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Niu X, Yuan M, Zhao R, Wang L, Liu Y, Zhao H, Li H, Yang X, Wang K. Fabrication strategies for chiral self-assembly surface. Mikrochim Acta 2024; 191:202. [PMID: 38492117 DOI: 10.1007/s00604-024-06278-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
Chiral self-assembly is the spontaneous organization of individual building blocks from chiral (bio)molecules to macroscopic objects into ordered superstructures. Chiral self-assembly is ubiquitous in nature, such as DNA and proteins, which formed the foundation of biological structures. In addition to chiral (bio) molecules, chiral ordered superstructures constructed by self-assembly have also attracted much attention. Chiral self-assembly usually refers to the process of forming chiral aggregates in an ordered arrangement under various non-covalent bonding such as H-bond, π-π interactions, van der Waals forces (dipole-dipole, electrostatic effects, etc.), and hydrophobic interactions. Chiral assembly involves the spontaneous process, which followed the minimum energy rule. It is essentially an intermolecular interaction force. Self-assembled chiral materials based on chiral recognition in electrochemistry, chiral catalysis, optical sensing, chiral separation, etc. have a broad application potential with the research development of chiral materials in recent years.
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Affiliation(s)
- Xiaohui Niu
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China.
| | - Mei Yuan
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Rui Zhao
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Luhua Wang
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Yongqi Liu
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Hongfang Zhao
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Hongxia Li
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China
| | - Xing Yang
- School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, People's Republic of China.
| | - Kunjie Wang
- College of Petrochemical Technology, Lanzhou University of Technology, 730050, Lanzhou, People's Republic of China.
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Ferentinos E, Tzeli D, Sottini S, Groenen EJJ, Ozerov M, Poneti G, Kaniewska-Laskowska K, Krzystek J, Kyritsis P. Magnetic anisotropy and structural flexibility in the field-induced single ion magnets [Co{(OPPh 2)(EPPh 2)N} 2], E = S, Se, explored by experimental and computational methods. Dalton Trans 2023; 52:2036-2050. [PMID: 36692040 PMCID: PMC9926333 DOI: 10.1039/d2dt03335f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/14/2023] [Indexed: 01/25/2023]
Abstract
During the last few years, a large number of mononuclear Co(II) complexes of various coordination geometries have been explored as potential single ion magnets (SIMs). In the work presented herein, the Co(II) S = 3/2 tetrahedral [Co{(OPPh2)(EPPh2)N}2], E = S, Se, complexes (abbreviated as CoO2E2), bearing chalcogenated mixed donor-atom imidodiphosphinato ligands, were studied by both experimental and computational techniques. Specifically, direct current (DC) magnetometry provided estimations of their zero-field splitting (zfs) axial (D) and rhombic (E) parameter values, which were more accurately determined by a combination of far-infrared magnetic spectroscopy and high-frequency and -field EPR spectroscopy studies. The latter combination of techniques was also implemented for the S = 3/2 tetrahedral [Co{(EPiPr2)2N}2], E = S, Se, complexes, confirming the previously determined magnitude of their zfs parameters. For both pairs of complexes (E = S, Se), it is concluded that the identity of the E donor atom does not significantly affect their zfs parameters. High-resolution multifrequency EPR studies of CoO2E2 provided evidence of multiple conformations, which are more clearly observed for CoO2Se2, in agreement with the structural disorder previously established for this complex by X-ray crystallography. The CoO2E2 complexes were shown to be field-induced SIMs, i.e., they exhibit slow relaxation of magnetization in the presence of an external DC magnetic field. Advanced quantum-chemical calculations on CoO2E2 provided additional insight into their electronic and structural properties.
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Affiliation(s)
- Eleftherios Ferentinos
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, GR-15771 Athens, Greece.
| | - Demeter Tzeli
- Physical Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, GR-15771 Athens, Greece
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Ave., GR-11635 Athens, Greece
| | - Silvia Sottini
- Huygens-Kamerlingh Onnes Laboratory, Department of Physics, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Edgar J J Groenen
- Huygens-Kamerlingh Onnes Laboratory, Department of Physics, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - Mykhaylo Ozerov
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
| | - Giordano Poneti
- Instituto de Química, Universidade Federal do Rio de Janeiro, 21941-909 Rio de Janeiro, Brazil.
| | - Kinga Kaniewska-Laskowska
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza St. 11/12, Gdańsk PL-80-233, Poland
| | - J Krzystek
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
| | - Panayotis Kyritsis
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, GR-15771 Athens, Greece.
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Interplay of Anisotropic Exchange Interactions and Single-Ion Anisotropy in Single-Chain Magnets Built from Ru/Os Cyanidometallates(III) and Mn(III) Complex. Molecules 2023; 28:molecules28031516. [PMID: 36771182 PMCID: PMC9921754 DOI: 10.3390/molecules28031516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 02/08/2023] Open
Abstract
Two novel 1D heterobimetallic compounds {[MnIII(SB2+)MIII(CN)6]·4H2O}n (SB2+ = N,N'-ethylenebis(5-trimethylammoniomethylsalicylideneiminate) based on orbitally degenerate cyanidometallates [OsIII(CN)6]3- (1) and [RuIII(CN)6]3- (2) and MnIII Schiff base complex were synthesized and characterized structurally and magnetically. Their crystal structures consist of electrically neutral, well-isolated chains composed of alternating [MIII(CN)6]3- anions and square planar [MnIII(SB2+)]3+ cations bridged by cyanide groups. These -ion magnetic anisotropy of MnIII centers. These results indicate that the presence of compounds exhibit single-chain magnet (SCM) behavior with the energy barriers of Δτ1/kB = 73 K, Δτ2/kB = 41.5 K (1) and Δτ1/kB = 51 K, Δτ2 = 27 K (2). Blocking temperatures of TB = 2.8, 2.1 K and magnetic hysteresis with coercive fields (at 1.8 K) of 8000, 1600 Oe were found for 1 and 2, respectively. Theoretical analysis of the magnetic data reveals that their single-chain magnet behavior is a product of a complicated interplay of extremely anisotropic triaxial exchange interactions in MIII(4d/5d)-CN-MnIII fragments: -JxSMxSMnx-JySMySMny-JzSMzSMnz, with opposite sign of exchange parameters Jx = -22, Jy = +28, Jz = -26 cm-1 and Jx = -18, Jy = +20, Jz = -18 cm-1 in 1 and 2, respectively) and single orbitally degenerate [OsIII(CN)6]3- and [RuIII(CN)6]3- spin units with unquenched orbital angular momentum in the chain compounds 1 and 2 leads to a peculiar regime of slow magnetic relaxation, which is beyond the scope of the conventional Glaubers's 1D Ising model and anisotropic Heisenberg model.
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Kolanji K, Postulka L, Wolf B, Lang M, Schollmeyer D, Baumgarten M. Planar Benzo[1,2- b:4,5- b']dithiophene Derivatives Decorated with Nitronyl and Imino Nitroxides. J Org Chem 2019; 84:140-149. [PMID: 30421918 DOI: 10.1021/acs.joc.8b02499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Four weakly antiferromagnetic interacting biradicals of benzo[1,2- b:4,5- b']dithiophene (BDT) and BDT extended with two thiophenes (BDTTh2) linked with nitronyl and imino nitroxides (NN and IN) as BDT-NN, BDT-IN, BDTTh2-NN, and BDTTh2-IN were designed, synthesized, and characterized. Short intermolecular π-π distances were found (3.42 Å) for BDT-NN, whereas larger ones were found for BDT-IN (3.54 Å) and BDTTh2-NN (3.67 Å), respectively. Intramolecular magnetic interaction ( Jintra,exp/ kB) of BDT-NN (-26 K) is much larger than for BDT-IN (-5.3 K), while it is reduced for the dithiophene-extended molecule BDTTh2-NN (-2.3 K). Intermolecular interactions ( zJinter,exp/ kB) of BDT-NN (-6.5 K) and BDT-IN (-6.0 K) are stronger than for BDTTh2-NN (-4.6 K). Such large intermolecular couplings resulting from good π-stacking mark BDT-IN and BDTTh2-NN as promising crystalline materials with similar sized Jintra and Jinter. In addition, we also extracted a coupling within the chain of Jchain/ kB = -2.2 K and a coupling between the chains of zJinterchain = -1.5 K for BDTTh2-NN by a Heisenberg chain model. Intra- and intermolecular interactions and spin densities were examined by DFT studies.
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Affiliation(s)
- Kubandiran Kolanji
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Lars Postulka
- Physikalisches Institut , J.W. Goethe-Universität Frankfurt , Max-von-Laue- Strasse 1 , 60438 Frankfurt am Main , Germany
| | - Bernd Wolf
- Physikalisches Institut , J.W. Goethe-Universität Frankfurt , Max-von-Laue- Strasse 1 , 60438 Frankfurt am Main , Germany
| | - Michael Lang
- Physikalisches Institut , J.W. Goethe-Universität Frankfurt , Max-von-Laue- Strasse 1 , 60438 Frankfurt am Main , Germany
| | - Dieter Schollmeyer
- Institut für Organische Chemie , Johannes Gutenberg-Universität Mainz , Duesbergweg 10-14 , 55099 Mainz , Germany
| | - Martin Baumgarten
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
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Maniaki D, Pilichos E, Perlepes SP. Coordination Clusters of 3d-Metals That Behave as Single-Molecule Magnets (SMMs): Synthetic Routes and Strategies. Front Chem 2018; 6:461. [PMID: 30356793 PMCID: PMC6190736 DOI: 10.3389/fchem.2018.00461] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/14/2018] [Indexed: 11/18/2022] Open
Abstract
The area of 3d-metal coordination clusters that behave as Single-Molecule Magnets (SMMs) is now quite mature within the interdisciplinary field of Molecular Magnetism. This area has created a renaissance in Inorganic Chemistry. From the synthetic Inorganic Chemistry viewpoint, the early years of "try and see" exercises (1993-2000) have been followed by the development of strategies and strict approaches. Our review will first summarize the early synthetic efforts and routes for the preparation of polynuclear 3d-metal SMMs, and it will be then concentrated on the description of the existing strategies. The former involve the combination of appropriate 3d-metal-containing starting materials (simple salts with inorganic anions, metal cardoxylates, and pre-formed carboxylate clusters, metal phosphonates) and one or two primary organic ligands; the importance of the end-on azido group as a ferromagnetic coupler in 3d-metal SMM chemistry will be discussed. The utility of comproportionation reactions and the reductive aggregation route for the construction of manganese SMMs will also be described. Most of the existing strategies for the synthesis of SMMs concern manganese. These involve substitution of carboxylate ligands in pre-formed SMMs by other carboxylate or non-carboxylate groups, reduction procedures for the {Mn 8 III Mn 4 IV } SMMs, spin "tweaking," "switching on" SMM properties upon conversion of low-spin clusters into high-spin ones, ground-state spin switching and enhancing SMM properties via targeted structural distortions, the use of radical bridging ligands and supramolecular approaches. A very useful strategy is also the "switching on" of SMM behavior through replacement of bridging hydroxide groups by end-on azido or isocyanato ligands in clusters. Selected examples will be mentioned and critically discussed. Particular emphasis will be given on the criteria for the choice of ligands.
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Farris PC, Wall AD, Chellali JE, Chittim CL, Landee CP, Turnbull MM, Wikaira JL. Copper(II) halide complexes of aminopyridines: Syntheses, structures and magnetic properties of [(5CAP)2CuX2] and [(5BAP)nCuX2] (X = Cl, Br). J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1499901] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Penelope C. Farris
- Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Alexander D. Wall
- Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Jonathan E. Chellali
- Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Carina L. Chittim
- Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | | | - Mark M. Turnbull
- Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Jan L. Wikaira
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch New Zealand
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7
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Bhowmick I, Roehl AJ, Neilson JR, Rappé AK, Shores MP. Slow magnetic relaxation in octahedral low-spin Ni(iii) complexes. Chem Sci 2018; 9:6564-6571. [PMID: 30310588 PMCID: PMC6115677 DOI: 10.1039/c7sc04482h] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 06/28/2018] [Indexed: 11/28/2022] Open
Abstract
Herein we report the first examples of single-molecule magnet (SMM) behaviour in S = 1/2 Ni(iii) complexes. We find that low-spin 3d7 trans-[NiIII(cyclam)(X)2]Y complexes (cyclam = 1,4,8,11-tetraazacyclotetradecane; X and Y are singly charged anions) exhibit field-induced slow relaxation of magnetization for O-donor axial ligands (nitrate) but not for N-donor variants (isothiocyanate). Experimental and electronic structure computational investigations indicate that intrinsic spin polarisation of low-spin Ni(iii) is modulated significantly by local coordination geometry and supramolecular interactions. Solid state dilution of Ni(iii) with diamagnetic Co(iii) ions forms a related complex salt, [Ni x Co1-x (cyclam)(NO3)2](NO3)·2HNO3 (0.1 < x < 1), which preserves slow magnetic dynamics, thus supporting a molecular component to slow relaxation. An initial analysis of magnetic relaxation lifetime fits best to a combination of Raman and direct relaxation processes.
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Affiliation(s)
- Indrani Bhowmick
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523-1872 , USA . ;
| | - Andrew J Roehl
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523-1872 , USA . ;
| | - James R Neilson
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523-1872 , USA . ;
| | - Anthony K Rappé
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523-1872 , USA . ;
| | - Matthew P Shores
- Department of Chemistry , Colorado State University , Fort Collins , CO 80523-1872 , USA . ;
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8
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Six-Coordinate Ln(III) Complexes with Various Coordination Geometries Showing Distinct Magnetic Properties. INORGANICS 2018. [DOI: 10.3390/inorganics6010016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Kolanji K, Ravat P, Bogomyakov AS, Ovcharenko VI, Schollmeyer D, Baumgarten M. Mixed Phenyl and Thiophene Oligomers for Bridging Nitronyl Nitroxides. J Org Chem 2017; 82:7764-7773. [PMID: 28664730 DOI: 10.1021/acs.joc.7b00435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of four nitronyl nitroxide (NN) biradicals is described which are conjugatively linked through p-ter-phenyl (PPP), ter-thiophene (TTT) and alternating phenylene (P) and thiophene (T) units as PTP and TPT. We first utilized Suzuki and Stille coupling reactions through protection and deprotection protocols to synthesize these (NN) biradicals. Single crystals were efficiently grown for radical precursors of 3, 5, 6, PPP-NNSi, PTP-NNSi, and final biradicals of TTT-NN, TPT-NN, and PPP-NN, whose structures and molecular packing were examined by X-ray diffraction studies. As a result, much smaller torsions between the NN and thiophene units (∼10°) in TTT-NN and TPT-NN than for NN and phenyl units (∼29°) in PPP-NN were observed due to smaller hindrance for a five vs a six membered ring. All four biradicals TTT-NN, TPT-NN, PTP-NN, and PPP-NN were investigated by EPR and optical spectroscopy combined with DFT calculations. The magnetic susceptibility was studied by SQUID measurements for TTT-NN and TPT-NN. The intramolecular exchange interactions for TPT-NN and TTT-NN were found in good agreement with the ones calculated by broken symmetry DFT calculations.
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Affiliation(s)
- Kubandiran Kolanji
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
| | - Prince Ravat
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
| | - Artem S Bogomyakov
- International Tomography Center, Siberian Branch, Russian Academy of Sciences , Institutskaya Str. 3a, 630090 Novosibirsk, Russian Federation
| | - Victor I Ovcharenko
- International Tomography Center, Siberian Branch, Russian Academy of Sciences , Institutskaya Str. 3a, 630090 Novosibirsk, Russian Federation
| | - Dieter Schollmeyer
- Institut fuer Organische Chemie, Universitaet Mainz , Duesbergweg 10-14, 55099, Mainz, Germany
| | - Martin Baumgarten
- Max Planck Institute for Polymer Research, Ackermannweg 10 , 55128 Mainz, Germany
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Zhang X, Xie H, Ballesteros-Rivas M, Woods TJ, Dunbar KR. Conducting Molecular Nanomagnet of Dy III with Partially Charged TCNQ Radicals. Chemistry 2017; 23:7448-7452. [PMID: 28401665 DOI: 10.1002/chem.201701590] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Indexed: 11/06/2022]
Abstract
Bifunctional electrically conducting single-molecule magnets are highly promising platforms for non-volatile memory devices and quantum computing applications. The development of these molecular materials, however, has largely been hindered by the lack of straightforward synthetic methods. Herein a facile and modular approach is demonstrated for the realization of bifunctional materials that does not require electrochemical or chemical oxidation to obtain partially charged organic radicals. Magnetic and electrical conductivity studies reveal that the DyIII compound exhibits slow relaxation of the magnetization between 5.0-8.0 K and semiconducting behavior over the range 180-350 K. DC magnetic fields have been found to suppress the quantum tunneling of the magnetization and affect the spin-canted antiferromagnetic interactions.
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Affiliation(s)
- Xuan Zhang
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Haomiao Xie
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Maria Ballesteros-Rivas
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Toby J Woods
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
| | - Kim R Dunbar
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX, 77842-3012, USA
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Hazra S, Titiš J, Valigura D, Boča R, Mohanta S. Bis-phenoxido and bis-acetato bridged heteronuclear {Co(III)Dy(III)} single molecule magnets with two slow relaxation branches. Dalton Trans 2017; 45:7510-20. [PMID: 27046444 DOI: 10.1039/c6dt00848h] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Two bis-μ-phenoxido-bis-μ-acetato heterobimetallic {Co(III)Dy(III)} complexes and , formulated as [Co(III)Dy(III)L(μ-OAc)2(NO3)2] derived from the comparable hexadentate Schiff bases N,N'-ethylenebis(3-ethoxysalicylaldimine) and N,N'-ethylenebis(3-methoxysalicylaldimine) were synthesized and X-ray structure analysis confirms their nearly identical structures. These are the first examples of bis(μ-phenoxido)-bis(μ-carboxylato) {Co(III)Dy(III)} systems. The AC susceptibility measurements show that both complexes exhibit a field-induced slow magnetic relaxation with two relaxation branches. While the high-frequency process spans the usual range of the relaxation time for analogous single molecule magnets (τ0 ∼ 10(-7) s), the low-frequency branch is as slow as τ ∼ 0.1 s at T = 1.9 K and B = 0.2 T.
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Affiliation(s)
- Susanta Hazra
- Department of Chemistry, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700 009, India. and Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Ján Titiš
- Department of Chemistry, FPV, University of SS Cyril and Methodius, Trnava, Slovakia.
| | - Dušan Valigura
- Department of Chemistry, FPV, University of SS Cyril and Methodius, Trnava, Slovakia.
| | - Roman Boča
- Department of Chemistry, FPV, University of SS Cyril and Methodius, Trnava, Slovakia.
| | - Sasankasekhar Mohanta
- Department of Chemistry, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700 009, India.
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Stock C, Rodriguez EE, Lee N, Green MA, Demmel F, Ewings RA, Fouquet P, Laver M, Niedermayer C, Su Y, Nemkovski K, Rodriguez-Rivera JA, Cheong SW. Solitary Magnons in the S=5/2 Antiferromagnet CaFe_{2}O_{4}. PHYSICAL REVIEW LETTERS 2016; 117:017201. [PMID: 27419585 DOI: 10.1103/physrevlett.117.017201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 06/06/2023]
Abstract
CaFe_{2}O_{4} is a S=5/2 anisotropic antiferromagnet based upon zig-zag chains having two competing magnetic structures, denoted as the A (↑↑↓↓) and B (↑↓↑↓) phases, which differ by the c-axis stacking of ferromagnetic stripes. We apply neutron scattering to demonstrate that the competing A and B phase order parameters result in magnetic antiphase boundaries along c which freeze on the time scale of ∼1 ns at the onset of magnetic order at 200 K. Using high resolution neutron spectroscopy, we find quantized spin wave levels and measure 9 such excitations localized in regions ∼1-2 c-axis lattice constants in size. We discuss these in the context of solitary magnons predicted to exist in anisotropic systems. The magnetic anisotropy affords both competing A+B orders as well as localization of spin excitations in a classical magnet.
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Affiliation(s)
- C Stock
- School of Physics and Astronomy and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - E E Rodriguez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - N Lee
- Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA
| | - M A Green
- School of Physical Sciences, University of Kent, Canterbury CT2 7NH, United Kingdom
| | - F Demmel
- ISIS Facility, Rutherford Appleton Labs, Chilton, Didcot OX11 0QX, United Kingdom
| | - R A Ewings
- ISIS Facility, Rutherford Appleton Labs, Chilton, Didcot OX11 0QX, United Kingdom
| | - P Fouquet
- Institute Laue-Langevin, 6 rue Jules Horowitz, Boite Postale 156, 38042 Grenoble Cedex 9, France
| | - M Laver
- School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Ch Niedermayer
- Laboratory for Neutron Scattering, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
| | - Y Su
- Jülich Centre for Neuton Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ, Lichtenbergstraße 1, D-85747 Garching, Germany
| | - K Nemkovski
- Jülich Centre for Neuton Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ, Lichtenbergstraße 1, D-85747 Garching, Germany
| | - J A Rodriguez-Rivera
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
- Department of Materials Science, University of Maryland, College Park, Maryland 20742, USA
| | - S-W Cheong
- Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA
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Schmitz S, Monakhov KY, van Leusen J, Izarova N, Heß V, Kögerler P. {CoII/III5} horseshoe and {NiII4} lacunary cubane coordination clusters: the isobutyrate/N-butyldiethanolamine reaction system. RSC Adv 2016. [DOI: 10.1039/c6ra19232g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A combination of carboxylate and diethanolamine-type ligands direct the formation of unusual discrete {NiII4} and {CoII/III5} structures under otherwise identical reaction conditions.
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Affiliation(s)
- Sebastian Schmitz
- Institut für Anorganische Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
| | | | - Jan van Leusen
- Institut für Anorganische Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Natalya V. Izarova
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6)
- Forschungszentrum Jülich
- 52425 Jülich
- Germany
| | - Volkmar Heß
- Institut für Anorganische Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6)
| | - Paul Kögerler
- Institut für Anorganische Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
- Jülich-Aachen Research Alliance (JARA-FIT) and Peter Grünberg Institute (PGI-6)
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14
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Peresypkina EV, Samsonenko DG, Vostrikova KE. Heterobimetallic coordination polymers involving 3 d metal complexes and heavier transition metals cyanometallates. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2014.08.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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16
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Zhang P, Zhang L, Tang J. Lanthanide single molecule magnets: progress and perspective. Dalton Trans 2015; 44:3923-9. [DOI: 10.1039/c4dt03329a] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The recent developments in lanthanide SMMs highlighted in this frontier article indicate the directions to which further synthetic efforts should be focused.
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Affiliation(s)
- Peng Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Li Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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17
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Zhou H, Wang Y, Mou F, Shen X, Liu Y. Low dimensional magnetic assemblies based on MnIII(Schiff base) and/or Mer-tricyanidoferrate building blocks: Syntheses, crystal structures and magnetic properties. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Lu XY, Liu YQ, Deng XW, Zhu ZX, Yao MX, Jing S. Synthesis, structures and magnetism of heterodinuclear Ni–Ln complexes: field-induced single-molecule magnet behavior in the dysprosium analogue. NEW J CHEM 2015. [DOI: 10.1039/c4nj02162b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Three isomorphous Ni–Ln heterodinuclear complexes were synthesized and structurally characterized. The Dy derivative exhibits field-induced single-molecule magnet behavior with an effective energy barrier of 16.9 K under a 1000 Oe dc field.
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Affiliation(s)
- Xing-Yun Lu
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Yu-Qing Liu
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Xiao-Wei Deng
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Zhao-Xia Zhu
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Min-Xia Yao
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
| | - Su Jing
- College of Science
- Nanjing Tech University
- Nanjing
- P. R. China
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19
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Pinkowicz D, Podgajny R, Nowicka B, Chorazy S, Reczyński M, Sieklucka B. Magnetic clusters based on octacyanidometallates. Inorg Chem Front 2015. [DOI: 10.1039/c4qi00189c] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A complete review of all known octacyanide-based clusters with an extensive discussion of their structures, magnetic properties and multifunctionality.
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Affiliation(s)
- Dawid Pinkowicz
- Jagiellonian University
- Faculty of Chemistry
- 30-060 Kraków
- Poland
| | - Robert Podgajny
- Jagiellonian University
- Faculty of Chemistry
- 30-060 Kraków
- Poland
| | - Beata Nowicka
- Jagiellonian University
- Faculty of Chemistry
- 30-060 Kraków
- Poland
| | - Szymon Chorazy
- Jagiellonian University
- Faculty of Chemistry
- 30-060 Kraków
- Poland
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20
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Samsonenko DG, Paulsen C, Lhotel E, Mironov VS, Vostrikova KE. [MnIII(Schiff Base)]3[ReIV(CN)7], Highly Anisotropic 3D Coordination Framework: Synthesis, Crystal Structure, Magnetic Investigations, and Theoretical Analysis. Inorg Chem 2014; 53:10217-31. [DOI: 10.1021/ic501247x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Denis G. Samsonenko
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Lavrentiev Avenue, Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova
Street, Novosibirsk 630090, Russia
| | - Carley Paulsen
- Institut Néel, CNRS & Université Joseph Fourier, 25 Rue des Martyrs, 38042 Grenoble, France
| | - Elsa Lhotel
- Institut Néel, CNRS & Université Joseph Fourier, 25 Rue des Martyrs, 38042 Grenoble, France
| | - Vladimir S. Mironov
- A. V. Shubnikov Institute of Crystallography, RAS, 59 Leninsky Avenue, 119333 Moscow, Russia
| | - Kira E. Vostrikova
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Lavrentiev Avenue, Novosibirsk 630090, Russia
- Laboratoire des Multimatériaux
et Interfaces, UMR 5615, Université Claude Bernard Lyon 1, Bat. Chevreul, 43 bd du 11 Novembre 1918, 69622 Villeurbanne, France
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21
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Rams M, Peresypkina EV, Mironov VS, Wernsdorfer W, Vostrikova KE. Magnetic Relaxation of 1D Coordination Polymers (X)2[Mn(acacen)Fe(CN)6], X = Ph4P+, Et4N+. Inorg Chem 2014; 53:10291-300. [DOI: 10.1021/ic501330j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Michał Rams
- Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland
| | - Eugenia V. Peresypkina
- Nikolaev Institute of Inorganic Chemistry, 3 Lavrentiev avenue, 630090 Novosibirsk, Russia
| | - Vladimir S. Mironov
- A. V. Schubnikov Institute of Crystallography, RAS, 59 Lenin avenue, 119333 Moscow, Russia
| | | | - Kira E. Vostrikova
- Nikolaev Institute of Inorganic Chemistry, 3 Lavrentiev avenue, 630090 Novosibirsk, Russia
- LMI, Université Claude Bernard Lyon 1, 69622 Villeurbanne
Cedex, France
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22
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Kazin PE, Zykin MA, Zubavichus YV, Magdysyuk OV, Dinnebier RE, Jansen M. Identification of the chromophore in the apatite pigment [Sr10(PO4)6(Cu(x)OH(1-x-y))2]: linear OCuO- featuring a resonance Raman effect, an extreme magnetic anisotropy, and slow spin relaxation. Chemistry 2014; 20:165-78. [PMID: 24516889 DOI: 10.1002/chem.201303136] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A new chromophore has been identified in copper-doped apatite pigments having the general composition [Sr(10)(PO(4))(6)(Cu(x)OH(1-x-y))(2)], in which x=0.1, 0.3 and y=0.01-0.42. By using X-ray absorption spectroscopy, low-temperature magnetization measurements, and synchrotron X-ray powder structure refinement, it has been shown that the oxygenated compounds contain simultaneously diamagnetic Cu(1+) and paramagnetic Cu(3+) with S=1. Cu(3+) is located at the same crystallographic position as Cu(1+), being linearly coordinated by two oxygen atoms and forming the OCuO(-) anion. The Raman spectroscopy study of [A(10)(PO(4))(6)(Cu(x)OH(1-x-y))(2)], in which A=Ca, Sr, Ba, reveals resonance bands at 651-656 cm(-1) assigned to the symmetric stretching vibration (ν(1)) of OCuO(-). The strontium apatite pigment exhibits a strong paramagnetic anisotropy with an unprecedentedly large negative zero-field splitting parameter (D) of ≈-400 cm(-1). The extreme magnetic anisotropy causes slow magnetization relaxation with relaxation times (τ) up to 0.3 s at T=2 K, which relates the compounds to single-ion magnets. At low temperature, τ is limited by a spin quantum-tunneling, whereas at high temperature a thermally activated relaxation prevails with U(eff)≈48 cm(-1). Strong dependence of τ on the paramagnetic center concentration at low temperature suggests that the spin-spin relaxation dominates in the spin quantum-tunneling process. The compound is the first example of a d-metal-based single-ion magnet with S=1, the smallest spin at which an energy barrier arises for the spin flipping.
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23
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Saber MR, Prosvirin AV, Abrahams BF, Elliott RW, Robson R, Dunbar KR. Magnetic Coupling between Metal Spins through the 7,7,8,8‐Tetracyanoquinodimethane (TCNQ) Dianion. Chemistry 2014; 20:7593-7. [DOI: 10.1002/chem.201402227] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Mohamed R. Saber
- Department of Chemistry, Texas A&M University, College Station, TX 77842‐3012 (USA)
- Department of Chemistry, Fayoum University, Fayoum, 63514 (Egypt)
| | - Andrey V. Prosvirin
- Department of Chemistry, Texas A&M University, College Station, TX 77842‐3012 (USA)
| | - Brendan F. Abrahams
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010 (Australia)
| | - Robert W. Elliott
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010 (Australia)
| | - Richard Robson
- School of Chemistry, University of Melbourne, Parkville, Victoria 3010 (Australia)
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, College Station, TX 77842‐3012 (USA)
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24
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Cimpoesu F, Dragoe N, Ramanantoanina H, Urland W, Daul C. The theoretical account of the ligand field bonding regime and magnetic anisotropy in the DySc2N@C80 single ion magnet endohedral fullerene. Phys Chem Chem Phys 2014; 16:11337-48. [DOI: 10.1039/c4cp00953c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Methodological advances for the treatment of electron structure and properties of the f-type ions embedded in fullerenes are presented.
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Affiliation(s)
| | - Nita Dragoe
- Université Paris Sud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- CNRS UMR 8182
- 91405 Orsay Cedex, France
| | | | - Werner Urland
- Department of Chemistry
- University of Fribourg
- CH 1700 Fribourg, Switzerland
| | - Claude Daul
- Department of Chemistry
- University of Fribourg
- CH 1700 Fribourg, Switzerland
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25
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Zhou H, Yan J, Shen X, Zhou H, Yuan A. Low dimensional cyano-bridged heterobimetallic M–FeIII(M = NiII, CuII) complexes constructed from Mer-[FeIII(qcq)(CN)3]−building blocks: syntheses, structures and magnetic properties. RSC Adv 2014. [DOI: 10.1039/c3ra45218b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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26
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Shen X, Zhou H, Yan J, Li Y, Zhou H. Syntheses, Crystal Structures, and Magnetic Properties of Four New Cyano-Bridged Bimetallic Complexes Based on the mer-[FeIII(qcq)(CN)3]− Building Block. Inorg Chem 2013; 53:116-27. [PMID: 24350592 DOI: 10.1021/ic401753y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoping Shen
- School of Chemistry and Chemical Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, China
| | - Hongbo Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, China
| | - Jiahao Yan
- School of Chemistry and Chemical Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, China
| | - Yanfeng Li
- School of Chemistry and Chemical Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, China
| | - Hu Zhou
- School of Material
Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
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27
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Synthesis, structural and magnetic characterizations of new complexes of di-2,6-(2-pyridylcarbonyl)pyridine (pyCOpyCOpy) ligand. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.05.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Zhang P, Zhang L, Lin SY, Tang J. Tetranuclear [MDy]2 Compounds and Their Dinuclear [MDy] (M = Zn/Cu) Building Units: Their Assembly, Structures, and Magnetic Properties. Inorg Chem 2013; 52:6595-602. [DOI: 10.1021/ic400620j] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peng Zhang
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- University of Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Li Zhang
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- College of Chemistry and Chemical
Engineering, Inner Mongolia University,
Hohhot 010021, P. R. China
| | - Shuang-Yan Lin
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
- University of Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Jinkui Tang
- State Key Laboratory of Rare
Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R.
China
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