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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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Three hetero-tri-spin Ln2CuNIT complexes based on a 1-methyl-3-pyrazole nitronyl nitroxide radical: Syntheses, structures and magnetic properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Briganti M, Totti F, Andruh M. Hetero-tri-spin systems: an alternative stairway to the single molecule magnet heaven? Dalton Trans 2021; 50:15961-15972. [PMID: 34647933 DOI: 10.1039/d1dt02511b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The search for molecule-based magnetic materials has stimulated over the years the development of extremely rich coordination chemistry. Various combinations of spin carriers have been investigated and illustrated by a plethora of hetero-spin complexes: 3d-nd, 3d-4f, 2p-3d, and 2p-4f. More recently, two other classes of hetero-spin complexes have grown rapidly: compounds containing three different paramagnetic metal ions, or one radical and two different paramagnetic metal ions (all within the same molecular entity). Such new classes of systems represent a challenge both from a synthetic and theoretical point of view. Indeed, the synthetic control and the understanding of the spin topology effect on the overall magnetic behavior from first-principles is a difficult problem to be solved. The presence of different spin carriers in a single molecule makes such compounds particularly interesting because they offer the possibility of developing new magnetic properties, different from those of hetero-bi-spin or homo-spin systems. A critical overview taking the case of 2p-3d-4f complexes is the focus of this perspective paper. An original organic picture of the state-of-art in this field and new hints about the main directions that should be pursued to achieve hetero-tri-spin systems with large anisotropy barriers, low quantum tunneling of magnetization and, possibly, large blocking temperatures are provided in this article through an analysis based on numerically revisiting already published data and a critical survey of the literature reported so far. The reasons for the limited success obtained for the largely used 3d-2p-4f topology are given along with the ones explaining the failure for the 2p-4f-3d case. The still never synthesized linear 2p-3d-4f spin topology seemed to be the most promising one based on the results obtained for the unique closed hetero-tri-spin closed triangular system synthesized so far.
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Affiliation(s)
- Matteo Briganti
- Department of Chemistry "U. Schiff" and INSTM UdR Firenze, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy.
| | - Federico Totti
- Department of Chemistry "U. Schiff" and INSTM UdR Firenze, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy.
| | - Marius Andruh
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie nr. 23, 020464 Bucharest, Romania. .,"Costin D. Nenitzescu" Institute of Organic Chemistry of the Romanian Academy, Spl. Independentei nr. 202B, Bucharest, Romania
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5
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6
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Vaz MG, Andruh M. Molecule-based magnetic materials constructed from paramagnetic organic ligands and two different metal ions. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213611] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Structure changes from radical-3d ring dimer to radical-3d-4f 1D chain with different magnetic properties. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Wang JM, Wen LM, Liu FF, Wang SP, Zhang JJ, Liu ZY. Magnetic slow relaxation of pseudo-binuclear Ln(III)-nitronyl nitroxide radical complexes involving non-covalent O⋯O interactions. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Zhong LX, Liu MY, Zhang BW, Sun YQ, Xu YY, Gao DZ. Syntheses, Crystal Structures, Visible, and Near-Infrared Luminescence Properties of 3d–4f Coordination Polymers Cu2Er2 and Eu2Ni2. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420040090] [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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10
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11
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Chen ZZ, Zhang WZ, Zhang T, Zhang Y, Dong WK. An insight into the molecular structures, theoretical calculation and catalytic activities of novel heterotrinuclear [CuII2CeIII] and heterohexanuclear [CuII4YIII2] bis(salamo)-based complexes. NEW J CHEM 2020. [DOI: 10.1039/d0nj04126b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Two heteropolynuclear complexes, [CuII2CeIII] [Cu2(L)Ce(NO3)3] and [{Cu2(L)Y(NO3)2(μ-AcO)}{Cu2(L)Y(NO3)2(μ-NO3)(CH3OH)}]·4CH3OH, were synthesized. It was found that only the [CuII2CeIII] complex showed high catecholase and benzoxazinone synthase like catalytic activity.
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Affiliation(s)
- Zhuang-Zhuang Chen
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- P. R. China
| | - Wen-Ze Zhang
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- P. R. China
| | - Ting Zhang
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- P. R. China
| | - Yang Zhang
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- P. R. China
| | - Wen-Kui Dong
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- P. R. China
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Wang JY, Shi Y, Tao DL, Yin GY, Bo QB. 2D chain layer versus 1D chain: rigid aromatic benzoate disassembling flexible alicyclic dicarboxylate-based lanthanide coordination polymers with enhanced photoluminescence and characteristic single-molecule magnet behavior. CrystEngComm 2020. [DOI: 10.1039/d0ce00583e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Used as photosensitizer and structural separator, aromatic benzoate activator was grafted on cyclopropane dicarboxylate-based lanthanide coordination polymers with efficient photoluminescence and characteristic behavior of single molecule magnet.
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Affiliation(s)
- Jia-Yin Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan250022
- PR China
| | - Yang Shi
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan250022
- PR China
| | - Dong-Liang Tao
- College of Chemistry and Material Engineering
- Fuyang Normal University
- Fuyang236037
- PR China
| | - Guo-Yin Yin
- Analytical Department
- STA Pharmaceutical US LLC
- San Diego
- USA
| | - Qi-Bing Bo
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan250022
- PR China
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13
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Patrascu AA, Briganti M, Soriano S, Calancea S, Allão Cassaro RA, Totti F, Vaz MGF, Andruh M. SMM Behavior Tuned by an Exchange Coupling LEGO Approach for Chimeric Compounds: First 2p–3d–4f Heterotrispin Complexes with Different Metal Ions Bridged by One Aminoxyl Group. Inorg Chem 2019; 58:13090-13101. [DOI: 10.1021/acs.inorgchem.9b01998] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrei A. Patrascu
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie nr. 23, 020464-Bucharest, Romania
| | - Matteo Briganti
- Department of Chemistry “Ugo Schiff” and INSTM RU University of Florence, 50019 Sesto Fiorentino, Italy
- Instituto de Química, Universidade Federal Fluminense, 24020-346-Niterói, Rio de Janeiro, Brazil
| | - Stéphane Soriano
- Instituto de Física, Universidade Federal Fluminense, 24210-346-Niterói, Rio de Janeiro, Brazil
| | - Sergiu Calancea
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie nr. 23, 020464-Bucharest, Romania
- Faculty of Chemistry and Chemical Technology, Moldova State University, MD-2009-Chisinau, Moldova
| | - Rafael A. Allão Cassaro
- Instituto de Química, Universidade Federal do Rio de Janeiro, 21941-909-Rio de Janeiro, Brazil
| | - Federico Totti
- Department of Chemistry “Ugo Schiff” and INSTM RU University of Florence, 50019 Sesto Fiorentino, Italy
| | - Maria G. F. Vaz
- Instituto de Química, Universidade Federal Fluminense, 24020-346-Niterói, Rio de Janeiro, Brazil
| | - Marius Andruh
- Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie nr. 23, 020464-Bucharest, Romania
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14
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Synthesis, structures and magnetic properties of three cyclic lanthanide complexes with nitronyl nitroxide radical. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.04.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Yoshida T, Izuogu DC, Zhang HT, Cosquer G, Abe H, Wernsdorfer W, Breedlove BK, Yamashita M. Ln-Pt electron polarization effects on the magnetic relaxation of heterometallic Ho- and Er-Pt complexes. Dalton Trans 2019; 48:7144-7149. [PMID: 30265262 DOI: 10.1039/c8dt03338b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterometallic Ln-Pt complexes, with the formula [Ln2Pt3(H2O)2(SAc)12] (Ln = Ho(1), Er(2); SAc = thioacetate), were synthesized. From natural bond orbital (NBO) and local orbital locator (LOL) analyses and X-ray absorption fine structure (XAFS) measurements, it was clear that the Ln-Pt interactions or electron polarization occurred. Butterfly-type hysteresis was observed for both 1 and 2. 1 and 2 underwent field-induced slow magnetic relaxation up to 4 K. These magnetic properties were induced by Ln-Pt electron polarization.
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Affiliation(s)
- Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - David C Izuogu
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan. and Department of Pure & Industrial Chemistry, University of Nigeria, 410001, Nsukka, Nigeria
| | - Hai-Tao Zhang
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Goulven Cosquer
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Hitoshi Abe
- Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan and Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI(the Graduate University for Advanced Studies) 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Wolfgang Wernsdorfer
- Physikalisches Institut, Karlsruher Institut für Technologie Wolfgang-Gaede-Str. 1, D-76131 Karlsruhe, Germany and CNRS and Université Grenoble Alpes, Institut Néel, 38042 Grenoble, France
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan. and WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan and School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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16
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de Souza MS, Briganti M, Reis SG, Stinghen D, Bortolot CS, Cassaro RAA, Guedes GP, da Silva FC, Ferreira VF, Novak MA, Soriano S, Totti F, Vaz MGF. Magnetic Cationic Copper(II) Chains and a Mononuclear Cobalt(II) Complex Containing [Ln(hfac) 4] - Blocks as Counterions. Inorg Chem 2019; 58:1976-1987. [PMID: 30644737 DOI: 10.1021/acs.inorgchem.8b02929] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four new heterospin compounds with molecular formula {[Cu2(hfac)3(TlTrzNIT)2][Ln(hfac)4]} n·C7H16 (LnIII = Gd (1), Tb (2), or Dy (3)) and [Co(hfac)(TlTrzNIT)2][Dy(hfac)4] (4), where hfac is hexafluoroacetylacetonato and TlTrzNIT is the nitronylnitroxide radical 1-( m-tolyl)-1 H-1,2,3-triazole-4-(4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide), were obtained. All structures were determined by single-crystal X-ray diffraction. In compounds 1-3, the TlTrzNIT radical is bridge-coordinated to copper(II) ions, leading to positively charged copper(II)-radical chains containing [Ln(hfac)4]- as counterions. In compound 4, the cobalt(II) ion is coordinated to two TlTrzNIT radicals and one hfac ligand in bidentate mode leading to a mononuclear cationic complex that contains [Dy(hfac)4]- as counterion. Magnetic measurements of all complexes were performed. Magnetic data were fit considering the contributions of the copper(II)-radical chain and a paramagnetic gadolinium(III) ion for 1. The sign and magnitude of the magnetic coupling constants extracted from the fit were confirmed by density functional theory calculations. The obtained spin topology shows an alternated ferro-antiferromagnetic chain. Field-induced single molecule magnet behavior was observed for the Dy derivatives 3 and 4, in agreement with CASSCF calculations performed for the latter system.
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Affiliation(s)
- Mateus S de Souza
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Matteo Briganti
- Department of Chemistry "Ugo Schiff" and INSTM RU University of Florence , 50019 Sesto Fiorentino , Italy
| | - Samira G Reis
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Danilo Stinghen
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Carolina S Bortolot
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Rafael A A Cassaro
- Instituto de Química , Universidade Federal do Rio de Janeiro , Rio de Janeiro , 21941-909 , Brazil
| | - Guilherme P Guedes
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Fernando C da Silva
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Vitor F Ferreira
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
| | - Miguel A Novak
- Instituto de Física , Universidade Federal do Rio de Janeiro , Rio de Janeiro , 21941-972 , Brazil
| | - Stéphane Soriano
- Instituto de Física , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-140 , Brazil
| | - Federico Totti
- Department of Chemistry "Ugo Schiff" and INSTM RU University of Florence , 50019 Sesto Fiorentino , Italy
| | - Maria G F Vaz
- Instituto de Química , Universidade Federal Fluminense , Niterói , Rio de Janeiro , 24020-150 , Brazil
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Miao H, Li M, Li HQ, Shen FX, Zhang YQ, Wang XY. Syntheses and magnetic properties of a bis-tridentate nitronyl nitroxide radical and its metal complexes. Dalton Trans 2019; 48:4774-4778. [DOI: 10.1039/c9dt00207c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new bis-tridentate nitronyl nitroxide radical was synthesized and characterized. Field-induced slow magnetic relaxation was observed in the radical-bridged CoII complex.
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Affiliation(s)
- Hao Miao
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Miao Li
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- China
| | - Hong-Qing Li
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Fu-Xing Shen
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Yi-Quan Zhang
- School of Physical Science and Technology
- Nanjing Normal University
- Nanjing 210023
- China
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
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Xie J, Li HD, Yang M, Sun J, Li LC, Sutter JP. Improved single-chain-magnet behavior in a biradical-based nitronyl nitroxide-Cu–Dy chain. Chem Commun (Camb) 2019; 55:3398-3401. [DOI: 10.1039/c9cc00570f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The first example of nitronyl nitroxide biradical bridged 3d–4f complex exhibiting single-chain magnet behavior.
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Affiliation(s)
- Jing Xie
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Hong-Dao Li
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Meng Yang
- 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
| | - Li-Cun Li
- Department of Chemistry
- Key Laboratory of Advanced Energy Materials Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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19
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Magnetic relaxation in mononuclear Tb and Dy complexes involving chelate nitronyl nitroxide ligand. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.08.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Sun J, Xi L, Xie J, Wang K, Li L, Sutter JP. A loop chain and a three-dimensional network assembled from a multi-dentate nitronyl nitroxide radical and M(hfac) 2 (M = Co II, Cu II). Dalton Trans 2018; 47:14630-14635. [PMID: 30276396 DOI: 10.1039/c8dt03222j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multi-dentate nitronyl nitroxide radical Nit-Ph-3,5-bIm (Nit-Ph-3,5-bIm = 2-[3,5-bis(1-imidazole)-phenyl]-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) reacted with Co(hfac)2·2H2O or Cu(hfac)2 to yield two novel 3d-radical complexes {[Co(hfac)2]2(Nit-Ph-3,5-bIm)}n1 and {[Cu(hfac)2]7(Nit-Ph-3,5-bIm)3}n2 (hfac- = hexafluoroacetylacetonate). In both compounds, the Nit-Ph-3,5-bIm radical ligand behaves as a tetradentate ligand to link four M(hfac)2 units in a μ4-η1:η1:η1:η1-coordination mode via its two NO groups and two N atoms of imidazole, generating a unique loop chain for 1 and a three-dimensional framework for 2. The magnetic studies revealed a strong antiferromagnetic Co-ON exchange interaction in 1 while a ferromagnetic Cu-ON interaction is observed in 2. The dc magnetic behaviors of two complexes are analyzed by means of appropriate magnetic models. Furthermore, ac magnetic susceptibilities of the Co complex reveal slow relaxation of magnetization.
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Affiliation(s)
- Juan Sun
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry College of Chemistry, Nankai University, Tianjin 300071, China.
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21
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Three cyclic lanthanide-radical complexes syntheses, crystal structures and magnetic properties. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.05.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Xie J, Li C, Sun G, Yang M, Li LC. New 2p-3d-4f Chain Compounds [Ln
Zn(hfac)5
(NIT-Pyrim)2
] constructed from Pyrimidine based Nitronyl Nitroxides. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jing Xie
- Department of Chemistry; Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Cun Li
- Department of Chemistry; Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Guifang Sun
- Department of Chemistry; Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Meng Yang
- Department of Chemistry; Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Li-Cun Li
- Department of Chemistry; Key Laboratory of Advanced Energy Materials Chemistry and Tianjin Key Laboratory of Metal and Molecule-based Material Chemistry; Nankai University; 300071 Tianjin P. R. China
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23
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Li XB, Ma Y, Gao EQ. Random Co(II)–Ni(II) Ferromagnetic Chains Showing Coexistent Antiferromagnetism, Metamagnetism, and Single-Chain Magnetism. Inorg Chem 2018; 57:7446-7454. [DOI: 10.1021/acs.inorgchem.8b01053] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiu-Bing Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- Jiansu Graphene Reseach Insitute, Changzhou 213149, China
| | - Yu Ma
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
| | - En-Qing Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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24
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Li XB, Cheng AL, Gao EQ. Random mixed-metal Co1−xNix single-chain magnets with simultaneous azide, carboxylate and tetrazolate bridges. Dalton Trans 2018; 47:9685-9692. [DOI: 10.1039/c8dt01676c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of MOFs based on random ferromagnetic Co1−xNix chains with simultaneous azide, carboxylate and tetrazolate bridges show metamagnetism and slow magnetic relaxation with complicated composition dependence and synergistic effects on single-chain slow dynamics.
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Affiliation(s)
- Xiu-Bing Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Ai-Ling Cheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - En-Qing Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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25
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Pan Y, Zhang H, Qin Y, Ge Y, Cui Y, Li Y, Liu W, Dong Y. Eight homodinuclear lanthanide complexes prepared from a quinoline based ligand: structural diversity and single-molecule magnetism behaviour. NEW J CHEM 2018. [DOI: 10.1039/c7nj04622g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eight dinuclear complexes are prepared and characterized; complex 6 exhibits SMM behavior with a Ueff value of 14.83 K.
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Affiliation(s)
- Yangdan Pan
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Haifeng Zhang
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yaru Qin
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yu Ge
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yanfeng Cui
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yahong Li
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Wei Liu
- College of Chemistry, Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yaping Dong
- Key Laboratory of Salt Lake Resources and Chemistry
- Qinghai Institute of Salt Lakes
- Chinese Academy of Sciences
- Xining 810008
- P. R. China
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26
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Zhu M, Lou D, Deng X, Zhang L, Zhang W, Lü Y. A functional nitroxide ligand builds up two 2p–3d complexes with different spin ground states and a 2p–3d–4f chain of rings. CrystEngComm 2018. [DOI: 10.1039/c8ce00178b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Three new 2p–3d and 2p–3d–4f complexes derived from a functional nitroxide radical with different spin ground states and spin topologies have been synthesized.
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Affiliation(s)
- Mei Zhu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Dingshuo Lou
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xiaochun Deng
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Li Zhang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Wei Zhang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Yaohong Lü
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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