51
|
Lannes A, Intissar M, Suffren Y, Reber C, Luneau D. Terbium(III) and Yttrium(III) Complexes with Pyridine-Substituted Nitronyl Nitroxide Radical and Different β-Diketonate Ligands. Crystal Structures and Magnetic and Luminescence Properties. Inorg Chem 2014; 53:9548-60. [DOI: 10.1021/ic500779y] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anthony Lannes
- Laboratoire des
Multimatériaux et Interfaces (UMR 5616), Université Claude Bernard Lyon 1, Campus de la Doua, 69622, Villeurbanne
Cedex, France
| | - Mourad Intissar
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Yan Suffren
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Dominique Luneau
- Laboratoire des
Multimatériaux et Interfaces (UMR 5616), Université Claude Bernard Lyon 1, Campus de la Doua, 69622, Villeurbanne
Cedex, France
| |
Collapse
|
52
|
Affiliation(s)
- Douglas R Kindra
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | | |
Collapse
|
53
|
Fukuda T, Shigeyoshi N, Yamamura T, Ishikawa N. Magnetic Relaxations Arising from Spin–Phonon Interactions in the Nonthermally Activated Temperature Range for a Double-Decker Terbium Phthalocyanine Single Molecule Magnet. Inorg Chem 2014; 53:9080-6. [DOI: 10.1021/ic501028f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Takamitsu Fukuda
- Department of Chemistry,
Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Natsuko Shigeyoshi
- Department of Chemistry,
Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Tomoo Yamamura
- Laboratory
of Alpha-Ray Emitters, Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Naoto Ishikawa
- Department of Chemistry,
Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| |
Collapse
|
54
|
Hashem E, Platts JA, Hartl F, Lorusso G, Evangelisti M, Schulzke C, Baker RJ. Thiocyanate complexes of uranium in multiple oxidation states: a combined structural, magnetic, spectroscopic, spectroelectrochemical, and theoretical study. Inorg Chem 2014; 53:8624-37. [PMID: 25072532 DOI: 10.1021/ic501236j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A comprehensive study of the complexes A4[U(NCS)8] (A = Cs, Et4N, (n)Bu4N) and A3[UO2(NCS)5] (A = Cs, Et4N) is described, with the crystal structures of [(n)Bu4N]4[U(NCS)8]·2MeCN and Cs3[UO2(NCS)5]·O0.5 reported. The magnetic properties of square antiprismatic Cs4[U(NCS)8] and cubic [Et4N]4[U(NCS)8] have been probed by SQUID magnetometry. The geometry has an important impact on the low-temperature magnetic moments: at 2 K, μeff = 1.21 μB and 0.53 μB, respectively. Electronic absorption and photoluminescence spectra of the uranium(IV) compounds have been measured. The redox chemistry of [Et4N]4[U(NCS)8] has been explored using IR and UV-vis spectroelectrochemical methods. Reversible 1-electron oxidation of one of the coordinated thiocyanate ligands occurs at +0.22 V vs Fc/Fc(+), followed by an irreversible oxidation to form dithiocyanogen (NCS)2 which upon back reduction regenerates thiocyanate anions coordinating to UO2(2+). NBO calculations agree with the experimental spectra, suggesting that the initial electron loss of [U(NCS)8](4-) is delocalized over all NCS(-) ligands. Reduction of the uranyl(VI) complex [Et4N]3[UO2(NCS)5] to uranyl(V) is accompanied by immediate disproportionation and has only been studied by DFT methods. The bonding in [An(NCS)8](4-) (An = Th, U) and [UO2(NCS)5](3-) has been explored by a combination of DFT and QTAIM analysis, and the U-N bonds are predominantly ionic, with the uranyl(V) species more ionic that the uranyl(VI) ion. Additionally, the U(IV)-NCS ion is more ionic than what was found for U(IV)-Cl complexes.
Collapse
Affiliation(s)
- Emtithal Hashem
- School of Chemistry, University of Dublin, Trinity College , College Green, Dublin 2, Ireland
| | | | | | | | | | | | | |
Collapse
|
55
|
Kharissova OV, Méndez-Rojas MA, Kharisov BI, Méndez UO, Martínez PE. Metal complexes containing natural and and artificial radioactive elements and their applications. Molecules 2014; 19:10755-802. [PMID: 25061724 PMCID: PMC6272025 DOI: 10.3390/molecules190810755] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/09/2014] [Accepted: 07/11/2014] [Indexed: 12/13/2022] Open
Abstract
Recent advances (during the 2007–2014 period) in the coordination and organometallic chemistry of compounds containing natural and artificially prepared radionuclides (actinides and technetium), are reviewed. Radioactive isotopes of naturally stable elements are not included for discussion in this work. Actinide and technetium complexes with O-, N-, N,O, N,S-, P-containing ligands, as well π-organometallics are discussed from the view point of their synthesis, properties, and main applications. On the basis of their properties, several mono-, bi-, tri-, tetra- or polydentate ligands have been designed for specific recognition of some particular radionuclides, and can be used in the processes of nuclear waste remediation, i.e., recycling of nuclear fuel and the separation of actinides and fission products from waste solutions or for analytical determination of actinides in solutions; actinide metal complexes are also usefulas catalysts forcoupling gaseous carbon monoxide, as well as antimicrobial and anti-fungi agents due to their biological activity. Radioactive labeling based on the short-lived metastable nuclide technetium-99m (99mTc) for biomedical use as heart, lung, kidney, bone, brain, liver or cancer imaging agents is also discussed. Finally, the promising applications of technetium labeling of nanomaterials, with potential applications as drug transport and delivery vehicles, radiotherapeutic agents or radiotracers for monitoring metabolic pathways, are also described.
Collapse
Affiliation(s)
- Oxana V Kharissova
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Miguel A Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas Puebla, Sta. Catarina Mártir, Cholula, Puebla. C.P. 72810, Mexico
| | - Boris I Kharisov
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico.
| | - Ubaldo Ortiz Méndez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| | - Perla Elizondo Martínez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, Monterrey, N.L. C.P. 66450, Mexico
| |
Collapse
|
56
|
Thorocene adducts of the neutral 2,2′-bipyridine and its radical anion. Synthesis and crystal structures of [Th(η8-C8H8)2(κ2-bipy)] and [Th(μ-η8:η5-C8H8)2(κ2-bipy)K(py)2]∞. CR CHIM 2014. [DOI: 10.1016/j.crci.2013.09.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
57
|
Cooper O, Camp C, Pécaut J, Kefalidis CE, Maron L, Gambarelli S, Mazzanti M. Multimetallic Cooperativity in Uranium-Mediated CO2 Activation. J Am Chem Soc 2014; 136:6716-23. [DOI: 10.1021/ja5017624] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Oliver Cooper
- Service
de Chimie Inorganique et Biologique (SCIB), Institut Nanosciences
et Cryogénie (INAC), CEA, F-38054 Grenoble, France
| | - Clément Camp
- Service
de Chimie Inorganique et Biologique (SCIB), Institut Nanosciences
et Cryogénie (INAC), CEA, F-38054 Grenoble, France
| | - Jacques Pécaut
- Service
de Chimie Inorganique et Biologique (SCIB), Institut Nanosciences
et Cryogénie (INAC), CEA, F-38054 Grenoble, France
| | - Christos E. Kefalidis
- Laboratoire
de Physique et Chimie des Nano-Objets (LPCNO), Université Toulouse III Paul Sabatier (UPS), Université de Toulouse, CNRS, Institut National des Sciences Appliquées (INSA), 135 Avenue de
Rangueil, F-31077 Toulouse, France
| | - Laurent Maron
- Laboratoire
de Physique et Chimie des Nano-Objets (LPCNO), Université Toulouse III Paul Sabatier (UPS), Université de Toulouse, CNRS, Institut National des Sciences Appliquées (INSA), 135 Avenue de
Rangueil, F-31077 Toulouse, France
| | - Serge Gambarelli
- Service
de Chimie Inorganique et Biologique (SCIB), Institut Nanosciences
et Cryogénie (INAC), CEA, F-38054 Grenoble, France
| | - Marinella Mazzanti
- Service
de Chimie Inorganique et Biologique (SCIB), Institut Nanosciences
et Cryogénie (INAC), CEA, F-38054 Grenoble, France
| |
Collapse
|
58
|
Meihaus KR, Minasian SG, Lukens WW, Kozimor SA, Shuh DK, Tyliszczak T, Long JR. Influence of Pyrazolate vs N-Heterocyclic Carbene Ligands on the Slow Magnetic Relaxation of Homoleptic Trischelate Lanthanide(III) and Uranium(III) Complexes. J Am Chem Soc 2014; 136:6056-68. [DOI: 10.1021/ja501569t] [Citation(s) in RCA: 191] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Katie R. Meihaus
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Stefan G. Minasian
- Chemical
Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Wayne W. Lukens
- Chemical
Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stosh A. Kozimor
- Chemistry
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - David K. Shuh
- Chemical
Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Tolek Tyliszczak
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Materials
Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| |
Collapse
|
59
|
Ungur L, Le Roy JJ, Korobkov I, Murugesu M, Chibotaru LF. Fine-tuning the Local Symmetry to Attain Record Blocking Temperature and Magnetic Remanence in a Single-Ion Magnet. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310451] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
60
|
Ungur L, Le Roy JJ, Korobkov I, Murugesu M, Chibotaru LF. Fine-tuning the Local Symmetry to Attain Record Blocking Temperature and Magnetic Remanence in a Single-Ion Magnet. Angew Chem Int Ed Engl 2014; 53:4413-7. [DOI: 10.1002/anie.201310451] [Citation(s) in RCA: 332] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/06/2014] [Indexed: 11/11/2022]
|
61
|
Pedersen KS, Bendix J, Clérac R. Single-molecule magnet engineering: building-block approaches. Chem Commun (Camb) 2014; 50:4396-415. [PMID: 24626635 DOI: 10.1039/c4cc00339j] [Citation(s) in RCA: 235] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Tailoring the specific magnetic properties of any material relies on the topological control of the constituent metal ion building blocks. Although this general approach does not seem to be easily applied to traditional inorganic bulk magnets, coordination chemistry offers a unique tool to delicately tune, for instance, the properties of molecules that behave as "magnets", the so-called single-molecule magnets (SMMs). Although many interesting SMMs have been prepared by a more or less serendipitous approach, the assembly of predesigned, isolatable molecular entities into higher nuclearity complexes constitutes an elegant and fascinating strategy. This Feature article focuses on the use of building blocks or modules (both terms being used indiscriminately) to direct the structure, and therefore also the magnetic properties, of metal ion complexes exhibiting SMM behaviour.
Collapse
|
62
|
Kiernicki JJ, Newell BS, Matson EM, Anderson NH, Fanwick PE, Shores MP, Bart SC. Multielectron C-O bond activation mediated by a family of reduced uranium complexes. Inorg Chem 2014; 53:3730-41. [PMID: 24611564 DOI: 10.1021/ic500012x] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A family of cyclopentadienyl uranium complexes supported by the redox-active pyridine(diimine) ligand, (Mes)PDI(Me) ((Mes)PDI(Me) = 2,6-((Mes)N═CMe)2-C5H3N, Mes = 2,4,6-trimethylphenyl), has been synthesized. Using either Cp* or Cp(P) (Cp* = 1,2,3,4,5-pentamethylcyclopentadienide, Cp(P) = 1-(7,7-dimethylbenzyl)cyclopentadienide), uranium complexes of the type Cp(X)UI2((Mes)PDI(Me)) (1-Cp(X); X = * or P), Cp(X)UI((Mes)PDI(Me)) (2-Cp(X)), and Cp(X)U((Mes)PDI(Me))(THF)n (3-Cp(X); *, n = 1; P, n = 0) were isolated and characterized. The series was generated via ligand centered reduction events; thus the extent of (Mes)PDI(Me) reduction varies in each case, but the uranium(IV) oxidation state is maintained. Treating 2-Cp(X), which has a doubly reduced (Mes)PDI(Me), with furfural results in radical coupling between the substrate and (Mes)PDI(Me), leading to C-C bond formation to form Cp(X)UI((Mes)PDI(Me)-CHOC4H3O) (4-Cp(X)). Exposure of 3-Cp* and 3-Cp(P), which contain a triply reduced (Mes)PDI(Me) ligand, to benzaldehyde and benzophenone, respectively, results in the corresponding pinacolate complexes Cp*U(O2C2Ph2H2)((Mes)PDI(Me)) (5-Cp*) and Cp(P)U(O2C2Ph4)((Mes)PDI(Me)) (5-Cp(P)). The reducing equivalents required for this coupling are derived solely from the redox-active ligand, rather than the uranium center. Complexes 1-5 have been characterized by (1)H NMR and electronic absorption spectroscopies, and SQUID magnetometry was employed to confirm the mono(anionic) [(Mes)PDI(Me)](-) ligand in 1-Cp(P) and 5-Cp(P). Structural parameters of complexes 1-Cp(P), 2-Cp(X), 4-Cp*, and 5-Cp(X) have been elucidated by X-ray crystallography.
Collapse
Affiliation(s)
- John J Kiernicki
- H.C. Brown Laboratory, Department of Chemistry, Purdue University , West Lafayette, Indiana 47906, United States
| | | | | | | | | | | | | |
Collapse
|
63
|
Mougel V, Chatelain L, Hermle J, Caciuffo R, Colineau E, Tuna F, Magnani N, de Geyer A, Pécaut J, Mazzanti M. A uranium-based UO2(+)-Mn2+ single-chain magnet assembled trough cation-cation interactions. Angew Chem Int Ed Engl 2014; 53:819-23. [PMID: 24311434 PMCID: PMC4232274 DOI: 10.1002/anie.201307366] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Indexed: 01/07/2023]
Abstract
Single-chain magnets (SCMs) are materials composed of magnetically isolated one-dimensional (1D) units exhibiting slow relaxation of magnetization. The occurrence of SCM behavior requires the fulfillment of stringent conditions for exchange and anisotropy interactions. Herein, we report the synthesis, the structure, and the magnetic characterization of the first actinide-containing SCM. The 5f-3d heterometallic 1D chains [{[UO2(salen)(py)][M(py)4](NO3)}]n, (M=Cd (1) and M=Mn (2); py=pyridine) are assembled trough cation-cation interaction from the reaction of the uranyl(V) complex [UO2(salen)py][Cp*2Co] (Cp*=pentamethylcyclopentadienyl) with Cd(NO3)2 or Mn(NO3)2 in pyridine. The infinite UMn chain displays a high relaxation barrier of 134±0.8 K (93±0.5 cm(-1)), probably as a result of strong intra-chain magnetic interactions combined with the high Ising anisotropy of the uranyl(V) dioxo group. It also exhibits an open magnetic hysteresis loop at T<6 K, with an impressive coercive field of 3.4 T at 2 K.
Collapse
Affiliation(s)
- Victor Mougel
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination SCIBUMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| | - Lucile Chatelain
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination SCIBUMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| | - Johannes Hermle
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination SCIBUMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| | - Roberto Caciuffo
- European CommissionJoint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125 Karlsruhe (Germany)
| | - Eric Colineau
- European CommissionJoint Research Centre, Institute for Transuranium Elements, P.O. Box 2340, 76125 Karlsruhe (Germany)
| | - Floriana Tuna
- EPSRC UK EPR FacilitySchool of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL (UK)
| | - Nicola Magnani
- Institute of NanotechnologyKarlsruhe Institute of Technology, Hermann-von-Helmholtz Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)
| | - Arnaud de Geyer
- Service Général des Rayons XSP2M, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| | - Jacques Pécaut
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination SCIBUMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance Ionique et Chimie de Coordination SCIBUMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 09 (France)
| |
Collapse
|
64
|
|
65
|
Coutinho JT, Antunes MA, Pereira LCJ, Marçalo J, Almeida M. Zero-field slow magnetic relaxation in a uranium(iii) complex with a radical ligand. Chem Commun (Camb) 2014; 50:10262-4. [DOI: 10.1039/c4cc04486j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single-molecule-magnet behaviour in [U(TpMe2)2(bipy˙)], a U(iii) complex with a radical bipyridine ligand, having magnetic contributions from both the metal and the ligand.
Collapse
Affiliation(s)
- Joana T. Coutinho
- Centro de Ciências e Tecnologias Nucleares (C2TN)/CFMCUL
- Instituto Superior Técnico
- Universidade de Lisboa
- , Portugal
| | - Maria A. Antunes
- Centro de Ciências e Tecnologias Nucleares (C2TN)/CFMCUL
- Instituto Superior Técnico
- Universidade de Lisboa
- , Portugal
| | - Laura C. J. Pereira
- Centro de Ciências e Tecnologias Nucleares (C2TN)/CFMCUL
- Instituto Superior Técnico
- Universidade de Lisboa
- , Portugal
| | - Joaquim Marçalo
- Centro de Ciências e Tecnologias Nucleares (C2TN)/CFMCUL
- Instituto Superior Técnico
- Universidade de Lisboa
- , Portugal
| | - Manuel Almeida
- Centro de Ciências e Tecnologias Nucleares (C2TN)/CFMCUL
- Instituto Superior Técnico
- Universidade de Lisboa
- , Portugal
| |
Collapse
|
66
|
Magnani N, Colineau E, Griveau JC, Apostolidis C, Walter O, Caciuffo R. A plutonium-based single-molecule magnet. Chem Commun (Camb) 2014; 50:8171-3. [DOI: 10.1039/c4cc03400g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
67
|
Saber MR, Dunbar KR. Trigonal bipyramidal 5d–4f molecules with SMM behavior. Chem Commun (Camb) 2014; 50:2177-9. [DOI: 10.1039/c3cc49124b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family of trigonal bipyramidal (TBP) 5d–4f cyanide bridged aggregates have been synthesized that exhibit slow relaxation of the magnetization below 4 K as indicated by a signal in the out-of-phase ac susceptibility data under zero field.
Collapse
Affiliation(s)
| | - Kim R. Dunbar
- Department of Chemistry
- Texas A&M University
- College Station, USA
| |
Collapse
|
68
|
Silva MR, Martín-Ramos P, Coutinho JT, Pereira LCJ, Martín-Gil J. Effect of the capping ligand on luminescent erbium(iii) β-diketonate single-ion magnets. Dalton Trans 2014; 43:6752-61. [DOI: 10.1039/c4dt00168k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
69
|
Girginova PI, Pereira LCJ, Coutinho JT, Santos IC, Almeida M. Slow magnetic relaxation in lanthanide ladder type coordination polymers. Dalton Trans 2014; 43:1897-905. [DOI: 10.1039/c3dt52748d] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
70
|
Singh SK, Gupta T, Shanmugam M, Rajaraman G. Unprecedented magnetic relaxation via the fourth excited state in low-coordinate lanthanide single-ion magnets: a theoretical perspective. Chem Commun (Camb) 2014; 50:15513-6. [DOI: 10.1039/c4cc05522e] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
How to enhance the barrier heights in lanthanide based SIMs? Using ab initio calculations, we have explored the role of symmetry and the coordination number on the magnetization dynamics of four three-coordinate Ln(iii) SIMs.
Collapse
Affiliation(s)
| | - Tulika Gupta
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai, India
| | | | - Gopalan Rajaraman
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai, India
| |
Collapse
|
71
|
Mougel V, Chatelain L, Hermle J, Caciuffo R, Colineau E, Tuna F, Magnani N, de Geyer A, Pécaut J, Mazzanti M. A Uranium-Based UO2+-Mn2+Single-Chain Magnet Assembled trough Cation-Cation Interactions. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307366] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
72
|
Martín-Ramos P, Ramos Silva M, Coutinho JT, Pereira LCJ, Chamorro-Posada P, Martín-Gil J. Single-Ion Magnetism in a Luminescent Er3+β-Diketonato Complex with Multiple Relaxation Mechanisms. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301076] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
73
|
Baldoví JJ, Clemente-Juan JM, Coronado E, Gaita-Ariño A. Two pyrazolylborate dysprosium(III) and neodymium(III) single ion magnets modeled by a Radial Effective Charge approach. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.01.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
74
|
Cation‐Mediated Conversion of the State of Charge in Uranium Arene Inverted‐Sandwich Complexes. Chemistry 2013; 19:17528-40. [DOI: 10.1002/chem.201302752] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Indexed: 11/07/2022]
|
75
|
Hino S, Maeda M, Kataoka Y, Nakano M, Yamamura T, Kajiwara T. SMM Behavior Observed in Ce(III)Zn(II)2 Linear Trinuclear Complex. CHEM LETT 2013. [DOI: 10.1246/cl.130602] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
76
|
Monteiro B, Pereira CCL, Coutinho JT, Pereira LCJ, Marçalo J, Almeida M. A 2D Layered Lanthanide Hydroxide Showing Slow Relaxation of Magnetization - Dy8(OH)20Cl4·6H2O. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300793] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
77
|
Martínez-Lillo J, Mastropietro TF, Lhotel E, Paulsen C, Cano J, De Munno G, Faus J, Lloret F, Julve M, Nellutla S, Krzystek J. Highly Anisotropic Rhenium(IV) Complexes: New Examples of Mononuclear Single-Molecule Magnets. J Am Chem Soc 2013; 135:13737-48. [DOI: 10.1021/ja403154z] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- José Martínez-Lillo
- Departament
de Química Inorgànica/Instituto de Ciencia Molecular
(ICMol), Universitat de València, C/Catedrático José
Beltrán 2, 46980 Paterna (València), Spain
| | - Teresa F. Mastropietro
- Centro
di Eccellenza CEMIF.CAL, Dipartimento di Chimica, Università della Calabria, 87030 Arcavacata di Rende, Cosenza, Italy
| | - Elsa Lhotel
- Institut Néel-CNRS, BP
166, 25 Avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Carley Paulsen
- Institut Néel-CNRS, BP
166, 25 Avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Joan Cano
- Departament
de Química Inorgànica/Instituto de Ciencia Molecular
(ICMol), Universitat de València, C/Catedrático José
Beltrán 2, 46980 Paterna (València), Spain
- Fundació
General de la Universitat de València (FGUV), Universitat de València, 46010 València, Spain
| | - Giovanni De Munno
- Centro
di Eccellenza CEMIF.CAL, Dipartimento di Chimica, Università della Calabria, 87030 Arcavacata di Rende, Cosenza, Italy
| | - Juan Faus
- Departament
de Química Inorgànica/Instituto de Ciencia Molecular
(ICMol), Universitat de València, C/Catedrático José
Beltrán 2, 46980 Paterna (València), Spain
| | - Francesc Lloret
- Departament
de Química Inorgànica/Instituto de Ciencia Molecular
(ICMol), Universitat de València, C/Catedrático José
Beltrán 2, 46980 Paterna (València), Spain
| | - Miguel Julve
- Departament
de Química Inorgànica/Instituto de Ciencia Molecular
(ICMol), Universitat de València, C/Catedrático José
Beltrán 2, 46980 Paterna (València), Spain
| | - Saritha Nellutla
- National
High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| | - J. Krzystek
- National
High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| |
Collapse
|
78
|
Titos-Padilla S, Ruiz J, Herrera JM, Brechin EK, Wersndorfer W, Lloret F, Colacio E. Dilution-Triggered SMM Behavior under Zero Field in a Luminescent Zn2Dy2 Tetranuclear Complex Incorporating Carbonato-Bridging Ligands Derived from Atmospheric CO2 Fixation. Inorg Chem 2013; 52:9620-6. [DOI: 10.1021/ic401378k] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Silvia Titos-Padilla
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071
Granada, Spain
| | - José Ruiz
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071
Granada, Spain
| | - Juan Manuel Herrera
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071
Granada, Spain
| | - Euan K. Brechin
- EaStCHEM
School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, U.K
| | | | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMOL), Universitat de València, 46980 Paterna, València,
Spain
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avenida Fuentenueva s/n, 18071
Granada, Spain
| |
Collapse
|
79
|
Camp C, Pécaut J, Mazzanti M. Tuning Uranium–Nitrogen Multiple Bond Formation with Ancillary Siloxide Ligands. J Am Chem Soc 2013; 135:12101-11. [DOI: 10.1021/ja405815b] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Clément Camp
- Laboratoire de Reconnaissance
Ionique et Chimie de
Coordination, SCIB, UMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble Cedex 09
| | - Jacques Pécaut
- Laboratoire de Reconnaissance
Ionique et Chimie de
Coordination, SCIB, UMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble Cedex 09
| | - Marinella Mazzanti
- Laboratoire de Reconnaissance
Ionique et Chimie de
Coordination, SCIB, UMR-E3 CEA-UJF, INAC, CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble Cedex 09
| |
Collapse
|
80
|
Ishikawa R, Miyamoto R, Nojiri H, Breedlove BK, Yamashita M. Slow Relaxation of the Magnetization of an MnIII Single Ion. Inorg Chem 2013; 52:8300-2. [DOI: 10.1021/ic401351w] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryuta Ishikawa
- Department of Chemistry, Graduate School of
Science, Tohoku University, 6-3 Aramaki-Aza-Aoba,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Ryo Miyamoto
- Department of Materials Science and Technology, Faculty
of Science and Technology, Hirosaki University, Bunkyo-cho, Hirosaki, Aomori 036-856, Japan
| | - Hiroyuki Nojiri
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai,
Miyagi 980-8577, Japan
| | - Brian K. Breedlove
- Department of Chemistry, Graduate School of
Science, Tohoku University, 6-3 Aramaki-Aza-Aoba,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of
Science, Tohoku University, 6-3 Aramaki-Aza-Aoba,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Core Research for Evolutional Science and Technology
(CREST), Japan Science and Technology Agency (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
81
|
Wang YL, Gao YY, Ma Y, Wang QL, Li LC, Liao DZ. Syntheses, crystal structures, magnetic and luminescence properties of five novel lanthanide complexes of nitronyl nitroxide radical. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.03.052] [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]
|
82
|
Gomez-Coca S, Cremades E, Aliaga-Alcalde N, Ruiz E. Mononuclear Single-Molecule Magnets: Tailoring the Magnetic Anisotropy of First-Row Transition-Metal Complexes. J Am Chem Soc 2013; 135:7010-8. [DOI: 10.1021/ja4015138] [Citation(s) in RCA: 355] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Núria Aliaga-Alcalde
- ICREA - Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain
| | | |
Collapse
|
83
|
King DM, Tuna F, McMaster J, Lewis W, Blake AJ, McInnes EJL, Liddle ST. Single-Molecule Magnetism in a Single-Ion Triamidoamine Uranium(V) Terminal Mono-Oxo Complex. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301007] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
84
|
King DM, Tuna F, McMaster J, Lewis W, Blake AJ, McInnes EJL, Liddle ST. Single-Molecule Magnetism in a Single-Ion Triamidoamine Uranium(V) Terminal Mono-Oxo Complex. Angew Chem Int Ed Engl 2013; 52:4921-4. [DOI: 10.1002/anie.201301007] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Indexed: 11/06/2022]
|
85
|
Affiliation(s)
- Daniel N. Woodruff
- School
of Chemistry, and ‡The Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL,
United Kingdom
| | - Richard E. P. Winpenny
- School
of Chemistry, and ‡The Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL,
United Kingdom
| | - Richard A. Layfield
- School
of Chemistry, and ‡The Photon Science Institute, The University of Manchester, Oxford Road, Manchester M13 9PL,
United Kingdom
| |
Collapse
|
86
|
Moro F, Mills DP, Liddle ST, van Slageren J. The Inherent Single-Molecule Magnet Character of Trivalent Uranium. Angew Chem Int Ed Engl 2013; 52:3430-3. [DOI: 10.1002/anie.201208015] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 01/17/2013] [Indexed: 11/06/2022]
|
87
|
Moro F, Mills DP, Liddle ST, van Slageren J. The Inherent Single-Molecule Magnet Character of Trivalent Uranium. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
88
|
Baldoví JJ, Cardona-Serra S, Clemente-Juan JM, Coronado E, Gaita-Ariño A. Modeling the properties of uranium-based single ion magnets. Chem Sci 2013. [DOI: 10.1039/c2sc21490c] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
89
|
Hino S, Maeda M, Yamashita K, Kataoka Y, Nakano M, Yamamura T, Nojiri H, Kofu M, Yamamuro O, Kajiwara T. Linear trinuclear Zn(ii)–Ce(iii)–Zn(ii) complex which behaves as a single-molecule magnet. Dalton Trans 2013; 42:2683-6. [DOI: 10.1039/c2dt32812g] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
90
|
Zadrozny JM, Atanasov M, Bryan AM, Lin CY, Rekken BD, Power PP, Neese F, Long JR. Slow magnetization dynamics in a series of two-coordinate iron(ii) complexes. Chem Sci 2013. [DOI: 10.1039/c2sc20801f] [Citation(s) in RCA: 473] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
91
|
Yamashita K, Miyazaki R, Kataoka Y, Nakanishi T, Hasegawa Y, Nakano M, Yamamura T, Kajiwara T. A luminescent single-molecule magnet: observation of magnetic anisotropy using emission as a probe. Dalton Trans 2013; 42:1987-90. [DOI: 10.1039/c2dt32785f] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
92
|
Antunes MA, Santos IC, Bolvin H, Pereira LCJ, Mazzanti M, Marçalo J, Almeida M. Crystal structure diversity in the bis[hydrotris(3,5-dimethylpyrazolyl)borate]iodouranium(iii) complex: from neutral to cationic forms. Dalton Trans 2013; 42:8861-7. [DOI: 10.1039/c3dt50753j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
93
|
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
|
94
|
Uranium and manganese assembled in a wheel-shaped nanoscale single-molecule magnet with high spin-reversal barrier. Nat Chem 2012; 4:1011-7. [DOI: 10.1038/nchem.1494] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 10/04/2012] [Indexed: 11/09/2022]
|
95
|
Baldoví JJ, Cardona-Serra S, Clemente-Juan JM, Coronado E, Gaita-Ariño A, Palii A. Rational design of single-ion magnets and spin qubits based on mononuclear lanthanoid complexes. Inorg Chem 2012; 51:12565-74. [PMID: 23102271 DOI: 10.1021/ic302068c] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Here we develop a general approach to calculating the energy spectrum and the wave functions of the low-lying magnetic levels of a lanthanoid ion submitted to the crystal field created by the surrounding ligands. This model allows us to propose general criteria for the rational design of new mononuclear lanthanoid complexes behaving as single-molecule magnets (SMMs) or acting as robust spin qubits. Three typical environments exhibited by these metal complexes are considered, namely, (a) square antiprism, (b) triangular dodecahedron, and (c) trigonal prism. The developed model is used to explain the properties of some representative examples showing these geometries. Key questions in this area, such as the chemical tailoring of the superparamagnetic energy barrier, tunneling gap, or spin relaxation time, are discussed. Finally, in order to take into account delocalization and/or covalent effects of the ligands, this point-charge model is complemented with ab initio calculations, which provide accurate information on the charge distribution around the metal, allowing for an explanation of the SMM behavior displayed by some sandwich-type organometallic compounds.
Collapse
Affiliation(s)
- José J Baldoví
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia , C/Catedrático José Beltrán 2, E-46980 Paterna, Spain
| | | | | | | | | | | |
Collapse
|
96
|
Baldoví JJ, Borrás-Almenar JJ, Clemente-Juan JM, Coronado E, Gaita-Ariño A. Modeling the properties of lanthanoid single-ion magnets using an effective point-charge approach. Dalton Trans 2012; 41:13705-10. [PMID: 22961120 DOI: 10.1039/c2dt31411h] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we present two geometrical models based on an effective point-charge approach to provide a full description of the lowest sublevels in lanthanoid single ion magnets (SIMs). The first one, named as the Radial Effective Charge (REC) model, evaluates the crystal field effect of spherical ligands, e.g. F(-), Cl(-) or Br(-), by placing the effective charge along the Ln-ligand axes. In this case the REC parameters are obtained fitting high-resolution spectroscopic data for lanthanoid halides. The second model, named as the Lone Pair Effective Charge (LPEC) model, has been developed in order to provide a realistic description of systems in which the lone pairs are not pointing directly towards the magnetic ion. A relevant example of this kind is provided by the bis(phthalocyaninato)lanthanoids [Ln(Pc)(2)](-). We show that a fit of the magnetic properties of the [Ln(Pc)(2)](-) (Ln = Tb, Dy, Ho, Er, Tm and Yb) allows us to extract the LPEC parameters for the lanthanoid complexes coordinated to sp(2)-nitrogens. Finally, we show that these effective corrections may be extrapolated to a large variety of lanthanoid and actinoid compounds, having either extended or molecular structures.
Collapse
Affiliation(s)
- José J Baldoví
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | | | | | | | | |
Collapse
|
97
|
Westerström R, Dreiser J, Piamonteze C, Muntwiler M, Weyeneth S, Brune H, Rusponi S, Nolting F, Popov A, Yang S, Dunsch L, Greber T. An Endohedral Single-Molecule Magnet with Long Relaxation Times: DySc2N@C80. J Am Chem Soc 2012; 134:9840-3. [DOI: 10.1021/ja301044p] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rasmus Westerström
- Physik-Institut, Universität Zürich, Winterthurerstrasse
190, CH-8057 Zürich, Switzerland
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Jan Dreiser
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Cinthia Piamonteze
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Matthias Muntwiler
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Stephen Weyeneth
- Physik-Institut, Universität Zürich, Winterthurerstrasse
190, CH-8057 Zürich, Switzerland
| | - Harald Brune
- Institute of Condensed Matter
Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Stefano Rusponi
- Institute of Condensed Matter
Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Frithjof Nolting
- Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - Alexey Popov
- Department of Electrochemistry
and Conducting Polymers, Leibniz Institute of Solid State and Materials Research, Dresden, D-01069 Dresden, Germany
| | - Shangfeng Yang
- Department of Electrochemistry
and Conducting Polymers, Leibniz Institute of Solid State and Materials Research, Dresden, D-01069 Dresden, Germany
- Hefei National Laboratory for
Physical Sciences at Microscale, Department of Materials Science and
Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Lothar Dunsch
- Department of Electrochemistry
and Conducting Polymers, Leibniz Institute of Solid State and Materials Research, Dresden, D-01069 Dresden, Germany
| | - Thomas Greber
- Physik-Institut, Universität Zürich, Winterthurerstrasse
190, CH-8057 Zürich, Switzerland
| |
Collapse
|
98
|
Lin SY, Zhao L, Guo YN, Zhang P, Guo Y, Tang J. Two New Dy3 Triangles with Trinuclear Circular Helicates and Their Single-Molecule Magnet Behavior. Inorg Chem 2012; 51:10522-8. [DOI: 10.1021/ic300371m] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shuang-Yan Lin
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100039,
People's Republic of China
| | - Lang Zhao
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
| | - Yun-Nan Guo
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100039,
People's Republic of China
| | - Peng Zhang
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100039,
People's Republic of China
| | - Yang Guo
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
| | - Jinkui Tang
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022,
People's Republic of China
| |
Collapse
|
99
|
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]
|
100
|
Maeda M, Hino S, Yamashita K, Kataoka Y, Nakano M, Yamamura T, Kajiwara T. Correlation between slow magnetic relaxation and the coordination structures of a family of linear trinuclear Zn(ii)–Ln(iii)–Zn(ii) complexes (Ln = Tb, Dy, Ho, Er, Tm and Yb). Dalton Trans 2012; 41:13640-8. [DOI: 10.1039/c2dt31399e] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|