH(3))(2))Sc((m)bpy)(2)] (B). The crystallographically observed intramolecular π-π interaction of two N,N'-coordinated π-radical anions in A leading to an S = 0 ground state is reliably reproduced. Similarly, the small singlet-triplet gap of ~600 cm(-1) between two antiferromagnetically coupled (bpy(•-))(-) ligands in B, two ferromagnetically coupled radical anions in the triplet excited state of B, and the structures of A and B is reproduced. Therefore, we are confident that we can present computationally obtained, detailed electronic structures for complexes 1-18. We show that N,N'-coordinated neutral bpy(0) ligands behave as very weak π acceptors (if at all), whereas the (bpy(2-))(2-) dianions are strong π-donor ligands.
Collapse
Affiliation(s)
- Christopher C Scarborough
- Max-Planck-Institut für Bioanorganische Chemie, Stiftstrasse 34-36, D-45470 Mülheim an der Ruhr, Germany
| | | |
Collapse
|
94
|
MacDonald MR, Ziller JW, Evans WJ. Coordination and Reductive Chemistry of Tetraphenylborate Complexes of Trivalent Rare Earth Metallocene Cations, [(C5Me5)2Ln][(μ-Ph)2BPh2]. Inorg Chem 2011; 50:4092-106. [DOI: 10.1021/ic2000409] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew R. MacDonald
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| |
Collapse
|
95
|
Trifonov AA, Shestakov BG, Gudilenkov ID, Fukin GK, Giambastiani G, Bianchini C, Rossin A, Luconi L, Filippi J, Sorace L. Steric control on the redox chemistry of (η5-C9H7)2YbII(THF)2 by 6-aryl substituted iminopyridines. Dalton Trans 2011; 40:10568-75. [DOI: 10.1039/c1dt10135h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
96
|
Takase MK, Fang M, Ziller JW, Furche F, Evans WJ. Reduction chemistry of the mixed ligand metallocene [(C5Me5)(C8H8)U]2(μ-C8H8) with bipyridines. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.07.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
97
|
Booth CH, Kazhdan D, Werkema EL, Walter MD, Lukens WW, Bauer ED, Hu YJ, Maron L, Eisenstein O, Head-Gordon M, Andersen RA. Intermediate-valence tautomerism in decamethylytterbocene complexes of methyl-substituted bipyridines. J Am Chem Soc 2010; 132:17537-49. [PMID: 21090709 DOI: 10.1021/ja106902s] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Multiconfigurational, intermediate valent ground states are established in several methyl-substituted bipyridine complexes of bis(pentamethylcyclopentadienyl)ytterbium, Cp2*Yb (Me(x)-bipy). In contrast to Cp2*Yb(bipy) and other substituted-bipy complexes, the nature of both the ground state and the first excited state are altered by changing the position of the methyl or dimethyl substitutions on the bipyridine rings. In particular, certain substitutions result in multiconfigurational, intermediate valent open-shell singlet states in both the ground state and the first excited state. These conclusions are reached after consideration of single-crystal X-ray diffraction (XRD), the temperature dependence of X-ray absorption near-edge structure (XANES), extended X-ray absorption fine-structure (EXAFS), and magnetic susceptibility data, and are supported by CASSCF-MP2 calculations. These results place the various Cp2*Yb(bipy) complexes in a new tautomeric class, that is, intermediate-valence tautomers.
Collapse
Affiliation(s)
- Corwin H Booth
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
98
|
Williams BN, Huang W, Miller KL, Diaconescu PL. Group 3 Metal Complexes of Radical-Anionic 2,2′-Bipyridyl Ligands. Inorg Chem 2010; 49:11493-8. [DOI: 10.1021/ic101493k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bryan N. Williams
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Wenliang Huang
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Kevin L. Miller
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Paula L. Diaconescu
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, United States
| |
Collapse
|
99
|
Air-stable helical bis(cyclopentadienylphosphazene) complexes of divalent ytterbium. MENDELEEV COMMUNICATIONS 2010. [DOI: 10.1016/j.mencom.2010.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
100
|
Coreno M, de Simone M, Coates R, Denning MS, Denning RG, Green JC, Hunston C, Kaltsoyannis N, Sella A. Variable Photon Energy Photoelectron Spectroscopy and Magnetism of YbCp3 and LuCp3. Organometallics 2010. [DOI: 10.1021/om100240m] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcello Coreno
- CNR-IMIP, GasPhase Beamline@Elettra and Monterotondo, 00016 Roma, Italy
| | | | - Rosemary Coates
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, U.K
| | - Mark S. Denning
- Department of Chemistry, Oxford University, South Parks Road, Oxford OX1 3QR, U.K
| | - Robert G. Denning
- Department of Chemistry, Oxford University, South Parks Road, Oxford OX1 3QR, U.K
| | - Jennifer C. Green
- Department of Chemistry, Oxford University, South Parks Road, Oxford OX1 3QR, U.K
| | - Charlene Hunston
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, U.K
| | - Nikolas Kaltsoyannis
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, U.K
| | - Andrea Sella
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, U.K
| |
Collapse
|