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Highly Porous Cyanometallic Spin-Crossover Frameworks Employing Pyridazino[4,5-d]pyridazine Bridge. INORGANICS 2022. [DOI: 10.3390/inorganics10110195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Single crystals of two spin-crossover (SCO) cyanometallic coordination polymers based on the pyridazino[4,5-d]pyridazine ligand (pp) of the composition [Fe(pp)M(CN)4]∙G (where M = Pd, Pt; G = guest molecules) were obtained by a slow diffusion technique. A single-crystal X-ray analysis showed that both compounds adopted the structure of porous 3D frameworks, consisting of heterometallic cyano-bridged layers and interlayer pillar pp ligands, with a total solvent accessible volume of ca. 160 Å3 per iron(II) ion (about 37% of the unit cell volume). These frameworks displayed hysteretic SCO behaviour with T1/2 of 150/190 K (heating/cooling) for Pd complex and 135/170 K (heating/cooling) for Pt complex, which was confirmed by variable-temperature SCXRD experiments. This research shows the perspective of using pp ligand for building porous MOFs with spin transitions.
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Molecular mechanics simulations of lattice dynamical properties of the Spin Crossover complex [Fe(pyrazine)][Ni(CN)4]. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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3
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Kumar B, Paul A, Mondal DJ, Paliwal P, Konar S. Spin-State Modulation in Fe II -Based Hofmann-Type Coordination Polymers: From Molecules to Materials. CHEM REC 2022; 22:e202200135. [PMID: 35815939 DOI: 10.1002/tcr.202200135] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/21/2022] [Indexed: 11/05/2022]
Abstract
Spin crossover complexes that reversibly interconvert between two stable states imitate a binary state of 0 and 1, delivering a promising possibility to address the data processing concept in smart materials. Thus, a comprehensive understanding of the modulation of magnetic transition between high spin and low spin and the factors responsible for stabilizing the spin states is an essential theme in modern materials design. In this context, the present review attempts to provide a concise outline of the design strategy employed at the molecular level for fine-tuning the spin-state switching in FeII -based Hofmann-type coordination polymers and their effects on the optical and magnetic response. In addition, development towards the nanoscale architectures of HCPs, i. e., in terms of nanoparticles and thin films, are emphasized to bridge the gap between the laboratory and reality.
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Affiliation(s)
- Bhart Kumar
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Abhik Paul
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Dibya Jyoti Mondal
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Piyush Paliwal
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Sanjit Konar
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
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Solovyev M, Kucheryavy P, Lockard JV. Local Coordination and Electronic Structure Ramifications of Guest-Dependent Spin Crossover in a Metal-Organic Framework: A Combined X-ray Absorption and Emission Spectroscopy Study. Inorg Chem 2022; 61:9213-9223. [PMID: 35678726 DOI: 10.1021/acs.inorgchem.2c00774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The porous Hoffman-type 3D lattice Fe(pz)[NiII(CN)4] exhibits thermally induced spin-crossover (SCO) behavior that is dependent on the solvent guest species occupying the pores. Here, in situ Fe K-edge X-ray absorption spectroscopy (XAS) and both non-resonant and resonant Kβ X-ray emission spectroscopy (XES) methods are used to probe this framework under two solvent environments that yield different extremes of spin crossover temperature: acetonitrile and toluene. While the acetonitrile pore environment engenders an SCO response around room temperature, toluene guests stabilize the high spin state and effectively suppress SCO behavior throughout the ambient temperature range. The multipronged X-ray spectroscopy approach simultaneously confirmed this spin crossover behavior and provided new local coordination and electronic structural insights of the framework under these two solvent environments. Extended X-ray absorption fine structure analysis revealed spin state and solvent guest-dependent differences in coordination bond lengths and structural disorder. Resonant XES measurements produced high-resolution XAS spectra with distinct pre-edge and edge features, whose assignment was established using both simple ligand field theory and time-dependent density-functional theory calculations and further supported by their observed resonance behavior in the 2D RXES plane. Edge feature variation with the Fe spin state was interpreted to reveal changes in specific metal-linker bond covalency.
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Affiliation(s)
- Mikhail Solovyev
- Department of Chemistry, Rutgers University─Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Pavel Kucheryavy
- Department of Chemistry, Rutgers University─Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jenny V Lockard
- Department of Chemistry, Rutgers University─Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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Kucheriv OI, Fritsky IO, Gural'skiy IA. Spin crossover in FeII cyanometallic frameworks. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120303] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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López-Moreno A, del Carmen Giménez-López M. Metallic-based magnetic switches under confinement. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Li Y, Liu M, Yao ZS, Tao J. Temperature-dependent hysteretic two-step spin crossover in two-dimensional Hofmann-type compounds. Dalton Trans 2020; 49:7245-7251. [DOI: 10.1039/d0dt00866d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two 2D Hofmann-type compounds [FeII(ppe)2MII(CN)4]·3H2O [ppe = 1-(2-pyridyl)-2-(4-pyridyl)ethylene; M = Pd for 1 and Pt for 2] have been synthesized. Both of them show complete two-step hysteretic SCO transitions HS1.0 ⇌ HS0.6–0.5LS0.4–0.5 ⇌ LS1.0.
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Affiliation(s)
- Yue Li
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- People's Republic of China
| | - Min Liu
- School of Nuclear Science and Technology
- University of South China
- Hengyang 421001
- 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
| | - Jun Tao
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
- People's Republic of China
- Key Laboratory of Cluster Science of Ministry of Education
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8
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Rubio-Giménez V, Tatay S, Martí-Gastaldo C. Electrical conductivity and magnetic bistability in metal–organic frameworks and coordination polymers: charge transport and spin crossover at the nanoscale. Chem Soc Rev 2020; 49:5601-5638. [DOI: 10.1039/c9cs00594c] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This review aims to reassess the progress, issues and opportunities in the path towards integrating conductive and magnetically bistable coordination polymers and metal–organic frameworks as active components in electronic devices.
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Affiliation(s)
- Víctor Rubio-Giménez
- Instituto de Ciencia Molecular
- Universitat de València
- 46980 Paterna
- Spain
- Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions (cMACS)
| | - Sergio Tatay
- Instituto de Ciencia Molecular
- Universitat de València
- 46980 Paterna
- Spain
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9
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Zhang CJ, Lian KT, Wu SG, Liu Y, Huang GZ, Ni ZP, Tong ML. The substituent guest effect on four-step spin-crossover behavior. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01420a] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The fluoro substituent strategy on the guest in a three-dimensional Hofmann-type metal–organic framework is explored for four-step spin-crossover properties.
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Affiliation(s)
- Cui-Juan Zhang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Kai-Ting Lian
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Si-Guo Wu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Yang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Zhao-Ping Ni
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou
- P. R. China
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10
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Polyzou CD, Malina O, Tuček J, Zbořil R, Panagiotou N, Tasiopoulos AJ, Boukos N, Parthenios J, Kalarakis AN, Tangoulis V. Spin-Crossover Phenomenon in Microcrystals and Nanoparticles of a [Fe(2-mpz) 2Ni(CN) 4] Two-Dimensional Hofmann-Type Polymer: A Detailed Nano-Topographic Study. Inorg Chem 2019; 58:13733-13736. [PMID: 31573185 DOI: 10.1021/acs.inorgchem.9b01405] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The diamagnetic two-dimensional Hofmann-type metal-organic framework [ZnII(2-mpz)2Ni(CN)4] has been successfully synthesized along with its isostructural hysteretic spin-crossover FeII analogue in the form of both bulk microcrystalline powder and nanoparticles. Detailed atomic force microscopy topographic study revealed a nanogrowth relationship between the height and length of the nanoparticle.
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Affiliation(s)
- Christina D Polyzou
- Laboratory of Inorganic Chemistry, Department of Chemistry , University of Patras , 26504 Patras , Greece
| | - Ondřej Malina
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science , Palacký University Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Jiri Tuček
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science , Palacký University Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science , Palacký University Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Nikos Panagiotou
- Department of Chemistry , University of Cyprus , 1678 Nicosia , Cyprus
| | | | - Nikos Boukos
- Institute of Nanoscience and Nanotechnology , NCSR "Demokritos" , 153 10 Aghia Paraskevi Attikis , Greece
| | - John Parthenios
- Foundation for Research and Technology-Hellas, Institute of Chemical Engineering Sciences , Stadiou Str. Platani , 265 04 Patras , Greece
| | - Alexandros N Kalarakis
- Department of Mechanical Engineering , University of Peloponnese , GR-26334 Patras , Greece
| | - Vassilis Tangoulis
- Laboratory of Inorganic Chemistry, Department of Chemistry , University of Patras , 26504 Patras , Greece
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11
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Polyzou CD, Tangoulis V. Review: Downsizing effect on 2-D and 3-D spin crossover metal-organic frameworks. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1576865] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Christina D. Polyzou
- Department of Chemistry, Laboratory of Inorganic Chemistry, University of Patras, Patras, Greece
| | - Vassilis Tangoulis
- Department of Chemistry, Laboratory of Inorganic Chemistry, University of Patras, Patras, Greece
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12
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Müller D, Knoll C, Seifried M, Welch JM, Giester G, Reissner M, Weinberger P. Halogenated Alkyltetrazoles for the Rational Design of Fe II Spin-Crossover Materials: Fine-Tuning of the Ligand Size. Chemistry 2018; 24:5271-5280. [PMID: 29205547 DOI: 10.1002/chem.201704656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Indexed: 11/10/2022]
Abstract
1-(3-Halopropyl)-1H-tetrazoles and their corresponding FeII spin-crossover complexes have been investigated in a combined experimental and theoretical study. Halogen substitution was found to positively influence the spin transition, shifting the transition temperature about 70 K towards room temperature. Halogens located at the ω position were found to be too far away from the coordinating tetrazole moiety to have an electronic impact on the spin transition. The subtle variation of the steric demand of the ligand in a highly comparable series was found to have a comparatively large impact on the spin-transition behavior, which highlights the sensitivity of the effect to subtle structural changes.
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Affiliation(s)
- Danny Müller
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, 1060, Vienna, Austria
| | - Christian Knoll
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, 1060, Vienna, Austria
| | - Marco Seifried
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, 1060, Vienna, Austria
| | - Jan M Welch
- Atominstitut, TU Wien, Stadionallee 2, 1020, Vienna, Austria
| | - Gerald Giester
- Department of Mineralogy and Crystallography, University of Vienna, Althanstraße 14 (UZA 2), 1090, Vienna, Austria
| | - Michael Reissner
- Institute of Solid State Physics, TU Wien, Wiedner Hauptstraße 8-10/050, 1040, Vienna, Austria
| | - Peter Weinberger
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, 1060, Vienna, Austria
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