1
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Jia H, Yin B, Chen J, Zou Y, Wang H, Zhang Y, Ma T, Shi Q, Yao J, Bai S, Zhang C. A Paramagnetic Compass Based on Lanthanide Metal-Organic Framework. Angew Chem Int Ed Engl 2023; 62:e202309073. [PMID: 37427886 DOI: 10.1002/anie.202309073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/11/2023]
Abstract
Macroscopic compass-like magnetic alignment at low magnetic fields is natural for ferromagnetic materials but is seldomly observed in paramagnetic materials. Herein, we report a "paramagnetic compass" that magnetically aligns under ∼mT fields based on the single-crystalline framework constructed by lanthanide ions and organic ligands (Ln-MOF). The magnetic alignment is attributed to the Ln-MOF's strong macroscopic anisotropy, where the highly-ordered structure allows the Ln-ions' molecular anisotropy to be summed according to the crystal symmetry. In tetragonal Ln-MOFs, the alignment is either parallel or perpendicular to the field depending on the easiest axis of the molecular anisotropy. Reversible switching between the two alignments is realized upon the removal and re-adsorption of solvent molecules filled in the framework. When the crystal symmetry is lowered in monoclinic Ln-MOFs, the alignments become even inclined (47°-66°) to the field. These fascinating properties of Ln-MOFs would encourage further explorations of framework materials containing paramagnetic centers.
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Affiliation(s)
- Hao Jia
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baipeng Yin
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiaying Chen
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Ye Zou
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Hong Wang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yu Zhang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tongmei Ma
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Qiang Shi
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Shuming Bai
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Chuang Zhang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
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2
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Zapolotsky EN, Babailov SP, Kniazeva MV, Strelnikova YV, Ovsyannikov AS, Gubaidullin AT, Solovieva SE, Antipin IS, Fomin ES, Chuikov IP. Synthesis, crystal structure and NMR-study new mononuclear paramagnetic Er (III) complex based on imine derivatives of thiacalix[4]arene. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Paramagnetic Properties and Moderately RapidConformational Dynamics in the Cobalt(II) Calix[4]arene Complex by NMR. Molecules 2022; 27:molecules27144668. [PMID: 35889541 PMCID: PMC9317762 DOI: 10.3390/molecules27144668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 01/25/2023] Open
Abstract
1H NMR measurements are reported for the CD2Cl2/CDCl3 solutions of the Co(II) calix[4]arenetetraphosphineoxide complex (I). Temperature dependences of the 1H NMR spectra of I have been analyzed using the line shape analysis, taking into account the temperature variation of paramagnetic chemical shifts, within the frame of the dynamic NMR method. Conformational dynamics of the 2:1 Co(II) calix[4]arene complexes was conditioned by the pinched cone ↔pinched cone interconversion of I (with activation Gibbs energy ΔG≠(298K) = 40 ± 3 kJ/mol. Due to substantial temperature dependence of paramagnetic shifts, complex I can be used as model compound for designing an NMR thermosensor reagent for local temperature monitoring.
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4
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Eggen M, Ke¸dziorski A, Janicki R, Korabik M, Krośnicki M. The ab-initio and experimental study of the spectroscopic and magnetic properties of Ho(III)-EDTA. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Abstract
Magnetic anisotropy, in the absence of an external magnetic field, relates to the degeneracy lift of energy levels. In the standard case of transition metal complexes, this property is usually modeled by an anisotropic spin Hamiltonian and one speaks of "zero-field splitting" (ZFS) of spin states. While the case of mononuclear complexes has been extensively described by means of ab initio quantum mechanical calculations, the literature on polynuclear complexes studied with these methodologies is rather scarce. In this work, advanced multiconfigurational wave function theory methods are applied to compute the ZFS of the ground S = 4 state of an actual tetranickel(II) complex, displaying a magnet behavior below 0.5 K. First, the isotropic couplings are computed in the absence of the spin-orbit coupling operator, in the full complex and also in clusters with only two active nickel(II) centers, confirming the occurrence of weak ferromagnetic couplings in this system. Second, the single-site magnetic anisotropies are computed on a cluster bearing only one active nickel(II) site, showing that the single-site anisotropy axes are not oriented in an optimal fashion for generating a large uniaxial molecular anisotropy. Furthermore, the possibility for involving only a few local orbital excited states in the calculation is assessed, actually opening the way for a consistent and manageable treatment of the ZFS of the ground S = 4 state. Third, multiconfigurational calculations are performed on the full complex, confirming the weak uniaxial anisotropy occurring for this state and also, interestingly, revealing a significant contribution of the lowest-lying orbitally excited S = 3 states. Overall, by comparison with the experiment, the reported results question the common habit of using only one structure, in particular derived from a crystallography experiment, to compute magnetic anisotropy parameters.
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Affiliation(s)
- Rémi Maurice
- SUBATECH, UMR CNRS 6457, IN2P3/IMT Atlantique/Université de Nantes, 4 rue A. Kastler, 44307 Nantes Cedex 3, France
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6
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Zoufalý P, Čižmár E, Kuchár J, Herchel R. The Structural and Magnetic Properties of Fe II and Co II Complexes with 2-(furan-2-yl)-5-pyridin-2-yl-1,3,4-oxadiazole. Molecules 2020; 25:molecules25020277. [PMID: 31936620 PMCID: PMC7024161 DOI: 10.3390/molecules25020277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 11/16/2022] Open
Abstract
Two novel coordination compounds containing heterocyclic bidentate N,N-donor ligand 2-(furan-2-yl)-5-(pyridin-2-yl)-1,3,4-oxadiazole (fpo) were synthesized. A general formula for compounds originating from perchlorates of iron, cobalt, and fpo can be written as: [M(fpo)2(H2O)2](ClO4)2 (M = Fe(II) for (1) Co(II) for (2)). The characterization of compounds was performed by general physico-chemical methods-elemental analysis (EA), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) in case of organics, and single crystal X-ray diffraction (sXRD). Moreover, magneto-chemical properties were studied employing measurements in static field (DC) for 1 and X-band EPR (Electron paramagnetic resonance), direct current (DC), and alternating current (AC) magnetic measurements in case of 2. The analysis of DC magnetic properties revealed a high spin arrangement in 1, significant rhombicity for both complexes, and large magnetic anisotropy in 2 (D = -21.2 cm-1). Moreover, 2 showed field-induced slow relaxation of the magnetization (Ueff = 65.3 K). EPR spectroscopy and ab initio calculations (CASSCF/NEVPT2) confirmed the presence of easy axis anisotropy and the importance of the second coordination sphere.
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Affiliation(s)
- Pavel Zoufalý
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, CZ-771 46 Olomouc, Czech Republic; (P.Z.); or
| | - Erik Čižmár
- Institute of Physics, Faculty of Science, P.J. Šafárik University in Košice, Park Angelinum 9, SK-041 54 Košice, Slovakia;
| | - Juraj Kuchár
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, CZ-771 46 Olomouc, Czech Republic; (P.Z.); or
- Department of Inorganic Chemistry, Institute of Chemistry, Faculty of Science, P.J. Šafárik University in Košice, Moyzesova 11, SK-041 54 Košice, Slovakia
| | - Radovan Herchel
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. Listopadu 12, CZ-771 46 Olomouc, Czech Republic; (P.Z.); or
- Correspondence: ; Tel.: +420-58563-4435
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7
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Fuller RO, Koutsantonis GA, Ogden MI. Magnetic properties of calixarene-supported metal coordination clusters. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213066] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Singh MK, Shukla P, Khatua M, Rajaraman G. A Design Criteria to Achieve Giant Ising-Type Anisotropy in Co II -Encapsulated Metallofullerenes. Chemistry 2019; 26:464-477. [PMID: 31506987 DOI: 10.1002/chem.201903618] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/05/2019] [Indexed: 11/10/2022]
Abstract
Discovery of permanent magnetisation in molecules just like in hard magnets decades ago led to the proposal of utilising these molecules for information storage devices and also as Q-bits in quantum computing. A significant breakthrough with a blocking temperature as high as 80 K has been recently reported for lanthanocene complexes. While enhancing the blocking temperature further remains one of the primary challenges, obtaining molecules that are suitable for the fabrication of the devices sets the bar very high in this area. Encouraged by the fact that our earlier predictions of potential single-molecule magnets (SMMs) in lanthanide-containing endohedral fullerenes have been verified, here we set out to undertake a comprehensive study on CoII -ion-encapsulated fullerene as potential SMMs. To study this class of molecules, we have utilised an array of theoretical methods ranging from density functional to ab initio CASSCF/NEVPT2 methods for obtaining reliable estimate of zero-field splitting parameters D and E. Additionally, we have also employed, for the first time a combination of molecular dynamics based on DFT methods coupled with CASSCF/NEVPT2 methods to seek the role of conformational isomers in the relaxation of magnetisation. Particularly, we have studied, Co@C28 , Co@C38 and Co@C48 cages and their isomers as potential target molecules that could yield substantial magnetic anisotropy. Our calculations categorically reveal a very large Ising anisotropy in this class of molecules, with Co@C48 cages predicted to yield D values as high as -127 cm-1 . Our calculations on the smaller cages reveal the free movement of CoII ion inside the cage, leading to the likely scenario of faster relaxation of magnetisation. However, larger fullerene cages were found to solve this issue. Further models with incorporating units such as {CoOZn}, {CoScZnN} inside larger fullerenes yield axial zero-field splitting values as high as -200 cm-1 with negligible E/D values. As these units represent a strong axiality coupled with a viable way to obtain air-stable low-coordinate CoII complexes, this opens up a new paradigm in the search of SMMs in this class of molecules.
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Affiliation(s)
- Mukesh Kumar Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Pratima Shukla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Munmun Khatua
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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9
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Reynolds RD, Shiozaki T. Zero-Field Splitting Parameters from Four-Component Relativistic Methods. J Chem Theory Comput 2019; 15:1560-1571. [PMID: 30689942 DOI: 10.1021/acs.jctc.8b00910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an approach for determination of zero-field splitting parameters from four-component relativistic calculations. Our approach involves neither perturbative treatment of spin-orbit interaction nor truncation of the spin-orbit coupled states. We make use of a multi-state implementation of relativistic complete active space perturbation theory (CASPT2), partially contracted N-electron valence perturbation theory (NEVPT2), and multi-reference configuration interaction theory (MRCI), all with the fully internally contracted ansatz. A mapping is performed from the Dirac Hamiltonian to the pseudospin Hamiltonian, using correlated energies and the magnetic moment matrix elements of the reference wave functions. Direct spin-spin coupling is naturally included through the full 2-electron Breit interaction. Benchmark calculations on chalcogen diatomics and pseudotetrahedral cobalt(II) complexes show accuracy comparable to the commonly used state-interaction with spin-orbit (SI-SO) approach, while tests on a uranium(III) single-ion magnet suggest that for actinide complexes the strengths of our approach through the more robust treatment of spin-orbit effects and the avoidance of state truncation are of greater importance.
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Affiliation(s)
- Ryan D Reynolds
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , Illinois 60208 , United States
| | - Toru Shiozaki
- Department of Chemistry , Northwestern University , 2145 Sheridan Rd. , Evanston , Illinois 60208 , United States
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10
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Boutar M, Desroches C, Mattoussi N, Habib Noamane M, Bois L, Gautier-Luneau I, Abidi R, Luneau D. Coordination polymers of zinc(II) and manganese(II) made by complexation of calix[4]arene functionalized with carboxylates afford alveolar materials. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Herchel R, Zoufalý P, Nemec I. The effect of the second coordination sphere on the magnetism of [Ln(NO3)3(H2O)3]·(18-crown-6) (Ln = Dy and Er). RSC Adv 2019; 9:569-575. [PMID: 35521623 PMCID: PMC9059281 DOI: 10.1039/c8ra09648a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 12/14/2018] [Indexed: 11/21/2022] Open
Abstract
The objective of this work was the exploration of the effect of the second coordination sphere on the magnetic properties of [Ln(NO3)3(H2O)3]·(18C6) (Ln = Dy (1) and Er (2)) compounds comprising co-crystallized 18-crown-6 ethers. Both compounds were identified as field-induced single molecule magnets (SMMs) with estimated magnetization reversal barriers Ueff = 66–71 K for 1 and Ueff = 21–24 K for 2. Theoretical calculations with the B3LYP functional revealed substantial change and redistribution of the electrostatic potential upon accounting for the second coordination sphere represented by two 18C6 molecules, which resulted in the change of the crystal-field around metal atoms. As a result, the multireference CASSCF calculations exposed significant impact of the second coordination sphere on the energy splitting of the respective 6H15/2 (DyIII) and 4I15/2 (ErIII) ground states, the magnetization reversal barrier and the magnetic anisotropy parameters. Moreover, the calculated magnetization reversal barriers, Ucalc. = 57 K for 1 and Ucalc. = 16 K for 2, are in good agreement with the experimental values accentuating the importance of the second coordination sphere on the magnetic properties of SMMs. The impact of the second coordination sphere on the magnetic properties of [Ln(NO3)3(H2O)3]·(18C6) compounds comprising co-crystallized 18-crown-6 ethers was investigated.![]()
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Affiliation(s)
- Radovan Herchel
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
- Czech Republic
| | - Pavel Zoufalý
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
- Czech Republic
| | - Ivan Nemec
- Department of Inorganic Chemistry
- Faculty of Science
- Palacký University
- CZ-771 46 Olomouc
- Czech Republic
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12
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Zahir MH, Chowdhury S, Abdul Aziz M, Rahman MM. Host-Guest Extraction of Heavy Metal Ions with p- t-Butylcalix[8]arene from Ammonia or Amine Solutions. Int J Anal Chem 2018; 2018:4015878. [PMID: 30112002 PMCID: PMC6077549 DOI: 10.1155/2018/4015878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 06/04/2018] [Accepted: 06/21/2018] [Indexed: 11/18/2022] Open
Abstract
The capacities of the p-t-butylcalix[8]arene (abbreviated as H8L) host to extract toxic divalent heavy metal ions and silver from aqueous solution phases containing ammonia or ethylene diamine to an organic phase (nitrobenzene, dichloromethane, or chloroform) were carried out. When the metal ions were extracted from an aqueous ammonia solution, the metal ion selectivity for extraction was found to decrease in the order Cd2+> Ni2+> Cu2+> Ag+> Co2+> Zn2+. When the aqueous phase contained ethylene diamine, excellent extraction efficiencies of 97% and 90% were observed for the heavy metal ions Cu2+ and Cd2+, respectively. Under the same conditions the extraction of octahedral type metal ions, namely, Co2+ and Ni2+, was suppressed. The extraction of transition metal cations by H8L in ammonia and/or amine was found to be pH dependent. Detailed analysis of extraction behavior was investigated by slope analysis, the continuous variation method, and by loading tests.
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Affiliation(s)
- Md. Hasan Zahir
- Center of Research Excellence in Renewable Energy, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Shakhawat Chowdhury
- Department of Civil and Environmental Engineering, Water Research Group, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Md. Abdul Aziz
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Mohammad Mizanur Rahman
- Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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13
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García-Valdivia AA, Seco JM, Cepeda J, Rodríguez-Diéguez A. Designing Single-Ion Magnets and Phosphorescent Materials with 1-Methylimidazole-5-carboxylate and Transition-Metal Ions. Inorg Chem 2017; 56:13897-13912. [PMID: 29120182 DOI: 10.1021/acs.inorgchem.7b02020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Detailed structural, magnetic, and photoluminescence (PL) characterization of four new compounds based on 1-methylimidazole-5-carboxylate (mimc) ligand and transition metal ions, namely [Ni(mimc)2(H2O)4] (1), [Co(μ-mimc)2]n (2), {[Cu2(μ-mimc)4(H2O)]·2H2O}n (3), and [Cd(μ-mimc)2(H2O)]n (4) is reported. The structural diversity found in the family of compounds derives from the coordination versatility of the ligand, which coordinates as a terminal ligand to give a supramolecular network of monomeric entities in 1 or acts as a bridging linker to build isoreticular 2D coordination polymers (CPs) in 2-4. Magnetic direct-current (dc) susceptibility data have been measured for compounds 1-3 to analyze the exchange interactions among paramagnetic centers, which have been indeed supported by calculations based on broken symmetry (BS) and density functional theory (DFT) methodology. The temperature dependence of susceptibility and magnetization data of 2 are indicative of easy-plane anisotropy (D = +12.9 cm-1, E = +0.5 cm-1) that involves a bistable Ms = ±1/2 ground state. Alternating-current (ac) susceptibility curves exhibit field-induced single-ion magnet (SIM) behavior that occurs below 14 K, which is characterized by two spin relaxation processes of distinct nature: fast relaxation of single ions proceeding through multiple mechanisms (Ueff = 26 K) and a slow relaxation attributed to interactions along the polymeric crystal building. Exhaustive PL analysis of compound 4 in the solid state confirms low-temperature phosphorescent green emission consisting of radiative lifetimes in the range of 0.25-0.43 s, which explains the afterglow observed during about 1 s after the removal of the UV source. Time-dependent DFT and computational calculations to estimate phosphorescent vertical transitions have been also employed to provide an accurate description of the PL performance of this long-lasting phosphor.
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Affiliation(s)
| | - Jose M Seco
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco/Euskal Herriko Unibertsitatea, UPV/EHU , 20018 San Sebastián, Spain
| | - Javier Cepeda
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco/Euskal Herriko Unibertsitatea, UPV/EHU , 20018 San Sebastián, Spain
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14
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Liu JJ, Jiang SD, Neugebauer P, van Slageren J, Lan Y, Wernsdorfer W, Wang BW, Gao S. Magnetic and HFEPR Studies of Exchange Coupling in a Series of μ-Cl Dicobalt Complexes. Inorg Chem 2017; 56:2417-2425. [DOI: 10.1021/acs.inorgchem.6b02368] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jia-Jia Liu
- National Laboratory for Molecular Sciences, State Key
Laboratory of Rare Earth Materials Chemistry and Applications, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Shang-Da Jiang
- National Laboratory for Molecular Sciences, State Key
Laboratory of Rare Earth Materials Chemistry and Applications, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Petr Neugebauer
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Joris van Slageren
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Yanhua Lan
- Institut Néel−CNRS, 25 Avenue des Martyrs, BP 166, 38042 Grenoble Cedex 9, France
| | - Wolfgang Wernsdorfer
- Institut Néel−CNRS, 25 Avenue des Martyrs, BP 166, 38042 Grenoble Cedex 9, France
| | - Bing-Wu Wang
- National Laboratory for Molecular Sciences, State Key
Laboratory of Rare Earth Materials Chemistry and Applications, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Song Gao
- National Laboratory for Molecular Sciences, State Key
Laboratory of Rare Earth Materials Chemistry and Applications, College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
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15
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Tools for Predicting the Nature and Magnitude of Magnetic Anisotropy in Transition Metal Complexes: Application to Co(II) Complexes. MAGNETOCHEMISTRY 2016. [DOI: 10.3390/magnetochemistry2030031] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Harriman KLM, Murugesu M. An Organolanthanide Building Block Approach to Single-Molecule Magnets. Acc Chem Res 2016; 49:1158-67. [PMID: 27195740 DOI: 10.1021/acs.accounts.6b00100] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Single-molecule magnets (SMMs) are highly sought after for their potential application in high-density information storage, spintronics, and quantum computing. SMMs exhibit slow relaxation of the magnetization of purely molecular origin, thus making them excellent candidates towards the aforementioned applications. In recent years, significant focus has been placed on the rare earth elements due to their large intrinsic magnetic anisotropy arising from the near degeneracy of the 4f orbitals. Traditionally, coordination chemistry has been utilized to fabricate lanthanide-based SMMs; however, heteroatomic donor atoms such as oxygen and nitrogen have limited orbital overlap with the shielded 4f orbitals. Thus, control over the anisotropic axis and induction of f-f interactions are limited, meaning that the performance of these systems can only extend so far. To this end, we have placed considerable attention on the development of novel SMMs whose donor atoms are conjugated hydrocarbons, thereby allowing us to perturb the crystal field of lanthanide ions through the use of an electronic π-cloud. This approach allows for fine tuning of the anisotropic axis of the molecule, allowing this method the potential to elicit SMMs capable of reaching much larger values for the two vital performance measurements of an SMM, the energy barrier to spin reversal (Ueff), and the blocking temperature of the magnetization (TB). In this Account, we describe our efforts to exploit the inherent anisotropy of the late 4f elements; namely, Dy(III) and Er(III), through the use of cyclooctatetraenyl (COT) metallocenes. With respect to the Er(III) derivatives, we have seen record breaking success, reaching blocking temperatures as high as 14 K with frozen solution magnetometry. These results represent the first example of such a high TB being observed for a system with only a single spin center, formally known as a single-ion magnet (SIM). Our continued interrelationship between theoretical and experimental chemistry allows us to shed light on the mechanisms and electronic properties that govern the slow relaxation dynamics inherent to this unique set of SMMs, thus providing insight into the role by which both symmetry and crystal field effects contribute to the magnetic properties. As we look to the future success of such materials in practical devices, we must gain an understanding of how the 4f elements communicate magnetically, a subject upon which there is still limited knowledge. As such, we have described our work on coupling mononuclear metallocenes to generate new dinuclear SMMs. Through a building block approach, we have been able to gain access to new double,- triple- and quadruple-decker complexes that possess remarkable properties; exhibiting TB of 12 K and Ueff above 300 K. Our goal is to develop a fundamental platform from which to study 4f coupling, while maintaining and enhancing the strict axiality of the anisotropy of the 4f ions. This Account will present a successful strategy employed in the production of novel and high-performing SMMs, as well as a clear overview of the lessons learned throughout.
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Affiliation(s)
- Katie L. M. Harriman
- Department
of Chemistry and
Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Muralee Murugesu
- Department
of Chemistry and
Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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17
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Rechkemmer Y, Fischer JE, Marx R, Dörfel M, Neugebauer P, Horvath S, Gysler M, Brock-Nannestad T, Frey W, Reid MF, van Slageren J. Comprehensive Spectroscopic Determination of the Crystal Field Splitting in an Erbium Single-Ion Magnet. J Am Chem Soc 2015; 137:13114-20. [DOI: 10.1021/jacs.5b08344] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yvonne Rechkemmer
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Julia E. Fischer
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Raphael Marx
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - María Dörfel
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Petr Neugebauer
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Sebastian Horvath
- Department
of Physics and Astronomy, University of Canterbury, Christchurch 8140, New Zealand
| | - Maren Gysler
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Theis Brock-Nannestad
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Wolfgang Frey
- Institut
für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Michael F. Reid
- Department
of Physics and Astronomy, University of Canterbury, Christchurch 8140, New Zealand
| | - Joris van Slageren
- Institut
für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
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18
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Chow CY, Bolvin H, Campbell VE, Guillot R, Kampf JW, Wernsdorfer W, Gendron F, Autschbach J, Pecoraro VL, Mallah T. Assessing the exchange coupling in binuclear lanthanide(iii) complexes and the slow relaxation of the magnetization in the antiferromagnetically coupled Dy 2 derivative. Chem Sci 2015; 6:4148-4159. [PMID: 29218180 PMCID: PMC5707489 DOI: 10.1039/c5sc01029b] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 05/07/2015] [Indexed: 12/25/2022] Open
Abstract
We report here the synthesis and the investigation of the magnetic properties of a series of binuclear lanthanide complexes belonging to the metallacrown family. The isostructural complexes have a core structure with the general formula [Ga4Ln2(shi3-)4(Hshi2-)2(H2shi-)2(C5H5N)4(CH3OH) x (H2O) x ]·xC5H5N·xCH3OH·xH2O (where H3shi = salicylhydroxamic acid and Ln = GdIII1; TbIII2; DyIII3; ErIII4; YIII5; YIII0.9DyIII0.16). Apart from the Er-containing complex, all complexes exhibit an antiferromagnetic exchange coupling leading to a diamagnetic ground state. Magnetic studies, below 2 K, on a single crystal of 3 using a micro-squid array reveal an opening of the magnetic hysteresis cycle at zero field. The dynamic susceptibility studies of 3 and of the diluted DyY 6 complexes reveal the presence of two relaxation processes for 3 that are due to the excited ferromagnetic state and to the uncoupled DyIII ions. The antiferromagnetic coupling in 3 was shown to be mainly due to an exchange mechanism, which accounts for about 2/3 of the energy gap between the antiferro- and the ferromagnetic states. The overlap integrals between the Natural Spin Orbitals (NSOs) of the mononuclear fragments, which are related to the magnitude of the antiferromagnetic exchange, are one order of magnitude larger for the Dy2 than for the Er2 complex.
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Affiliation(s)
- Chun Y Chow
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48108 , USA .
| | - Hélène Bolvin
- Laboratiore de Chimie et Physique Quantiques , Université Toulouse III , 118 route de Narbonne , 31062 Toulouse , France
| | - Victoria E Campbell
- Institut de Chimie Moléculaire et des Matériaux d'Orsay , CNRS , Université de Paris Sud 11 , 91405 Orsay Cedex , France .
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay , CNRS , Université de Paris Sud 11 , 91405 Orsay Cedex , France .
| | - Jeff W Kampf
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48108 , USA .
| | - Wolfgang Wernsdorfer
- Institut Néel , CNRS , Université J. Fourier , BP 166 25, Avenue des Martyrs , 38405 Grenoble , France
| | - Frédéric Gendron
- Department of Chemistry , University at Buffalo , State University of New York , Buffalo , NY 14260-3000 , USA
| | - Jochen Autschbach
- Department of Chemistry , University at Buffalo , State University of New York , Buffalo , NY 14260-3000 , USA
| | - Vincent L Pecoraro
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48108 , USA .
| | - Talal Mallah
- Institut de Chimie Moléculaire et des Matériaux d'Orsay , CNRS , Université de Paris Sud 11 , 91405 Orsay Cedex , France .
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19
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Le Roy JJ, Gorelsky SI, Korobkov I, Murugesu M. Slow Magnetic Relaxation in Uranium(III) and Neodymium(III) Cyclooctatetraenyl Complexes. Organometallics 2015. [DOI: 10.1021/om501214c] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jennifer J. Le Roy
- Chemistry
Department and
the Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Serge I. Gorelsky
- Chemistry
Department and
the Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Ilia Korobkov
- Chemistry
Department and
the Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Muralee Murugesu
- Chemistry
Department and
the Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
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20
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Caballero-Jiménez J, Habib F, Ramírez-Rosales D, Grande-Aztatzi R, Merino G, Korobkov I, Singh MK, Rajaraman G, Reyes-Ortega Y, Murugesu M. Inducing magnetic communication in caged dinuclear Co(ii) systems. Dalton Trans 2015; 44:8649-59. [DOI: 10.1039/c5dt00497g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Magnetic interactions were probed for a series of mono and tri atomic bridged dinuclear Co(ii) azacryptand complexes. Magneto-structural correlations were established usingab initiocalculations.
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Affiliation(s)
| | - Fatemah Habib
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada K1N6N5
| | - Daniel Ramírez-Rosales
- Departamento de Física
- Escuela Superior de Física y Matemáticas
- I.P.N
- Av. Instituto Politécnico Nacional s/n San Pedro Zacatenco
- México 07738
| | - Rafael Grande-Aztatzi
- Departamento de Física Aplicada
- Centro de Investigación de Estudios Avanzados Unidad Mérida. km 6 Antigua carretera a Progreso
- Mérida
- México
| | - Gabriel Merino
- Departamento de Física Aplicada
- Centro de Investigación de Estudios Avanzados Unidad Mérida. km 6 Antigua carretera a Progreso
- Mérida
- México
| | - Ilia Korobkov
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada K1N6N5
| | | | - Gopalan Rajaraman
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Yasmi Reyes-Ortega
- Centro de Química
- Instituto de Ciencias
- Universidad Autónoma de Puebla
- 72000 Puebla
- México
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21
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Zhang YZ, Gao S, Sato O. In situ tetrazole templated chair-like decanuclear azido-cobalt(II) SMM containing both tetra- and octa-hedral Co(II) ions. Dalton Trans 2014; 44:480-3. [PMID: 25413380 DOI: 10.1039/c4dt03211j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An azido-bridged chair-like decanuclear cluster: [Co(II)10(bzp)8(Metz)2(N3)18]·4MeOH·3H2O (1, bzp = 2-benzoylpyridine and HMetz = 5-methyl-1H-tetrazole) was prepared with in situ tetrazolate anions as templates in a sealed system. 1 containing both octahedral and tetrahedral Co(II) ions exhibited slow relaxation of magnetization with an effective barrier of 26 K under an applied dc field of 1 kOe.
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Affiliation(s)
- Yuan-Zhu Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China.
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22
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Nedelko N, Kornowicz A, Justyniak I, Aleshkevych P, Prochowicz D, Krupiński P, Dorosh O, Ślawska-Waniewska A, Lewiński J. Supramolecular Control over Molecular Magnetic Materials: γ-Cyclodextrin-Templated Grid of Cobalt(II) Single-Ion Magnets. Inorg Chem 2014; 53:12870-6. [DOI: 10.1021/ic501870h] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Natalia Nedelko
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Arkadiusz Kornowicz
- Department of Chemistry, Warsaw University of Technology, Noakowskiego
3, 00−664 Warsaw, Poland
| | - Iwona Justyniak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Pavlo Aleshkevych
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Daniel Prochowicz
- Department of Chemistry, Warsaw University of Technology, Noakowskiego
3, 00−664 Warsaw, Poland
| | - Piotr Krupiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Orest Dorosh
- National Center for Nuclear Research, ul. Sołtana 7, 05-400 Otwock, Poland
| | - Anna Ślawska-Waniewska
- Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
| | - Janusz Lewiński
- Department of Chemistry, Warsaw University of Technology, Noakowskiego
3, 00−664 Warsaw, Poland
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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23
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Pedersen KS, Ungur L, Sigrist M, Sundt A, Schau-Magnussen M, Vieru V, Mutka H, Rols S, Weihe H, Waldmann O, Chibotaru LF, Bendix J, Dreiser J. Modifying the properties of 4f single-ion magnets by peripheral ligand functionalisation. Chem Sci 2014. [DOI: 10.1039/c3sc53044b] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Three Er(iii) single-ion magnets which differ in the peripheral ligand sphere but exhibit similar first coordination spheres show profoundly different inelastic neutron scattering spectra and magnetic properties.
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Affiliation(s)
- Kasper S. Pedersen
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen, Denmark
| | - Liviu Ungur
- Theory of Nanomaterials Group
- Katholieke Universiteit Leuven
- 3001 Leuven, Belgium
| | - Marc Sigrist
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen, Denmark
- Institut Laue-Langevin
- 38042 Grenoble Cedex 9, France
| | - Alexander Sundt
- Physikalisches Institut
- Universität Freiburg
- 79104 Freiburg, Germany
| | | | - Veacheslav Vieru
- Theory of Nanomaterials Group
- Katholieke Universiteit Leuven
- 3001 Leuven, Belgium
| | - Hannu Mutka
- Institut Laue-Langevin
- 38042 Grenoble Cedex 9, France
| | - Stephane Rols
- Institut Laue-Langevin
- 38042 Grenoble Cedex 9, France
| | - Høgni Weihe
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen, Denmark
| | - Oliver Waldmann
- Physikalisches Institut
- Universität Freiburg
- 79104 Freiburg, Germany
| | - Liviu F. Chibotaru
- Theory of Nanomaterials Group
- Katholieke Universiteit Leuven
- 3001 Leuven, Belgium
| | - Jesper Bendix
- Department of Chemistry
- University of Copenhagen
- DK-2100 Copenhagen, Denmark
| | - Jan Dreiser
- Ecole Polytechnique Fédérale de Lausanne
- Institute of Condensed Matter Physics
- 1015 Lausanne and Swiss Light Source
- Paul Scherrer Institut
- , Switzerland
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24
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Chibotaru LF. Theoretical Understanding of Anisotropy in Molecular Nanomagnets. MOLECULAR NANOMAGNETS AND RELATED PHENOMENA 2014. [DOI: 10.1007/430_2014_171] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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25
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Fortier S, Le Roy JJ, Chen CH, Vieru V, Murugesu M, Chibotaru LF, Mindiola DJ, Caulton KG. A dinuclear cobalt complex featuring unprecedented anodic and cathodic redox switches for single-molecule magnet activity. J Am Chem Soc 2013; 135:14670-8. [PMID: 23991708 DOI: 10.1021/ja405284t] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
One-electron oxidation or reduction of the paramagnetic dinuclear Co(II) complex dmp2Nin{Co[N(SiMe3)2]}2 (1; dmp2Nin(2-) = bis(2,6-dimethylphenyl)nindigo), by fully reversible chemical or electrochemical methods, generates the radical salts [1(OEt2)](+) and [1](-), respectively. Full structural and magnetic analyses reveal the locus of the redox changes to be nindigo-based, thus giving rise to ligand-centered radicals sandwiched between two paramagnetic and low-coordinate Co(II) centers. The presence of these sandwiched radicals mediates magnetic coupling between the high-spin (S = 3/2) cobalt ions, which gives rise to single-molecule magnet (SMM) activity in both the oxidized ([1(OEt2)](+)) and reduced ([1](-)) states. This feature represents the first example of a SMM exhibiting fully reversible, dual "ON/OFF" switchability in both the cathodic and anodic states.
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Affiliation(s)
- Skye Fortier
- Department of Chemistry, Indiana University , 800 East Kirkwood Avenue, Bloomington, Indiana 47405, United States
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26
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Magnetic relaxation pathways in lanthanide single-molecule magnets. Nat Chem 2013; 5:673-8. [DOI: 10.1038/nchem.1707] [Citation(s) in RCA: 583] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 06/11/2013] [Indexed: 12/25/2022]
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27
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Mattoussi N, Pilet G, Novitchi G, Meganem F, Luneau D. Synthesis, Crystal Structure, and Magnetic Properties of a Bis‐Dinuclear Oxo‐Bridged Iron(III) Complex with
p
‐Sulfonatocalix[4]arene. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201426] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nabila Mattoussi
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615, Université Claude Bernard Lyon 1, Campus de la Doua, 69222 Villeurbanne cedex, France, http://www.univ‐lyon1.fr
- Laboratoire de Synthèse Organique, Faculté de Sciences de Bizerte, Jarzouna,7021 Bizerte, Tunisie
| | - Guillaume Pilet
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615, Université Claude Bernard Lyon 1, Campus de la Doua, 69222 Villeurbanne cedex, France, http://www.univ‐lyon1.fr
| | - Ghenadie Novitchi
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615, Université Claude Bernard Lyon 1, Campus de la Doua, 69222 Villeurbanne cedex, France, http://www.univ‐lyon1.fr
- Laboratoire National des Champs Magnétiques Intenses, CNRS UPR 3228, 25 Rue des Martyrs, 38042 Grenoble, France
| | - Faouzi Meganem
- Laboratoire de Synthèse Organique, Faculté de Sciences de Bizerte, Jarzouna,7021 Bizerte, Tunisie
| | - Dominique Luneau
- Laboratoire des Multimatériaux et Interfaces (LMI) UMR 5615, Université Claude Bernard Lyon 1, Campus de la Doua, 69222 Villeurbanne cedex, France, http://www.univ‐lyon1.fr
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28
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Du S, Ke H, Bi Y, Tan H, Yu Y, Tang J, Liao W. A MnII5 tetragonal pyramid stabilized by p-tert-butylcalix[8]arene: Synthesis, structure and magnetic property. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2012.12.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Le Roy JJ, Jeletic M, Gorelsky SI, Korobkov I, Ungur L, Chibotaru LF, Murugesu M. An Organometallic Building Block Approach To Produce a Multidecker 4f Single-Molecule Magnet. J Am Chem Soc 2013; 135:3502-10. [DOI: 10.1021/ja310642h] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jennifer J. Le Roy
- Chemistry Department and the
Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
| | - Matthew Jeletic
- Chemistry Department and the
Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
| | - Serge I. Gorelsky
- Chemistry Department and the
Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
| | - Ilia Korobkov
- Chemistry Department and the
Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
| | - Liviu Ungur
- Division of Quantum
and Physical
Chemistry and INPAC Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan, 200F,
3001, Belgium
| | - Liviu F. Chibotaru
- Division of Quantum
and Physical
Chemistry and INPAC Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan, 200F,
3001, Belgium
| | - Muralee Murugesu
- Chemistry Department and the
Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5,
Canada
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30
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Ruamps R, Maurice R, Batchelor L, Boggio-Pasqua M, Guillot R, Barra AL, Liu J, Bendeif EE, Pillet S, Hill S, Mallah T, Guihéry N. Giant Ising-Type Magnetic Anisotropy in Trigonal Bipyramidal Ni(II) Complexes: Experiment and Theory. J Am Chem Soc 2013; 135:3017-26. [DOI: 10.1021/ja308146e] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Renaud Ruamps
- Laboratoire de Chimie et Physique
Quantiques, Université de Toulouse 3, 118 route de Narbonne, 31062 Toulouse cedex 06, France
| | - Rémi Maurice
- Laboratoire de Chimie et Physique
Quantiques, Université de Toulouse 3, 118 route de Narbonne, 31062 Toulouse cedex 06, France
- Department of Theoretical Chemistry,
Zernike Institute for Advanced Materials, University of Groningen, The Netherlands
- Departament de Química
Física i Inorganica, Universitat Rovira i Virgili, Marcel.lí Domingo s/n, 43007 Tarragona, Spain
| | - Luke Batchelor
- Université Paris Sud 11, CNRS, Institut de Chimie Moléculaire
et des Matériaux d’Orsay, F-91405 Orsay, France
| | - Martial Boggio-Pasqua
- Laboratoire de Chimie et Physique
Quantiques, Université de Toulouse 3, 118 route de Narbonne, 31062 Toulouse cedex 06, France
| | - Régis Guillot
- Université Paris Sud 11, CNRS, Institut de Chimie Moléculaire
et des Matériaux d’Orsay, F-91405 Orsay, France
| | - Anne Laure Barra
- Laboratoire National des Champs
Magnétiques Intenses, UPR CNRS 3228, Université J. Fourier, 25, Avenue des Martyrs, B.P. 166, 38042
Grenoble Cedex 9, France
| | - Junjie Liu
- National
High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310,
United States
| | - El-Eulmi Bendeif
- Université de Lorraine, CRM2, UMR 7036, Boulevard des Aiguillettes,
Vandoeuvre les Nancy, F-54506, France
- CNRS, CRM2, UMR 7036, Boulevard
des Aiguillettes, Vandoeuvre les Nancy, F-54506, France
| | - Sébastien Pillet
- Université de Lorraine, CRM2, UMR 7036, Boulevard des Aiguillettes,
Vandoeuvre les Nancy, F-54506, France
- CNRS, CRM2, UMR 7036, Boulevard
des Aiguillettes, Vandoeuvre les Nancy, F-54506, France
| | - Stephen Hill
- National
High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310,
United States
- Department
of Physics, Florida State University, Tallahassee,
Florida 32306,
United States
| | - Talal Mallah
- Université Paris Sud 11, CNRS, Institut de Chimie Moléculaire
et des Matériaux d’Orsay, F-91405 Orsay, France
| | - Nathalie Guihéry
- Laboratoire de Chimie et Physique
Quantiques, Université de Toulouse 3, 118 route de Narbonne, 31062 Toulouse cedex 06, France
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31
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Ruamps R, Batchelor LJ, Maurice R, Gogoi N, Jiménez-Lozano P, Guihéry N, de Graaf C, Barra AL, Sutter JP, Mallah T. Origin of the magnetic anisotropy in heptacoordinate Ni(II) and Co(II) complexes. Chemistry 2012. [PMID: 23180690 DOI: 10.1002/chem.201202492] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The nature and magnitude of the magnetic anisotropy of heptacoordinate mononuclear Ni(II) and Co(II) complexes were investigated by a combination of experiment and ab initio calculations. The zero-field splitting (ZFS) parameters D of [Ni(H(2)DAPBH)(H(2)O)(2)](NO(3))(2)⋅2 H(2)O (1) and [Co(H(2)DAPBH)(H(2)O)(NO(3))](NO(3)) [2; H(2)DAPBH = 2,6-diacetylpyridine bis- (benzoyl hydrazone)] were determined by means of magnetization measurements and high-field high-frequency EPR spectroscopy. The negative D value, and hence an easy axis of magnetization, found for the Ni(II) complex indicates stabilization of the highest M(S) value of the S = 1 ground spin state, while a large and positive D value, and hence an easy plane of magnetization, found for Co(II) indicates stabilization of the M(S) = ±1/2 sublevels of the S = 3/2 spin state. Ab initio calculations were performed to rationalize the magnitude and the sign of D, by elucidating the chemical parameters that govern the magnitude of the anisotropy in these complexes. The negative D value for the Ni(II) complex is due largely to a first excited triplet state that is close in energy to the ground state. This relatively small energy gap between the ground and the first excited state is the result of a small energy difference between the d(xy) and d(x(2)-y(2)) orbitals owing to the pseudo-pentagonal-bipyramidal symmetry of the complex. For Co(II), all of the excited states contribute to a positive D value, which accounts for the large magnitude of the anisotropy for this complex.
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Affiliation(s)
- Renaud Ruamps
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse III, 118, route de Narbonne, 31062 Toulouse, France
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32
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Taylor SM, Sanz S, McIntosh RD, Beavers CM, Teat SJ, Brechin EK, Dalgarno SJ. p-tert-Butylcalix[8]arene: An Extremely Versatile Platform for Cluster Formation. Chemistry 2012; 18:16014-22. [DOI: 10.1002/chem.201202644] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Indexed: 11/09/2022]
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33
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Bhunia A, Gamer MT, Ungur L, Chibotaru LF, Powell AK, Lan Y, Roesky PW, Menges F, Riehn C, Niedner-Schatteburg G. From a Dy(III) Single Molecule Magnet (SMM) to a Ferromagnetic [Mn(II)Dy(III)Mn(II)] Trinuclear Complex. Inorg Chem 2012; 51:9589-97. [DOI: 10.1021/ic300065x] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Asamanjoy Bhunia
- Institut für
Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, 76128 Karlsruhe, Germany
| | - Michael T. Gamer
- Institut für
Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, 76128 Karlsruhe, Germany
| | - Liviu Ungur
- Division of Quantum and Physical
Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001 Leuven, Belgium
- INPAC—Institute of Nanoscale
Physics and Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001 Leuven, Belgium
| | - Liviu F. Chibotaru
- Division of Quantum and Physical
Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001 Leuven, Belgium
| | - Annie K. Powell
- Institut für
Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, 76128 Karlsruhe, Germany
- Institut für Nanotechnologie, Karlsruher Institut für Technologie (KIT), Postfach
3640, D-76021 Karlsruhe, Germany
| | - Yanhua Lan
- Institut für
Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, 76128 Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für
Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15, 76128 Karlsruhe, Germany
| | - Fabian Menges
- Fachbereich Chemie, Technische Universität Kaiserslautern und Landesforschungszentrum OPTIMAS, Erwin-Schrödinger-Straße,
Gebäude 52, 67663 Kaiserslautern, Germany
| | - Christoph Riehn
- Fachbereich Chemie, Technische Universität Kaiserslautern und Landesforschungszentrum OPTIMAS, Erwin-Schrödinger-Straße,
Gebäude 52, 67663 Kaiserslautern, Germany
| | - Gereon Niedner-Schatteburg
- Fachbereich Chemie, Technische Universität Kaiserslautern und Landesforschungszentrum OPTIMAS, Erwin-Schrödinger-Straße,
Gebäude 52, 67663 Kaiserslautern, Germany
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Kumari H, Dennis CL, Mossine AV, Deakyne CA, Atwood JL. Exploring the magnetic behavior of nickel-coordinated pyrogallol[4]arene nanocapsules. ACS NANO 2012; 6:272-275. [PMID: 22148724 DOI: 10.1021/nn203540e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The magnetic behavior of nickel-seamed C-propylpyrogallol[4]arene dimeric and hexameric nanocapsular assemblies has been investigated in the solid state using a SQUID magnetometer. These dimeric and hexameric capsular entities show magnetic differentiation both in terms of moment per nanocapsule and potential antiferromagnetic interactions within individual nanocapsules. The weak antiferromagnetic behavior observed at low temperatures indicates dipolar interactions between neighboring nickel atoms; however, this effect is higher in the hexameric nickel-seamed assembly. The differences in magnetic behavior of dimer versus hexamer can be attributed to different coordination environments and metal arrangements in the two nanocapsular assemblies.
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Affiliation(s)
- Harshita Kumari
- Department of Chemistry, University of Missouri-Columbia, 601 South College Avenue, Columbia, Missouri 65211, USA
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Magnetic Anisotropy in a Dysprosium/DOTA Single-Molecule Magnet: Beyond Simple Magneto-Structural Correlations. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107453] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Cucinotta G, Perfetti M, Luzon J, Etienne M, Car PE, Caneschi A, Calvez G, Bernot K, Sessoli R. Magnetic Anisotropy in a Dysprosium/DOTA Single-Molecule Magnet: Beyond Simple Magneto-Structural Correlations. Angew Chem Int Ed Engl 2012; 51:1606-10. [DOI: 10.1002/anie.201107453] [Citation(s) in RCA: 482] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Indexed: 11/10/2022]
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Maurice R, Vendier L, Costes JP. Magnetic Anisotropy in NiII–YIII Binuclear Complexes: On the Importance of Both the First Coordination Sphere of the NiII Ion and the YIII Ion Belonging to the Second Coordination Sphere. Inorg Chem 2011; 50:11075-81. [DOI: 10.1021/ic201623e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rémi Maurice
- Laboratoire de Chimie et de Physique Quantique, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cedex 4, France
- Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel.lí Domingo s/n, 43007 Tarragona, Spain
| | - Laure Vendier
- LCC (Laboratoire de Chimie de Coordination), CNRS, 205 route de Narbonne, F-31077 Toulouse, France
- UPS, INPT, LCC, Université de Toulouse, F-31077 Toulouse, France
| | - Jean-Pierre Costes
- LCC (Laboratoire de Chimie de Coordination), CNRS, 205 route de Narbonne, F-31077 Toulouse, France
- UPS, INPT, LCC, Université de Toulouse, F-31077 Toulouse, France
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Rota JB, Knecht S, Fleig T, Ganyushin D, Saue T, Neese F, Bolvin H. Zero field splitting of the chalcogen diatomics using relativistic correlated wave-function methods. J Chem Phys 2011; 135:114106. [DOI: 10.1063/1.3636084] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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39
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Lin PH, Smythe NC, Gorelsky SI, Maguire S, Henson NJ, Korobkov I, Scott BL, Gordon JC, Baker RT, Murugesu M. Importance of Out-of-State Spin–Orbit Coupling for Slow Magnetic Relaxation in Mononuclear FeII Complexes. J Am Chem Soc 2011; 133:15806-9. [DOI: 10.1021/ja203845x] [Citation(s) in RCA: 188] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Po-Heng Lin
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Nathan C. Smythe
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Serge I. Gorelsky
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Steven Maguire
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Neil J. Henson
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Ilia Korobkov
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Brian L. Scott
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - John C. Gordon
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - R. Tom Baker
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
| | - Muralee Murugesu
- Department of Chemistry and ‡Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Chemistry Division, ⊥Theoretical Division, and ∥Materials Physics and Applications Division, Los Alamos National Laboratory, MS J582, Los Alamos, New Mexico 87545, United States
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Maurice R, Sivalingam K, Ganyushin D, Guihéry N, de Graaf C, Neese F. Theoretical Determination of the Zero-Field Splitting in Copper Acetate Monohydrate. Inorg Chem 2011; 50:6229-36. [DOI: 10.1021/ic200506q] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rémi Maurice
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse, France
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Kanthen Sivalingam
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, 53115 Bonn, Germany
| | - Dmitry Ganyushin
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, 53115 Bonn, Germany
| | - Nathalie Guihéry
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse, France
| | - Coen de Graaf
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Frank Neese
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, 53115 Bonn, Germany
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41
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McIntosh RD, Taylor SM, Sanz S, Beavers CM, Teat SJ, Brechin EK, Dalgarno SJ. p-tert-Butylcalix[8]arene: A support for sodium and sodium-manganese clusters that exhibit interesting self-assembly properties. Dalton Trans 2011; 40:12265-70. [DOI: 10.1039/c1dt10821b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Borta A, Jeanneau E, Chumakov Y, Luneau D, Ungur L, Chibotaru LF, Wernsdorfer W. Synthesis, structure, magnetism and theoretical study of a series of complexes with a decanuclear core [Ln(iii)2Cu(ii)8] (Ln = Y, Gd, Tb, Dy). NEW J CHEM 2011. [DOI: 10.1039/c0nj00931h] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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43
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Maurice R, Pradipto AM, Guihéry N, Broer R, de Graaf C. Antisymmetric Magnetic Interactions in Oxo-Bridged Copper(II) Bimetallic Systems. J Chem Theory Comput 2010; 6:3092-101. [DOI: 10.1021/ct100329n] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- R. Maurice
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse France, Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - A. M. Pradipto
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse France, Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - N. Guihéry
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse France, Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - R. Broer
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse France, Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - C. de Graaf
- Laboratoire de Chimie et Physique Quantiques, Université de Toulouse 3, 118, route de Narbonne, 31062 Toulouse France, Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain, Zernike Institute for Advanced Materials, University of Groningen, Groningen 9747AG, The Netherlands, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
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44
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Maurice R, de Graaf C, Guihéry N. Magnetostructural relations from a combined ab initio and ligand field analysis for the nonintuitive zero-field splitting in Mn(III) complexes. J Chem Phys 2010; 133:084307. [DOI: 10.1063/1.3480014] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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Maurice R, Bastardis R, Graaf CD, Suaud N, Mallah T, Guihéry N. Universal Theoretical Approach to Extract Anisotropic Spin Hamiltonians. J Chem Theory Comput 2009; 5:2977-84. [PMID: 26609979 DOI: 10.1021/ct900326e] [Citation(s) in RCA: 226] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Monometallic Ni(II) and Co(II) complexes with large magnetic anisotropy are studied using correlated wave function based ab initio calculations. Based on the effective Hamiltonian theory, we propose a scheme to extract both the parameters of the zero-field splitting (ZFS) tensor and the magnetic anisotropy axes. Contrarily to the usual theoretical procedure of extraction, the method presented here determines the sign and the magnitude of the ZFS parameters in any circumstances. While the energy levels provide enough information to extract the ZFS parameters in Ni(II) complexes, additional information contained in the wave functions must be used to extract the ZFS parameters of Co(II) complexes. The effective Hamiltonian procedure also enables us to confirm the validity of the standard model Hamiltonian to produce the magnetic anisotropy of monometallic complexes. The calculated ZFS parameters are in good agreement with high-field, high-frequency electron paramagnetic resonance spectroscopy and frequency domain magnetic resonance spectroscopy data. A methodological analysis of the results shows that the ligand-to-metal charge transfer configurations must be introduced in the reference space to obtain quantitative agreement with the experimental estimates of the ZFS parameters.
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Affiliation(s)
- Rémi Maurice
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Roland Bastardis
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Coen de Graaf
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Nicolas Suaud
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Talal Mallah
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
| | - Nathalie Guihéry
- Laboratoire de Chimie et Physique Quantiques, IRSAMC/UMR5626, Université de Toulouse III, 118 route de Narbonne, F-31062 Toulouse Cédex 4, France, Laboratoire de Mathématiques, Physiques et Systemes, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France, Departament de Química Física i Inorganica, Universitat Rovira i Virgili, Marcel lí Domingo s/n, 43007 Tarragona, Spain, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris sud 11, 91405 Orsay, France, and Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010, Barcelona, Spain
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Bi Y, Wang XT, Liao W, Wang X, Wang X, Zhang H, Gao S. A {Co32} Nanosphere Supported by p-tert-Butylthiacalix[4]arene. J Am Chem Soc 2009; 131:11650-1. [DOI: 10.1021/ja9034939] [Citation(s) in RCA: 224] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yanfeng Bi
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xiu-Teng Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Wuping Liao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xiaofei Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xinwu Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Song Gao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, China, Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, 100871 Beijing, China, and Graduate University of Chinese Academy of Sciences, 100049 Beijing, China
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Singh R, Banerjee A, Gordon Y, Rajak KK. Binuclear cobalt(II/II) and cobalt(II/III) chelates with O2N2 ligands: synthesis, structure and magnetic studies. TRANSIT METAL CHEM 2009. [DOI: 10.1007/s11243-009-9249-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Ungur L, Van den Heuvel W, Chibotaru LF. Ab initio investigation of the non-collinear magnetic structure and the lowest magnetic excitations in dysprosium triangles. NEW J CHEM 2009. [DOI: 10.1039/b903126j] [Citation(s) in RCA: 287] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Langley S, Helliwell M, Sessoli R, Teat SJ, Winpenny REP. Synthesis and structural and magnetic characterisation of cobalt(ii)–sodium phosphonate cage compounds. Dalton Trans 2009:3102-10. [DOI: 10.1039/b819976k] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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