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Komeda J, Boudalis AK, Montenegro-Pohlhammer N, Antheaume C, Mizuno A, Turek P, Ruben M. Selective Transition Enhancement in a g-Engineered Diradical. Chemistry 2024; 30:e202400420. [PMID: 38563635 DOI: 10.1002/chem.202400420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
A diradical with engineered g-asymmetry was synthesized by grafting a nitroxide radical onto the [Y(Pc)2]⋅ radical platform. Various spectroscopic techniques and computational studies revealed that the electronic structures of the two spin systems remained minimally affected within the diradical system. Fluid-solution Electron Paramagnetic Resonance (EPR) experiments revealed a weak exchange coupling with |J| ~ 0.014 cm-1, subsequently rationalized by CAS-SCF calculations. Frozen solution continuous-wave (CW) EPR experiments showed a complicated and power-dependent spectrum that eluded analysis using the point-dipole model. Pulse EPR manipulations with varying microwave powers, or under varying magnetic fields, demonstrated that different resonances could be selectively enhanced or suppressed, based on their different tipping angles. In particular, Field-Swept Echo-Detected (FSED) spectra revealed absorptions of MW power-dependent intensities, while Field-Swept Spin Nutation (FSSN) experiments revealed two distinct Rabi frequencies. This study introduces a methodology to synthesize and characterize g-asymmetric two-spin systems, of interest in the implementation of spin-based CNOT gates.
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Affiliation(s)
- Joe Komeda
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Athanassios K Boudalis
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081, Strasbourg, France
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
| | - Nicolas Montenegro-Pohlhammer
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, 8370854, Chile
| | - Cyril Antheaume
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
| | - Asato Mizuno
- Division of Chemistry, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Philippe Turek
- Institut de Chimie de Strasbourg (UMR 7177, CNRS-Unistra), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, F-67081, Strasbourg, France
| | - Mario Ruben
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Centre Européen de Sciences Quantiques (CESQ) within the, Institut de Science et d'Ingénierie Suparamolaiculaires - ISIS, 8 allée Gaspard Monge, BP 70028, F-67083, Strasbourg Cedex, France
- Institute of Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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2
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Kobayashi K, Suzuki M, Sato T, Horii Y, Yoshida T, Breedlove BK, Yamashita M, Katoh K. Spin dynamics phenomena of a cerium(III) double-decker complex induced by intramolecular electron transfer. Dalton Trans 2024; 53:11664-11677. [PMID: 38651377 DOI: 10.1039/d4dt00436a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Switchable spin dynamic properties in single-molecule magnets (SMMs) via an applied stimulus have applications in single-molecule devices. Many SMMs containing heavy lanthanoid ions with strong uniaxial magnetic anisotropy have been reported to exhibit SMM characteristics in the absence of an external magnetic field. On the other hand, SMMs containing light lanthanoid cerium(III) (Ce3+) ions exhibit field-induced slow magnetic relaxation. We investigated the chemical conversion of a diamagnetic Ce4+ ion (4f0) to a paramagnetic Ce3+ ion (4f1) in Ce-phthalocyaninato double-decker complexes (TBA+[Ce(obPc)2]- (1) and TBA+[Ce(Pc)2]- (2)) which exhibit field-induced SMM behaviour due to a 4f1 system. The phthalocyaninato ligands with electron-donating substituents (obPc2- = 2,3,9,10,16,17,23,24-octabutoxyphthalocyaninato) in 1 have a significant effect on the valence state of the Ce ion, which is reflected in its magnetic properties due to the mixed valence state of the Ce ion. Given that Ce double-decker complexes with π-conjugated ligands undergo intramolecular electron transfer (IET) to the Ce ion mixed valence state, characterised by a mixture of 4f0 and 4f1 configurations, we examined the dynamic disorder inherent in IET influencing magnetic relaxation.
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Affiliation(s)
- Kana Kobayashi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Michiyuki Suzuki
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tetsu Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yoji Horii
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya Higashimachi, Nara 630-8506, Japan
| | - Takefumi Yoshida
- Cluster of Nanomaterials, Graduate School of Systems Engineering, Wakayama University, 930 Sakae-Dani, Wakayama, 640-8510, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - 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 Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, P. R. China
| | - Keiichi Katoh
- Department of Chemistry, Graduate School of Science, Josai University, 1-1, Keyakidai, Sakaddo, Saitama 350-0295, Japan.
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3
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Sinelshchikova AA, Lapkina LA, Larchenko VE, Dorovatovskii PV, Tsivadze AY, Gorbunova YG. Unexpected Supramolecular-Induced Redox Switching in Sandwich Gd Bisphthalocyaninate. Inorg Chem 2024; 63:8163-8170. [PMID: 38662752 DOI: 10.1021/acs.inorgchem.4c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
The redox state of the phthalocyanine in sandwich lanthanide complexes is crucial for their applications. In this work, we demonstrate that the cation-induced supramolecular assembly of crown-substituted phthalocyanine lanthanide complexes Ln[(15C5)4Pc]2 can be used to control the redox state of the ligand simultaneously with the coordination sphere of the central metal. We achieve unprecedented redox switching of phthalocyanine ligands in a double-decker Gd(III) complex, resulting from the intramolecular inclusion of potassium cations between the decks with simultaneous twisting of the ligands (the skew angle between them decreases from 44.61 to 0.21°). Such a structural change leads to an increase in the deck-to-deck distance and drastically facilitates ligand reduction. This process was shown to be anion-dependent: only potassium salts of weak acids (KOPiv and KOAc) induce intramolecular inclusion of cations with redox switching in contrast to salts of strong acids (KBr, KOPic, KSCN, and KPF6), where such a redox process does not occur. This breakthrough opens new avenues for controlling the electrochromic properties, of phthalocyanines, along with other properties, such as electrical conductivity, optics, etc.
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Affiliation(s)
- Anna A Sinelshchikova
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Building 4, Moscow 119071, Russia
| | - Lyudmila A Lapkina
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leniskii pr. 31, Moscow 119991, Russia
| | - Vladimir E Larchenko
- JSC Fine Chemicals R&D Center, Krasnobogatyrskaya 42, Building 1, Moscow 107258, Russia
| | - Pavel V Dorovatovskii
- National Research Center "Kurchatov Institute", Kurchatov Square 1, Moscow 123182, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Building 4, Moscow 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leniskii pr. 31, Moscow 119991, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Building 4, Moscow 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leniskii pr. 31, Moscow 119991, Russia
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4
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Martynov AG, Birin KP, Kirakosyan GA, Gorbunova YG, Tsivadze AY. Site-Selective Solvation-Induced Conformational Switching of Heteroleptic Heteronuclear Tb(III) and Y(III) Trisphthalocyaninates for the Control of Their Magnetic Anisotropy. Molecules 2023; 28:molecules28114474. [PMID: 37298954 DOI: 10.3390/molecules28114474] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
In the present work, we report the synthesis of isomeric heteronuclear terbium(III) and yttrium(III) triple-decker phthalocyaninates [(BuO)8Pc]M[(BuO)8Pc]M*[(15C5)4Pc] (M = Tb, M* = Y or M = Y, M* = Tb, [(BuO)8Pc]2--octa-n-butoxyphthalocyaninato-ligand, [(15C5)4Pc]2--tetra-15-crown-5-phthalocyaninato-ligand). We show that these complexes undergo solvation-induced switching: the conformers in which both metal centers are in square-antiprismatic environments are stabilized in toluene, whereas in dichloromethane, the metal centers M and M* are in distorted prismatic and antiprismatic environments, respectively. This conclusion follows from the detailed analysis of lanthanide-induced shifts in 1H NMR spectra, which makes it possible to extract the axial component of the magnetic susceptibility tensor χaxTb and to show that this term is particularly sensitive to conformational switching when terbium(III) ion is placed in the switchable "M" site. This result provides a new tool for controlling the magnetic properties of lanthanide complexes with phthalocyanine ligands.
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Affiliation(s)
- Alexander G Martynov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
| | - Kirill P Birin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
| | - Gayane A Kirakosyan
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr., 31, Building 4, 119071 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr., 31, 119991 Moscow, Russia
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5
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Wang J, Sun CY, Zheng Q, Wang DQ, Chen YT, Ju JF, Sun TM, Cui Y, Ding Y, Tang YF. Lanthanide Single-molecule Magnets: Synthetic Strategy, Structures, Properties and Recent Advances. Chem Asian J 2023; 18:e202201297. [PMID: 36802202 DOI: 10.1002/asia.202201297] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/30/2023] [Accepted: 02/20/2023] [Indexed: 02/23/2023]
Abstract
Single-molecule magnets (SMMs) show wide potential applications in the field of ultrahigh-density storage materials, quantum computing, spintronics, and so on. Lanthanide (Ln) SMMs, as an important category of SMMs, open up a promising prospect due to their large magnetic moments and huge magnetic anisotropy. However, the construction of high performance for Ln SMMs remains an enormous challenge. Although remarkable advances are focused on the topic of Ln SMMs, the research on Ln SMMs with different nuclear numbers is still deficient. Therefore, this review summarizes the design strategies for the construction of Ln SMMs, as well as the metal skeleton types. Furthermore, we collect reported Ln SMMs with mononuclearity, dinuclearity, and multinuclearity (three or more Ln spin centers) and the SMM properties including energy barrier (Ueff ) and pre-exponential factor (τ0 ) are described. Finally, Ln SMMs with low-nuclearity SMMs, especially for single-ion magnets (SIMs), are highlighted to understand the correlations between structures and magnetic behavior of the detail SMM properties are described. We expect the review can shed light on the future developments of high-performance Ln SMMs.
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Affiliation(s)
- Jin Wang
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China.,Nantong Key Lab of Intelligent and New Energy Materials, Nantong, Jiangsu 226019, P. R. China
| | - Cheng-Yuan Sun
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Qi Zheng
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Dan-Qi Wang
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Yu-Ting Chen
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Jian-Feng Ju
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Tong-Ming Sun
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Ying Cui
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Yan Ding
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China
| | - Yan-Feng Tang
- School of Chemistry and Chemical Engineering, Nantong University, Jiangsu, 226019, P. R. China.,Nantong Key Lab of Intelligent and New Energy Materials, Nantong, Jiangsu 226019, P. R. China
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6
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Singh V, Das D, Anga S, Sutter JP, Chandrasekhar V, Bar AK. Rigid N 3O 2-Pentadentate Ligand-Assisted Octacoordinate Mononuclear Ln(III) Complexes: Syntheses, Characterization, and Slow Magnetization Relaxation. ACS OMEGA 2022; 7:25881-25890. [PMID: 35910178 PMCID: PMC9330846 DOI: 10.1021/acsomega.2c03631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A series of air-stable mononuclear octacoordinate Ln(III) complexes, [(L)Ln(TPPO)3]OTf (Ln = Y (1·Y); Gd (1·Gd); Tb (1·Tb); Dy (1·Dy); Ho (1·Ho); and Er (1·Er)) and [(L)Ln(TPPO)(NO3)] (Ln = Y (2·Y) and Dy (2·Dy)), are synthesized employing a rigid N3O2-pentadentate chelating ligand as the basis ligand and meridional ancillary ligands (where H2L = 2,6-diacetylpyridine bis-benzoylhydrazone, TPPO = triphenylphosphine oxide, and OTf- = trifluoromethanesulfonate). All the complexes are synthesized under aerobic conditions and characterized comprehensively by spectroscopic and X-ray crystallographic techniques. Magnetic property investigation on the polycrystalline solid samples of 1·Ln (Ln = Gd, Tb, Dy, Ho, and Er) and 2·Dy are reported. A field-induced single-molecule magnet behavior was observed for the Dy derivatives. 1·Dy exhibits the highest effective energy barrier of magnetization reversal, U eff/k B = 47 K under H dc = 1 kOe among the complexes presented herein.
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Affiliation(s)
- Vaibhav Singh
- Indian
Institute of Science Education and Research Tirupati, Tirupati 517507 AP, India
| | - Dhiraj Das
- Indian
Institute of Science Education and Research Tirupati, Tirupati 517507 AP, India
| | - Srinivas Anga
- Tata
Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad 500107, India
| | - Jean-Pascal Sutter
- Laboratoire
de Chimie de Coordination Du CNRS (LCC-CNRS), Université de Toulouse, CNRS, Toulouse 31062, France
| | | | - Arun Kumar Bar
- Indian
Institute of Science Education and Research Tirupati, Tirupati 517507 AP, India
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7
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Martynov AG, Horii Y, Katoh K, Bian Y, Jiang J, Yamashita M, Gorbunova YG. Rare-earth based tetrapyrrolic sandwiches: chemistry, materials and applications. Chem Soc Rev 2022; 51:9262-9339. [DOI: 10.1039/d2cs00559j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review summarises advances in chemistry of tetrapyrrole sandwiches with rare earth elements and highlights the current state of their use in single-molecule magnetism, organic field-effect transistors, conducting materials and nonlinear optics.
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Affiliation(s)
- Alexander G. Martynov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071, Leninskiy pr., 31, bldg.4, Moscow, Russia
| | - Yoji Horii
- Department of Chemistry, Faculty of Science, Nara Women's University, Nara 630-8506, Japan
| | - Keiichi Katoh
- Department of Chemistry, Graduate School of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Yongzhong Bian
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
- Daxing Research Institute, and Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, China
| | - Jianzhuang Jiang
- Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
- Daxing Research Institute, and Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, China
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
| | - Yulia G. Gorbunova
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071, Leninskiy pr., 31, bldg.4, Moscow, Russia
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Leninskiy pr., 31, Moscow, Russia
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8
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Shokurov AV, Yagodin AV, Martynov AG, Gorbunova YG, Tsivadze AY, Selektor SL. Octopus-Type Crown-Bisphthalocyaninate Anchor for Bottom-Up Assembly of Supramolecular Bilayers with Expanded Redox-Switching Capability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104306. [PMID: 34655166 DOI: 10.1002/smll.202104306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Achievement of information storage at molecular level remains a pressing task in miniaturization of computing technology. One of the promising approaches for its practical realization is development of nanoscale molecular switching materials including redox-active systems. The present work demonstrates a concept of expansion of a number of available redox-states of self-assembled monolayers through supramolecular approach. For this, the authors synthesized an octopus-like heteroleptic terbium(III) bisphthalocyaninate bearing one ligand with eight thioacetate-terminated "tentacles" (octopus-Pc) and a ligand with four crown-ether moieties (H2 [(15C5)4 Pc]). It is shown that octopus-Pc forms stable monolayers on gold, where its face-on orientation allows for subsequent binding of crown-phthalocyanine molecules via potassium ion bridges. This chemistry is utilized to form a heterogeneous bilayer, in which a single molecule thick adlayer brings an additional redox-state to the system, thus expanding the multistability of the system as a whole. All four redox states available to this system exhibit characteristic absorbance in visible range, allowing for the switching to be easily read out using optical density measurements. The proposed approach can be used in wide range of switchable materials-single-molecule magnets, conductive, and optical devices, etc.
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Affiliation(s)
- Alexander V Shokurov
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
| | - Alexey V Yagodin
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
| | - Alexander G Martynov
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky pr. 31, Moscow, 119991, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Leninsky pr. 31, Moscow, 119991, Russia
| | - Sofiya L Selektor
- Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow, 119071, Russia
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9
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Sato T, Breedlove BK, Yamashita M, Katoh K. Electro‐Conductive Single‐Molecule Magnet Composed of a Dysprosium(III)‐Phthalocyaninato Double‐Decker Complex with Magnetoresistance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tetsu Sato
- 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
| | - 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 P. R. China
| | - Keiichi Katoh
- Department of Chemistry Graduate School of Science Josai University 1-1 Keyakidai, Sakado Saitama 350-0295 Japan
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10
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Bovkunova AA, Bazhina ES, Evstifeev IS, Nelyubina YV, Shmelev MA, Babeshkin KA, Efimov NN, Kiskin MA, Eremenko IL. Two types of Ln 2Cu 2 hydroxo-trimethylacetate complexes with 0D and 1D motifs: synthetic features, structural differences, and slow magnetic relaxation. Dalton Trans 2021; 50:12275-12286. [PMID: 34519732 DOI: 10.1039/d1dt01161h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two series of heterometallic LnIII-CuII compounds containing a butterfly-like tetranuclear metal core were synthesized and characterized by X-ray diffraction and magnetometry. The structures of the new compounds were shown to depend on the nature of the hydroxide used for the synthesis. The reactions of copper(II) and lanthanide(III) salts with Hpiv (Hpiv is trimethylacetic acid) and LiOH in a MeCN-EtOH mixture afford the molecular complexes [Ln2Cu2(μ3-OH)2(piv)8(H2O)4]·4EtOH (1Ln, Ln = Gd, Tb, Dy, Ho, Yb), whereas the similar reactions using NaOH instead of LiOH give the 1D coordination polymers [Na2Ln2Cu2(μ3-OH)2(piv)10(EtOH)2]·EtOH (2Ln, Ln = Gd, Tb, Dy, Ho, Yb). According to ac susceptibility measurements, the DyIII-CuII compounds (1Dy and 2Dy) exhibit slow relaxation of magnetization indicative of single-molecule magnet (SMM) behavior. In the series of YbIII-CuII compounds, only complex 2Yb shows frequency-dependent out-of-phase ac susceptibility signals. This is the first reported example of carboxylate-based YbIII-CuII compound displaying slow magnetic relaxation.
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Affiliation(s)
- Anna A Bovkunova
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Evgeniya S Bazhina
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Igor S Evstifeev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova st. 28, Moscow 119991, Russia
| | - Maxim A Shmelev
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Konstantin A Babeshkin
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Nikolay N Efimov
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Mikhail A Kiskin
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia.
| | - Igor L Eremenko
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prosp. 31, Moscow 119991, Russia. .,A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova st. 28, Moscow 119991, Russia
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11
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Antipin IS, Alfimov MV, Arslanov VV, Burilov VA, Vatsadze SZ, Voloshin YZ, Volcho KP, Gorbatchuk VV, Gorbunova YG, Gromov SP, Dudkin SV, Zaitsev SY, Zakharova LY, Ziganshin MA, Zolotukhina AV, Kalinina MA, Karakhanov EA, Kashapov RR, Koifman OI, Konovalov AI, Korenev VS, Maksimov AL, Mamardashvili NZ, Mamardashvili GM, Martynov AG, Mustafina AR, Nugmanov RI, Ovsyannikov AS, Padnya PL, Potapov AS, Selektor SL, Sokolov MN, Solovieva SE, Stoikov II, Stuzhin PA, Suslov EV, Ushakov EN, Fedin VP, Fedorenko SV, Fedorova OA, Fedorov YV, Chvalun SN, Tsivadze AY, Shtykov SN, Shurpik DN, Shcherbina MA, Yakimova LS. Functional supramolecular systems: design and applications. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr5011] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Sato T, Breedlove BK, Yamashita M, Katoh K. Electro‐Conductive Single‐Molecule Magnet Composed of a Dysprosium(III)‐Phthalocyaninato Double‐Decker Complex with Magnetoresistance. Angew Chem Int Ed Engl 2021; 60:21179-21183. [DOI: 10.1002/anie.202102666] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/05/2021] [Indexed: 01/10/2023]
Affiliation(s)
- Tetsu Sato
- 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
| | - 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 P. R. China
| | - Keiichi Katoh
- Department of Chemistry Graduate School of Science Josai University 1-1 Keyakidai, Sakado Saitama 350-0295 Japan
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13
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Martynov AG, Polovkova MA, Berezhnoy GS, Sinelshchikova AA, Khrustalev VN, Birin KP, Kirakosyan GA, Gorbunova YG, Tsivadze AY. Heteroleptic Crown-Substituted Tris(phthalocyaninates) as Dynamic Supramolecular Scaffolds with Switchable Rotational States and Tunable Magnetic Properties. Inorg Chem 2021; 60:9110-9121. [PMID: 34076429 DOI: 10.1021/acs.inorgchem.1c01100] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herein we report single-crystal X-ray diffraction characterization and complementary solution studies of supramolecular interaction between potassium salts and heteroleptic homo- and heteronuclear triple-decker crown phthalocyaninates [(15C5)4Pc]M*[(15C5)4Pc]M(Pc) or [M*,M], where M* and M = Y and/or Tb. Our results evidence that, in contrast to the previously studied crown-substituted phthalocyanines, the interaction of K+ cations with [M*,M] does not induce their intermolecular aggregation. Instead, the cations reversibly intercalate between the crown-substituted phthalocyanine ligands, resulting in switching of the coordination polyhedron of the metal center M* from square-antiprismatic to square-prismatic. In the case of terbium(III) complexes, such a switching alters their magnetic properties, which can be read-out by 1H NMR spectroscopy. For [Tb*,Y], such a switching causes an almost 25% increase in the axial component of the magnetic susceptibility tensor. Even though the polyhedron of the paramagnetic center in [Y*,Tb] is not switched, minor structural perturbations associated with the overall reorganization of the receptor also cause smaller, but nevertheless appreciable, growth of the axial anisotropy. The observed effects render the studied complexes as molecular switches with tunable magnetic properties.
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Affiliation(s)
- Alexander G Martynov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Marina A Polovkova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Georgy S Berezhnoy
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Anna A Sinelshchikova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Victor N Khrustalev
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay St. 6, Moscow 117198, Russia.,Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, Moscow 119991, Russia
| | - Kirill P Birin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Gayane A Kirakosyan
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
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14
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Gorbunova YG, Martynov AG, Birin KP, Tsivadze AY. NMR Spectroscopy—A Versatile Tool for Studying the Structure and Magnetic Properties of Paramagnetic Lanthanide Complexes in Solutions (Review). RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621020091] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Synthesis of Bis{ meso-Tetrakis(4- N-alkylpyridiniumyl)porphyrinato}cerium and Its Redox Switching Behavior. Molecules 2021; 26:molecules26040790. [PMID: 33546465 PMCID: PMC7913613 DOI: 10.3390/molecules26040790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 11/16/2022] Open
Abstract
A novel double-decker porphyrin complex, bis{meso-tetrakis(4-N-alkylpyridiniumyl)porphyrinato}cerium, was prepared. Electrochemical measurements revealed that this complex exhibited reversible redox waves corresponding to a 1e– redox reaction of the cerium center. Treating the complex alternately with an oxidant and a reductant resulted in the reversible redox switching between the oxidized and reduced states in an organic solvent.
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16
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Wang J, Li Q, Wu S, Chen Y, Wan R, Huang G, Liu Y, Liu J, Reta D, Giansiracusa MJ, Wang Z, Chilton NF, Tong M. Opening Magnetic Hysteresis by Axial Ferromagnetic Coupling: From Mono‐Decker to Double‐Decker Metallacrown. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014993] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jin Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Quan‐Wen Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Si‐Guo Wu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Yan‐Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Rui‐Chen Wan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Guo‐Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Yang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Jun‐Liang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Daniel Reta
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
| | | | - Zhen‐Xing Wang
- Wuhan National High Magnetic Center Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Nicholas F. Chilton
- Department of Chemistry The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Ming‐Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
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17
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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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18
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Wang J, Li QW, Wu SG, Chen YC, Wan RC, Huang GZ, Liu Y, Liu JL, Reta D, Giansiracusa MJ, Wang ZX, Chilton NF, Tong ML. Opening Magnetic Hysteresis by Axial Ferromagnetic Coupling: From Mono-Decker to Double-Decker Metallacrown. Angew Chem Int Ed Engl 2021; 60:5299-5306. [PMID: 33216437 DOI: 10.1002/anie.202014993] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 02/03/2023]
Abstract
Combining Ising-type magnetic anisotropy with collinear magnetic interactions in single-molecule magnets (SMMs) is a significant synthetic challenge. Herein we report a Dy[15-MCCu -5] (1-Dy) SMM, where a DyIII ion is held in a central pseudo-D5h pocket of a rigid and planar Cu5 metallacrown (MC). Linking two Dy[15-MCCu -5] units with a single hydroxide bridge yields the double-decker {Dy[15-MCCu -5]}2 (2-Dy) SMM where the anisotropy axes of the two DyIII ions are nearly collinear, resulting in magnetic relaxation times for 2-Dy that are approximately 200 000 times slower at 2 K than for 1-Dy in zero external field. Whereas 1-Dy and the YIII -diluted Dy@2-Y analogue do not show remanence in magnetic hysteresis experiments, the hysteresis data for 2-Dy remain open up to 6 K without a sudden drop at zero field. In conjunction with theoretical calculations, these results demonstrate that the axial ferromagnetic Dy-Dy coupling suppresses fast quantum tunneling of magnetization (QTM). The relaxation profiles of both complexes curiously exhibit three distinct exponential regimes, and hold the largest effective energy barriers for any reported d-f SMMs up to 625 cm-1 .
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Affiliation(s)
- Jin Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Quan-Wen Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Si-Guo Wu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Rui-Chen Wan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jun-Liang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Daniel Reta
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Marcus J Giansiracusa
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Zhen-Xing Wang
- Wuhan National High Magnetic Center, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Nicholas F Chilton
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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19
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Babeshkin KA, Gavrikov AV, Petrosyants SP, Ilyukhin AB, Belova EV, Efimov NN. Unexpected Supremacy of Non‐Dysprosium Single‐Ion Magnets within a Series of Isomorphic Lanthanide Cyanocobaltate(III) Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000798] [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)
- Konstantin A. Babeshkin
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Andrey V. Gavrikov
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Svetlana P. Petrosyants
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Andrey B. Ilyukhin
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Ekaterina V. Belova
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
- Department of Chemistry Lomonosov Moscow State University GSP1 119991 Moscow Russian Federation
| | - Nikolay N. Efimov
- N.S. Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
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20
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Martynov AG, Polovkova MA, Berezhnoy GS, Sinelshchikova AA, Dolgushin FM, Birin KP, Kirakosyan GA, Gorbunova YG, Tsivadze AY. Cation-Induced Dimerization of Heteroleptic Crown-Substituted Trisphthalocyaninates as Revealed by X-ray Diffraction and NMR Spectroscopy. Inorg Chem 2020; 59:9424-9433. [DOI: 10.1021/acs.inorgchem.0c01346] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander G. Martynov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Marina A. Polovkova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Georgy S. Berezhnoy
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Anna A. Sinelshchikova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Fedor M. Dolgushin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Moscow, Vavilova str. 28, Moscow 119991, Russia
| | - Kirill P. Birin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - Gayane A. Kirakosyan
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Yulia G. Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
| | - Aslan Yu. Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky pr. 31, Moscow 119991, Russia
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21
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Katoh K, Yasuda N, Damjanović M, Wernsdorfer W, Breedlove BK, Yamashita M. Manipulation of the Coordination Geometry along the C 4 Rotation Axis in a Dinuclear Tb 3+ Triple-Decker Complex via a Supramolecular Approach. Chemistry 2020; 26:4805-4815. [PMID: 31984579 DOI: 10.1002/chem.201905400] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/21/2020] [Indexed: 01/02/2023]
Abstract
A supramolecular complex (1⋅C60 ) was prepared by assembling (C60-Ih)[5,6]fullerene (C60 ) with the dinuclear Tb3+ triple-decker complex [(TPP)Tb(Pc)Tb(TPP)] (1: Tb3+ =trivalent terbium ion, Pc2- =phthalocyaninato, TPP2- =tetraphenylporphyrinato) with quasi-D4h symmetry to investigate the relationship between the coordination symmetry and single-molecule magnet (SMM) properties. Tb3+ -Pc triple-decker complexes (Tb2 Pc3 ) have an important advantage over Tb3+ -Pc double-decker complexes (TbPc2 ) since the magnetic relaxation processes correspond to the Zeeman splitting when there are two 4f spin systems. The two Tb3+ sites of 1 are equivalent, and the twist angle (φ) was determined to be 3.62°. On the other hand, the two Tb3+ sites of 1⋅C60 are not equivalent. The φ values for sites Tb1 and Tb2 were determined to be 3.67° and 33.8°, respectively, due to a change in the coordination symmetry of 1 upon association with C60 . At 1.8 K, 1 and 1⋅C60 undergo different magnetic relaxations, and the changes in the ground state affect the spin dynamics. Although 1 and 1⋅C60 relax via QTM in a zero applied magnetic field (H), H dependencies of the magnetic relaxation times (τ) for H>1500 Oe are similar. On the other hand, for H<1500 Oe, the τ values have different behaviors since the off-diagonal terms ( B k q ; q ≠ 0 ) affect the magnetic relaxation mechanism. From temperature (T) and H dependences of τ, spin-phonon interactions along with direct and Raman mechanisms explain the spin dynamics. We believe that a supramolecular method can be used to control the magnetic anisotropy along the C4 rotation axis and the spin dynamic properties in dinuclear Ln3+ -Pc multiple-decker complexes.
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Affiliation(s)
- Keiichi Katoh
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Nobuhiro Yasuda
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Marko Damjanović
- Institute of Nanotechnology, KIT, 76344, Eggenstein-Leopoldshafen, Germany
| | - Wolfgang Wernsdorfer
- Institute of Nanotechnology, KIT, 76344, Eggenstein-Leopoldshafen, Germany.,Physikalisches Institut, KIT, Wolfgang-Gaede-Str. 1, 76131, Karlsruhe, Germany.,Institut Néel, CNRS, 38042, Grenoble, France
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8578, Japan.,WPI Research Center, Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan.,School of Materials Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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22
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Ke H, Yang Y, Wei W, Jiang Y, Zhang YQ, Xie G, Chen S. Synergistic effect of mixed ligands on the anisotropy axis of two dinuclear dysprosium complexes. Dalton Trans 2020; 49:10594-10602. [DOI: 10.1039/d0dt02139c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the synergistic effect of mixed ligands on the anisotropy axis of two dinuclear dysprosium complexes.
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Affiliation(s)
- Hongshan Ke
- Key Laboratory of Synthetic and Natural Functional Molecule of the 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 of the 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 of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- P. R. China
| | - Youdong Jiang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- 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 of the 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 of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- P. R. China
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23
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Martynov AG, Safonova EA, Tsivadze AY, Gorbunova YG. Functional molecular switches involving tetrapyrrolic macrocycles. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Coban MB. Magnetic and photophysical properties of new TbIII –based two-dimensional hydrogen-bonded polymer. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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25
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Ji XQ, Ma F, Xiong J, Yang J, Sun HL, Zhang YQ, Gao S. A rare chloride-bridged dysprosium chain with slow magnetic relaxation: a thermally activated mechanism via a second-excited state promoted by magnetic interactions. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01331d] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Magnetic interactions induced by chloride bridges promote the slow magnetic relaxation in a dysprosium chain to pass through the second-excited state.
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Affiliation(s)
- Xiao-Qin Ji
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Fang Ma
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Jin Xiong
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Jing Yang
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Hao-Ling Sun
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials
- Beijing Normal University
- Beijing 100875
- 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
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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26
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Safonova EA, Polovkova MA, Martynov AG, Gorbunova YG, Tsivadze AY. Crown-substituted naphthalocyanines: synthesis and supramolecular control over aggregation and photophysical properties. Dalton Trans 2018; 47:15226-15231. [PMID: 30321250 DOI: 10.1039/c8dt03661f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetra-15-crown-5-naphthalocyanines as first representatives of crown-substituted π-extended phthalocyanines were synthesized and characterized. The possibility to control their aggregation and photophysical properties by reversible formation of supramolecular assemblies in the presence of KOAc was demonstrated.
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Affiliation(s)
- Evgeniya A Safonova
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, bldg 4, Moscow, 119071, Russia
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27
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Huang G, Daiguebonne C, Calvez G, Suffren Y, Guillou O, Guizouarn T, Le Guennic B, Cador O, Bernot K. Strong Magnetic Coupling and Single-Molecule-Magnet Behavior in Lanthanide-TEMPO Radical Chains. Inorg Chem 2018; 57:11044-11057. [DOI: 10.1021/acs.inorgchem.8b01640] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gang Huang
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Carole Daiguebonne
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Guillaume Calvez
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Yan Suffren
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Olivier Guillou
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Thierry Guizouarn
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Boris Le Guennic
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Olivier Cador
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
| | - Kevin Bernot
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) –UMR 6226, F-35000 Rennes, France
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28
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Chen Y, Liu C, Ma F, Qi D, Liu Q, Sun HL, Jiang J. Fabricating Bis(phthalocyaninato) Terbium SIM into Tetrakis(phthalocyaninato) Terbium SMM with Enhanced Performance through Sodium Coordination. Chemistry 2018; 24:8066-8070. [PMID: 29683531 DOI: 10.1002/chem.201800408] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Indexed: 11/09/2022]
Abstract
The non-peripherally substituted 1,4,8,11,15,18,22,25-octa(butoxy)-phthalocyanine-involved unsymmetrical heteroleptic bis(phthalocyaninato) terbium double-decker, Tb(Pc){H[Pc(α-OC4 H9 )8 ]} (Pc=unsubstituted phthalocyanine) (1), was revealed to exhibit typical single ion magnet (SIM) behavior with effective energy barrier, 180 K (125 cm-1 ), and blocking temperature, 2 K, due to the severe deviation of the terbium coordination polyhedron from square-antiprismatic geometry. Fabrication of this double-decker compound into the novel tetrakis(phthalocyaninato) terbium pseudo-quadruple-decker Na2 {Tb(Pc)[Pc(α-OC4 H9 )8 ]}2 (2) single molecule magnet (SMM) not only optimizes the coordination polyhedron of terbium ion towards the square-antiprismatic geometry and intensifies the coordination field strength, but more importantly significantly enhances the molecular magnetic anisotropy in the unsymmetrical bis(phthalocyaninato) double-decker unit, along with the change of the counter cation from H+ of 1 to Na+ of 2, leading to an significantly enhanced magnetic behavior with spin-reversal energy barrier, 528 K (367 cm-1 ), and blocking temperature, 25 K. The present result is surely helpful towards developing novel tetrapyrrole lanthanide SMMs through rational design and self-assembly from bis(tetrapyrrole) lanthanide single ion magnet (SIM) building block.
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Affiliation(s)
- Yuxiang Chen
- Beijing Key Laboratory for Science, and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chao Liu
- Beijing Key Laboratory for Science, and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Fang Ma
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing, 100875, China
| | - Dongdong Qi
- Beijing Key Laboratory for Science, and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266510, Shandong, China
| | - Hao-Ling Sun
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing, 100875, China
| | - Jianzhuang Jiang
- Beijing Key Laboratory for Science, and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
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29
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Katoh K, Yamashita S, Yasuda N, Kitagawa Y, Breedlove BK, Nakazawa Y, Yamashita M. Control of the Spin Dynamics of Single‐Molecule Magnets by using a Quasi One‐Dimensional Arrangement. Angew Chem Int Ed Engl 2018; 57:9262-9267. [DOI: 10.1002/anie.201803161] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Keiichi Katoh
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Satoshi Yamashita
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama-Cho Toyonaka, Osaka 560-0043 Japan
| | - Nobuhiro Yasuda
- Research and Utilization Division Japan Synchrotron Radiation Research Institute 1-1-1 Kouto Sayo-cho Sayo-gun, Hyogo 679-5198 Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science Graduate School of Engineering Science Osaka University Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Brian K. Breedlove
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Yasuhiro Nakazawa
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama-Cho Toyonaka, Osaka 560-0043 Japan
| | - Masahiro Yamashita
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
- WPI Research Center Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
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30
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Katoh K, Yamashita S, Yasuda N, Kitagawa Y, Breedlove BK, Nakazawa Y, Yamashita M. Control of the Spin Dynamics of Single‐Molecule Magnets by using a Quasi One‐Dimensional Arrangement. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803161] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Keiichi Katoh
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Satoshi Yamashita
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama-Cho Toyonaka, Osaka 560-0043 Japan
| | - Nobuhiro Yasuda
- Research and Utilization Division Japan Synchrotron Radiation Research Institute 1-1-1 Kouto Sayo-cho Sayo-gun, Hyogo 679-5198 Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science Graduate School of Engineering Science Osaka University Machikaneyama Toyonaka Osaka 560-8531 Japan
| | - Brian K. Breedlove
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
| | - Yasuhiro Nakazawa
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama-Cho Toyonaka, Osaka 560-0043 Japan
| | - Masahiro Yamashita
- Department of Chemistry Graduate School of Science Tohoku University 6-3 Aramaki Aza Aoba Aoba-ku Sendai, Miyagi 980-8578 Japan
- WPI Research Center Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
- School of Materials Science and Engineering Nankai University Tianjin 300350 China
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31
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Morita T, Damjanović M, Katoh K, Kitagawa Y, Yasuda N, Lan Y, Wernsdorfer W, Breedlove BK, Enders M, Yamashita M. Comparison of the Magnetic Anisotropy and Spin Relaxation Phenomenon of Dinuclear Terbium(III) Phthalocyaninato Single-Molecule Magnets Using the Geometric Spin Arrangement. J Am Chem Soc 2018; 140:2995-3007. [PMID: 29400960 DOI: 10.1021/jacs.7b12667] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Herein we report the synthesis and characterization of a dinuclear TbIII single-molecule magnet (SMM) with two [TbPc2]0 units connected via a fused-phthalocyaninato ligand. The stable and robust complex [(obPc)Tb(Fused-Pc)Tb(obPc)] (1) was characterized by using synchrotron radiation measurements and other spectroscopic techniques (ESI-MS, FT-IR, UV). The magnetic couplings between the TbIII ions and the two π radicals present in 1 were explored by means of density functional theory (DFT). Direct and alternating current magnetic susceptibility measurements were conducted on magnetically diluted and nondiluted samples of 1, indicating this compound to be an SMM with improved properties compared to those of the well-known [TbPc2]-/0/+ and the axially symmetric dinuclear TbIII phthalocyaninato triple-decker complex (Tb2(obPc)3). Assuming that the probability of quantum tunneling of the magnetization (QTM) occurring in one TbPc2 unit is PQTM, the probability of QTM simultaneously occurring in 1 is PQTM2, meaning that QTM is effectively suppressed. Furthermore, nondiluted samples of 1 underwent slow magnetic relaxation times (τ ≈ 1000 s at 0.1 K), and the blocking temperature (TB) was determined to be ca. 16 K with an energy barrier for spin reversal (Ueff) of 588 cm-1 (847 K) due to D4d geometry and weak inter- and intramolecular magnetic interactions as an exchange bias (Hbias), reducing QTM. Four hyperfine steps were observed by micro-SQUID measurement. Furthermore, solution NMR measurements (one-dimensional, two-dimensional, and dynamic) were done on 1, which led to the determination of the high rotation barrier (83 ± 10 kJ/mol) of the obPc ligand. A comparison with previously reported TbIII triple-decker compounds shows that ambient temperature NMR measurements can indicate improvements in the design of coordination environments for SMMs. A large Ueff causes strong uniaxial magnetic anisotropy in 1, leading to a χax value (1.39 × 10-30 m3) that is larger than that for Tb2(obPc)3 (0.86 × 10-30 m3). Controlling the coordination environment and spin arrangement is an effective technique for suppressing QTM in TbPc2-based SMMs.
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Affiliation(s)
- Takaumi Morita
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Marko Damjanović
- Institute of Inorganic Chemistry, Heidelberg University , Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany.,Physikalisches Institut and Institute of Nanotechnology, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany
| | - Keiichi Katoh
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University , 1-1 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Nobuhiro Yasuda
- Japan Synchrotron Radiation Research Institute (JASRI) , 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yanhua Lan
- Physikalisches Institut and Institute of Nanotechnology, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany
| | - Wolfgang Wernsdorfer
- Physikalisches Institut and Institute of Nanotechnology, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.,CNRS and Université Grenoble Alpes, Institut Néel , 38042 Grenoble, France
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Markus Enders
- Institute of Inorganic Chemistry, Heidelberg University , Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3, Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan.,WPI Research Center, Advanced Institute for Materials Research, Tohoku University , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.,School of Materials Science and Engineering, Nankai University , Tianjin 300350, China
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