1
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Wu XR, Wu SQ, Liu ZK, Chen MX, Tao J, Sato O, Kou HZ. Integrating spin-dependent emission and dielectric switching in Fe II catenated metal-organic frameworks. Nat Commun 2024; 15:3961. [PMID: 38729932 PMCID: PMC11087595 DOI: 10.1038/s41467-024-48425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 04/26/2024] [Indexed: 05/12/2024] Open
Abstract
Mechanically interlocked molecules (MIMs) including famous catenanes show switchable physical properties and attract continuous research interest due to their potential application in molecular devices. The advantages of using spin crossover (SCO) materials here are enormous, allowing for control through diverse stimuli and highly specific functions, and enabling the transfer of the internal dynamics of MIMs from solution to solid state, leading to macroscopic applications. Herein, we report the efficient self-assembly of catenated metal-organic frameworks (termed catena-MOFs) induced by stacking interactions, through the combination of rationally selected flexible and conjugated naphthalene diimide-based bis-pyridyl ligand (BPND), [MI(CN)2]- (M = Ag or Au) and Fe2+ in a one-step strategy. The obtained bimetallic Hofmann-type SCO-MOFs [FeII(BPND){Ag(CN)2}2]·3CHCl3 (1Ag) and [FeII(BPND{Au(CN)2}2]·2CHCl3·2H2O (1Au) possess a unique three-dimensional (3D) catena-MOF constructed from the polycatenation of two-dimensional (2D) layers with hxl topology. Both complexes undergo thermal- and light-induced SCO. Significantly, abnormal increases in the maximum emission intensity and dielectric constant can be detected simultaneously with the switching of spin states. This research opens up SCO-actuated bistable MIMs that afford dual functionality of coupled fluorescence emission and dielectricity.
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Affiliation(s)
- Xue-Ru Wu
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, 100084, Beijing, PR China
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Zhi-Kun Liu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, 102488, Beijing, PR China
| | - Ming-Xing Chen
- Analytical Instrumentation Center, College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, PR China
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, 102488, Beijing, PR China
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hui-Zhong Kou
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, 100084, Beijing, PR China.
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2
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Zeng FL, Jin XT, Zhao J, Zhang SX, Xue C, Luo YH. Construction and screening of spin-crossover-sponge materials based on iron(II)-triazole coordination polymers. Dalton Trans 2024; 53:2333-2340. [PMID: 38205731 DOI: 10.1039/d3dt03531j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Iron(II)-triazole coordination polymers have attracted considerable interest for their synthetic versatility, which allows tuning their spin-crossover (SCO) properties. Embedding SCO solid particles in sponge matrices is a simple, powerful, and generic approach to construct processable SCO materials. Here, we have studied a series of magnetic frameworks based on partial ligand substitution by using different chemical mixtures of two organic ligands, yielding four isostructural coordination polymers. The integration of the hygroscopic SCO material has endowed the composite sponge with the ability to capture moisture under ambient conditions. In particular, not only does a spin-crossover transition during absorption occur, but also a color variation has been achieved by varying humidity. The consequences of cooperativity and the exposed surface of the composite sponge on the spin transition were evaluated and the most promising materials among them were screened. This work provides guiding significance for the fabrication and practical application of spin-crossover-sponge materials.
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Affiliation(s)
- Feng-Lian Zeng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
| | - Xue-Ting Jin
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
| | - Jie Zhao
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
| | - Shu-Xin Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
| | - Cheng Xue
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
| | - Yang-Hui Luo
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P.R. China.
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3
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Li W, Li X, Robeyns K, Wolff M, Kfoury J, Oláh J, Herchel R, Demeshko S, Meyer F, Garcia Y. Spin-state versatility in FeII4L 6 supramolecular cages with a pyridyl-hydrazone ligand scaffold modulated by solvents and counter anions. Dalton Trans 2024; 53:1449-1459. [PMID: 37909312 DOI: 10.1039/d3dt02474a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Discrete spin crossover (SCO) tetranuclear cages are a unique class of materials that have potential use in next-generation molecular recognition and sensing. In this work, two new edge-bridged SCO FeII4L6 (L = 2,7-bis(((E)-pyridin-2-ylmethylene)amino)benzo[lmn] [3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone) supramolecular cages with different counter anions: ClO4- (2) and CF3SO3- (3) were constructed via subcomponent self-assembly to investigate both solvent and anion influences on their magnetic properties and compare them to cage 1 with a BF4- anion. Pyridyl-hydrazone bidentate ligand scaffolds were employed to replace the 'classical' imidazole/thiazolyl-imine coordination units to induce SCO behaviour in these cages. 2 and 3 were structurally characterized by single-crystal X-ray diffraction analysis and electrospray ionization time-of-flight mass spectrometry. Magnetic susceptibilities of 1-3 and 1-3·desolvated indicate that the solvents' presence is in favor of the low-spin (LS) state. While different counter anions in 1-3·desolvated affect the spin-state configurations of the four FeII metal centers. According to the 57Fe Mössbauer spectral analysis, the spin-state distributions in 1-3 at 80 K are [2 high-spin (HS)-2LS], [1HS-3LS] and [2HS-2LS], respectively and density functional theory calculations were employed to investigate the reasons. These findings provide insights to regulate the spin-state versatility of SCO FeII cage systems in the solid state.
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Affiliation(s)
- Weiyang Li
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
| | - Xiaochun Li
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
| | - Koen Robeyns
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
| | - Mariusz Wolff
- Institut für Chemische Katalyse, Fakultät für Chemie, Universität Wien, Währinger Strasse 38, 1090 Wien, Austria
| | - Joseph Kfoury
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Szent Gellért tér 4, Budapest, Hungary
| | - Julianna Oláh
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Szent Gellért tér 4, Budapest, Hungary
| | - Radovan Herchel
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, D-37077 Göttingen, Germany
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
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4
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Fernández-Fariña S, Velo-Heleno I, Martínez-Calvo M, Maneiro M, Pedrido R, González-Noya AM. Schiff Bases Functionalized with T-Butyl Groups as Adequate Ligands to Extended Assembly of Cu(II) Helicates. Int J Mol Sci 2023; 24:ijms24108654. [PMID: 37239998 DOI: 10.3390/ijms24108654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
The study of the inherent factors that influence the isolation of one type of metallosupramolecular architecture over another is one of the main objectives in the field of Metallosupramolecular Chemistry. In this work, we report two new neutral copper(II) helicates, [Cu2(L1)2]·4CH3CN and [Cu2(L2)2]·CH3CN, obtained by means of an electrochemical methodology and derived from two Schiff-based strands functionalized with ortho and para-t-butyl groups on the aromatic surface. These small modifications let us explore the relationship between the ligand design and the structure of the extended metallosupramolecular architecture. The magnetic properties of the Cu(II) helicates were explored by Electron Paramagnetic Resonance (EPR) spectroscopy and Direct Current (DC) magnetic susceptibility measurements.
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Affiliation(s)
- Sandra Fernández-Fariña
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Isabel Velo-Heleno
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Miguel Martínez-Calvo
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Marcelino Maneiro
- Departamento de Química Inorgánica, Facultade de Ciencias, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Rosa Pedrido
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ana M González-Noya
- Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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5
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Iron(II) Mediated Supramolecular Architectures with Schiff Bases and Their Spin-Crossover Properties. Molecules 2023; 28:molecules28031012. [PMID: 36770685 PMCID: PMC9919814 DOI: 10.3390/molecules28031012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Supramolecular architectures, which are formed through the combination of inorganic metal cations and organic ligands by self-assembly, are one of the techniques in modern chemical science. This kind of multi-nuclear system in various dimensionalities can be implemented in various applications such as sensing, storage/cargo, display and molecular switching. Iron(II) mediated spin-crossover (SCO) supramolecular architectures with Schiff bases have attracted the attention of many investigators due to their structural novelty as well as their potential application possibilities. In this paper, we review a number of supramolecular SCO architectures of iron(II) with Schiff base ligands exhibiting varying geometrical possibilities. The structural and SCO behavior of these complexes are also discussed in detail.
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6
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Velazquez-Garcia JDJ, Basuroy K, Storozhuk D, Wong J, Demeshko S, Meyer F, Henning R, Techert S. Short- vs. long-range elastic distortion: structural dynamics of a [2 × 2] tetrairon(II) spin crossover grid complex observed by time-resolved X-Ray crystallography. Dalton Trans 2022; 51:17558-17566. [PMID: 36315244 PMCID: PMC9749069 DOI: 10.1039/d2dt02638d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Spin crossover complexes (SCO) are among the most studied molecular switches due to their potential use in displays, sensors, actuators and memory components. A prerequisite to using these materials is the understanding of the structural changes following the spin transition at out-of-equilibrium conditions. So far, out-of-equilibrium studies in SCO solids have been focused on mononuclear complexes, though a growing number of oligonuclear SCO complexes showing cooperative effects are being reported. Here, we use time-resolved pink Laue crystallography to study the out-of-equilibrium dynamics of a [2 × 2] tetranuclear metallogrid of the form [FeII4LMe4](BF4)4·2MeCN ([LMe]- = 4-methyl-3,5-bis{6-(2,2'-bipyridyl)}pyrazolate). The out-of-equilibrium spin state switching induced by a ps laser pulse demonstrates that the metallogrid exhibits a multi-step response similar to that reported for mononuclear complexes. Contrary to the mononuclear complexes, the metallogrid shows two types of elastic distortions at different time scales. The first is a short-range distortion that propagates over the entire Fe4 grid complex during the ps time scale, and it is caused by the rearrangement of the coordination sphere of the photo-switching ion and the constant feedback between strongly linked metal ions. The second is a long-range distortion caused by the anisotropic expansion of the lattice during the ns time scale, observed in mononuclear materials. The structural analysis demonstrates that the long-range prevails over the short-range distortion, inducing the largest deformation of both the entire grid and the coordination sphere of each metal ion. The present study sheds light on the out-of -equilibrium dynamics of a non-cooperative oligonuclear complex.
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Affiliation(s)
- Jose de Jesus Velazquez-Garcia
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany.
| | - Krishnayan Basuroy
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany.
| | - Darina Storozhuk
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany.
| | - Joanne Wong
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, Göttingen, 37077, Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, Göttingen, 37077, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, Göttingen, 37077, Germany
| | - Robert Henning
- Center for Advanced Radiation Sources, The University of Chicago, Argonne National Laboratory, 9700 South Cass Ave, Lemont, Illinois, 90439, USA
| | - Simone Techert
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg, 22607, Germany.
- Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, Göttingen, 37077, Germany
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7
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Spin state of two mononuclear iron(II) complexes of a tridentate bis(imino)pyridine N-donor ligand: Experimental and theoretical investigations. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Fluorescence emission modulation in cyanido-bridged Fe(II) spin crossover coordination polymers. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1294-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Investigations on the Spin States of Two Mononuclear Iron(II) Complexes Based on N-Donor Tridentate Schiff Base Ligands Derived from Pyridine-2,6-Dicarboxaldehyde. INORGANICS 2022. [DOI: 10.3390/inorganics10070098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Iron(II)-Schiff base complexes are a well-studied class of spin-crossover (SCO) active species due to their ability to interconvert between a paramagnetic high spin-state (HS, S = 2, 5T2) and a diamagnetic low spin-state (LS, S = 0, 1A1) by external stimuli under an appropriate ligand field. We have synthesized two mononuclear FeII complexes, viz., [Fe(L1)2](ClO4)2.CH3OH (1) and [Fe(L2)2](ClO4)2.2CH3CN (2), from two N6–coordinating tridentate Schiff bases derived from 2,6-bis[(benzylimino)methyl]pyridine. The complexes have been characterized by elemental analysis, electrospray ionization–mass spectrometry (ESI-MS), Fourier-transform infrared spectroscopy (FTIR), solution state nuclear magnetic resonance spectroscopy, 1H and 13C NMR (both theoretically and experimentally), single-crystal diffraction and magnetic susceptibility studies. The structural, spectroscopic and magnetic investigations revealed that 1 and 2 are with Fe–N6 distorted octahedral coordination geometry and remain locked in LS state throughout the measured temperature range from 5–350 K.
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Singh J, Panda SK, Singh AK. Recent developments in supramolecular complexes of azabenzenes containing one to four N atoms: synthetic strategies, structures, and magnetic properties. RSC Adv 2022; 12:18945-18972. [PMID: 35873336 PMCID: PMC9240818 DOI: 10.1039/d2ra03455g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 06/20/2022] [Indexed: 11/25/2022] Open
Abstract
For the last couple of decades, azabenzene-based ligands have drawn much attention from inorganic chemists due to their ability to coordinate with different metal ions to form supramolecular clusters. These azabenzenes are weak σ donors and strong π acceptors and electron-deficient. Metallogrid complexes and non-grid oligomers are well-defined supramolecular clusters, formed by appropriate chelating ligands, and can show interesting optical, magnetic, and electronic properties. Self-assembly of [n × n] metallogrid complexes is dominated by the entropic factor while the formation of oligonuclear metal ion complexes is dominated by other effects like CFSE, electrostatic factors, ligand conformational characters, etc. Herein, the present article gives an overview of six-membered heterocyclic azine-based ligands and their potential for different metal ions to form polynuclear complexes. Moreover, their temperature-dependent magnetic properties and SCO phenomena are well described and tabulated.
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Affiliation(s)
- Juhi Singh
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar Bhubaneswar 752 050 India
| | - Suvam Kumar Panda
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar Bhubaneswar 752 050 India
| | - Akhilesh Kumar Singh
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar Bhubaneswar 752 050 India
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11
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Scarpi-Luttenauer M, Mobian P, Barloy L. Synthesis, structure and functions of discrete titanium-based multinuclear architectures. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214439] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Kumar A, Virender, Mohan B, Solovev AA, Saini M, Kumar Sharma H. Development of 2-Hydroxy-Naphthaldehyde Functionalized Schiff Base Chemosensor for Spectroscopic and Colorimetric Detection of Cu2+ and Pd2+ ions. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Day E, Kauffmann B, Scarpi‐Luttenauer M, Chaumont A, Henry M, Mobian P. An Alternate [2×2] Grid Constructed Around TiO
4
N
2
Units. Chemistry 2022; 28:e202200047. [DOI: 10.1002/chem.202200047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Erin Day
- Laboratoire de Chimie Moléculaire de l'Etat Solide UMR 7140 UDS-CNRS Université de Strasbourg 4 rue Blaise Pascal 67000 Strasbourg France
| | - Brice Kauffmann
- Univ. Bordeaux IECB, UMS 3033/US 001 2 rue Robert Escarpit 33607 Pessac France
| | - Matthieu Scarpi‐Luttenauer
- Laboratoire de Chimie Moléculaire de l'Etat Solide UMR 7140 UDS-CNRS Université de Strasbourg 4 rue Blaise Pascal 67000 Strasbourg France
| | - Alain Chaumont
- Laboratoire de Modélisation et Simulations Moléculaires UMR 7140 UDS-CNRS Université de Strasbourg 4 rue Blaise Pascal 67000 Strasbourg France
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide UMR 7140 UDS-CNRS Université de Strasbourg 4 rue Blaise Pascal 67000 Strasbourg France
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide UMR 7140 UDS-CNRS Université de Strasbourg 4 rue Blaise Pascal 67000 Strasbourg France
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14
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Guo Z, You M, Deng YF, Liu Q, Meng YS, Pikramenou Z, Zhang YZ. An azido-bridged [FeII4] grid-like molecule showing spin crossover behaviour. Dalton Trans 2021; 50:14303-14308. [PMID: 34554167 DOI: 10.1039/d1dt01908b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The supramolecular self-assembly synthetic strategy provides a valid tool to obtain polynuclear Fe(II) complexes having effective communication between the metal centres and distinct spin crossover behaviour. Despite the great success in constructing various magnetic molecules, progress has not been made in SCO complexes based on azido bridges. In this article, the coordination-driven supramolecular assembly based on 3,6-substituted pyridazine and azide is presented to afford two Fe(II) grid-like complexes: [(L)4FeII4(N3)4][BPh4]4·sol (1, L = 3,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)pyridazine and 2, L = 3,6-di(pyridin-2-yl)pyridazine). The substitution of pyridinyl groups in 2 instead of pyrazolyl ones in 1 led to the only example exhibiting spin-crossover behaviour (T1/2 = 230 K) among the azido-bridged complexes. In addition, a temperature-dependent photoluminescence study of 2 demonstrates a visible synergetic effect between the SCO event and the luminescence.
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Affiliation(s)
- Zhilin Guo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China. .,School of Chemistry, The University of Birmingham, Edgbaston B15 2TT, UK.
| | - Maolin You
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China. .,Department of Chemistry, National University of Singapore, Science Drive 3, Singapore 117543
| | - Yi-Fei Deng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Qiang Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd, Dalian 116024, P. R. China
| | - Yin-Shan Meng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd, Dalian 116024, P. R. China
| | - Zoe Pikramenou
- School of Chemistry, The University of Birmingham, Edgbaston B15 2TT, UK.
| | - Yuan-Zhu Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
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15
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Shiga T, Tachibana M, Sagayama H, Kumai R, Newton GN, Oshio H, Nihei M. A ring of grids: a giant spin-crossover cluster. Chem Commun (Camb) 2021; 57:10162-10165. [PMID: 34516598 DOI: 10.1039/d1cc04346c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mononuclear and icosanuclear spin-crossover complexes, [FeII(HL)2](BF4)2 (1) and [FeII20(L)24](BF4)16 (2), were synthesized using an asymmetric multidentate ligand (HL). 1 has a bis-chelate structure with two protonated ligands, while 2 has a ring-shape structure comprising four [2 × 2] grid moieties and four mononuclear units.
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Affiliation(s)
- Takuya Shiga
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
| | - Minami Tachibana
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
| | - Hajime Sagayama
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan
| | - Reiji Kumai
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Oho 1-1, Tsukuba, Ibaraki 305-0801, Japan
| | - Graham N Newton
- GSK Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Nottingham, NG7 2TU, UK
| | - Hiroki Oshio
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan. .,State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd., 116024 Dalian, China
| | - Masayuki Nihei
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
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16
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Hardy M, Tessarolo J, Holstein JJ, Struch N, Wagner N, Weisbarth R, Engeser M, Beck J, Horiuchi S, Clever GH, Lützen A. A Family of Heterobimetallic Cubes Shows Spin-Crossover Behaviour Near Room Temperature. Angew Chem Int Ed Engl 2021; 60:22562-22569. [PMID: 34382295 PMCID: PMC8519129 DOI: 10.1002/anie.202108792] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/04/2021] [Indexed: 11/08/2022]
Abstract
Using 4-(4'-pyridyl)aniline as a simple organic building block in combination with three different aldehyde components together with metal(II) salts gave three different Fe8 Pt6 -cubes and their corresponding Zn8 Pt6 analogues by employing the subcomponent self-assembly approach. Whereas the use of zinc(II) salts gave rise to diamagnetic cages, iron(II) salts yielded metallosupramolecular cages that show spin-crossover behaviour in solution. The spin-transition temperature T1/2 depends on the incorporated aldehyde component, giving a construction kit for the deliberate synthesis of spin-crossover compounds with tailored transition properties. Incorporation of 4-thiazolecarbaldehyde or N-methyl-2-imidazole-carbaldehyde yielded cages that undergo spin-crossover around room temperature whereas the cage obtained using 1H-4-imidazolecarbaldehyde shows a spin-transition at low temperatures. Three new structures were characterized by synchrotron X-ray diffraction and all structures were characterized by mass spectrometry, NMR and UV/Vis spectroscopy.
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Affiliation(s)
- Matthias Hardy
- Rheinische Friedrich-Wilhelms-Universität BonnKekulé-Institut für Organische Chemie und BiochemieGerhard-Domagk-Str. 153121BonnGermany
- Current address: BASF SESpeyerer Str. 267117LimburgerhofGermany
| | - Jacopo Tessarolo
- Technische Universität DortmundOtto-Hahn-Str. 644227DortmundGermany
| | | | - Niklas Struch
- Rheinische Friedrich-Wilhelms-Universität BonnKekulé-Institut für Organische Chemie und BiochemieGerhard-Domagk-Str. 153121BonnGermany
- Current address: Arlanxeo (Deutschland) GmbHAlte Heerstraße 241540DormagenGermany
| | - Norbert Wagner
- Rheinische Friedrich-Wilhelms-Universität BonnInstitut für Anorganische ChemieGerhard-Domagk-Str. 153121BonnGermany
| | - Ralf Weisbarth
- Rheinische Friedrich-Wilhelms-Universität BonnInstitut für Anorganische ChemieGerhard-Domagk-Str. 153121BonnGermany
| | - Marianne Engeser
- Rheinische Friedrich-Wilhelms-Universität BonnKekulé-Institut für Organische Chemie und BiochemieGerhard-Domagk-Str. 153121BonnGermany
| | - Johannes Beck
- Rheinische Friedrich-Wilhelms-Universität BonnInstitut für Anorganische ChemieGerhard-Domagk-Str. 153121BonnGermany
| | - Shinnosuke Horiuchi
- Technische Universität DortmundOtto-Hahn-Str. 644227DortmundGermany
- Division of Chemistry and Materials ScienceGraduate School of EngineeringNagasaki University, Bunkyo-machiNagasaki852-8521Japan
| | - Guido H. Clever
- Technische Universität DortmundOtto-Hahn-Str. 644227DortmundGermany
| | - Arne Lützen
- Rheinische Friedrich-Wilhelms-Universität BonnKekulé-Institut für Organische Chemie und BiochemieGerhard-Domagk-Str. 153121BonnGermany
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17
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Hardy M, Tessarolo J, Holstein JJ, Struch N, Wagner N, Weisbarth R, Engeser M, Beck J, Horiuchi S, Clever GH, Lützen A. Eine Familie von Heterobimetallischen Würfeln zeigt Spin‐Crossover‐Verhalten nahe Raumtemperatur. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Matthias Hardy
- Rheinische Friedrich-Wilhelms-Universität Bonn Kekulé-Institut für Organische Chemie und Biochemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
- Derzeitige Adresse: BASF SE Speyerer Str. 2 67117 Limburgerhof Deutschland
| | - Jacopo Tessarolo
- Technische Universität Dortmund Otto-Hahn-Str. 6 44227 Dortmund Deutschland
| | - Julian J. Holstein
- Technische Universität Dortmund Otto-Hahn-Str. 6 44227 Dortmund Deutschland
| | - Niklas Struch
- Rheinische Friedrich-Wilhelms-Universität Bonn Kekulé-Institut für Organische Chemie und Biochemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
- Derzeitige Adresse: Arlanxeo (Deutschland) GmbH Alte Heerstraße 2 41540 Dormagen Deutschland
| | - Norbert Wagner
- Rheinische Friedrich-Wilhelms-Universität Bonn Institut für Anorganische Chemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
| | - Ralf Weisbarth
- Rheinische Friedrich-Wilhelms-Universität Bonn Institut für Anorganische Chemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
| | - Marianne Engeser
- Rheinische Friedrich-Wilhelms-Universität Bonn Kekulé-Institut für Organische Chemie und Biochemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
| | - Johannes Beck
- Rheinische Friedrich-Wilhelms-Universität Bonn Institut für Anorganische Chemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
| | - Shinnosuke Horiuchi
- Technische Universität Dortmund Otto-Hahn-Str. 6 44227 Dortmund Deutschland
- Division of Chemistry and Materials Science Graduate School of Engineering Nagasaki University, Bunkyo-machi Nagasaki 852-8521 Japan
| | - Guido H. Clever
- Technische Universität Dortmund Otto-Hahn-Str. 6 44227 Dortmund Deutschland
| | - Arne Lützen
- Rheinische Friedrich-Wilhelms-Universität Bonn Kekulé-Institut für Organische Chemie und Biochemie Gerhard-Domagk-Str. 1 53121 Bonn Deutschland
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18
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Huang W, Ma X, Sato O, Wu D. Controlling dynamic magnetic properties of coordination clusters via switchable electronic configuration. Chem Soc Rev 2021; 50:6832-6870. [PMID: 34151907 DOI: 10.1039/d1cs00101a] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Large-sized coordination clusters have emerged as a new class of molecular materials in which many metal atoms and organic ligands are integrated to synergize their properties. As dynamic magnetic materials, such a combination of multiple components functioning as responsive units has many advantages over monometallic systems due to the synergy between constituent components. Understanding the nature of dynamic magnetism at an atomic level is crucial for realizing the desired properties, designing responsive molecular nanomagnets, and ultimately unlocking the full potential of these nanomagnets for practical applications. Therefore, this review article highlights the recent development of large-sized coordination clusters with dynamic magnetic properties. These dynamic properties can be associated with spin transition, electron transfer, and valence fluctuation through their switchable electronic configurations. Subsequently, the article also highlights specialized characterization techniques with different timescales for supporting switching mechanisms, chemistry, and properties. Afterward, we present an overview of coordination clusters (such as cyanide-bridged and non-cyanide assemblies) with dynamic magnetic properties, namely, spin transition and electron transfer in magnetically bistable systems and mixed-valence complexes. In particular, the response mechanisms of coordination clusters are highlighted using representative examples with similar transition principles to gain insights into spin state and mixed-valence chemistry. In conclusion, we present possible solutions to challenges related to dynamic magnetic clusters and potential opportunities for a wide range of intelligent next-generation devices.
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Affiliation(s)
- Wei Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
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19
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Gebretsadik T, Yang Q, Wu J, Tang J. Hydrazone based spin crossover complexes: Behind the extra flexibility of the hydrazone moiety to switch the spin state. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213666] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Holub J, Santoro A, Stadler MA, Lehn JM. Peripherally multi-functionalised metallosupramolecular grids: assembly, decoration, building blocks for dynamic covalent architectures. Inorg Chem Front 2021. [DOI: 10.1039/d1qi01084k] [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
The sequential assembly of first terminally functionalized bishydrazone ligands followed by their coordination with Zn(ii) metal cations yields peripherally multi-functionalized [2 × 2] grid-type complexes.
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Affiliation(s)
- Jan Holub
- Laboratoire de Chimie Supramoléculaire, ISIS, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Antonio Santoro
- Laboratoire de Chimie Supramoléculaire, ISIS, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Mihail-Adrian Stadler
- Laboratoire de Chimie Supramoléculaire, ISIS, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean-Marie Lehn
- Laboratoire de Chimie Supramoléculaire, ISIS, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
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21
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Zhang Y, Yang Q, Lu J, Guo M, Li XL, Tang J. Heterometallic {DyIII2FeII2} grids with slow magnetic relaxation and spin crossover. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01471k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The self-assembly of a DyIII ion, an FeII ion and a multitopic H2L ligand produces novel [2 × 2] {DyIII2FeII2} grids exhibiting slow magnetic relaxation and spin crossover.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Qianqian Yang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jingjing Lu
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Mei Guo
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Xiao-Lei Li
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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22
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Ouyang ZJ, Mo XY, Ye JQ, Yu XX, Huang SY, Liu XL, Chen WB, Gao S, Dong W. High temperature anionic Fe(III) spin crossover behavior in a mixed-valence Fe(II)/Fe(III) complex. Dalton Trans 2021; 50:5960-5967. [PMID: 33949504 DOI: 10.1039/d1dt00111f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two ion-pair Fe(iii) complexes (PPh4)[FeIII(HATD)2]·2H2O (1, H3ATD = azotetrazolyl-2,7-dihydroxynaphthalene) and [FeII(phen)3][FeIII(HATD)2]2·3DMA·3.5H2O (2, phen = 1,10-phenanthroline, DMA = N,N-dimethylformamide) were synthesized by employing the tridentate ligand H3ATD. Crystal structure analyses reveal that complexes 1 and 2 consist of FeIII ions in an octahedral environment where a FeIII ion is coordinated by two HATD2- ligands forming the [FeIII(HATD)2]- core. The shortest cationanion distance between the phosphorus ion of the (PPh4)+ cation and the ferric ion of the [FeIII(HATD)2]- anion is 13.190 Å in complex 1, whereas that between the ferrous ion of the [FeII(Phen)3]2+ cation and the ferric ion of the [FeIII(HATD)2]- anion is 7.821 Å in complex 2. C-HC and C-HO hydrogen interactions between the [FeII(phen)3]2+ cation and the [FeIII(HATD)2]- anion are observed in 2. Face-to-face π-π stacking interactions between naphthalene rings with the separated interplanar center to center distances of 3.421-3.680 Å were observed, which result in a one-dimensional supramolecular chain in complexes 1 and 2. Magnetic measurements show that complex 1 is in the low-spin (LS) state below 500 K, whereas 2 undergoes a high temperature spin crossover (SCO) between 360 and 500 K. Magneto-structural relationship studies reveal that π-stacking, hydrogen interactions and Coulomb interactions between the [FeIII(HATD)2]- anion and the [FeII(phen)3]2+ cation play a crucial role in the high temperature Fe(iii) SCO behaviour of complex 2.
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Affiliation(s)
- Zhi-Jian Ouyang
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Xiao-Ying Mo
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Jia-Qi Ye
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Xiao-Xuan Yu
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Shu-Yuan Huang
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Xiao-Ling Liu
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Wen-Bin Chen
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
| | - Song Gao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China
| | - Wen Dong
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
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23
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Zhao XH, Shao D, Chen JT, Liu M, Li T, Yang J, Zhang YZ. Spin and valence isomerism in cyanide-bridged {FeM II} (M = Fe and Co) clusters. Dalton Trans 2021; 50:9768-9774. [PMID: 34169954 DOI: 10.1039/d1dt01298c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two cyanide-bridged V-shaped isostructural trinuclear complexes [{(Tp*)FeIII(CN)3}2MII(bztpen)]·Sol (M = Fe, Sol = CH3OH·3H2O, 1; M = Co, Sol = 2CH3OH·2H2O, 2; bztpen = N-benzyl-N,N',N'-tris(2-methylpyridyl)ethylenediamine; Tp* = hydrotris(3,5-dimethylpyrazolyl)borate) were synthesized and characterized. The bztpen ligand serves as a tetradentate capping ligand around the inner metal ion, leaving one pyridyl group intact. Complex 1 exhibits a spin crossover (SCO) behavior between the {FeIIILSFeIIHSFeIIILS} and {FeIIILSFeIILSFeIIILS} spin isomers, while 2 shows both thermally- and photo-induced electron-transfer coupled spin transition (ETCST) property between the {FeIIILSCoIIHSFeIIILS} and {FeIIILSCoIIILSFeIILS} valence isomers. The total entropy changes for 1 and 2 between their corresponding two electronic states were found to be very close with the values of 87.46 and 84.49 J mol-1 K-1, respectively, indicating the comparable thermal energy barriers necessary for either an SCO or ETCST event for such a given system. Furthermore, both complexes undergo desolvation-induced irreversible and sharp magnetic change at high temperatures.
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Affiliation(s)
- Xin-Hua Zhao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Dong Shao
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Jia-Tao Chen
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Min Liu
- College of Nuclear Science and Technology, University of South China, Hengyang, 421001, P. R. China
| | - Tao Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Jiong Yang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Yuan-Zhu Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
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24
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Milocco F, de Vries F, Bartels IMA, Havenith RWA, Cirera J, Demeshko S, Meyer F, Otten E. Electronic Control of Spin-Crossover Properties in Four-Coordinate Bis(formazanate) Iron(II) Complexes. J Am Chem Soc 2020; 142:20170-20181. [PMID: 33197175 PMCID: PMC7705964 DOI: 10.1021/jacs.0c10010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
The
transition between spin states in d-block metal complexes has
important ramifications for their structure and reactivity, with applications
ranging from information storage materials to understanding catalytic
activity of metalloenzymes. Tuning the ligand field (ΔO) by steric and/or electronic effects has provided spin-crossover
compounds for several transition metals in the periodic table, but
this has mostly been limited to coordinatively saturated metal centers
in octahedral ligand environments. Spin-crossover complexes with low
coordination numbers are much rarer. Here we report a series of four-coordinate,
(pseudo)tetrahedral Fe(II) complexes with formazanate ligands and
demonstrate how electronic substituent effects can be used to modulate
the thermally induced transition between S = 0 and S = 2 spin states in solution. All six compounds undergo
spin-crossover in solution with T1/2 above
room temperature (300–368 K). While structural analysis by
X-ray crystallography shows that the majority of these compounds are
low-spin in the solid state (and remain unchanged upon heating), we
find that packing effects can override this preference and give rise
to either rigorously high-spin (6) or gradual spin-crossover
behavior (5) also in the solid state. Density functional
theory calculations are used to delineate the empirical trends in
solution spin-crossover thermodynamics. In all cases, the stabilization
of the low-spin state is due to the π-acceptor properties of
the formazanate ligand, resulting in an “inverted” ligand
field, with an approximate “two-over-three” splitting
of the d-orbitals and a high degree of metal–ligand covalency
due to metal → ligand π-backdonation. The computational
data indicate that the electronic nature of the para-substituent has a different influence depending on whether it is
present at the C–Ar or N–Ar rings, which is ascribed
to the opposing effect on metal–ligand σ- and π-bonding.
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Affiliation(s)
- Francesca Milocco
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Folkert de Vries
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Imke M A Bartels
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Remco W A Havenith
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.,Ghent Quantum Chemistry Group, Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 (S3), B-9000 Gent, Belgium
| | - Jordi Cirera
- Departament de Química Inorgànica i Orgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Edwin Otten
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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25
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Alsowayigh MM, Timco GA, Borilovic I, Alanazi A, Vitorica-Yrezabal IJ, Whitehead GFS, McNaughter PD, Tuna F, O'Brien P, Winpenny REP, Lewis DJ, Collison D. Heterometallic 3d-4f Complexes as Air-Stable Molecular Precursors in Low Temperature Syntheses of Stoichiometric Rare-Earth Orthoferrite Powders. Inorg Chem 2020; 59:15796-15806. [PMID: 33044071 DOI: 10.1021/acs.inorgchem.0c02249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Four 3d-4f hetero-polymetallic complexes [Fe2Ln2((OCH2)3CR)2(O2CtBu)6(H2O)4] (where Ln = La (1 and 2) and Gd (3 and 4); and R = Me (1 and 3) and Et (2 and 4)) are synthesized and analyzed using elemental analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis, and SQUID magnetometry. Crystal structures are obtained for both methyl derivatives and show that the complexes are isostructural and adopt a defective dicubane topology. The four heavy metals are connected with two alkoxide bridges. These four precursors are used as single-source precursors to prepare rare-earth orthoferrite pervoskites of the form LnFeO3. Thermal decomposition in a ceramic boat in a tube furnace gives orthorhombic LnFeO3 powders using optimized temperatures and decomposition times: LaFeO3 formed at 650 °C over 30 min, whereas GdFeO3 formed at 750 °C over 18 h. These materials are structurally characterized using powder X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray map spectroscopy, and SQUID magnetometry. EDX spectroscopy mapping reveals a homogeneous spatial distribution of elements for all four materials consistent with LnFeO3. Magnetic measurements on complexes 1-4 confirm the presence of weak antiferromagnetic coupling between the central Fe(III) ions of the clusters and negligible ferromagnetic interaction with peripheral Gd(III) ions in 3 and 4. Zero-field-cooled and field-cooled measurements of magnetization of LaFeO3 and GdFeO3 in the solid-state suggest that both materials are ferromagnetic, and both materials show open magnetic hysteresis loops at 5 and 300 K, with Msat higher than previously reported for these nanomaterials. We conclude that this is a new and facile low temperature route to these important magnetic materials that is potentially universal, limited only by what metals can be programmed into the precursor complexes.
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Affiliation(s)
- Marwah M Alsowayigh
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.,Chemistry Department, College of Science, King Faisal University, P.O. 380, Al-Ahsa 31982, Kingdom of Saudia Arabia
| | - Grigore A Timco
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Ivana Borilovic
- Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Abdulaziz Alanazi
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Inigo J Vitorica-Yrezabal
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - George F S Whitehead
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Paul D McNaughter
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Floriana Tuna
- Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Paul O'Brien
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom.,Department of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - Richard E P Winpenny
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - David J Lewis
- Department of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
| | - David Collison
- Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
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26
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Design and self-assembly of new [2 × 2] grids constructed by lanthanide ions and a Schiff base. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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27
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Naumova MA, Kalinko A, Wong JWL, Alvarez Gutierrez S, Meng J, Liang M, Abdellah M, Geng H, Lin W, Kubicek K, Biednov M, Lima F, Galler A, Zalden P, Checchia S, Mante PA, Zimara J, Schwarzer D, Demeshko S, Murzin V, Gosztola D, Jarenmark M, Zhang J, Bauer M, Lawson Daku ML, Khakhulin D, Gawelda W, Bressler C, Meyer F, Zheng K, Canton SE. Exploring the light-induced dynamics in solvated metallogrid complexes with femtosecond pulses across the electromagnetic spectrum. J Chem Phys 2020; 152:214301. [PMID: 32505143 DOI: 10.1063/1.5138641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Oligonuclear complexes of d4-d7 transition metal ion centers that undergo spin-switching have long been developed for their practical role in molecular electronics. Recently, they also have appeared as promising photochemical reactants demonstrating improved stability. However, the lack of knowledge about their photophysical properties in the solution phase compared to mononuclear complexes is currently hampering their inclusion into advanced light-driven reactions. In the present study, the ultrafast photoinduced dynamics in a solvated [2 × 2] iron(II) metallogrid complex are characterized by combining measurements with transient optical-infrared absorption and x-ray emission spectroscopy on the femtosecond time scale. The analysis is supported by density functional theory calculations. The photocycle can be described in terms of intra-site transitions, where the FeII centers in the low-spin state are independently photoexcited. The Franck-Condon state decays via the formation of a vibrationally hot high-spin (HS) state that displays coherent behavior within a few picoseconds and thermalizes within tens of picoseconds to yield a metastable HS state living for several hundreds of nanoseconds. Systematic comparison with the closely related mononuclear complex [Fe(terpy)2]2+ reveals that nuclearity has a profound impact on the photoinduced dynamics. More generally, this work provides guidelines for expanding the integration of oligonuclear complexes into new photoconversion schemes that may be triggered by ultrafast spin-switching.
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Affiliation(s)
- Maria A Naumova
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany
| | - Aleksandr Kalinko
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany
| | - Joanne W L Wong
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, 37077 Göttingen, Germany
| | - Sol Alvarez Gutierrez
- Department of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Jie Meng
- Department of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Mingli Liang
- Department of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Mohamed Abdellah
- Chemical Physics and NanoLund, Lund University, Box 124, 22100 Lund, Sweden
| | - Huifang Geng
- ELI-ALPS, ELI-HU Non-Profit Ltd., Dugonics ter 13, Szeged 6720, Hungary
| | - Weihua Lin
- Chemical Physics and NanoLund, Lund University, Box 124, 22100 Lund, Sweden
| | | | | | | | | | - Peter Zalden
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | - Jennifer Zimara
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Dirk Schwarzer
- Department of Dynamics at Surfaces, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Serhiy Demeshko
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, 37077 Göttingen, Germany
| | - Vadim Murzin
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany
| | - David Gosztola
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | | | - Jianxin Zhang
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
| | - Matthias Bauer
- Department Chemie and Center for Sustainable Systems Design (CSSD), University of Paderborn, Warburger Straße 100, D-33098 Paderborn, Germany
| | - Max Latevi Lawson Daku
- Département de Chimie Physique, Université de Genève, Quai E. Ansermet 30, CH-1211 Genève 4, Switzerland
| | | | | | | | - Franc Meyer
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstraße 4, 37077 Göttingen, Germany
| | - Kaibo Zheng
- Department of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Sophie E Canton
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg, Germany
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28
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Qiu YR, Cui L, Cai PY, Yu F, Kurmoo M, Leong CF, D'Alessandro DM, Zuo JL. Enhanced dielectricity coupled to spin-crossover in a one-dimensional polymer iron(ii) incorporating tetrathiafulvalene. Chem Sci 2020; 11:6229-6235. [PMID: 32953018 PMCID: PMC7480181 DOI: 10.1039/d0sc02388d] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/27/2020] [Indexed: 11/21/2022] Open
Abstract
A concerted bending–flattening motion of the redox-active TTF within constructed one-dimensional FeII–TTF–Schiff-base chain with bridging 4,4′-bpy enhances the dielectric constant coupled to its spin-crossover transition above room temperature.
In designing multifunctional materials for potential switches that can be used as memory devices, the high-spin (HS) to low-spin (LS) crossover (SCO) one-dimensional polymer, [FeII(L)(4,4′-bpy)]n, was constructed from a designed redox-active tetrathiafulvalene (TTF) functionalized Schiff-base and the ditopic linker 4,4′-bipyridine (bpy). It exhibits an 8 K hysteretic SCO centred at T1/2 = 325 K which is coupled to changes in its dielectric constant. The crystal structures above and below the transition temperature reveal similar parallel linear ···Fe–bpy–Fe–bpy··· chains displaying expansion of the FeII octahedron in the HS state. Density functional theory (DFT) calculations reveal a concerted electronic charge and spin change represented by the Mülliken charge of the Fe and the magnitude and direction of the dipole moment which substantiate the experimental observations.
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Affiliation(s)
- Ya-Ru Qiu
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China .
| | - Long Cui
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China .
| | - Pei-Yu Cai
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China .
| | - Fei Yu
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China . .,School of Chemistry and Materials Science , Nanjing University of Information Science and Technology , Nanjing , 210044 , P. R. China
| | - Mohamedally Kurmoo
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China . .,Institut de Chimie de Strasbourg , CNRS-UMR7177 , Université de Strasbourg , 4 rue Blaise Pascal , Strasbourg 67000 , France .
| | - Chanel F Leong
- School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Deanna M D'Alessandro
- School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry , School of Chemistry and Chemical Engineering , Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China .
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29
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Wang JY, Luo YH, Xing FH, Jin XW, Guo LH, Zhai LH, Zhang L, Fang WX, Sun BW. Build 3D Nanoparticles by Using Ultrathin 2D MOF Nanosheets for NIR Light-Triggered Molecular Switching. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15573-15578. [PMID: 32155041 DOI: 10.1021/acsami.0c00324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The coordination interactions between transition-metal ions (Cu2+, Ag+) and sulfur atoms on ultrathin two-dimensional (2D) nanosheets of spin-crossover (SCO) metal-organic frameworks {[Fe(1,3-bpp)2(NCS)2]2}n (1,3-bpp = 1,3-di(4-pyridyl)propane), which constructed the ultrathin 2D nanosheets into three-dimensional (3D) nanoparticles, have made a profound effect on the SCO performance. Compared with 2D nanosheets, both the intraligand π-π* transition band and the metal-to-ligand charge transition band from the d(Fe) + π(NCS) to π*(1,3-bpp), for the 3D nanoparticles, have shown dramatic blue-shifts; meanwhile, the d-d transition band for the high-spin (HS) state Fe(II) ions has been generated, suggesting significantly the influence of 3D assemble-caused dimensional changes on the solid-state SCO performance of ultrathin 2D nanosheets. More importantly, by loading on the ytterbium ion (Yb3+)-sensitized hexagonal phase upconverting nanoparticles in the aqueous colloidal suspension, the near infrared (NIR) light (980 nm) triggered HS (high spin) to LS (low spin) state transitions have been observed, demonstrating the achievement of challenging target of NIR light-triggered molecular conversion under environment conditions.
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Affiliation(s)
- Jia-Ying Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yang-Hui Luo
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Feng-Hao Xing
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Xiao-Wei Jin
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Li-Hong Guo
- Lunan Pharmaceutical Company Ltd., Linyi, 276000 Shandong, China
| | - Li-Hai Zhai
- Lunan Pharmaceutical Company Ltd., Linyi, 276000 Shandong, China
| | - Lan Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Wen-Xia Fang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Bai-Wang Sun
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
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30
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Bonanno NM, Patrick BO, Seda T, Lemaire MT. A Neutral Fe
4
t
Bu
L
4
All Ferric Grid Complex: Structural and Variable Temperature Magnetic Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nico M. Bonanno
- Department of Chemistry Brock University 1812 Sir Isaac Brock Way St. Catharines L2S 3A1 Ontario Canada
| | - Brian O. Patrick
- Department of Chemistry University of British Columbia Vancouver British Columbia Canada
| | - Takele Seda
- Department of Physics and Astronomy Western Washington University Bellingham Washington USA
| | - Martin T. Lemaire
- Department of Chemistry Brock University 1812 Sir Isaac Brock Way St. Catharines L2S 3A1 Ontario Canada
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31
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Ouyang ZJ, Mo XY, Yang M, Zhong L, Chen WB, Gao S, Dong W. High temperature Fe(iii) spin crossover behaviours in three unprecedented FeIII–MII–FeIII (M = Fe, Cd) linear trinuclear complexes. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01560d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An azo-based ligand of azotetrazolyl-2,7-dihydroxynaphthalene (H3ATD) was used to synthesize three FeIII–MII–FeIII (M = Fe, Cd) linear trinuclear complexes with different high temperature spin crossover (SCO) behaviours for the terminal FeIII ions.
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Affiliation(s)
- Zhi-Jian Ouyang
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Xiao-Ying Mo
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Meng Yang
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Li Zhong
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Wen-Bin Chen
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Song Gao
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510641
- P. R. China
| | - Wen Dong
- Guangzhou Key Laboratory for Environmentally Functional Materials and Technology
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
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32
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Chen JT, Zhao XH, Zhang YZ. Manipulating the spin crossover behavior in a series of {FeIII2FeII} complexes. Dalton Trans 2020; 49:5949-5956. [DOI: 10.1039/d0dt00016g] [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
Three cyanide-bridged {Fe2Fe} complexes are reported to exhibit excellent SCO properties which are highly dependent on the compact degree of the π-π stacking, the loss of lattice solvents as well as the electron-donor strength of TpR.
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Affiliation(s)
- Jia-Tao Chen
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Xin-Hua Zhao
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
| | - Yuan-Zhu Zhang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- P. R. China
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33
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Costa JS, Rodríguez-Jiménez S, Craig GA, Barth B, Beavers CM, Teat SJ, Gagnon KJ, Barrios LA, Roubeau O, Aromí G. Selective signalling of alcohols by a molecular lattice and mechanism of single-crystal-to-single-crystal transformations. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00645a] [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
A molecular material undergoes spin-switching as it exchanges MeOH, EtOH or nPrOH with acetone from the lattice. The subsequent thermal single-crystal-to-single-crystal desorption of nPrOH is followed by single crystal X-ray diffraction snapshots.
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Affiliation(s)
- José Sánchez Costa
- Departament de Química Inorgànica i Orgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | | | - Gavin A. Craig
- Departament de Química Inorgànica i Orgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Benjamin Barth
- Departament de Química Inorgànica i Orgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | | | | | | | - Leoní A. Barrios
- Departament de Química Inorgànica i Orgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Institute of Nanoscience and Nanotechnology of the University of Barcelona (IN2UB)
| | - Olivier Roubeau
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC and Universidad de Zaragoza
- Zaragoza
- Spain
| | - Guillem Aromí
- Departament de Química Inorgànica i Orgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Institute of Nanoscience and Nanotechnology of the University of Barcelona (IN2UB)
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34
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Xue JP, Wu WJ, Li QS, Yao ZS, Tao J. A Two-Dimensional Spin-Crossover Coordination Polymer Exhibiting Interlayer Multiple C–Hδ+···Hδ−–B Dihydrogen Bonds. Inorg Chem 2019; 58:15705-15709. [DOI: 10.1021/acs.inorgchem.9b02927] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Peng Xue
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
| | - Wen-Jie Wu
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
| | - Quan-Song Li
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
| | - Zi-Shuo Yao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People’s Republic of China
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35
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Zheng C, Jia S, Dong Y, Xu J, Sui H, Wang F, Li D. Symmetry Breaking and Two-Step Spin-Crossover Behavior in Two Cyano-Bridged Mixed-Valence {FeIII2(μ-CN)4FeII2} Clusters. Inorg Chem 2019; 58:14316-14324. [DOI: 10.1021/acs.inorgchem.9b00544] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chunyang Zheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
- Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, Institute for Advanced Materials, Hubei Normal University, Huangshi 435002, P. R. China
| | - Shuwen Jia
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yubao Dong
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Juping Xu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Huanhuan Sui
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Feng Wang
- College of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000, P. R. China
| | - Dongfeng Li
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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36
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Wong JWL, Demeshko S, Dechert S, Meyer F. Heterometallic Ru 2Co 2 [2 × 2] Grid with Localized Single Molecule Magnet Behavior. Inorg Chem 2019; 58:13337-13345. [PMID: 31502457 DOI: 10.1021/acs.inorgchem.9b02214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal complexes with a [n × n] gridlike structure are discussed as attractive building blocks for various materials chemistry applications in molecular nanotechnology and electronics, which often rely on the grids' magnetic and redox properties. Most of the known metallogrids are homometallic, though heterometallic systems that comprise two or more different metals promise higher level functionalities. However, heterometallic [n × n] grids are relatively rare, mostly because of the more challenging synthetic strategies. To that end a new heterometallic [2 × 2] grid complex [L4Ru2Co2](BF4)4 (2) based on a known pyrazolate-bridged bis(tridentate) compartmental N-donor ligand [L]- is presented in this work, along with its doubly oxidized congener [L4Ru2Co2](BF4)6 (3). In order to prevent scrambling of the different metal ions, a stepwise synthetic approach was implemented in which an inert RuII "corner complex" [(HL)2Ru](BF4)2 (1) was isolated first, followed by addition of the more labile CoII. This exclusively yields the desired [L4Ru2Co2]4+ with anti-topology, viz., with the RuII and CoII ions situated at opposite corners of the [2 × 2] grid, as confirmed by single crystal X-ray diffraction. 2 can be sequentially oxidized four times, first at the Co vertices and then at the Ru vertices. 1H NMR spectroscopy as well as ESI mass spectrometry evidenced integrity of the [L4Ru2Co2]4+/6+ grids in solution. Structural and magnetic analyses revealed that paramagnetic 2 features LS-RuII and HS-CoII ions (LS = low-spin, HS = high-spin) whereas LS-RuII and LS-CoIII ions are present in diamagnetic 3. The LS-RuII ions in 2 serve to magnetically isolate the HS-CoII whose coordination geometry is strongly distorted from octahedral. A large and negative axial zero-field splitting value (D = -64 cm-1) for the local S = 3/2 ions is shown to lead to single molecule magnetic (SMM) properties characterized by a barrier to spin inversion of Ueff = 8.8 cm-1 and a single relaxation process with τo = 3.1 × 10-5 s. Transition metal [2 × 2] grid complexes showing SMM behavior are extremely rare, and this is the first heterometallic 3d/4d grid system featuring such a magnetic signature.
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Affiliation(s)
- Joanne W L Wong
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Serhiy Demeshko
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Sebastian Dechert
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
| | - Franc Meyer
- Universität Göttingen , Institut für Anorganische Chemie , Tammannstrasse 4 , D-37077 Göttingen , Germany
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37
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Shao D, Shi L, Shen FX, Wei XQ, Sato O, Wang XY. Reversible On–Off Switching of the Hysteretic Spin Crossover in a Cobalt(II) Complex via Crystal to Crystal Transformation. Inorg Chem 2019; 58:11589-11598. [DOI: 10.1021/acs.inorgchem.9b01436] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Shao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Le Shi
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Fu-Xing Shen
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Xiao-Qin Wei
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, 816-8580 Fukuoka, Japan
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, People’s Republic of China
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38
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Vinogradova KA, Pishchur DP, Korolkov IV, Bushuev MB. Magnetic properties and vapochromism of a composite on the base of an iron(II) spin crossover complex. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.04.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Xie X, Yang L, Luo F. Dual magnetic behavior of dysprosium(III) molecular magnet and Co(II) spin-crossover in an isolated [3d]-[4f] compound. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.04.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Dragulescu-Andrasi A, Hietsoi O, Üngör Ö, Dunk PW, Stubbs V, Arroyave A, Kovnir K, Shatruk M. Dicyanometalates as Building Blocks for Multinuclear Iron(II) Spin-Crossover Complexes. Inorg Chem 2019; 58:11920-11926. [PMID: 31136155 DOI: 10.1021/acs.inorgchem.9b01121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A synthetic strategy featuring dicyanometalates [M(CN)2]- (M = Ag, Au) as N-coordinating ditopic linkers connecting partially blocked FeII centers has been employed to produce heterometallic hexanuclear complexes, which exhibit spin-crossover (SCO) behavior at the FeII sites. The reaction between tris(2-pyridylmethyl)amine (tpma)-capped FeII ions and [Ag(CN)2]- proceeded with partial decomposition of the dicyanoargentate and led to the formation of {[Fe(tpma)]4(μ-CN)2[μ-Ag(CN)2]2}(ClO4)4·3H2O (1), in which both [Ag(CN)2]- and CN- act as bridging ligands, and the opposite [Ag(CN)2]- bridges are engaged in a pronounced argentophilic d10-d10 interaction. In an analogous synthesis, the more stable [Au(CN)2]- species remained intact and furnished the complex {[Fe(tpma)]2[μ-Au2(CN)4]2} (2), which features two FeII centers bridged by two [Au2(CN)4]2- dimers. The use of S,S'-bis(2-pyridylmethyl)-1,2-thioethane (bpte) as a mixed-donor, N2S2-coordinating capping ligand yielded {[Fe(bpte)]2[μ-Au2(CN)4]2} (3), with a structure analogous to that of 2. Variable-temperature magnetic susceptibility measurements revealed that complexes 1-3 exhibit an onset of SCO above 350 K. Measurements above 400 K further confirmed the occurrence of a gradual spin-state conversion for complex 2.
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Affiliation(s)
- Alina Dragulescu-Andrasi
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Oleksandr Hietsoi
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Ökten Üngör
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Paul W Dunk
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Victoria Stubbs
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Alejandra Arroyave
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Kirill Kovnir
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
| | - Michael Shatruk
- Department of Chemistry and Biochemistry , Florida State University , 95 Chieftan Way , Tallahassee , Florida 32306 , United States
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41
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Li Z, Dai J, Damjanović M, Shiga T, Wang J, Zhao J, Oshio H, Yamashita M, Bu X. Structure Switching and Modulation of the Magnetic Properties in Diarylethene‐Bridged Metallosupramolecular Compounds by Controlled Coordination‐Driven Self‐Assembly. Angew Chem Int Ed Engl 2019; 58:4339-4344. [DOI: 10.1002/anie.201900789] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Zhao‐Yang Li
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Jing‐Wei Dai
- State Key Laboratory of Medicinal Chemical BiologyNankai University 94 Weijin Road Tianjin 300071 P. R. China
| | - Marko Damjanović
- Institute of Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Takuya Shiga
- Department of ChemistryGraduate School of Pure and Applied SciencesUniversity of Tsukuba Tennnodai 1-1-1 Tsukuba 305-8571 Japan
| | - Jin‐Hua Wang
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Jia Zhao
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Hiroki Oshio
- Department of ChemistryGraduate School of Pure and Applied SciencesUniversity of Tsukuba Tennnodai 1-1-1 Tsukuba 305-8571 Japan
| | - Masahiro Yamashita
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aramaki-Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
- WPI Research CenterAdvanced Institute for Materials ResearchTohoku University Sendai 980-8577 Japan
| | - Xian‐He Bu
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 P. R. China
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42
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Li Z, Dai J, Damjanović M, Shiga T, Wang J, Zhao J, Oshio H, Yamashita M, Bu X. Structure Switching and Modulation of the Magnetic Properties in Diarylethene‐Bridged Metallosupramolecular Compounds by Controlled Coordination‐Driven Self‐Assembly. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900789] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Zhao‐Yang Li
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Jing‐Wei Dai
- State Key Laboratory of Medicinal Chemical BiologyNankai University 94 Weijin Road Tianjin 300071 P. R. China
| | - Marko Damjanović
- Institute of Nanotechnology (INT)Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Takuya Shiga
- Department of ChemistryGraduate School of Pure and Applied SciencesUniversity of Tsukuba Tennnodai 1-1-1 Tsukuba 305-8571 Japan
| | - Jin‐Hua Wang
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Jia Zhao
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
| | - Hiroki Oshio
- Department of ChemistryGraduate School of Pure and Applied SciencesUniversity of Tsukuba Tennnodai 1-1-1 Tsukuba 305-8571 Japan
| | - Masahiro Yamashita
- Department of ChemistryGraduate School of ScienceTohoku University 6-3 Aramaki-Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
- WPI Research CenterAdvanced Institute for Materials ResearchTohoku University Sendai 980-8577 Japan
| | - Xian‐He Bu
- School of Materials Science and EngineeringNankai University 38 Tongyan Road, Haihe Educational Park Tianjin 300350 P. R. China
- State Key Laboratory of Elemento-Organic ChemistryCollege of ChemistryNankai University 94 Weijin Road Tianjin 300071 P. R. China
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43
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Zhang Y, Ali B, Wu J, Guo M, Yu Y, Liu Z, Tang J. Construction of Metallosupramolecular Coordination Complexes: From Lanthanide Helicates to Octahedral Cages Showing Single-Molecule Magnet Behavior. Inorg Chem 2019; 58:3167-3174. [DOI: 10.1021/acs.inorgchem.8b03249] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Yu Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Basharat Ali
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
| | - Jianfeng Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Mei Guo
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Yang Yu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Zhiliang Liu
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, PR China
| | - Jinkui Tang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
- University of Science and Technology of China, Hefei 230026, PR China
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44
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Abstract
Supramolecular metallogrid complexes are metalloclusters involving metal ions in planar array arrangements and organic ligands in perpendicular arrangements at each corner of the metal sites. Such essentially metal ion arrays have attracted great attention in the last three decades owing to their variety of interesting optical, electronic and magnetic properties. Among them, metallogrids containing more than one type of metal, that is heterometallic grids, are rare but have more potential to engineer a higher level functionality into one molecule. However, until now, only dozens of heterometallic grids have been reported without any specific review. Herein, we aim to give an overview of the assembly strategies, the physicochemical properties, and finally some perspectives on the future development of heterometallic grids.
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Affiliation(s)
- Qianqian Yang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
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45
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Dey B, Roy S, Titiš J, Boča R, Bera SP, Mondal A, Konar S. Above Room Temperature Spin Transition in Thermally Stable Mononuclear Fe(III) Complexes. Inorg Chem 2019; 58:1134-1146. [DOI: 10.1021/acs.inorgchem.8b02405] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bijoy Dey
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Subhadip Roy
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Ján Titiš
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Roman Boča
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Siba Prasad Bera
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Arpan Mondal
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Sanjit Konar
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
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46
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Yuan J, Liu MJ, Wu SQ, Zhu X, Zhang N, Sato O, Kou HZ. Substituent effects on the fluorescent spin-crossover Fe(ii) complexes of rhodamine 6G hydrazones. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00111e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The magnetic properties of Fe(ii) pyridine-2-carbaldehyde rhodamine 6G hydrazone complexes are modulated by the substituents. The desolvated complex displays the correlation between the spin crossover and the fluorescence.
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Affiliation(s)
- Juan Yuan
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou 450046
- P. R. China
- Department of Chemistry
| | - Mei-Jiao Liu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering
- Kyushu University
- 819-0395 Fukuoka
- Japan
| | - Xin Zhu
- School of Pharmacy
- Henan University of Chinese Medicine
- Zhengzhou 450046
- P. R. China
| | - Nan Zhang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering
- Kyushu University
- 819-0395 Fukuoka
- Japan
| | - Hui-Zhong Kou
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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47
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Luo YH, Chen C, Lu GW, Hong DL, He XT, Wang C, Wang JY, Sun BW. Atomically Thin Two-Dimensional Nanosheets with Tunable Spin-Crossover Properties. J Phys Chem Lett 2018; 9:7052-7058. [PMID: 30509071 DOI: 10.1021/acs.jpclett.8b03298] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Combining the fascinating advantages of ultrathin two-dimensional (2D) nanosheets with the nanostructuration of spin-crossover (SCO) materials represents an attractive target of controlled fabrication of SCO nano-objects at the device level. Here, we demonstrate that through facile-operating ultrasonic force-assisted liquid exfoliation technology the three-dimensional (3D) van der Waals SCO bulk precursor {[Fe(1,3-bpp)2(NCS)2]2 (1, 1,3-bpp = 1,3-di(4-pyridyl)-propane)} can be exfoliated into single-layered 2D nanosheets (NS-1). As a consequence, the magnetism has been tuned from complete paramagnetic (bulk precursors) to SCO transition at around 250 K (2D nanosheets). In addition, the metal-to-ligand charge transition (MLCT), the intraligand π-π* transition and the color display also have been altered both in colloidal suspension and in the solid state. These dramatic changes of physical-chemical properties at different forms and states can be attributed to the efficient cooperativity derived from the interlayer van der Waals interactions within the curly or vertically stacked 2D building blocks.
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Affiliation(s)
- Yang-Hui Luo
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Chen Chen
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Guo-Wei Lu
- Institute of Innovative Science and Technology , Tokai University , Kanagawa 259-1292 , Japan
| | - Dan-Li Hong
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Xiao-Tong He
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Cong Wang
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Jia-Ying Wang
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
| | - Bai-Wang Sun
- School of Chemistry and Chemical Engineering , Southeast University , Nanjing 211189 , People's Republic of China
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48
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Yu F, Li JQ, Kurmoo M, Zuo JL. A Cuprous [4 × 4] Grid: Single-Crystal to Single-Crystal Transformation and Fading of Luminescence by Solvent Inclusion. Inorg Chem 2018; 57:15040-15043. [PMID: 30507179 DOI: 10.1021/acs.inorgchem.8b02878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The subtle balance of the metrics of the highly supple 5,5'-pyridyl-3,3'-bis-1 H-pyrazolate and the variable coordination numbers of Cu(I) favor the stabilization of a [4 × 4] grid complex with all Cu(I). It has numerous cuprophilic bonds (Cu···Cu = 2.56-3.02 Å), and consequently, exhibits strong orange luminescence that fades upon insertion of solvents without loss of crystallinity.
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Affiliation(s)
- Fei Yu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China
| | - Jia-Qian Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg , Université de Strasbourg , CNRS-UMR 7177, 4 rue Blaise Pascal , 67008 Strasbourg , France
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210023 , P. R. China
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49
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Yuan J, Wu SQ, Liu MJ, Sato O, Kou HZ. Rhodamine 6G-Labeled Pyridyl Aroylhydrazone Fe(II) Complex Exhibiting Synergetic Spin Crossover and Fluorescence. J Am Chem Soc 2018; 140:9426-9433. [DOI: 10.1021/jacs.8b00103] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Juan Yuan
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Shu-Qi Wu
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, 819-0395 Fukuoka, Japan
| | - Mei-Jiao Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Osamu Sato
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka Nishi-ku, 819-0395 Fukuoka, Japan
| | - Hui-Zhong Kou
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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50
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Yuan J, Pei LX, Song JY, Kou HZ. Pyrimidine-based iron(III) complexes of 2-(pyrimidin-2-ylhydrazonomethyl)-phenol: Synthesis, crystal structure and magnetic properties. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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