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Menezes HNS, Júnior HCS, Ferreira GB. Ab initio investigation of the geometrical behavior in solution and electronic structure of the anion complexes [bis(1,3-dithiole-2-thione-4,5-dithiolate)M], for M = Bi(III), Sb(III), and Zn(II). J Mol Model 2024; 30:258. [PMID: 38976085 DOI: 10.1007/s00894-024-06052-6] [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: 03/01/2024] [Accepted: 06/27/2024] [Indexed: 07/09/2024]
Abstract
CONTEXT 1,3-Dithiole-2-thione-4,5-dithiolate (dmit) ligands are known for their conductive and optical properties. Dmit compounds have been assessed for use in sensor devices, information storage, spintronics, and optical material applications. Associations with various metallic centers endow dmit complexes with magnetic, optical, conductive, and antioxidant properties. Optical doping can facilitate the fabrication of magnetic conductor materials from ground-state nonmagnetic cations. While most studied complexes involve transition-metal centers due to their diverse chemistry, compounds with representative elements are less explored in the literature. This study investigated the structural and electronic properties of bisdmit complexes with representative Bi(III), Sb(III), and Zn(II) cations. AIMD calculations revealed two new geometries for Bi(III) and Zn(II) complexes, diverging from the isolated geometry typically used in quantum chemical calculations. The coordination of acetonitrile molecules to the cationic centers of the complexes resulted in unstable structures, while the dimerization of the complexes was stable. SA-CASSCF/NEVPT2 calculations were applied to the structures of the isolated complexes and stable dimers, confirming the multireference character of the electronic structure of the three systems and the multiconfigurational character of the Bi(III) complex. The electronic spectra simulated by the STEOM-DLPNO-CCSD calculations accurately reproduced the experimental UV‒Vis spectra indicating the participation of the isolated Bi(III) dmit complex and its dimeric form in solution. METHODOLOGY AIMD calculations of the dmit salts were conducted using the GFN2-xTB method with 60 explicit acetonitrile molecules as the solvent at 300 K for a total simulation time of 50.0 ps, with printing intervals of 0.5 fs. The final geometries were optimized employing the PBEh-3c compound method, incorporating implicit conductor-like polarizable continuum model (CPCM) solvation for acetonitrile. Local energy decomposition (LED) analysis at the DLPNO-CCSD(T)/Def2-TZVP level of theory was utilized to investigate the stability of the complex geometries identified by AIMD. The electronic structures of the complexes were assessed using the SA-CASSCF/NEVPT2/Def2-TZVP method to confirm the multiconfigurational and multireference nature of their electronic structures. Electronic spectra were analyzed using the STEOM-DLPNO-CCSD/Def2-TZVP method, with CPCM used to simulate an acetonitrile medium.
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Affiliation(s)
- Heloisa N S Menezes
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil
| | - Henrique C S Júnior
- Programa de Pós-Graduação em Química, Instituto de Química, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, Agronomia, Porto Alegre, RS, 90650-001, Brazil
| | - Glaucio B Ferreira
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de S. João Batista s/n., Centro, Niterói, RJ, 24210-130, Brazil.
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2
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Wan Q, Wakizaka M, Funakoshi N, Shen Y, Che CM, Yamashita M. Step-by-Step Electrocrystallization Processes to Make Multiblock Magnetic Molecular Heterostructures. J Am Chem Soc 2023. [PMID: 37196226 DOI: 10.1021/jacs.3c02571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Assembling conductive or magnetic heterostructures by bulk inorganic materials is important for making functional electronic or spintronic devices, such as semiconductive p-doped and n-doped silicon for P-N junction diodes, alternating ferromagnetic and nonmagnetic conductive layers used in giant magnetoresistance (GMR). Nonetheless, there have been few demonstrations of conductive or magnetic heterostructures made by discrete molecules. It is of fundamental interest to prepare and investigate heterostructures based on molecular conductors or molecular magnets, such as single-molecule magnets (SMMs). Herein, we demonstrate the fabrication of a series of molecular heterostructures composed of (TTF)2M(pdms)2 (TTF = tetrathiafulvalene, M = Co(II), Zn(II), Ni(II), H2pdms = 1,2-bis(methanesulfonamido)benzene) multiple building blocks through a well-controlled step-by-step electrocrystallization growth process, where the Co(pdms)2, Ni(pdms)2, and Zn(pdms)2 anionic complex is a SMM, paramagnetic, and diamagnetic molecule, respectively. Magnetic and SMM properties of the heterostructures were characterized and compared to the parentage (TTF)2Co(pdms)2 complex. This study presents the first methodology for creating molecule-based magnetic heterostructural systems by electrocrystallization.
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Affiliation(s)
- Qingyun Wan
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Masanori Wakizaka
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Nobuto Funakoshi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
| | - Yongbing Shen
- Frontier Institute of Science and Technology (FIST), State Key Laboratory for Mechanical Behavior of Materials, MOE Key Laboratory for Nonequilibrium Synthesis of Condensed Matter, Xi'an Jiaotong University, 99 Yanxiang Road, Xi'an 710054, Shaanxi, China
| | - Chi-Ming Che
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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Mori H, Yokomori S, Dekura S, Ueda A. Proton-electron-coupled functionalities of conductivity, magnetism, and optical properties in molecular crystals. Chem Commun (Camb) 2022; 58:5668-5682. [PMID: 35420071 DOI: 10.1039/d1cc06826a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proton-electron-coupled reactions, specifically proton-coupled electron transfer (PCET), in biological and chemical processes have been extensively investigated for use in a wide variety of applications, including energy conversion and storage. However, the exploration of the functionalities of the conductivity, magnetism, and dielectrics by proton-electron coupling in molecular materials is challenging. Dynamic and static proton-electron-coupled functionalities are to be expected. This feature article highlights the recent progress in the development of functionalities of dynamic proton-electron coupling in molecular materials. Herein, single-unit conductivity by self-doping, quantum spin liquid state coupled with quantum fluctuation of protons, switching of conductivity and magnetism triggered by the disorder-order transition of deuterons, and their external responses under pressure and in the presence of an electric field are introduced. In addition, as for the functionalities of proton-d/π-electron coupling in metal dithiolene complexes, magnetic switching with multiple PCET and vapochromism induced by electron transfer through hydrogen-bond (H-bond) formation is introduced experimentally and theoretically. We also outlined the basic and applied issues and potential challenges for development of proton-electron-coupled molecular materials, functionalities, and devices.
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Affiliation(s)
- Hatsumi Mori
- The Institute for Solid State Physics, the University of Tokyo, 5-1-5 Kashiwabiha, Kashiwa 277-8581, Japan
| | - So Yokomori
- The Institute for Solid State Physics, the University of Tokyo, 5-1-5 Kashiwabiha, Kashiwa 277-8581, Japan
| | - Shun Dekura
- The Institute for Solid State Physics, the University of Tokyo, 5-1-5 Kashiwabiha, Kashiwa 277-8581, Japan
| | - Akira Ueda
- Department of Chemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.
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Synthesis, Crystal Structures and Magnetic Properties of Trinuclear {Ni2Ln} (LnIII = Dy, Ho) and {Ni2Y} Complexes with Schiff Base Ligands. CRYSTALS 2022. [DOI: 10.3390/cryst12010095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The reaction of the Schiff base ligand o-OH-C6H4-CH=N-C(CH2OH)3, H4L, with Ni(O2CMe)2∙4H2O and lanthanide nitrate salts in a 4:2:1 ratio lead to the formation of the trinuclear complexes [Ni2Ln(H3L)4(O2CMe)2](NO3) (Ln = Dy (1), Ho (2), and Y (3)) which crystallize in the non-centrosymmetric space group Pna21. The complex cation consists of the three metal ions in an almost linear arrangement. The {Ni2Ln} moieties are bridged through two deprotonated Ophenolato groups from two different ligands. Each terminal NiII ion is bound to two ligands through their Ophenolato, the Nimino atoms and one of the protonated Oalkoxo groups in a distorted octahedral. The central lanthanide ion is coordinated to four Ophenolato oxygen from the four ligands, and four Ocarboxylato atoms from two acetates which are bound in the bidentate chelate mode, and the coordination polyhedron is biaugmented trigonal prism, which probably results in a non-centrosymmetric arrangement of the complexes in the lattice. The magnetic properties of 1–3 were studied and showed that 1 exhibits field induced slow magnetic relaxation.
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Puzan A, Zychowicz M, Wang J, Zakrzewski JJ, Reczyński M, Ohkoshi SI, Chorazy S. Tunable magnetic anisotropy in luminescent cyanido-bridged {Dy 2Pt 3} molecules incorporating heteroligand Pt IV linkers. Dalton Trans 2021; 50:16242-16253. [PMID: 34730145 DOI: 10.1039/d1dt03071j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The interest in the generation of photoluminescence in lanthanide(III) single-molecule magnets (SMMs) is driven by valuable magneto-optical correlations as well as perspectives toward magnetic switching of emission and opto-magnetic devices linking SMMs with optical thermometry. In the pursuit of enhanced magnetic anisotropy and optical features, the key role is played by suitable ligands attached to the 4f metal ion. In this context, cyanido complexes of d-block metal ions, serving as expanded metalloligands, are promising. We report two novel discrete coordination systems serving as emissive SMMs, {[DyIII(H2O)3(tmpo)3]2[PtIVBr2(CN)4]3}·2H2O (1) and {[DyIII(H2O)(tmpo)4]2[PtIVBr2(CN)4]3}·2CH3CN (2) (tmpo = trimethylphosphine oxide), obtained by combining DyIII complexes with uncommon dibromotetracyanidoplatinate(IV) ions, [PtIVBr2(CN)4]2-. They are built of analogous Z-shaped cyanido-bridged {Dy2Pt3} molecules but differ in the coordination number of DyIII (C.N. = 8 in 1, C.N. = 7 in 2) and the number of coordinated tmpo ligands (three in 1, four in 2) which is related to the applied solvents. As a result, both compounds reveal DyIII-centred slow magnetic relaxation but only 1 shows SMM character at zero dc field, while 2 is a field-induced SMM. The relaxation dynamics in both systems is governed by the Raman relaxation mechanism. These effects were analysed using ac magnetic data and the results of the ab initio calculations with the support of magneto-optical correlations based on low-temperature high-resolution emission spectra. Our findings indicate that heteroligand halogeno-cyanido PtIV complexes are promising precursors for emissive SMMs with the further potential of sensitivity to external stimuli that may be related to the lability of the axially positioned halogeno ligands.
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Affiliation(s)
- Agnieszka Puzan
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-386 Kraków, Poland.
| | - Mikolaj Zychowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-386 Kraków, Poland.
| | - Junhao Wang
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Jakub J Zakrzewski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-386 Kraków, Poland.
| | - Mateusz Reczyński
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-386 Kraków, Poland. .,Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Szymon Chorazy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-386 Kraków, Poland.
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Zhang Q, Chen F, Shen X, He T, Qiu H, Yin S, Stang PJ. Self-Healing Metallacycle-Cored Supramolecular Polymers Based on a Metal-Salen Complex Constructed by Orthogonal Metal Coordination and Host-Guest Interaction with Amino Acid Sensing. ACS Macro Lett 2021; 10:873-879. [PMID: 35549186 DOI: 10.1021/acsmacrolett.1c00228] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A platinum(II) metallacycle-cored supramolecular network based on a metal-salen complex was successfully constructed by two orthogonal noncovalent interactions (host-guest interactions and metal coordination interactions). The obtained metallo-supramolecular polymer could further form gels when the concentration of metallacycle 1 was 160.0 mM. This gel exhibited multiple stimuli-responsive gel-sol phase transitions under different stimuli, such as temperature, competitive guests, etc. Moreover, it exhibited good self-healing properties and could be used as a turn-off sensor for thiol-containing amino acids.
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Affiliation(s)
- Qian Zhang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Feng Chen
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Xi Shen
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Tian He
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Huayu Qiu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Shouchun Yin
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, P. R. China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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Shen Y, Cosquer G, Zhang H, Breedlove BK, Cui M, Yamashita M. 4f-π Molecular Hybrid Exhibiting Rich Conductive Phases and Slow Relaxation of Magnetization. J Am Chem Soc 2021; 143:9543-9550. [PMID: 34156240 DOI: 10.1021/jacs.1c03748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cooperation between single-molecule magnets and electrical conductivity holds promise for preparing high-density magnetic devices; however, there are only a few reports so far. Here we report a 4f-π-based molecular hybrid, k-(ET)5Dy(NCS)7(KCl)0.5 (1) (ET = bis(ethylenedithio)tetrathiafulvalene, NCS- = thiocyanate), which undergoes slow relaxation of the magnetization and electrical conductivity. Unlike common ET-based conductive salts, K+ ions were intercalated into ET layers and coordinated with ET radicals. We found that the ET charges were sensitive to temperature, resulting in rich conductive phases at 75-300 K. In particular, the upturn in conductivity with a clear hysteresis loop was explained by the formation of partially oxidized states with charges close to 0.5+, which accounts for a metallic state. From the results of electronic structure calculations, the hole concentration increased to 125 K, which is consistent with a partially oxidized state upon cooling. The weak antiferromagnetic interactions accompanied by a dual magnetic relaxation process below 4 K are closely associated with the weak 4f-π interactions.
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Affiliation(s)
- Yongbing Shen
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Goulven Cosquer
- Research Group of Solid Material Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Haitao Zhang
- Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Mengxing Cui
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.,School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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Swain DK, Mallik G, Srivastava P, Kushwaha AK, Rajput P, Jha SN, Lim S, Kim S, Rath S. Single Mn Atom Doping in Chiral Sensitive Assembled Gold Clusters to Molecular Magnet. ACS NANO 2021; 15:6289-6295. [PMID: 33666080 DOI: 10.1021/acsnano.0c10260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chiral stirred optical and magnetic properties, through the doping of assembled ultrasmall metal clusters (AMCs), are promising discernment to rivet the molecule-like quantum devices. Here, the single manganese (Mn) atom doping and assembly of the gold cluster (Au8), leading to the chirality driven magnetism, has been achieved through a ligand-mediated growth. The X-ray absorption near edge structure and electron paramagnetic resonance studies corroborate the tetrahedral coordinated local structure of Mn dopant in the Au host. The optical and vibrational circular dichroic analysis affirms the modulation of chirality (negative to positive) in the presence of the Mn. A distinct ferromagnetic hysteresis loop at 300 K shows Mn ridden chiral sensitive ferromagnetism in contrary to the ligand influenced superparamagnetic undoped AMCs. The spin-polarized density functional theory level of calculations reveal the partial overlapping of spin-up and -down density of states in the doped AMCs, attributing to the ferromagnetic nature as like a molecular magnet suitable for the opto-spintronics application.
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Affiliation(s)
- Deepak K Swain
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul Jatni, 752050, India
| | - Gyanadeep Mallik
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul Jatni, 752050, India
| | - Pooja Srivastava
- Department of Physics, Amity University Uttar Pradesh, Lucknow, 226010, India
| | - Anoop K Kushwaha
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul Jatni, 752050, India
| | - Parasmani Rajput
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Shambhu N Jha
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Seokmin Lim
- Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Division of Nano and Information Technology, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Seungchul Kim
- Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Satchidananda Rath
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul Jatni, 752050, India
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New Radical Cation Salts Based on BDH-TTP Donor: Two Stable Molecular Metals with a Magnetic [ReF6]2− Anion and a Semiconductor with a [ReO4]− Anion. MAGNETOCHEMISTRY 2021. [DOI: 10.3390/magnetochemistry7040054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Three radical cation salts of BDH-TTP with the paramagnetic [ReF6]2− and diamagnetic [ReO4]− anions have been synthesized: κ-(BDH-TTP)4ReF6 (1), κ-(BDH-TTP)4ReF6·4.8H2O (2) and pseudo-κ″-(BDH-TTP)3(ReO4)2 (3). The crystal and band structures, as well as the conducting properties of the salts, have been studied. The structures of the three salts are layered and characterized by alternating κ-(1, 2) and κ″-(3) type organic radical cation layers with inorganic anion sheets. Similar to other κ-salts, the conducting layers in the crystals of 1 and 2 are formed by BDH-TTP dimers. The partial population of positions of Re atoms and disorder in the anionic layers of 1–3 are their distinctive features. Compounds 1 and 2 show the metallic character of conductivity down to low temperatures, while 3 is a semiconductor. The ac susceptibility of crystals 1 was investigated in order to test the possible slow relaxation of magnetization associated with the [ReF6]2− anion.
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Shen Y, Ito H, Zhang H, Yamochi H, Cosquer G, Herrmann C, Ina T, Yoshina SK, Breedlove BK, Otsuka A, Ishikawa M, Yoshida T, Yamashita M. Emergence of Metallic Conduction and Cobalt(II)-Based Single-Molecule Magnetism in the Same Temperature Range. J Am Chem Soc 2021; 143:4891-4895. [PMID: 33656871 DOI: 10.1021/jacs.1c00455] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-molecule magnets exhibit magnetic bistabililties at the molecular level, making them promising for molecule-based spintronics due to high magnetic densities. The incorporation of SMM behavior and electrical conductivity in one compound is rare because these two physical properties often do not operate in the same temperature range, which further hinders their use in practical applications. Here we present an organic-inorganic molecular hybrid, β″-(BEDO-TTF)3[Co(pdms)2]·(MeCN)(H2O)2 (BO3) (BEDO-TTF = bis(ethylenedioxy)tetrathiafulvalene and H2pdms = 1,2-bis(methanesulfonamido)benzene), which manifests both metallic conduction (electrical conductivity up to 1000 S cm-1 at 12 K under 2.0 gigapascal pressure) and SMM behavior in the temperature range 12-26 K for the first time.
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Affiliation(s)
- Yongbing Shen
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan
| | - Hiroshi Ito
- Department of Applied Physics, Nagoya University, Chikusa-ku, Nagoya 464-603, Japan
| | - Haitao Zhang
- Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Hideki Yamochi
- Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.,Research Center for Low Temperature and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan Chikusa-ku, Nagoya 464-603, Japan
| | - Goulven Cosquer
- Research Group of Solid Material Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima, 739-8526, Japan
| | - Carmen Herrmann
- Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
| | - Toshiaki Ina
- Spectroscopy and Imaging Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Sayou-gun, Hyogo 679-5198, Japan
| | - Shinji K Yoshina
- Department of Applied Physics, Nagoya University, Chikusa-ku, Nagoya 464-603, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan
| | - Akihiro Otsuka
- Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan.,Research Center for Low Temperature and Materials Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan Chikusa-ku, Nagoya 464-603, Japan
| | - Manabu Ishikawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takefumi Yoshida
- 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.,School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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Yamashita M. Next Generation Multifunctional Nano-Science of Advanced Metal Complexes with Quantum Effect and Nonlinearity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200257] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, P. R. China
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Brzozowska M, Handzlik G, Kurpiewska K, Zychowicz M, Pinkowicz D. Pseudo-tetrahedral vs. pseudo-octahedral Er III single molecule magnets and the disruptive role of coordinated TEMPO radical. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00262g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tetrahedral ErIII complexes are potential candidates for high-performance single molecule magnets (SMMs).
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Affiliation(s)
| | | | | | | | - Dawid Pinkowicz
- Jagiellonian University
- Faculty of Chemistry
- 30-387 Kraków
- Poland
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14
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Kushch ND, Kopotkov VA, Shilov GV, Akimov AV, Tokarev SV, Yagubskii EB, Zverev VN, Khasanov SS, Winter SM, Jeschke HO. Radical cation salts of BETS and ET with dicyanamidocuprate anions demonstrating metal-insulator and semiconductor–semiconductor transitions. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Shen Y, Ito H, Zhang H, Yamochi H, Katagiri S, Yoshina SK, Otsuka A, Ishikawa M, Cosquer G, Uchida K, Herrmann C, Yoshida T, Breedlove BK, Yamashita M. Simultaneous manifestation of metallic conductivity and single-molecule magnetism in a layered molecule-based compound. Chem Sci 2020; 11:11154-11161. [PMID: 34094356 PMCID: PMC8162363 DOI: 10.1039/d0sc04040a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Single-molecule magnets (SMMs) show superparamagnetic behaviour below blocking temperature at the molecular scale, so they exhibit large magnetic density compared to the conventional magnets. Combining SMMs and molecular conductors in one compound will bring about new physical phenomena, however, the synergetic effects between them still remain unexplored. Here we present a layered molecule-based compound, β′′-(BEDO-TTF)4 [Co(pdms)2]·3H2O (BO4), (BEDO-TTF (BO) and H2pdms are bis(ethylenedioxy)tetrathiafulvalene and 1,2-bis(methanesulfonamido)benzene, respectively), which was synthesized by using an electrochemical approach and studied by using crystal X-ray diffraction. This compound simultaneously exhibited metallic conductivity and SMM behaviour up to 11 K for the first time. The highest electrical conductivity was 400–650 S cm−1 at 6.5 K, which is the highest among those reported so far for conducting SMM materials. Furthermore, antiferromagnetic ordering occurred below 6.5 K, along with a decrease in conductivity, and the angle-independent negative magnetoresistance suggested an effective electron correlation between the conducting BO and Co(pdms)2 SMM layers (d–π interactions). The strong magnetic anisotropy and two-dimensional conducting plane play key roles in the low-temperature antiferromagnetic semiconducting state. BO4 is the first compound exhibiting antiferromagnetic ordering among SMMs mediated by π-electrons, demonstrating the synergetic effects between SMMs and molecular conductors. A metallic single-molecule magnet was synthesised demonstrating simultaneous metallic conduction and excellent SMM properties at the same temperature range for the first time, with potential applications in molecule-based quantum spintronics.![]()
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Affiliation(s)
- Yongbing Shen
- Department of Chemistry, Graduate School of Science, Tohoku University Sendai Japan
| | - Hiroshi Ito
- Department of Applied Physics, Nagoya University Chikusa-ku Nagoya 464-603 Japan
| | - Haitao Zhang
- Institute of Inorganic and Applied Chemistry, University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Hideki Yamochi
- Division of Chemistry, Graduate School of Science, Kyoto University Sakyo-ku Kyoto 606-8502 Japan.,Research Center for Low Temperature and Materials Sciences, Kyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Seiu Katagiri
- Department of Applied Physics, Nagoya University Chikusa-ku Nagoya 464-603 Japan
| | - Shinji K Yoshina
- Department of Applied Physics, Nagoya University Chikusa-ku Nagoya 464-603 Japan
| | - Akihiro Otsuka
- Division of Chemistry, Graduate School of Science, Kyoto University Sakyo-ku Kyoto 606-8502 Japan.,Research Center for Low Temperature and Materials Sciences, Kyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Manabu Ishikawa
- Division of Chemistry, Graduate School of Science, Kyoto University Sakyo-ku Kyoto 606-8502 Japan
| | - Goulven Cosquer
- Research Group of Solid Material Chemistry, Graduate School of Science, Hiroshima University 1-3-1 Kagamiyama, Higashihiroshima Hiroshima 739-8526 Japan
| | - Kaiji Uchida
- Department of Chemistry, Graduate School of Science, Tohoku University Sendai Japan
| | - Carmen Herrmann
- Institute of Inorganic and Applied Chemistry, University of Hamburg Martin-Luther-King-Platz 6 20146 Hamburg Germany
| | - Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University Sendai Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University Sendai Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University Sendai Japan .,School of Materials Science and Engineering, Nankai University Tianjin 300350 China
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16
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Structure and magnetic properties of a serendipitously synthesized copper(II) complex: [Cu(3-Br-2-pyone)6](ClO4)2. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-019-00375-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Shen Y, Cosquer G, Ito H, Izuogu DC, Thom AJW, Ina T, Uruga T, Yoshida T, Takaishi S, Breedlove BK, Li Z, Yamashita M. An Organic–Inorganic Hybrid Exhibiting Electrical Conduction and Single‐Ion Magnetism. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201910523] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yongbing Shen
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Goulven Cosquer
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
- Present address: Research Group of Solid Material Chemistry Graduate School of Science Hiroshima University 1-3-1 Kagamiyama, Higashihiroshima Hiroshima 739-8526 Japan
| | - Hiroshi Ito
- Department of Applied Physics Nagoya University Chikusa-ku Nagoya 464-603 Japan
| | - David C. Izuogu
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Department of Pure and Industrial Chemistry University of Nigeria Nsukka 410001 Enugu State Nigeria
| | - Alex J. W. Thom
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Toshiaki Ina
- Research & Utilization Division (Japan) Synchrotron Radiation Research Institute 1-1-1 Kouto, Sayo Sayou-gun Hyogo 679-5198 Japan
| | - Tomoya Uruga
- Research & Utilization Division (Japan) Synchrotron Radiation Research Institute 1-1-1 Kouto, Sayo Sayou-gun Hyogo 679-5198 Japan
| | - Takefumi Yoshida
- Electronic Functional Macromolecules Group National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Shinya Takaishi
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Brian K. Breedlove
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Zhao‐Yang Li
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
| | - Masahiro Yamashita
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
- WPI-Advanced Institute for Materials Research (AIMR) Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
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18
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Li JY, Tian YC, Feng LN, Zhou ZQ, Wang LL, Yang JH, Liu B. Enhancing magnetic hardness by sonication assisted synthesis of heterometallic carbonato spin-glass Na[Ni(H 2O) 4Ru 2(CO 3) 4]·3H 2O. Chem Commun (Camb) 2020; 56:1369-1372. [PMID: 31909399 DOI: 10.1039/c9cc07876b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Control of magnetic performances of molecular magnets is essential but few efforts have been documented. A green and efficient sonication assisted synthesis of a new heterometallic diruthenium(ii,iii) carbonate, Na[Ni(H2O)4Ru2(CO3)4]·3H2O (1), was carried out by self-assembling in aqueous solution. Compound 1 exhibits spin-glass behavior below ∼5.0 K, and a systematic investigation of the ultrasonic irradiation influence on the powder samples reveals that their coercivity increases from 50 Oe to 743 Oe with the control of ultrasonic power under appropriate conditions.
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Affiliation(s)
- Jing-Yu Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China.
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19
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Shen Y, Cosquer G, Ito H, Izuogu DC, Thom AJW, Ina T, Uruga T, Yoshida T, Takaishi S, Breedlove BK, Li Z, Yamashita M. An Organic–Inorganic Hybrid Exhibiting Electrical Conduction and Single‐Ion Magnetism. Angew Chem Int Ed Engl 2020; 59:2399-2406. [DOI: 10.1002/anie.201910523] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 11/08/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Yongbing Shen
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Goulven Cosquer
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
- Present address: Research Group of Solid Material Chemistry Graduate School of Science Hiroshima University 1-3-1 Kagamiyama, Higashihiroshima Hiroshima 739-8526 Japan
| | - Hiroshi Ito
- Department of Applied Physics Nagoya University Chikusa-ku Nagoya 464-603 Japan
| | - David C. Izuogu
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
- Department of Pure and Industrial Chemistry University of Nigeria Nsukka 410001 Enugu State Nigeria
| | - Alex J. W. Thom
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Toshiaki Ina
- Research & Utilization Division (Japan) Synchrotron Radiation Research Institute 1-1-1 Kouto, Sayo Sayou-gun Hyogo 679-5198 Japan
| | - Tomoya Uruga
- Research & Utilization Division (Japan) Synchrotron Radiation Research Institute 1-1-1 Kouto, Sayo Sayou-gun Hyogo 679-5198 Japan
| | - Takefumi Yoshida
- Electronic Functional Macromolecules Group National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Shinya Takaishi
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Brian K. Breedlove
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
| | - Zhao‐Yang Li
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
| | - Masahiro Yamashita
- Department of Chemistry Graduate School of Science Tohoku University 980-8578 Sendai Japan
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
- WPI-Advanced Institute for Materials Research (AIMR) Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
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20
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Coexistence of Metal Phthalocyanine and Fullerene C
60
Anions in Mixed {cryptand[2.2.2](Na
+
)}
x
(MPc)
–
x
‐1
·(C
60
)
–
Salts (M = Co
I
, V
IV
O,
x
= 2 and 1.5). Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Stefańczyk O, Ohkoshi SI. Humidity-A Powerful Tool to Customize the Physical Properties of Molecular Magnets. Chemistry 2019; 25:15963-15977. [PMID: 31617623 DOI: 10.1002/chem.201903586] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/29/2019] [Indexed: 01/24/2023]
Abstract
Since the dawn of the century, people have been fascinated by the mysterious force that draws two pieces of lodestone (magnetite, Fe3 O4 ) to each other as well as by property of stilbite (natural zeolite, NaCa4 [Si27 Al9 O72 ]⋅28 H2 O) to generate huge amounts of steam by rapidly heating the material. Nowadays, we know the first effect is addressed by magnetic attraction whereas the second one is related to the reversible sorption/desorption of water from humid air inside porous materials. For a long time, it was thought that these two, at first glance, were disjunctive properties that cannot be combined into one material. Nevertheless, the scientists have once again proved that there are no impossible things. Based on the discovery of the first molecular magnets, the idea to combine magnetic properties with other functionalities such as porosity gained great consideration by scientists from different research fields. Very soon, we witnessed numerous reports of novel multifunctional materials among which we can distinguish humidity-responsive magnets. In this manuscript, the most outstanding results for such systems working at normal temperature and pressure (NTP) will be presented to motivate in-depth research on this topic.
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Affiliation(s)
- Olaf Stefańczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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22
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Xin Y, Wang J, Zychowicz M, Zakrzewski JJ, Nakabayashi K, Sieklucka B, Chorazy S, Ohkoshi SI. Dehydration-Hydration Switching of Single-Molecule Magnet Behavior and Visible Photoluminescence in a Cyanido-Bridged Dy IIICo III Framework. J Am Chem Soc 2019; 141:18211-18220. [PMID: 31626543 DOI: 10.1021/jacs.9b09103] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Microporous magnets compose a class of multifunctional molecule-based materials where desolvation-driven structural transformation leads to the switching of magnetic properties. Herein, we present a special type of microporous magnet where a dehydration-hydration process within a bimetal coordination framework results in the switching of emissive DyIII single-molecule magnets (SMMs). We report a three-dimensional (3-D) cyanido-bridged coordination polymer, {[DyIII(H2O)2][CoIII(CN)6]}·2.2H2O (1), and its dehydrated form of {DyIII[CoIII(CN)6]} (2), which was obtained through a reversible single-crystal-to-single-crystal transformation. Both phases are composed of paramagnetic DyIII centers alternately arranged with diamagnetic hexacyanidocobaltates(III). The hydrated phase contains eight-coordinated [DyIII(μ-NC)6(H2O)2]3- complexes of a square antiprism geometry, while the dehydrated form contains six-coordinated [DyIII(μ-NC)6]3- moieties of a trigonal prism geometry. This change in coordination geometry results in the generation of DyIII single-molecule magnets in 2, whereas slow magnetic relaxation effect is not observed for DyIII sites in 1. The D4d-to-D3h symmetry change of DyIII complexes produces also the shift of photoluminescent color from nearly white to deep yellow thanks to the modulation of emission bands of f-f electronic transitions. A combined approach utilizing dc magnetic data and low-temperature emission spectra confirmed an axial crystal field of trigonal prismatic DyIII complexes in 2, which produces an Orbach type of slow magnetic relaxation. Therefore, we present a unique route to the efficient switching of SMM behavior and photoluminescence of DyIII complexes embedded in a 3-D cyanido-bridged framework.
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Affiliation(s)
- Yue Xin
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Junhao Wang
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Mikolaj Zychowicz
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Jakub J Zakrzewski
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Koji Nakabayashi
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
| | - Barbara Sieklucka
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Szymon Chorazy
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Kraków , Poland
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan
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23
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Chellali JE, Keely C, Bell G, Dimanno KL, Tran T, Landee CP, Dickie DA, Rademeyer M, Turnbull MM, Xiao F. Cobalt and zinc halide complexes of 4-chloro and 4-methylaniline: Syntheses, structures and magnetic behavior. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Komori-Orisaku K, Stefańczyk O, Ohishi S, Ozaki N, Miyamoto Y, Imoto K, Ohkoshi SI. Humidity-Induced Switching between Two Magnetic and Structural Phases in a Co II -[W V (CN) 8 ] Molecular Magnet. Chemistry 2019; 25:11066-11073. [PMID: 31148240 DOI: 10.1002/chem.201901790] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/28/2019] [Indexed: 11/10/2022]
Abstract
The self-assembly of cobalt(II) with purine and octacyanidotungstate(V) results in the formation of the three-dimensional Co3 [W(CN)8 ]2 (purine)2 ⋅8.5H2 O (1) coordination polymer. This compound exhibits humidity-induced variation of the number of water molecules of crystallisation leading to a reversible structural phase transition and the alternation of the long-range ferromagnetic ordering temperature from TC =29 K for the pristine assembly (1) to TC =49 K for the sample stored in a low-humidity atmosphere (1-deh). This phenomenon can be attributed to a reversible change in the hydrogen-bonding network resulting in the modification of the local geometries of cobalt(II) as well as the cyanido bridges.
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Affiliation(s)
- Keiko Komori-Orisaku
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Olaf Stefańczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Saori Ohishi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Noriaki Ozaki
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yasuto Miyamoto
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kenta Imoto
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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25
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Dale S, Bonanno NM, Pelaccia M, Lough AJ, Miyawaki A, Takahashi K, Lemaire MT. Ligand mixed-valence and electrical conductivity in coordination complexes containing a redox-active phenalenol-substituted ligand. Dalton Trans 2019; 48:8053-8056. [PMID: 31116216 DOI: 10.1039/c9dt01788g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A new redox-active hydrazone ligand bearing a phenalenol group is described (phpl), which produces neutral six-coordinate Fe and Co complexes (1 & 2) with the ligands identified in different oxidation states; an open-shell anion radical and closed-shell dianion. An intense and very low-energy intervalence charge transfer (IVCT) band is identified in solid-state and in solution in the complexes. Single crystals of 1 are semiconducting (at 300 K, σ = 3.05 × 10-4 S cm-1 with Ea = 245 meV).
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Affiliation(s)
- Sarah Dale
- Department of Chemistry, Brock University, St Catharines, Ontario L2S 3A1, Canada.
| | - Nico M Bonanno
- Department of Chemistry, Brock University, St Catharines, Ontario L2S 3A1, Canada.
| | - Mark Pelaccia
- Department of Chemistry, Brock University, St Catharines, Ontario L2S 3A1, Canada.
| | - Alan J Lough
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Atsuhiro Miyawaki
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe, Japan
| | - Kazuyuki Takahashi
- Department of Chemistry, Graduate School of Science, Kobe University, Kobe, Japan
| | - Martin T Lemaire
- Department of Chemistry, Brock University, St Catharines, Ontario L2S 3A1, Canada.
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26
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Kumar K, Stefańczyk O, Chorazy S, Nakabayashi K, Sieklucka B, Ohkoshi SI. Effect of Noble Metals on Luminescence and Single-Molecule Magnet Behavior in the Cyanido-Bridged Ln–Ag and Ln–Au (Ln = Dy, Yb, Er) Complexes. Inorg Chem 2019; 58:5677-5687. [DOI: 10.1021/acs.inorgchem.8b03634] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kunal Kumar
- Department of Chemistry, School of Science, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Olaf Stefańczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Szymon Chorazy
- Department of Chemistry, School of Science, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Koji Nakabayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Shin-ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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27
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Ke H, Wei W, Yang Y, Zhang J, Zhang YQ, Xie G, Chen S. Effect of coordination anion substitutions on relaxation dynamics of defect dicubane Zn2Dy2 tetranuclear clusters. Dalton Trans 2019; 48:7844-7852. [DOI: 10.1039/c9dt01074b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We showcase the coordination anion substitution effect on the relaxation dynamics of defect dicubane Zn2Dy2 tetranuclear clusters.
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Affiliation(s)
- 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 710069
- P. R. China
| | - Wen Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- P. R. China
| | - Yongsheng Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- P. R. China
| | - Jun Zhang
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- 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
| | - 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 710069
- P. R. 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 710069
- P. R. China
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28
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Zykin MA, Eliseev AA, Pogosova MA, Trusov LA, Schnelle W, Felser C, Jansen M, Kazin PE. Impact of fluoride for hydroxide substitution on the magnetic properties of a Co-based single-ion magnet imbedded in the barium apatite crystal lattice. CrystEngComm 2019. [DOI: 10.1039/c8ce02042f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The atomic group O–Co–O persists in the apatite channel and retains a high energy barrier for magnetization reversal.
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Affiliation(s)
- Mikhail A. Zykin
- Department of Materials Science
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Artem A. Eliseev
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Mariam A. Pogosova
- Center for Electrochemical Energy Storage
- Skolkovo Institute of Science and Technology
- 121205 Moscow
- Russia
| | - Lev A. Trusov
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
| | - Walter Schnelle
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - Claudia Felser
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - Martin Jansen
- Max Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
- Max Planck Institute for Solid State Research
- 70569 Stuttgart
| | - Pavel E. Kazin
- Department of Chemistry
- Lomonosov Moscow State University
- 119991 Moscow
- Russia
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29
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Biswas S, Mandal L, Shen Y, Yamashita M. Exploration of SMM behavior of Ln2 complexes derived from thianaphthene-2-carboxylic acid. Dalton Trans 2019; 48:14096-14102. [DOI: 10.1039/c9dt01984g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Observations were made of field-induced SMM property of a dysprosium-based dinuclear complex derived from thianaphthene-2-carboxylic acid ligand.
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Affiliation(s)
- Soumava Biswas
- WPI Research Center
- Advanced Institute for Materials Research
- Tohoku University
- Sendai 980-8577
- Japan
| | - Leena Mandal
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Yongbing Shen
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Masahiro Yamashita
- WPI Research Center
- Advanced Institute for Materials Research
- Tohoku University
- Sendai 980-8577
- Japan
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