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Orts-Arroyo M, Rojas-Dotti C, Moliner N, Martínez-Lillo J. Lipoic Acid-Functionalized Hexanuclear Manganese(III) Nanomagnets Suitable for Surface Grafting. Int J Mol Sci 2023; 24:ijms24108645. [PMID: 37239996 DOI: 10.3390/ijms24108645] [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: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Highly anisotropic single-molecule magnets (SMMs) have attracted much interest in the field of molecular magnetism because of their spin features and potential technological applications. Additionally, a great effort has been devoted to the functionalization of such molecule-based systems which are made with ligands containing functional groups suitable to connect SMMs to junction devices or to perform their grafting on surfaces of different substrates. We have synthesized and characterized two lipoic acid-functionalized and oxime-based Mn(III) compounds, of formula [Mn6(μ3-O)2(H2N-sao)6(lip)2(MeOH)6][Mn6(μ3-O)2(H2N-sao)6(cnph)2(MeOH)6]}·10MeOH (1) and [Mn6(μ3-O)2(H2N-sao)6(lip)2(EtOH)6]·EtOH·2H2O (2) [H2N-saoH2 = salicylamidoxime, lip = lipoate anion, cnph = 2-cyanophenolate anion]. Compound 1 crystallizes in the space group Pī of the triclinic system and 2 crystallizes in the space group C2/c of the monoclinic system. In the crystal, neighboring Mn6 entities are linked using non-coordinating solvent molecules, which are H-bonded to N atoms of -NH2 groups of amidoxime ligand. In addition, Hirshfeld surfaces of 1 and 2 were calculated to study the variety of intermolecular interactions and the different levels of importance that take place in their crystal lattice; this type of computed study is the first time performed on Mn6 complexes. The study of the magnetic properties of 1 and 2 through dc magnetic susceptibility measurements reveals the coexistence of ferromagnetic and antiferromagnetic exchange couplings between the Mn(III) metal ions in both compounds, the latter being the predominant magnetic interaction. A spin S = 4 value of the ground state was obtained using isotropic simulations of the experimental magnetic susceptibility data for both 1 and 2. Ac magnetic susceptibility measurements show features typical of slow relaxation of the magnetization in 1 and 2, which indicate that SMM behavior takes place in both compounds.
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Affiliation(s)
- Marta Orts-Arroyo
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Carlos Rojas-Dotti
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Nicolás Moliner
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - José Martínez-Lillo
- Departament de Química Inorgànica, Instituto de Ciencia Molecular (ICMol), Universitat de València, c/Catedrático José Beltrán 2, 46980 Paterna, Spain
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Wytrych P, Utko J, Stefanski M, Kłak J, Lis T, John Ł. Synthesis, Crystal Structures, and Optical and Magnetic Properties of Samarium, Terbium, and Erbium Coordination Entities Containing Mono-Substituted Imine Silsesquioxane Ligands. Inorg Chem 2023; 62:2913-2923. [PMID: 36716237 PMCID: PMC9930112 DOI: 10.1021/acs.inorgchem.2c04371] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Mono-substituted cage-like silsesquioxanes of the T8-type can play the role of potential ligands in the coordination chemistry. In this paper, we report on imine derivatives as ligands for samarium, terbium, and erbium cations and discuss their efficient synthesis, crystal structures, and magnetic and optical properties. X-ray analysis of the lanthanide coordination entities [MCl3(POSS)3]·2THF [M = Er3+ (3), Tb3+ (4), Sm3+ (5)] showed that all three compounds crystallize in the same space group with similar lattice parameters. All compounds contain an octahedrally coordinated metal atom, and additionally, 3 and 5 structures are strictly isomorphous. However, surprisingly, there are two different molecules in the crystal structure of the terbium coordination entity 4, monomer (sof 65%) and dimer (sof 35%), with one and two metal centers. Absorption measurements of the investigated materials recorded at 300 K showed that regardless of the lanthanide involved, their energy band gap equals 2.7 eV. Moreover, the analogues containing Tb3+ and Sm3+ exhibit luminescence typical of these rare earth ions in the visible and infrared spectral range, while the compound with Er3+ does not generate any emission. Direct current variable-temperature magnetic susceptibility measurements on polycrystalline samples of 3-5 were performed between 1.8 and 300 K. The magnetic properties of 3 and 4 are dominated by the crystal field effect on the Er3+ and Tb3+ ions, respectively, hiding the magnetic influence between the magnetic cations of adjacent molecules. Complex 5 exhibits a nature typical for the paramagnetism of the samarium(III) cation.
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Affiliation(s)
- Patrycja Wytrych
- Faculty
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383Wrocław, Poland
| | - Józef Utko
- Faculty
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383Wrocław, Poland
| | - Mariusz Stefanski
- Institute
of Low Temperature and Structure Research, Polish Academy of Sciences, 2 Okólna, 50-422Wrocław, Poland
| | - Julia Kłak
- Faculty
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383Wrocław, Poland
| | - Tadeusz Lis
- Faculty
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383Wrocław, Poland
| | - Łukasz John
- Faculty
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383Wrocław, Poland,
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Dhingra A, Hu X, Borunda MF, Johnson JF, Binek C, Bird J, N'Diaye AT, Sutter JP, Delahaye E, Switzer ED, Barco ED, Rahman TS, Dowben PA. Molecular transistors as substitutes for quantum information applications. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:441501. [PMID: 35998608 DOI: 10.1088/1361-648x/ac8c11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Applications of quantum information science (QIS) generally rely on the generation and manipulation of qubits. Still, there are ways to envision a device with a continuous readout, but without the entangled states. This concise perspective includes a discussion on an alternative to the qubit, namely the solid-state version of the Mach-Zehnder interferometer, in which the local moments and spin polarization replace light polarization. In this context, we provide some insights into the mathematics that dictates the fundamental working principles of quantum information processes that involve molecular systems with large magnetic anisotropy. Transistors based on such systems lead to the possibility of fabricating logic gates that do not require entangled states. Furthermore, some novel approaches, worthy of some consideration, exist to address the issues pertaining to the scalability of quantum devices, but face the challenge of finding the suitable materials for desired functionality that resemble what is sought from QIS devices.
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Affiliation(s)
- Archit Dhingra
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588-0299, United States of America
| | - Xuedong Hu
- Department of Physics, University at Buffalo, Buffalo, NY, 14260-1500, United States of America
| | - Mario F Borunda
- Department of Physics, Oklahoma State University, Stillwater, OK 74078, United States of America
| | - Joseph F Johnson
- Department of Mathematics & Statistics, Villanova University, 800 E. Lancaster Ave., Villanova, PA 19085, United States of America
| | - Christian Binek
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588-0299, United States of America
- Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE 68588-0299, United States of America
| | - Jonathan Bird
- Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY, 14260-1900, United States of America
| | - Alpha T N'Diaye
- Advanced Light Source (ALS, BL631), Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States of America
| | - Jean-Pascal Sutter
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS), Université de Toulouse, CNRS, F-31000 Toulouse, France
| | - Emilie Delahaye
- Laboratoire de Chimie de Coordination du CNRS (LCC-CNRS), Université de Toulouse, CNRS, F-31000 Toulouse, France
| | - Eric D Switzer
- Department of Physics, University of Central Florida, Orlando, FL 32816, United States of America
| | - Enrique Del Barco
- Department of Physics, University of Central Florida, Orlando, FL 32816, United States of America
| | - Talat S Rahman
- Department of Physics, University of Central Florida, Orlando, FL 32816, United States of America
| | - Peter A Dowben
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588-0299, United States of America
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Antiferromagnetically coupled iso-structural CrIII, MnIII and FeIII complexes of a tetradentate Schiff base ligand derived from o-phenylenediamine. TRANSIT METAL CHEM 2022. [DOI: 10.1007/s11243-022-00510-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Osypiuk D, Cristóvão B, Mazur L. New heteronuclear complexes of PdII–LnIII–PdII with Schiff base ligand: Synthesis, crystal structures and chemical properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Cornerstones in Contemporary Inorganic Chemistry. INORGANICS 2022. [DOI: 10.3390/inorganics10080108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
I am very happy to be able to present this Special Issue of Inorganics [...]
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Field-Induced Single Molecule Magnetic Behavior of Mononuclear Cobalt(II) Schiff Base Complex Derived from 5-Bromo Vanillin. INORGANICS 2022. [DOI: 10.3390/inorganics10080105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A mononuclear Co(II) complex of a Schiff base ligand derived from 5-Bromo-vanillin and 4-aminoantipyrine, that has a compressed tetragonal bipyramidal geometry and exhibiting field-induced slow magnetic relaxation, has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and molecular spectroscopy. In the crystal packing, a hydrogen-bonded dimer structural topology has been observed with two distinct metal centers having slightly different bond parameters. The complex has been further investigated for its magnetic nature on a SQUID magnetometer. The DC magnetic data confirm that the complex behaves as a typical S = 3/2 spin system with a sizable axial zero-field splitting parameter D/hc = 38 cm−1. The AC susceptibility data reveal that the relaxation time for the single-mode relaxation process is τ = 0.16(1) ms at T = 2.0 K and BDC = 0.12 T.
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Gebrezgiabher M, Schlittenhardt S, Rajnák C, Kuchár J, Sergawie A, Černák J, Ruben M, Thomas M, Boča R. Triangulo-{Er III 3} complex showing field supported slow magnetic relaxation. RSC Adv 2022; 12:21674-21680. [PMID: 35975040 PMCID: PMC9350813 DOI: 10.1039/d2ra04328a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/01/2022] Open
Abstract
The triangulo-{Er3} complex [Er3Cl(o-van)3(OH)2(H2O)5]Cl3·nH2O (n = 9.4; H(o-van) = o-vanillin) (1) was generated by an in situ method. The isolated Er(iii) complex 1 was characterized by elemental analysis and molecular spectroscopy. The results of single crystal X-ray diffraction studies have shown that 1 is built up of trinuclear [Er3Cl(o-van)3(OH)2(H2O)5]3+ complex cations, chloride anions and water solvate molecules. Within the complex cation the three Er(iii) central atoms are placed at the apexes of a triangle which are bridged by three (o-van)- ligands with additional chelating functions and two μ3-OH- ligands. Additionally five aqua and one chlorido ligands complete the octa-coordination of the three Er(iii) atoms. AC susceptibility measurements reveal that the compound exhibits slow magnetic relaxation with two relaxation modes.
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Affiliation(s)
- Mamo Gebrezgiabher
- Department of Industrial Chemistry, College of Applied Sciences, Nanotechnology Excellence Center, Addis Ababa Science and Technology University Addis Ababa P.O. Box 16417 Ethiopia .,Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius 91701 Trnava Slovakia
| | - Sören Schlittenhardt
- Institute of Nanotechnology, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Cyril Rajnák
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius 91701 Trnava Slovakia
| | - Juraj Kuchár
- Department of Inorganic Chemistry, Institute of Chemistry, P. J. Šafárik University in Košice 041 80 Košice Slovakia
| | - Assefa Sergawie
- Department of Industrial Chemistry, College of Applied Sciences, Nanotechnology Excellence Center, Addis Ababa Science and Technology University Addis Ababa P.O. Box 16417 Ethiopia
| | - Juraj Černák
- Department of Inorganic Chemistry, Institute of Chemistry, P. J. Šafárik University in Košice 041 80 Košice Slovakia
| | - Mario Ruben
- Institute of Nanotechnology, Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany.,Institute of Quantum Materials and Technologies (IQMT, ), Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany.,Centre Européen de Science Quantique (CESQ), Institut de Science et d'Ingénierie Supramoléculaires (ISIS, UMR 7006), CNRS-Université de Strasbourg 8 allée Gaspard Monge BP 70028 67083 Strasbourg Cedex France
| | - Madhu Thomas
- Department of Industrial Chemistry, College of Applied Sciences, Nanotechnology Excellence Center, Addis Ababa Science and Technology University Addis Ababa P.O. Box 16417 Ethiopia
| | - Roman Boča
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius 91701 Trnava Slovakia
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New Heterotrinuclear Cu IILn IIICu II (Ln = Ho, Er) Compounds with the Schiff Base: Syntheses, Structural Characterization, Thermal and Magnetic Properties. MATERIALS 2022; 15:ma15124299. [PMID: 35744355 PMCID: PMC9231215 DOI: 10.3390/ma15124299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/09/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023]
Abstract
New heterotrinuclear complexes with the general formula [Cu2Ln(H2L)(HL)(NO3)2]·MeOH (Ln = Ho (1), Er (2), H4L = N,N′-bis(2,3-dihydroxybenzylidene)-1,3-diaminopropane) were synthesized using compartmental Schiff base ligand in conjugation with auxiliary ligands. The compounds were characterized by elemental analysis, ATR-FTIR spectroscopy, X-ray diffraction, TG, DSC, TG-FTIR and XRD analysis. The N2O4 salen-type ligand coordinates 3d and 4f metal centers via azomethine nitrogen and phenoxo oxygen atoms, respectively, to form heteropolynuclear complexes having CuO2Ln cores. In the crystals 1 and 2, two terminal Cu(II) ions are penta-coordinated with a distorted square-pyramidal geometry and a LnIII ion with trigonal dodecahedral geometry is coordinated by eight oxygen atoms from [CuII(H2L)(NO3)]− and [CuII(HL)(NO3)]2− units. Compounds 1 and 2 are stable at room temperature. During heating, they decompose in a similar way. In the first decomposition step, they lose solvent molecules. The exothermic decomposition of ligands is connected with emission large amounts of gaseous products e.g., water, nitric oxides, carbon dioxide, carbon monoxide. The final solid products of decomposition 1 and 2 in air are mixtures of CuO and Ho2O3/Er2O3. The measurements of magnetic susceptibilities and field dependent magnetization indicate the ferromagnetic interaction between CuII and HoIII ions 1.
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Abstract
A tetranuclear dysprosium Schiff base complex was isolated by reacting dysprosium chloride with 2-hydroxy-3-methoxybenzaldehyde and 2-(aminomethyl)pyridine in-situ under basic conditions. The isolated Dy(III) complex was characterized by elemental analyses, single crystal X-ray diffraction and molecular spectroscopy. The complex crystallizes in the triclinic space group P-1 with unit cell parameters of a = 10.2003 (4), b = 13.8602 (5), c = 14.9542 (6), α = 94.523 (3), β = 109.362 (4), and γ = 99.861 (3). The magnetic properties of 1 have been investigated by DC and AC susceptibility measurements. The DC measurements reveal weak exchange coupling of antiferromagnetic nature. In the AC measurement, the complex shows a slow relaxation of magnetization in the absence of an external magnetic field.
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One-Dimensional Gadolinium (III) Complexes Based on Alpha- and Beta-Amino Acids Exhibiting Field-Induced Slow Relaxation of Magnetization. INORGANICS 2022. [DOI: 10.3390/inorganics10030032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Gadolinium (III) complexes exhibiting slow relaxation of magnetization are uncommon and have been much less studied than other compounds based on anisotropic lanthanide (III) ions. We prepared two one-dimensional gadolinium (III) complexes based on α-glycine (gly) and β-alanine (β-ala) amino acids, with the formula {[Gd2(gly)6(H2O)4](ClO4)6·5H2O}n (1) and {[Gd2(β-ala)6(H2O)4](ClO4)6·H2O}n (2), which were magneto-structurally characterized. Compounds 1 and 2 crystallize in the triclinic system (space group Pī). In complex 1, two Gd (III) ions are eight-coordinate and bound to six oxygen atoms from six gly ligands and two oxygen atoms from two water molecules, the metal ions showing different geometries (bicapped trigonal prism and square antiprism). In complex 2, two Gd (III) ions are nine-coordinate and bound to seven oxygen atoms from six β-ala ligands and two oxygen atoms from two water molecules in the same geometry (capped square antiprism). Variable-temperature dc magnetic susceptibility measurements performed on microcrystalline samples of 1 and 2 show similar magnetic behavior for both compounds, with antiferromagnetic coupling between the Gd (III) ions connected through carboxylate groups. Ac magnetic susceptibility measurements reveal slow relaxation of magnetization in the presence of an external dc field in both compounds, hence indicating the occurrence of the field-induced single-molecule magnet (SMM) phenomenon in both 1 and 2.
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Rodrigues FS, de Almeida HB, Bortoluzzi AJ, Cuin A, de Almeida ET, de Góis EP, da Silva JR, Azevedo RB, Camargo MA. Unexpected synthesis of benzimidazole from Schiff base mediated by lanthanide chloride and citotoxic activities. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Long J, Lyubov DM, Gurina GA, Nelyubina YV, Salles F, Guari Y, Larionova J, Trifonov AA. Using N-Heterocyclic Carbenes as Weak Equatorial Ligands to Design Single-Molecule Magnets: Zero-Field Slow Relaxation in Two Octahedral Dysprosium(III) Complexes. Inorg Chem 2022; 61:1264-1269. [PMID: 34994542 DOI: 10.1021/acs.inorgchem.1c03429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the synthesis, structures, and magnetic investigations of two new octahedral dysprosium complexes, based on the original N-heterocyclic carbene (NHC) tridentate bis(phenoxide) ligand, of the respective formulas mer-[DyL(THF)2Cl] (1) and mer-[DyL(THF)3][BPh4] (2), where L = 1,3-bis(3,5-di-tert-butyl-2-oxidophenyl)-5,5-dimethyl-3,4,5,6-tetrahydropyrimidin-1-ium chloride and THF = tetrahydrofuran. The short Dy-O distances in the axial direction in association with the weak donor ability of the NHC moiety provide a suitable environment for slow relaxation of magnetization, overcoming the previous single-molecule magnets based on NHC ligands.
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Affiliation(s)
- Jérôme Long
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France.,Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France
| | - Dmitry M Lyubov
- Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences (RAS), 28 Vavilova str., 119334 Moscow, Russia.,Institute of Organometallic Chemistry, Russian Academy of Sciences (RAS), 49 Tropinina str., GSP-445, 630950 Nizhny, Novgorod, Russia
| | - Galina A Gurina
- Institute of Organometallic Chemistry, Russian Academy of Sciences (RAS), 49 Tropinina str., GSP-445, 630950 Nizhny, Novgorod, Russia
| | - Yulia V Nelyubina
- Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences (RAS), 28 Vavilova str., 119334 Moscow, Russia
| | - Fabrice Salles
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Yannick Guari
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | | | - Alexander A Trifonov
- Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences (RAS), 28 Vavilova str., 119334 Moscow, Russia.,Institute of Organometallic Chemistry, Russian Academy of Sciences (RAS), 49 Tropinina str., GSP-445, 630950 Nizhny, Novgorod, Russia
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Ashebr T, Li XL, Zhao C, Yang Q, Tang J. Bis-pyrazolone-based dysprosium(III) complexes: zero-field single-molecule magnet behavior in the [2 × 2] grid DyIII4 cluster. CrystEngComm 2022. [DOI: 10.1039/d2ce01067d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We assembled two new Dy(III) compounds, namely, [Dy4(L1)4(OH)4]·2CH3OH (1) and [Dy2(L2)2(HL2)2(CH3CN)2]N(C2H5)3 (2) (where H2L1 and H2L2 are methyl-substituted and p-tolyl substituted ligands respectively) using a bis-pyrazolone carbohydrazide based multi-dentate hydrazone...
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15
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Gebrezgiabher M, Schlittenhardt S, Rajnák C, Kuchár J, Sergawie A, Černák J, Ruben M, Thomas M, Boca R. Dinuclear Dysprosium Schiff base complex showing slow magnetic relaxation in the absence of an external magnetic field. NEW J CHEM 2022. [DOI: 10.1039/d2nj02591d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dinuclear dysprosium(III) complex [Dy2(NO3)3(L)3]•nCH3OH (n = 1.20; HL = (2-[(2-hydroxy-propylimino)methyl]phenol)) (1) was isolated when the dysprosium nitrate reacted with a solution of salicylaldehyde and 1-amino-2-propanol in basic medium under...
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Rare nuclearities in Mn/oxo cluster chemistry: Synthesis and characterization of a mixed-valence {MnII/III11} complex bearing acetate and salicylhydroximate(-3) bridging/chelating ligands. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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