1
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Cabrosi D, Mecchia Ortiz JH, Carrella LM, Rentschler E, Alborés P. SMM features of a large lanthanide family of butterfly CrIII2LnIII2 pivalate complexes (Ln = Gd, Tb, Dy, Ho, Er, Tm and Yb). Dalton Trans 2024; 53:12189-12198. [PMID: 38967417 DOI: 10.1039/d4dt01492h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
In this work we report the synthesis, structural characterization and magnetic properties of a family of butterfly complexes {Cr2Ln2} with Ln = Tb (4), Ho (5), Er (6), Tm (7) and Yb (8), extending the family of previously reported isostructural compounds with Gd (1), Dy (2) and Y (3). As in 1 and 2, an anti-ferromagnetic Cr(III)-Ln(III) exchange interaction is found. For oblate ions 4 and 5, SMM behavior with a purely Orbach relaxation mechanism is observed with thermal barriers of 38 cm-1 (4) and 32 cm-1 (5). Complex 4 displays hysteresis opening up to 2.4 K with loss of magnetization at zero field. The prolate complex ions 6 and 7 are field-induced SMM's with dominant Orbach, direct and QTM relaxation mechanisms. Compound 8 did not show SMM properties.
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Affiliation(s)
- Daiana Cabrosi
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Juan H Mecchia Ortiz
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Luca M Carrella
- Department Chemie, Johannes Gutenberg Universität Mainz, Duesbergweg 10-12, D-55128 Mainz, Germany
| | - Eva Rentschler
- Department Chemie, Johannes Gutenberg Universität Mainz, Duesbergweg 10-12, D-55128 Mainz, Germany
| | - Pablo Alborés
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
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2
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Panja A, Paul S, Moreno-Pineda E, Herchel R, Jana NC, Brandão P, Novitchi G, Wernsdorfer W. Insight into ferromagnetic interactions in Cu II-Ln III dimers with a compartmental ligand. Dalton Trans 2024; 53:2501-2511. [PMID: 38205580 PMCID: PMC10845014 DOI: 10.1039/d3dt03557c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
In the last two decades, efforts have been devoted to obtaining insight into the magnetic interactions between CuII and LnIII utilizing experimental and theoretical means. Experimentally, it has been observed that the exchange coupling (J) in CuII-LnIII systems is often found to be ferromagnetic for ≥4f7 metal ions. However, exchange interactions at sub-Kelvin temperatures between CuII and the anisotropic/isotropic LnIII ions are not often explored. In this report, we have synthesized a series of heterobimetallic [CuLn(HL)(μ-piv)(piv)2] complexes (LnIII = Gd (1), Tb (2), Dy (3) and Er (4)) from a new compartmental Schiff base ligand, N,N'-bis(3-methoxy-5-methylsalicylidene)-1,3-diamino-2-propanol (H3L). X-ray crystallographic analysis reveals that all four complexes are isostructural and isomorphous. Magnetic susceptibility measurements reveal a ferromagnetic coupling between the CuII ion and its respective LnIII ion for all the complexes, as often observed. Moreover, μ-SQUID studies, at sub-Kelvin temperatures, show S-shaped hysteresis loops indicating the presence of antiferromagnetic coupling in complexes 1-3. The antiferromagnetic interaction is explained by considering the shortest Cu⋯Cu distance in the crystal structure. The nearly closed loops for 1-3 highlight their fast relaxation characteristics, while the opened loops for 4 might arise from intermolecular ordering. CASSCF calculations allow the quantitative assessment of the interactions, which are further supported by BS-DFT calculations.
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Affiliation(s)
- Anangamohan Panja
- Department of Chemistry, Gokhale Memorial Girls' College, 1/1 Harish Mukherjee Road, Kolkata-700020, India.
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB 721152, India
| | - Sagar Paul
- Physikalisches Institut, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
| | - Eufemio Moreno-Pineda
- Universidad de Panamá, Facultad de Ciencias Naturales, Exactas y Tecnología, Depto. de Química-Física, 0824 Panamá, Panama
- Universidad de Panamá, Facultad de Ciencias Naturales, Exactas y Tecnología, Grupo de Investigación de Materiales, 0824 Panamá, Panama
| | - Radovan Herchel
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Narayan Ch Jana
- Department of Chemistry, Panskura Banamali College, Panskura RS, WB 721152, India
| | - Paula Brandão
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ghenadie Novitchi
- Laboratoire National des Champs Magnétiques Intenses, UPR CNRS 3228, Université Grenoble-Alpes, B.P. 166, 38042 Grenoble Cedex 9, France
| | - Wolfgang Wernsdorfer
- Physikalisches Institut, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
- Institute for Quantum Materials and Technology (IQMT), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen D-76344, Germany
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3
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Zabala-Lekuona A, Landart-Gereka A, Quesada-Moreno MM, Mota AJ, Díaz-Ortega IF, Nojiri H, Krzystek J, Seco JM, Colacio E. Zero-Field SMM Behavior Triggered by Magnetic Exchange Interactions and a Collinear Arrangement of Local Anisotropy Axes in a Linear Co 3II Complex. Inorg Chem 2023. [PMID: 37991724 DOI: 10.1021/acs.inorgchem.3c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
A new linear trinuclear Co(II)3 complex with a formula of [{Co(μ-L)}2Co] has been prepared by self-assembly of Co(II) ions and the N3O3-tripodal Schiff base ligand H3L, which is obtained from the condensation of 1,1,1-tris(aminomethyl)ethane and salicylaldehyde. Single X-ray diffraction shows that this compound is centrosymmetric with triple-phenolate bridging groups connecting neighboring Co(II) ions, leading to a paddle-wheel-like structure with a pseudo-C3 axis lying in the Co-Co-Co direction. The Co(II) ions at both ends of the Co(II)3 molecule exhibit distorted trigonal prismatic CoN3O3 geometry, whereas the Co(II) at the middle presents an elongated trigonal antiprismatic CoO6 geometry. The combined analysis of the magnetic data and theoretical calculations reveal strong easy-axis magnetic anisotropy for both types of Co(II) ions (|D| values higher than 115 cm-1) with the local anisotropic axes lying on the pseudo-C3 axis of the molecule. The magnetic exchange interaction between the middle and ends Co(II) ions, extracted by using either a Hamiltonian accounting for the isotropic magnetic coupling and ZFS or the Lines' model, was found to be medium to strong and antiferromagnetic in nature, whereas the interaction between the external Co(II) ions is weak antiferromagnetic. Interestingly, the compound exhibits slow relaxation of magnetization and open hysteresis at zero field and therefore SMM behavior. The significant magnetic exchange coupling found for [{Co(μ-L)}2Co] is mainly responsible for the quenching of QTM, which combined with the easy-axis local anisotropy of the CoII ions and the collinearity of their local anisotropy axes with the pseudo-C3 axis favors the observation of SMM behavior at zero field.
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Affiliation(s)
- Andoni Zabala-Lekuona
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 Donostia-San Sebastián, Spain
| | - Aritz Landart-Gereka
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - María Mar Quesada-Moreno
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Antonio J Mota
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
| | - Ismael F Díaz-Ortega
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - Hiroyuki Nojiri
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - Jurek Krzystek
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
| | - José M Seco
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 Donostia-San Sebastián, Spain
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain
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4
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Bellucci L, Carlotto S, Bottaro G, Babetto L, Labella L, Gallo E, Marchetti F, Samaritani S, Armelao L. Competing excitation paths in luminescent heterobimetallic Ln-Al complexes: Unraveling interactions via experimental and theoretical investigations. iScience 2023; 26:106614. [PMID: 37250321 PMCID: PMC10214411 DOI: 10.1016/j.isci.2023.106614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/15/2023] [Accepted: 03/31/2023] [Indexed: 05/31/2023] Open
Abstract
The interest for heterometallic lanthanide-d or-p metal (Ln-M) complexes is growing because of a potential cooperative or synergistic effect related to the proximity of two different metals in the same molecular architecture affording special tunable physical properties. To exploit the potentiality of Ln-M complexes, suitable synthetic approaches, and the in-depth understanding of the effect of each building block on their properties are mandatory. Here, we report the study on a family of heterometallic luminescent complexes [Ln(hfac)3Al(L)3], Ln= Eu3+ and Tb3+. Using different L ligands, we investigated the effect of the steric and electronic properties of the Al(L)3 fragment, highlighting the general validity of the employed synthetic route. A marked difference in the light emission of [Eu(hfac)3Al(L)3] and [Tb(hfac)3Al(L)3] complexes has been observed. Thanks to photoluminescence experiments and Density Functional Theory calculations, Ln3+ emissions are explained with a model involving two non-interacting excitation paths through hfac or Al(L)3 ligands.
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Affiliation(s)
- Luca Bellucci
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Silvia Carlotto
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Gregorio Bottaro
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Luca Babetto
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Luca Labella
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Elisa Gallo
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Scienze Chimiche e Tecnologie dei Materiali (DSCTM) Consiglio Nazionale delle Ricerche Piazzale A. Moro 7, 00185 Roma, Italy
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5
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Qu YX, Liao PY, Chen YC, Tong ML. Functional lanthanide complexes with N,N′-bis(2-hydroxybenzyl)-N,N′-bis(pyridin-2-ylmethyl)ethylenediamine (H2bbpen) derivatives: Coordination chemistry, single-molecule magnetism and optical properties. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214880] [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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6
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Qiao N, Xin XY, Guan XF, Zhang CX, Wang WM. Self-Assembly Bifunctional Tetranuclear Ln 2Ni 2 Clusters: Magnetic Behaviors and Highly Efficient Conversion of CO 2 under Mild Conditions. Inorg Chem 2022; 61:15098-15107. [PMID: 36094135 DOI: 10.1021/acs.inorgchem.2c02180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of heterometallic tetranuclear clusters, Ln2Ni2(NO3)4L4(μ3-OCH3)2·2(CH3CN) (Ln = Gd(1), Tb(2), Dy(3), Ho(4), Er(5); HL = methyl 3-methoxysalicylate), were synthesized solvothermally. The intramolecular synergistic effect of two metal centers of Ln(III) and Ni(II) and the exposed multimetallic sites serving as Lewis acid activators greatly increase the efficiency of the CO2 conversion, and the yield for cluster 3 can be achieved at 96% at atmospheric pressure and low temperature. In particular, the self-assembly multimetal center with polydentate ligand shows good generality and enhanced recyclability. The design of such 3d-4f heterometallic clusters provides an effective strategy for the conversion of CO2 under greener conditions. Meanwhile, magnetic investigations indicate that cluster 1 is a good candidate for magnetic refrigerant materials with a relatively large magnetocaloric effect (MCE) (-ΔSm = 28.5 J kg-1 K-1 at 3.0 K and 7.0 T), and cluster 3 shows single-molecular magnet behavior under zero dc field. Heterometallic clusters with special magnetic properties and good catalytic behavior for the conversion of CO2 are rare. Thus, they are potential bifunctional materials applied in practice.
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Affiliation(s)
- Na Qiao
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, P. R. China.,College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Xiao-Yan Xin
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Xiao-Fen Guan
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
| | - Chen-Xi Zhang
- College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, P. R. China
| | - Wen-Min Wang
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, P. R. China
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7
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Li G, Xie H, Yang S, Fu Y, Zhang Y, Wang Y. Dramatic Impact of Auxiliary Ligands on the Dynamic Magnetic Relaxation in Tetranuclear
Dy
III
2
Zn
II
2
Single Molecule Magnet. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gao‐Peng Li
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials of the Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University Taiyuan 030031 P.R. China
| | - Hong‐Fang Xie
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials of the Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University Taiyuan 030031 P.R. China
| | - Shi‐Rui Yang
- Weinan Bureau of Natural Resources and Planning Weinan 714000 P.R. China
| | - Yun‐Long Fu
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials of the Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University Taiyuan 030031 P.R. China
| | - Yi‐Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University Nanjing 210023 P.R. China
| | - Yao‐Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Shaanxi Key Laboratory of Physico‐Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 P. R. China
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8
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Ahmed N, Uddin Ansari K. Experimental and theoretical insights into Co-Ln magnetic exchange and the rare slow-magnetic relaxation behavior of [CoII2Pr] 2+ in a series of linear [CoII2Ln] 2+ complexes. Dalton Trans 2022; 51:4122-4134. [PMID: 35188157 DOI: 10.1039/d1dt03573h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein report a series of near-linear trinuclear complexes [Co2Ln(HL)4(NO3)](NO3)2 (where HL = (2-methoxy-6-[(E)-2'-hydroxymethyl-phenyliminomethyl]-phenolate) with Ln(III) = La (1), Ce (2), Pr (3)). For the comparative study, we have also included the recently reported analogous complexes of Gd(III), Tb(III), and Dy(III) (complexes 4-6) with the same H2L ligand. The experimental nature of the dc magnetic susceptibilities profile and an empirical approach revealed that the magnetic exchange interaction between Co(II) and Ln(III) having <4f7 (complexes 2 and 3) is antiferromagnetic while the dominant interaction between Co(II) and Ln(III) having ≥4f7 (complexes 4-6) is ferromagnetic. Dynamic magnetic relaxation studies on complexes 1-3 revealed the field induced single-molecule magnetic (SMM) behavior of 1 and 3 with effective energy barriers of 10.65 K and 15.03 K respectively, for magnetic relaxation. To the best of our knowledge, 3d-Pr(III) based zero or field induced SMMs have not been reported to date. CASSCF/SO-RASSI/SINGLE_ANISO based ab initio calculations on the X-ray structures of complexes 1-6, followed by POLY_ANISO simulations, estimated the magnetic exchange coupling constants JCo-Ln and JCo-Co and also rationalized our experimental findings for the dynamic magnetic properties.
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Affiliation(s)
- Naushad Ahmed
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India.
| | - Kamal Uddin Ansari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, Maharashtra, India.
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9
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Li Z, Bu J, Zhang R, Zhang C, Wu D, Zhai B. Two temperature-dependent 2D heterometallic Cd(II)–Dy(III) coordination polymers exhibiting slow magnetic relaxation and luminescence properties. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Dais TN, Takano R, Ishida T, Plieger PG. Self-assembly of non-macrocyclic triangular Ni 3Ln clusters. Dalton Trans 2022; 51:1446-1453. [PMID: 34985086 DOI: 10.1039/d1dt03742k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and structural characterisation of four new heterometallic tetranuclear complexes is reported. Three L3Ni3Ln type complexes, where Ln = La (C1), Eu (C2), and Gd (C3), have been fully characterised including DC and AC magnetic measurements. A fourth complex featuring a diamagnetic BaII ion at its centre is also reported with structural characterisation. Structural elucidation showed that all four complexes successfully self-assembled from a stoichiometric mixture of the acyclic ligand, 1,4-diformylnaphthalene-2,3-diol, with nickel(II) nitrate and the appropriate heavy metal salt to produce the same near planar Ni3MO12 core. Ferromagnetic interactions were found to dominate the ground state of C3, exhibiting a maximal spin ground state of 13/2. The exchange coupling is quantitatively discussed along with the nickel(II) zero-field splitting effect. AC magnetic susceptibility experiments were carried out, but no frequency dependent signals were observed and thus no observable slow relaxation of magnetisation.
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Affiliation(s)
- Tyson N Dais
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
| | - Rina Takano
- Department of Engineering Science, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - Takayuki Ishida
- Department of Engineering Science, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - Paul G Plieger
- School of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
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11
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Saha S, Das KS, Sharma T, Bala S, Adhikary A, Huang GZ, Tong ML, Ghosh A, Das B, Rajaraman G, Mondal R. Synergistic Experimental and Theoretical Studies of Luminescent-Magnetic Ln 2Zn 6 Clusters. Inorg Chem 2022; 61:2141-2153. [PMID: 35049278 DOI: 10.1021/acs.inorgchem.1c03359] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The present work is part of our ongoing quest for developing functional inorganic complexes using unorthodox pyridyl-pyrazolyl-based ligands. Accordingly, we report herein the synthesis, characterization, and luminescence and magnetic properties of four 3d-4f mixed-metal complexes with a general core of Ln2Zn6 (Ln = Dy, Gd, Tb, and Eu). In stark contrast to the popular wisdom of using a compartmental ligand with separate islands of hard and soft coordinating sites for selective coordination, we have vindicated our approach of using a ligand with overcrowded N-coordinating sites that show equal efficiency with both 4f and 3d metals toward multinuclear cage-cluster formation. The encouraging red and green photolumiscent features of noncytotoxic Eu2Zn6 and Tb2Zn6 complexes along with their existence in nanoscale dimension have been exploited with live-cell confocal microscopy imaging of human breast adenocarcinoma (MCF7) cells. The magnetic features of the Dy2Zn6 complex confirm the single-molecule-magnet behavior with befitting frequency- and temperature-dependent out-of-phase signals along with an Ueff value of ∼5 K and a relaxation time of 8.52 × 10-6 s. The Gd2Zn6 complex, on the other hand, shows cryogenic magnetic refrigeration with an entropy change of 11.25 J kg-1 K-1 at a magnetic field of 7 T and at 2 K. Another important aspect of this work reflects the excellent agreement between the experimental results and theoretical calculations. The theoretical studies carried out using the broken-symmetry density functional theory, ORCA suite of programs, and MOLCAS calculations using the complete-active-space self-consistent-field method show an excellent synergism with the experimentally measured magnetic and spectroscopic data.
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Affiliation(s)
- Sayan Saha
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Krishna Sundar Das
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Tanu Sharma
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Sukhen Bala
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Amit Adhikary
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Arjit Ghosh
- School of Biological Science Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Benubrata Das
- School of Biological Science Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Raju Mondal
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
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12
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Shen L, Hu P, Yang XJ, Xu H, Huang YL, Redshaw C, Zhang QL. Structural and magnetic characterization of tetranuclear [Ni(II)2Ln(III)2] complexes bearing tetra-branched Schiff base ligands. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Mecchia Ortiz JH, Cabrosi D, Cruz C, Paredes-García V, Alborés P. Synthesis, structural characterization, and magnetic property study of {Cr 3Ln 3}, Ln = Gd and Dy complexes. Dalton Trans 2021; 51:624-637. [PMID: 34904980 DOI: 10.1039/d1dt03176g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have successfully prepared and structurally characterized triangle-in-triangle {Cr3Ln3} complexes with Ln = Gd and Dy employing alcohol-amine, N-methyldiethanolamine (H2mdea) and pivalate ligands. These complexes and the Yttrium analogue proved to be isostructural and crystallized in a P1 triclinic cell. DC and AC magnetic measurements were carried out and supported by quantum computations at DFT and CASSCF levels. DC magnetic data are dominated by the Cr(III)-Ln(III) antiferromagnetic interaction and by single-ion anisotropy in the case of the Dy(III) complex. Ln(III)-Ln(III) magnetic interactions are negligible, as well as Cr(III)-Cr(III) ones. From AC data, slow relaxation of the magnetization is observed at 0 DC applied magnetic field in the case of the Dy(III) complex below 4 K. From temperature and field dependence data, possible Raman and Orbach relaxation mechanisms are established in the absence of quantum tunnelling pathways, suggesting a successful suppression of the latter due to the Cr(III)-Dy(III) exchange interaction.
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Affiliation(s)
- Juan H Mecchia Ortiz
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Daiana Cabrosi
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
| | - Carlos Cruz
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 275, Santiago de Chile, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, Santiago, Chile
| | - Verónica Paredes-García
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Avenida República 275, Santiago de Chile, Chile.,Centro para el Desarrollo de la Nanociencia y Nanotecnología, CEDENNA, Santiago, Chile
| | - Pablo Alborés
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE (CONICET), Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina.
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14
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Li D, Li Y, Tello Yepes DF, Zhang X, Li Y, Yao JL. Hexanuclear Co 4 Dy 2 , Zn 4 Dy 2 , and Co 4 Y 2 Complexes with Defect Tetracubane Cores: Syntheses, Structures, and Magnetic Properties. Chem Asian J 2021; 16:2545-2551. [PMID: 34297468 DOI: 10.1002/asia.202100571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/11/2021] [Indexed: 11/09/2022]
Abstract
A hexanuclear heterometallic cluster of composition [Dy2 Co4 (L)4 (NO3 )2 (OH)4 (C2 H5 OH)2 ] ⋅ 2 C2 H5 OH (1) was synthesized by employing a Schiff base 2-(((2-hydroxy-3-methoxybenzyl) imino)methyl)-4-methoxyphenol (H2 L) as ligand and utilizing Dy(NO3 )3 ⋅ 6H2 O and Co(NO3 )2 ⋅ 6H2 O as metal ion sources. X-ray single-crystal diffraction analysis indicated that complex 1 contains a defect tetracubane core and possesses central symmetric structure, with two DyIII ions being in the central body position of the molecule and four CoII ions being arranged at the outer sites. Magnetic studies reveal that complex 1 behaves as single-molecule magnet (SMM) with energy barrier of 27.50 K. To investigate the individual contribution of DyIII and CoII ions to the SMM behavior, another two complexes of formulae [Dy2 Zn4 (L)4 (NO3 )2 (OH)4 ] ⋅ 4CH3 OH (2) and [Y2 Co4 (L)4 (NO3 )2 (OH)4 (C2 H5 OH)2 ] ⋅ 2 C2 H5 OH (3) were prepared. Complexes 1 and 3 are isomorphous. The coordination geometries of DyIII ions in 1 and 2 are different. The DyIII ions are eight-coordinated in 2 and nine-coordinated in 1. Complex 2 exhibits SMM behavior with energy barrier of 69.67 K, but complex 3 does not display SMM property. These results reveal that the SMM behaviors of 1 and 2 are mainly originated from DyIII ions. It might be the higher symmetry of DyIII ions in 2 that results in the higher energy barrier.
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Affiliation(s)
- Dawei Li
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou, 215123, P. R. China
| | - Yafei Li
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou, 215123, P. R. China
| | | | - Xiamei Zhang
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou, 215123, P. R. China
| | - Yahong Li
- College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou, 215123, P. R. China
| | - Jin-Lei Yao
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
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15
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16
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Kharwar AK, Mondal A, Sarkar A, Rajaraman G, Konar S. Modulation of Magnetic Anisotropy and Exchange Interaction in Phenoxide-Bridged Dinuclear Co(II) Complexes. Inorg Chem 2021; 60:11948-11956. [PMID: 34314144 DOI: 10.1021/acs.inorgchem.1c00956] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a new class of four dimeric Co(II) complexes [Co2(bbpen)(X)2] (H2bbpen = N,N'-bis(2-hydroxybenzyl)-N,N'-bis(2-methylpyridyl)ethylenediamine) [X- = SCN (1), Cl (2), Br (3), and I (4)] with different coordination geometry of two Co(II) centers (trigonal-prismatic and pseudo-tetrahedral) and their magnetic study. Interestingly, the two Co(II) centers show two different types of magnetic anisotropy. State of the art ab initio CASSCF analysis reveals that the six-coordinate or the trigonal-prismatic Co(II) center possesses a consistently large negative axial zero-field splitting (negative D) parameter (∼-60 cm-1), while the four-coordinate or the pseudo-tetrahedral Co(II) center exhibits a range of D values from +13 to -23 cm-1. Ab initio calculations employing the lines model were used to estimate the magnetic exchange as both the Co(II) centers possess significant magnetic anisotropy. All the complexes display rare ferromagnetic interaction, and the strength of this interaction decreases as the ligand field on the pseudo-tetrahedral Co(II) center decreases from SCN- > Cl- > Br- > I-.
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Affiliation(s)
- Ajit Kumar Kharwar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, Bypass Road, Bhauri, Bhopal 462066, India
| | - Arpan Mondal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, Bypass Road, Bhauri, Bhopal 462066, India
| | - Arup Sarkar
- 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
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, Bypass Road, Bhauri, Bhopal 462066, India
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17
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Biswas M, Sañudo EC, Ray D. Carboxylate-Decorated Aggregation of Octanuclear Co 4Ln 4 (Ln = Dy, Ho, Yb) Complexes from Ligand-Controlled Hydrolysis: Synthesis, Structures, and Magnetic Properties. Inorg Chem 2021; 60:11129-11139. [PMID: 34242013 DOI: 10.1021/acs.inorgchem.1c01070] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-pot reactions of an asymmetric carboxy-ether-phenol based Schiff base H2L (2-((2-hydroxy-3-methoxybenzylidene)amino)benzoic acid) with selected Ln(NO3)3·nH2O and [Co2(μ-OH2)(O2CCMe3)4(HO2CCMe3)4] (Co2-Piv) in basic MeOH medium resulted in a family of three octanuclear complexes, [CoII4LnIII4L4(μ1,3-Piv)4(μ1,1,3-Piv)2(η1-Piv)2(μ3-OH)4(MeOH)2]·mMeOH·nH2O (Ln = Dy; m = 3, n = 1 (1), Ho; m = 4, n = 0 (2), Yb; m = 3, n = 1 (3)). The coordination aggregates thus obtained were nicely sustained by four ligand anions and eight externally added carboxylate anions showing three different modes of intermetallic connectivity. The options for incorporating different 4f ions in an investigative synthesis, without altering the resulting intermetallic core structure, were successful for the three representative examples. Single-crystal X-ray diffraction studies revealed that the compounds are isostructural and built from two initially formed partial dicubane-type Co2Ln2L2 units. In each of the tetranuclear parts, the metal ion centers are held together by two L2-, two μ3-HO-, three Piv- bridges, one terminal Piv-, and one terminal MeOH. Four carboxylate ends of four L2- units are responsible for connecting two Co2Ln2 units into octanuclear structures. The unique distortion around the CoII centers is achieved from the facile coordination of bigger 4f ions to the adjacent hard OO sites. The distortion is further maintained by the presence of terminal COO- groups from L2-. The dc magnetic susceptibility data revealed ferromagnetic coupling between the CoII and LnIII centers within the series, whereas the ac magnetic susceptibility measurements identified only 1, having a highly anisotropic DyIII ion, as a single-molecule magnet in the absence of any external magnetic field, with an energy barrier Ueff of 12.5 K.
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Affiliation(s)
- Mousumi Biswas
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - E Carolina Sañudo
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.,Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, (IN2UB) 08028 Barcelona, Spain
| | - Debashis Ray
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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18
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19
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Mondal A, Raizada M, Sahu PK, Konar S. A new family of Fe 4Ln 4 (Ln = Dy III, Gd III, Y III) wheel type complexes with ferromagnetic interaction, magnetocaloric effect and zero-field SMM behavior. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00781e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Observation of ferromagnetic interactions and single molecule toroic (SMT) behavior in Fe4Ln4 wheel complexes.
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Affiliation(s)
- Arpan Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-462066, MP, India
| | - Mukul Raizada
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-462066, MP, India
| | - Pradip Kumar Sahu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-462066, MP, India
| | - Sanjit Konar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal-462066, MP, India
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20
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Zhang XN, Hu JJ, Zhang JL, Liu SJ, Liao JS, Wen HR. Multifunctional Zn II–Ln III (Ln = Tb, Dy) complexes based on the amine-phenol ligand with field-induced slow magnetic relaxation, luminescence, and proton conduction. NEW J CHEM 2021. [DOI: 10.1039/d0nj04926c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new isomorphic ZnII–LnIII–ZnII trinuclear complexes based on the amine-phenol ligand have been prepared.
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Affiliation(s)
- Xiao-Nuan Zhang
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jun-Jie Hu
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jia-Li Zhang
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jin-Sheng Liao
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
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21
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Bag R, Sikdar Y, Saha P, Ghosh P, Drew MGB, Tang J, Goswami S. Enhancement of the coordinating flexibility in a Schiff–Mannich combo ligand: forced generation of a new Ni II–O phenoxo–Ln III–O alkoxo–Ln III array (Ln = Gd, Tb, Dy and Ho). NEW J CHEM 2021. [DOI: 10.1039/d0nj05812b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A series of 3d–4f complexes, containing rare NiLn2O4 topology, were synthesized by designing a new type of combo Schiff base–Mannich ligand.
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Affiliation(s)
- Riya Bag
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Yeasin Sikdar
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Pinaki Saha
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Prasanta Ghosh
- Department of Chemistry
- R. K. Mission Residential College
- Kolkata-700103
- India
| | | | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Sanchita Goswami
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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22
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Wang Y, Yuan Z, Ren H, Xu W, Xu J, Zhang H, Sha J, Zhang H. Structures and magnetic properties of two hexanuclear [Co2Ln4]complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Yang P, Yu S, Quan L, Hu H, Liu D, Liang Y, Li B, Liang F, Chen Z. Structure and Magnetic Properties of Two Discrete 3d‐4f Heterometallic Complexes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002611] [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]
Affiliation(s)
- Panpan Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
| | - Shui Yu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
| | - Lixia Quan
- School of chemistry and Environmental Sciences Shangrao Normal University Shangrao 334001 P. R. China
| | - Huancheng Hu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
| | - Dongcheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
| | - Yuning Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
| | - Bo Li
- College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang 473061 P. R. China
| | - Fupei Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials College of Chemistry and Bioengineering, Guilin University of Technology Guilin 541004 P. R. China
| | - Zilu Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences Guangxi Normal University Guilin 541004 P. R. China
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24
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Fatima T, Imtiaz-ud-Din, Rauf MK, Anwar MS, Raheel A, Tahir MN, Ashfaq M. Synthesis, characterization and magnetic studies for a series of compounds having a trinuclear bimetallic Cu2(II)/Ln(III) system. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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25
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Wang Y, Du C, Zhao L, Zhang X, Wang D, Sha J, Zhang H. Two hexanuclear [Co2III-Ln4III] clusters including a [Co2III-Dy4III] single molecule magnet. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Aldoshin SM, Antipin IS, Kniazeva MV, Korchagin DV, Morgunov RB, Ovsyannikov AS, Palii AV, Sanina NA, Shilov GV, Solovieva SE. Synthesis, Structure and Magnetic Properties of Mn
2
Tb
2
Tetranuclear Complex with p‐tert‐Butylthiacalix[4]arene. Isr J Chem 2020. [DOI: 10.1002/ijch.201900155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sergey M. Aldoshin
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
| | - Igor S. Antipin
- Kazan Federal University 18, Kremlevskaya st. Kazan Russian Federation 420008
| | - Mariya V. Kniazeva
- Kazan Federal University 18, Kremlevskaya st. Kazan Russian Federation 420008
| | - Denis V. Korchagin
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
| | - Roman B. Morgunov
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
| | | | - Andrey V. Palii
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
- Institute of Applied PhysicsAcademy of Sciences of Moldova Kishinev Moldova
| | - Nataliya A. Sanina
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
| | - Gennadiy V. Shilov
- Institute of Problems of Chemical PhysicsRussian Academy of Sciences 1, Acad. Semenov Av. Chernogolovka Russian Federation 142432
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27
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Wu SG, Zhan CY, Huang GZ, Ruan ZY, Liu JL, Tong ML. Slow magnetic dynamics in centrosymmetric didysprosium and equilateral triangular tridysprosium molecules. Dalton Trans 2020; 49:4164-4171. [DOI: 10.1039/d0dt00481b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Slow magnetic dynamics were investigated in centrosymmetric didysprosium and equilateral triangular tridysprosium molecules.
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Affiliation(s)
- Si-Guo Wu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Chang-Ye Zhan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Ze-Yu Ruan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Jun-Liang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
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28
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Wang HS, Chen Y, Hu ZB, Zhang K, Zhang Z, Song Y, Pan ZQ. Modulating the structural topologies and magnetic relaxation behaviour of the Mn–Dy compounds by using different auxiliary organic ligands. NEW J CHEM 2020. [DOI: 10.1039/d0nj03838e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A MnIII4DyIII complex and a one-dimensional chain containing MnIII2DyIII units have been obtained by using different combinations of organic ligands, and a slow magnetic relaxation behavior was observed for both complexes.
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Affiliation(s)
- Hui-Sheng Wang
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
- Wuhan Institute of Technology
- Wuhan 430074
| | - Yong Chen
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
- Wuhan Institute of Technology
- Wuhan 430074
| | - Zhao-Bo Hu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210046
| | - Ke Zhang
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
- Wuhan Institute of Technology
- Wuhan 430074
| | - Zaichao Zhang
- Jiangsu Key Laboratory for the Chemistry of Low-dimensional Materials
- College of Chemistry and Chemical Engineering
- Huaiyin Normal University
- Huai’an 223300
- P. R. China
| | - You Song
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210046
| | - Zhi-Quan Pan
- School of Chemistry and Environmental Engineering
- Key Laboratory of Green Chemical Process of Ministry of Education
- Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province
- Wuhan Institute of Technology
- Wuhan 430074
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29
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Fan XT, Yang H, Li DC, Tian HQ, Cao F, Dou JM. Three new heterometallic ZnII–LnIII complexes with a windmill-like framework and field-induced SMM behavior. NEW J CHEM 2020. [DOI: 10.1039/c9nj05796j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have prepared three 3d–4f heterometallic complexes by the reaction of o-vanillin oxime (H2L) with Zn(NO3)2·6H2O and Ln(NO3)3·6H2O salts in the presence of triethylamine.
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Affiliation(s)
- Xiao-Tian Fan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Hua Yang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Da-Cheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Hai-Quan Tian
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
| | - Fan Cao
- School of Materials Science and Engineering
- Shandong Jianzhu University
- 250101 Jinan
- P. R. China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology
- School of Chemistry and Chemical Engineering
- Liaocheng University
- 252059 Liaocheng
- P. R. China
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30
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Xi L, Sun J, Wang K, Lu J, Jing P, Li L. Slow magnetic relaxation in CoII–LnIII heterodinuclear complexes achieved through a functionalized nitronyl nitroxide biradical. Dalton Trans 2020; 49:1089-1096. [DOI: 10.1039/c9dt04036f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five nitronyl nitroxide biradical-CoII–LnIII heterodinuclear complexes were achieved and the DyCo derivative displayed visible temperature/frequency-dependent χ′′ peaks, indicating the SMM behavior.
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Affiliation(s)
- Lu Xi
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Juan Sun
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Kang Wang
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Jiao Lu
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Pei Jing
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Licun Li
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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31
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Meseguer C, Palacios MA, Mota AJ, Drahoš B, Brechin EK, Navarrete R, Moreno JM, Colacio E. Effect of π-aromatic spacers on the magnetic properties and slow relaxation of double stranded metallacyclophanes with a LnIII–MII–MII–LnIII (LnIII = GdIII, DyIII, YIII; MII = NiII, CoII) linear topology. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Ge JY, Chen Z, Qiu YR, Huo D, Zhang YQ, Wang P, Zuo JL. Modulating Magnetic Property of Phthalocyanine Supported MII–DyIII (M = Ni, Zn) Heterodinuclear Complexes. Inorg Chem 2019; 58:9387-9396. [DOI: 10.1021/acs.inorgchem.9b01179] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jing-Yuan Ge
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Zhongyan Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Ya-Ru Qiu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
| | - Dexuan Huo
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, P. R. China
| | - Yi-Quan Zhang
- Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Peng Wang
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China
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33
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A Novel Family of Triangular CoII2LnIII and CoII2YIII Clusters by the Employment of Di-2-Pyridyl Ketone. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5020035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The synthesis, structural characterization and magnetic study of novel CoII/4f and CoII/YIII clusters are described. In particular, the initial employment of di-2-pyridyl ketone, (py)2CO, in mixed metal Co/4f chemistry, provided access to four triangular clusters, [CoII2MIII{(py)2C(OEt)(O)}4(NO3)(H2O)]2[M(NO3)5](ClO4)2 (M = Gd, 1; Dy, 2; Tb, 3; Y, 4), where (py)2C(OEt)(O)− is the monoanion of the hemiketal form of (py)2CO. Clusters 1–4 are the first reported Co/4f (1–3) and Co/Y (4) species bearing (py)2CO or its derivatives, despite the fact that over 200 metal clusters bearing this ligand have been reported so far. Variable-temperature, solid-state dc and ac magnetic susceptibility studies were carried out on 1–4 and revealed the presence of weak ferromagnetic exchange interactions between the metal ions (JCo-Co = +1.3 and +0.40 cm−1 in 1 and 4, respectively; JCo-Gd = +0.09 cm−1 in 1). The ac susceptibility studies on 2 revealed nonzero, weak out-of-phase (χ’’M) signals below ~5 K.
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34
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Nie Q, Qian J, Zhang C. Solvothermal synthesis, structure and properties of heterometallic coordination polymer based on metalloligand and alkaline-earth metal calcium. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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35
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First transition metal complex containing SMIA− carboxylate ligand: Synthesis, structure and magnetic properties of a new tetranuclear copper complex [Cu4(SMIA)6(phen)4](ClO4)2. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Syntheses, structures, photoluminescent and magnetic properties of pyrazine-2,3-dicarboxylate-based cadmium-lanthanide/lanthanide coordination polymers tuned by CdII. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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37
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Chakraborty A, Goura J, Bag P, Chandrasekhar V. Ni
II
‐Ln
III
Heterometallic Complexes as Single‐Molecule Magnets. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801428] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Amit Chakraborty
- Tata Institute of Fundamental Research Hyderabad Gopanpally 500107 Hyderabad India
| | - Joydeb Goura
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Prasenjit Bag
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad Gopanpally 500107 Hyderabad India
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
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38
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Mahapatra P, Koizumi N, Kanetomo T, Ishida T, Ghosh A. A series of CuII–LnIII complexes of an N2O3 donor asymmetric ligand and a possible CuII–TbIII SMM candidate in no bias field. NEW J CHEM 2019. [DOI: 10.1039/c8nj03512a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Among four isostructural heterometallic CuII–LnIII complexes (Ln = Tb, Dy, Ho or Er) of an N2O3 donor asymmetric ligand, only the CuII–TbIII complex shows SMM behavior at zero bias field but at applied bias field both the CuII–TbIII and CuII–DyIII complexes show SMM behavior.
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Affiliation(s)
- Prithwish Mahapatra
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
| | - Naoki Koizumi
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Takuya Kanetomo
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Takayuki Ishida
- Department of Engineering Science
- The University of Electro-Communications
- Tokyo
- Japan
| | - Ashutosh Ghosh
- Department of Chemistry
- University College of Science
- University of Calcutta
- Kolkata 700009
- India
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39
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Hou S, Tang XY, Li Y, Wang RX, Chen FF, Wang Y, Chi YX, Jin J. Syntheses, crystal structures and photophysical properties of a series of Zn-Ln coordination polymers. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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40
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Das C, Upadhyay A, Shanmugam M. Influence of Radicals on Magnetization Relaxation Dynamics of Pseudo-Octahedral Lanthanide Iminopyridyl Complexes. Inorg Chem 2018; 57:9002-9011. [DOI: 10.1021/acs.inorgchem.8b00979] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chinmoy Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Apoorva Upadhyay
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Maheswaran Shanmugam
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
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41
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Peng Y, Mereacre V, Anson CE, Powell AK. Butterfly M 2 IIIEr 2 (M III = Fe and Al) SMMs: Synthesis, Characterization, and Magnetic Properties. ACS OMEGA 2018; 3:6360-6368. [PMID: 31458819 PMCID: PMC6644375 DOI: 10.1021/acsomega.8b00550] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/27/2018] [Indexed: 06/10/2023]
Abstract
The reaction of N-(2-pyridylmethyl)iminodiethanol (H2L, pmide), FeCl2·4H2O or AlCl3·6H2O with ErCl3·6H2O and p-Me-PhCO2H in the ratio of 2:1:1:4 in the presence of Et3N in MeOH and MeCN yielded compounds [Fe2Er2(μ3-OH)2(pmide)2(p-Me-PhCO2)6]·2MeCN (1) and [Al2Er2(μ3-OH)2(pmide)2(p-Me-PhCO2)6]·2MeCN (2). These two complexes are isostructural, possessing a planar butterfly motif with the ErIII ions in the wingtip positions. Both compounds show single molecule magnet (SMM) behavior. For the [Al2Er2] compound, the slow relaxation of the magnetization under zero applied direct current (dc) field does not show maxima, but the relaxation processes could be analyzed using an applied dc field of 1000 Oe. In-depth alternating current measurements under different dc fields on the [Fe2Er2] compound reveals that the Fe-Fe and Fe-Er interactions speed up the relaxation and decrease the energy barrier height of the SMM in comparison with the [Al2Er2] case.
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Affiliation(s)
- Yan Peng
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Postfach
3640, 76021 Karlsruhe, Germany
| | - Valeriu Mereacre
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Christopher E. Anson
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
| | - Annie K. Powell
- Institute
of Inorganic Chemistry, Karlsruhe Institute
of Technology, Engesserstrasse
15, 76131 Karlsruhe, Germany
- Institute
of Nanotechnology, Karlsruhe Institute of
Technology, Postfach
3640, 76021 Karlsruhe, Germany
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42
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Dey B, Roy S, Mondal AK, Santra A, Konar S. Zero Field SMM Behavior and Magnetic Refrigeration in Rare Heterometallic Double Stranded Helicates of Cu2
Ln2
(Ln = Dy, Tb, Gd). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bijoy Dey
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Subhadip Roy
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Amit Kumar Mondal
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Atanu Santra
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
| | - Sanjit Konar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal by-pass road 462066 Bhauri, Bhopal MP India
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43
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Hänninen MM, Mota AJ, Sillanpää R, Dey S, Velmurugan G, Rajaraman G, Colacio E. Magneto-Structural Properties and Theoretical Studies of a Family of Simple Heterodinuclear Phenoxide/Alkoxide Bridged MnIIILnIII Complexes: On the Nature of the Magnetic Exchange and Magnetic Anisotropy. Inorg Chem 2018; 57:3683-3698. [DOI: 10.1021/acs.inorgchem.7b02917] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mikko M. Hänninen
- Department of Chemistry, University of Jyväskylä, P.O. Box
35, FIN-40014 Jyväskylä, Finland
| | - Antonio J. Mota
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avda. de Fuentenueva s/n, 18071 Granada, Spain
| | - Reijo Sillanpää
- Department of Chemistry, University of Jyväskylä, P.O. Box
35, FIN-40014 Jyväskylä, Finland
| | - Sourav Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Gunasekaran Velmurugan
- 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
| | - Enrique Colacio
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, Avda. de Fuentenueva s/n, 18071 Granada, Spain
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44
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Majee MC, Towsif Abtab SM, Mondal D, Maity M, Weselski M, Witwicki M, Bieńko A, Antkowiak M, Kamieniarz G, Chaudhury M. Synthesis and magneto-structural studies on a new family of carbonato bridged 3d–4f complexes featuring a [CoII3LnIII3(CO3)] (Ln = La, Gd, Tb, Dy and Ho) core: slow magnetic relaxation displayed by the cobalt(ii)–dysprosium(iii) analogue. Dalton Trans 2018; 47:3425-3439. [DOI: 10.1039/c7dt04389a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of carbonato-bridged complexes containing a CoII3LnIII3 core have been synthesized.
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Affiliation(s)
- Mithun Chandra Majee
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Sk Md Towsif Abtab
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Dhrubajyoti Mondal
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Manoranjan Maity
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
| | - Marek Weselski
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | - Maciej Witwicki
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | - Alina Bieńko
- Faculty of Chemistry
- University of Wroclaw
- 50-383 Wroclaw
- Poland
| | - Michał Antkowiak
- Faculty of Physics
- A. Mickiewicz University
- PL-61-614 Poznań
- Poland
| | | | - Muktimoy Chaudhury
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700 032
- India
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45
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Mannich Base Ligands as Versatile Platforms for SMMs. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Cobalt(II)/(III)–Lanthanide(III) Complexes as Molecular Magnets. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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47
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Heterometallic Heptanuclear [Cu 5Ln 2] (Ln = Tb, Dy, and Ho) Single-Molecule Magnets Organized in One-Dimensional Coordination Polymeric Network. Inorg Chem 2017; 56:14612-14623. [PMID: 29160702 DOI: 10.1021/acs.inorgchem.7b02450] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The reaction of a multisite coordination ligand, LH3, with Cu(II) salts and Ln(NO3)3·nH2O in a 1:2:1 stoichiometric ratio in the presence of triethylamine was found to afford a series of one-dimensional heterometallic [{Cu5Ln2(L)2(μ3-OH)4(ClO4)(NO3)3(OH2)5}(ClO4)2(H2O)x]∞ [Ln = Tb(1), Dy(2) and Ho(3), x = 4.25, 5.5, and 5 for 1-3, respectively] coordination polymers. Complexes 1-3 have been characterized by single crystal X-ray crystallography. The detailed study of the magnetic properties has also been performed and compared with the parent [Cu5Ln2] molecular analogues. The ac susceptibility measurements for complexes 1-3 confirm their SMM behavior with the following characteristics: Δeff/kB = 23.4 K, τ0 = 1.1 × 10-6 s and Δeff/kB = 27.9 K, τ0 = 6.6 × 10-7 s under 0 and 1200 Oe dc fields, respectively for 1; Δeff/kB = 8.3 K, τ0 = 3.1 × 10-6 s for 2 under 0 dc field. For 3, the fast QTM below 4 K prevents the estimation of the SMM energy barrier. Remarkably, the magnetic and SMM properties of the previously reported molecular [Cu5Ln2] analogues are preserved after their assembly in these coordination networks.
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48
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Wu H, Li M, Zhang S, Ke H, Zhang Y, Zhuang G, Wang W, Wei Q, Xie G, Chen S. Magnetic Interaction Affecting the Zero-Field Single-Molecule Magnet Behaviors in Isomorphic {NiII2DyIII2} and {CoII2DyIII2} Tetranuclear Complexes. Inorg Chem 2017; 56:11387-11397. [DOI: 10.1021/acs.inorgchem.7b01840] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Haipeng Wu
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Min Li
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Sheng Zhang
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Hongshan Ke
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Yiquan Zhang
- Jiangsu Key Laboratory for NSLSCS, School
of Physical Science and Technology, Nanjing Normal University, Nanjing 210097, China
| | - Guilin Zhuang
- College
of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Wenyuan Wang
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Qing Wei
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Gang Xie
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Sanping Chen
- Key Laboratory of
Synthetic and Natural Functional Molecule Chemistry of Ministry of
Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
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49
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Chen CH, Krylov DS, Avdoshenko S, Liu F, Spree L, Yadav R, Alvertis A, Hozoi L, Nenkov K, Kostanyan A, Greber T, Wolter AUB, Popov AA. Selective arc-discharge synthesis of Dy 2S-clusterfullerenes and their isomer-dependent single molecule magnetism. Chem Sci 2017; 8:6451-6465. [PMID: 29263779 PMCID: PMC5734629 DOI: 10.1039/c7sc02395b] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 06/29/2017] [Indexed: 01/04/2023] Open
Abstract
A method for the selective synthesis of sulfide clusterfullerenes Dy2S@C2n is developed. Addition of methane to the reactive atmosphere reduces the formation of empty fullerenes in the arc-discharge synthesis, whereas the use of Dy2S3 as a source of metal and sulfur affords sulfide clusterfullerenes as the main fullerene products along with smaller amounts of carbide clusterfullerenes. Two isomers of Dy2S@C82 with Cs(6) and C3v(8) cage symmetry, Dy2S@C72-Cs(10528), and a carbide clusterfullerene Dy2C2@C82-Cs(6) were isolated. The molecular structure of both Dy2S@C82 isomers was elucidated by single-crystal X-ray diffraction. SQUID magnetometry demonstrates that all of these clusterfullerenes exhibit hysteresis of magnetization, with Dy2S@C82-C3v(8) being the strongest single molecule magnet in the series. DC- and AC-susceptibility measurements were used to determine magnetization relaxation times in the temperature range from 1.6 K to 70 K. Unprecedented magnetization relaxation dynamics with three consequent Orbach processes and energy barriers of 10.5, 48, and 1232 K are determined for Dy2S@C82-C3v(8). Dy2S@C82-Cs(6) exhibits faster relaxation of magnetization with two barriers of 15.2 and 523 K. Ab initio calculations were used to interpret experimental data and compare the Dy-sulfide clusterfullerenes to other Dy-clusterfullerenes. The smallest and largest barriers are ascribed to the exchange/dipolar barrier and relaxation via crystal-field states, respectively, whereas an intermediate energy barrier of 48 K in Dy2S@C82-C3v(8) is assigned to the local phonon mode, corresponding to the librational motion of the Dy2S cluster inside the carbon cage.
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Affiliation(s)
- Chia-Hsiang Chen
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Denis S. Krylov
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Stanislav M. Avdoshenko
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Lukas Spree
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Ravi Yadav
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Antonis Alvertis
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Liviu Hozoi
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Konstantin Nenkov
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Aram Kostanyan
- Physik-Institut , Universität Zürich , Zürich , Switzerland
| | - Thomas Greber
- Physik-Institut , Universität Zürich , Zürich , Switzerland
| | - Anja U. B. Wolter
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
| | - Alexey A. Popov
- Leibniz Institute for Solid State and Materials Research Dresden , 01069 Dresden , Germany .
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50
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Wu J, Cador O, Li XL, Zhao L, Le Guennic B, Tang J. Axial Ligand Field in D 4d Coordination Symmetry: Magnetic Relaxation of Dy SMMs Perturbed by Counteranions. Inorg Chem 2017; 56:11211-11219. [PMID: 28853556 DOI: 10.1021/acs.inorgchem.7b01582] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A series of mononuclear DyIII complexes with the general formula [DyLz2(salicylaldehyde)2]·X·solvent (Lz = 6-pyridin-2-yl[1,3,5]triazine-2,4-diamine; X = OH- (1·OH), Cl- (2·Cl), Br- (3·Br)) have been synthesized using mixed salicylaldehyde/pyridinyl-triazine ligands and discriminative counteranions. The DyIII ion in these three complexes resides in a similar D4d coordination geometry with counteranions perturbing the coordination environment and bond lengths and angles in the lattice. Magnetostructural studies reveal that the asymmetric distribution of salicylaldehyde/pyridinyl-triazine ligands and the presence of discriminative counteranions result in the coexistence of large anisotropy and quantum tunneling of magnetization. The magnetic anisotropy is dominated by the axial ligand field with short Dy-Osali distances and large ∠Osali-Dy-Osali angles, while the quantum tunneling relaxation is probably dictated by the π-π stacking of the Lz ligands, which induces an axial constriction of the coordinating plane. Ab initio calculations substantiate the diversity of the magnetic behaviors in these complexes and highlight the importance of axial ligand field with short Dy-Osali distances, large ∠Osali-Dy-Osali angles and less ligand stacking in these pseudo-D4d-symmetrical single-molecule magnets.
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Affiliation(s)
- Jianfeng Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263 Avenue du General Leclerc, 35042 Rennes Cedex, France
| | - Xiao-Lei Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Lang Zhao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1 , 263 Avenue du General Leclerc, 35042 Rennes Cedex, France
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
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