1
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Izumiyama N, Fujii S, Kato K, Tokunaga R, Hayami S, Nakaya M. Spin-crossover cobalt(II) complexes exhibiting temperature- and concentration-dependent optical changes in solution. Dalton Trans 2024; 53:9547-9553. [PMID: 38768302 DOI: 10.1039/d4dt00433g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
This work investigated the spin states of the cobalt(II) complexes [Co(L1)2](X)2 (1·X; L1 = 4'-(4-N,N'-diphenylaminophenyl)-2,2':6',2''-terpyridine, X = PF6, BPh4) and [Co(L2)2](X)2 (2·X; L2 = 4'-(4-N,N'-dimethylaminophenyl)-2,2':6',2''-terpyridine, X = PF6, BPh4) in the solid state and in solution. In the solid state, 1·PF6 and 2·PF6, both containing smaller PF6- counter anions, showed gradual spin-crossover. In contrast, 1·BPh4 and 2·BPh4 remained in the high-spin state over the temperature range of 5-400 K due to a lower degree of molecular cooperativity. Each of the cobalt(II) complexes exhibited effects of temperature and concentration on their absorption spectra that were related to the spin states in various organic solvents. This work provides new insights into the spectroscopic properties resulting from the spin states of cobalt(II) complexes in solution.
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Affiliation(s)
- Naoki Izumiyama
- Department of Material Science, Graduate School of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Shun Fujii
- Department of Material Science, Graduate School of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Kiichi Kato
- Department of Chemistry, Faculty of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Ryuya Tokunaga
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Shinya Hayami
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
- Institute of Industrial Nanomaterials (IINa), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Manabu Nakaya
- Department of Material Science, Graduate School of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
- Department of Chemistry, Faculty of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
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2
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Harris M, Kühne IA, Kelly CT, Jakobsen VB, Jordan R, O’Brien L, Müller-Bunz H, Felton S, Morgan GG. Compressed and Expanded Lattices - Barriers to Spin-State Switching in Mn 3+ Complexes. CRYSTAL GROWTH & DESIGN 2023; 23:3996-4012. [PMID: 37304401 PMCID: PMC10251414 DOI: 10.1021/acs.cgd.2c01284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/08/2023] [Indexed: 06/13/2023]
Abstract
We report the structural and magnetic properties of two new Mn3+ complex cations in the spin crossover (SCO) [Mn(R-sal2323)]+ series, in lattices with seven different counterions in each case. We investigate the effect on the Mn3+ spin state of appending electron-withdrawing and electron-donating groups on the phenolate donors of the ligand. This was achieved by substitution of the ortho and para positions on the phenolate donors with nitro and methoxy substituents in both possible geometric isomeric forms. Using this design paradigm, the [MnL1]+ (a) and [MnL2]+ (b) complex cations were prepared by complexation of Mn3+ to the hexadentate Schiff base ligands with 3-nitro-5-methoxy-phenolate or 3-methoxy-5-nitro-phenolate substituents, respectively. A clear trend emerges with adoption of the spin triplet form in complexes 1a-7a, with the 3-nitro-5-methoxy-phenolate donors, and spin triplet, spin quintet and thermal SCO in complexes 1b-7b with the 3-methoxy-5-nitro-phenolate ligand isomer. The outcomes are discussed in terms of geometric and steric factors in the 14 new compounds and by a wider analysis of electronic choices of Mn3+ with related ligands by comparison of bond length and angular distortion data of previously reported analogues in the [Mn(R-sal2323)]+ family. The structural and magnetic data published to date suggest a barrier to switching may exist for high spin forms of Mn3+ in those complexes with the longest bond lengths and highest distortion parameters. A barrier to switching from low spin to high spin is less clear but may operate in the seven [Mn(3-NO2-5-OMe-sal2323)]+ complexes 1a-7a reported here which were all low spin in the solid state at room temperature.
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Affiliation(s)
- Michelle
M. Harris
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
| | - Irina A. Kühne
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
- Department
of Functional Materials, FZU - Institute
of Physics - Czech Academy of Sciences, Na Slovance 1999/2, Prague
8, 182 21, Czech Republic
| | - Conor T. Kelly
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
| | - Vibe B. Jakobsen
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
| | - Ross Jordan
- Centre
for Quantum Materials and Technologies, School of Mathematics and
Physics, Queen’s University Belfast, Belfast BT7 1NN, United Kingdom
| | - Luke O’Brien
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
| | - Helge Müller-Bunz
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
| | - Solveig Felton
- Centre
for Quantum Materials and Technologies, School of Mathematics and
Physics, Queen’s University Belfast, Belfast BT7 1NN, United Kingdom
| | - Grace G. Morgan
- School
of Chemistry, University College Dublin, Belfield, Dublin, D04
V1W8, Ireland
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3
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Steric Quenching of Mn(III) Thermal Spin Crossover: Dilution of Spin Centers in Immobilized Solutions. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Structural and magnetic properties of a new spin crossover complex [Mn(4,6-diOMe-sal2323)]+ in lattices with ClO4−, (1), NO3−, (2), BF4−, (3), CF3SO3−, (4), and Cl− (5) counterions are reported. Comparison with the magnetostructural properties of the C6, C12, C18 and C22 alkylated analogues of the ClO4− salt of [Mn(4,6-diOMe-sal2323)]+ demonstrates that alkylation effectively switches off the thermal spin crossover pathway and the amphiphilic complexes are all high spin. The spin crossover quenching in the amphiphiles is further probed by magnetic, structural and Raman spectroscopic studies of the PF6− salts of the C6, C12 and C18 complexes of a related complex [Mn(3-OMe-sal2323)]+ which confirm a preference for the high spin state in all cases. Structural analysis is used to rationalize the choice of the spin quintet form in the seven amphiphilic complexes and to highlight the non-accessibility of the smaller spin triplet form of the ion more generally in dilute environments. We suggest that lattice pressure is a requirement to stabilize the spin triplet form of Mn3+ as the low spin form is not known to exist in solution.
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4
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Galadzhun I, Kulmaczewski R, Cespedes O, Halcrow MA. Iron/2,6‐Di(pyrazol‐1‐yl)pyridine Complexes with a Discotic Pattern of Alkyl or Alkynyl Substituents. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Iurii Galadzhun
- School of Chemistry University of Leeds Woodhouse Lane Leeds LS2 9JT UK
| | | | - Oscar Cespedes
- School of Physics and Astronomy University of Leeds EC Stoner Building Leeds LS2 9JT UK
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5
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Megat Hasnan MMI, Mohd Noor IS, Nayan N, Ahmad MK, Mohd Said S, Mohd Sabri MF, Mohd Salleh MF, Mohamed Ali MS, Mohd Zin R. Enhancement of spin Seebeck effect of reverse spin crossover Fe (II) micellar charge transport using PMMA polymer electrolyte. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ikhwan Syafiq Mohd Noor
- Physics Division, Centre of Foundation Studies for Agricultural Science Universiti Putra Malaysia Serdang Selangor Darul Ehsan 43400 UPM Malaysia
| | - Nafarizal Nayan
- Microelectronics and Nanotechnology, Shamsuddin Research Centre (MiNT‐SRC), Block F5 Universiti Tun Hussein Onn Malaysia Parit Raja Johor 86400 Malaysia
| | - Mohd Khairul Ahmad
- Microelectronics and Nanotechnology, Shamsuddin Research Centre (MiNT‐SRC), Block F5 Universiti Tun Hussein Onn Malaysia Parit Raja Johor 86400 Malaysia
| | - Suhana Mohd Said
- Department of Electrical Engineering, Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | - Mohd Faizul Mohd Sabri
- Department of Mechanical Engineering, Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | - Mohd Faiz Mohd Salleh
- Department of Electrical Engineering, Faculty of Engineering University of Malaya Kuala Lumpur 50603 Malaysia
| | | | - Rosnah Mohd Zin
- Faculty of Electrical and Electronic Engineering Universiti of Tun Hussein Onn Malaysia Parit Raja Johor Darul Takzim 86400 Malaysia
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6
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Spin Crossover in 3D Metal Centers Binding Halide-Containing Ligands: Magnetism, Structure and Computational Studies. SUSTAINABILITY 2020. [DOI: 10.3390/su12062512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The capability of a given substance to change its spin state by the action of a stimulus, such as a change in temperature, is by itself a very challenging property. Its interest is increased by the potential applications and the need to find sustainable functional materials. 3D transition metal complexes, mainly with octahedral geometry, display this property when coordinated to particular sets of ligands. The prediction of this behavior has been attempted by many authors. It is, however, made very difficult because spin crossover (SCO), as it is called, occurs most often in the solid state, where besides complexes, counter ions, and solvents are also present in many cases. Intermolecular interactions definitely play a major role in SCO. In this review, we decided to analyze SCO in mono- and binuclear transition metal complexes containing halogens as ligands or as substituents of the ligands. The aim was to try and find trends in the properties which might be correlated to halogen substitution patterns. Besides a revision of the properties, we analyzed structures and other information. We also tried to build a simple model to run Density Functional Theory (DFT) calculations and calculate several parameters hoping to find correlations between calculated indices and SCO data. Although there are many experimental studies and single-crystal X-ray diffraction structures, there are only few examples with the F, Cl, Br and series. When their intermolecular interactions were not very different, T1/2 (temperature with 50% high spin and 50% low spin states) usually increased with the calculated ligand field parameter (Δoct) within a given family. A way to predict SCO remains elusive.
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7
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Sundaresan S, Kitchen JA, Brooker S. Hydrophobic tail length in spin crossover active iron( ii) complexes predictably tunes T½ in solution and enables surface immobilisation. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01478k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Linear correlation of the hydrophobic alkyl tail length R employed in [FeII(LH-OR)(NCBH3)2] with the spin crossover switching temperature is a very convenient method of predictably tuning the iron(ii) spin state.
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Affiliation(s)
- Sriram Sundaresan
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Jonathan A. Kitchen
- School of Natural and Computational Sciences
- Massey University Auckland
- New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
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8
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Senthil Kumar K, Vela S, Heinrich B, Suryadevara N, Karmazin L, Bailly C, Ruben M. Bi-stable spin-crossover in charge-neutral [Fe(R-ptp) 2] (ptp = 2-(1H-pyrazol-1-yl)-6-(1H-tetrazol-5-yl)pyridine) complexes. Dalton Trans 2019; 49:1022-1031. [PMID: 31859300 DOI: 10.1039/c9dt04411f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bi-stable charge-neutral iron(ii) spin-crossover (SCO) complexes are a class of switchable molecular materials proposed for molecule-based switching and memory applications. In this study, we report on the SCO behavior of a series of iron(ii) complexes composed of rationally designed 2-(1H-pyrazol-1-yl)-6-(1H-tetrazol-5-yl)pyridine (ptp) ligands. The powder forms of [Fe2+(R-ptp-)2]0 complexes tethered with less-bulky substituents-R = H (1), R = CH2OH (2), and R = COOCH3 (3; previously reported)-at the 4-position of the pyridine ring of the ptp skeleton showed abrupt and hysteretic SCO at or above room temperature (RT), whereas complex 5 featuring a bulky pyrene substituent showed incomplete and gradual SCO behavior. The role of intermolecular interactions, lattice solvent, and electronic nature of the chemical substituents (R) in tuning the SCO of the complexes is elucidated.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
| | - Sergi Vela
- Laboratoire de Chimie Quantique, Institut de Chimie, UMR 7177 CNRS-Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg, France.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
| | - Nithin Suryadevara
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
| | - Lydia Karmazin
- Service de Radiocristallographie, Fédération de Chimie Le Bel, FR2010 CNRS-Université de Strasbourg, 1 rue Blaise Pascal, BP 296/R8, 67008 Strasbourg Cedex, France
| | - Corinne Bailly
- Service de Radiocristallographie, Fédération de Chimie Le Bel, FR2010 CNRS-Université de Strasbourg, 1 rue Blaise Pascal, BP 296/R8, 67008 Strasbourg Cedex, France
| | - Mario Ruben
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS-Université de Strasbourg, 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France. and Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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9
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Vicente AI, Wu X, Ortin Y, Ferreira LP, Carvalho MDD, Realista S, Barker A, Morgan GG, Galamba N, Costa PJ, Calhorda MJ, Martinho PN. Directing self-assembly in solution towards improved cooperativity in Fe(iii) complexes with amphiphilic tridentate ligands. Dalton Trans 2019; 48:4239-4247. [PMID: 30843914 DOI: 10.1039/c9dt00032a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An amphiphilic iron(iii) complex with a tridentate Schiff-base ligand was prepared by condensation of a hexadecyloxy functionalised salycylaldehyde with a diamine followed by complexation with FeCl2 and anion methathesis with NaClO4. The complex shows spin crossover both in the solid state and solution. However in solution self-assembly and consequently aggregation of individual molecules form concentration dependent particles with sizes of 300 nm for higher concentrations, or 5 nm for lower concentrations. Aggregate formation was confirmed by NANO-flex 180° DLS Size, scan-rate dependent cyclic voltammetry and scanning electron microscopy. Molecular simulations were used to investigate the self-assembly of the complex in solution, including the role of residual water molecules. The simulations showed the self-assembly of reverse micelle-like structures when a small water cluster is inserted in solution, whereas no large aggregates formed in dehydrated environments. The perchlorate anions were found near the metal centres, stabilizing the aggregates around the water pool. Simulations of pre-assembled structures further showed the lack of stability of large aggregates in the absence of water. The larger aggregates promoted efficient communication between the iron(iii) centres and the compound displayed spin crossover in solution at around 220 K with a 10 K hysteresis window, as measured by NMR and SQUID magnetometry.
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Affiliation(s)
- Ana I Vicente
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa Campo Grande, 1749-016 Lisboa, Portugal.
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10
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Weihermüller J, Schlamp S, Dittrich B, Weber B. Kinetic Trapping Effects in Amphiphilic Iron(II) Spin Crossover Compounds. Inorg Chem 2019; 58:1278-1289. [DOI: 10.1021/acs.inorgchem.8b02763] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Stephan Schlamp
- Department of Chemistry, University of Bayreuth, 95440 Bayreuth, Germany
| | - Birger Dittrich
- Anorganische Chemie und Strukturchemie II, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Birgit Weber
- Department of Chemistry, University of Bayreuth, 95440 Bayreuth, Germany
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11
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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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12
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13
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Blagov MA, Krapivin VB, Simonov SV, Spitsyna NG. Insights into the influence of ethylene group orientation on the iron(iii) spin state in the spin crossover complex [Fe III(Sal 2-trien)] . Dalton Trans 2018; 47:16040-16043. [PMID: 30387800 DOI: 10.1039/c8dt03619e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The DFT calculations of the spin crossover complex [FeIII(Sal2-trien)]+ (1) with the following classification of conformers of 1 were performed. The study shows that rearrangements of ethylene group orientation in a coordinated ligand lead to the stabilization of the high-spin or low-spin iron(iii) state.
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Affiliation(s)
- Maxim A Blagov
- Institute of Problems of Chemical Physics RAS, prosp. Acad. Semenova 1, 142432 Moscow region, Chernogolovka, Russia.
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14
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15
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Dankhoff K, Schneider S, Nowak R, Weber B. Iron(II) and Iron(III) Complexes of Tridentate NNO
Schiff Base-like Ligands - X-ray Structures and Magnetic Properties. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Katja Dankhoff
- Department Chemie; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - René Nowak
- Department Chemie; Universität Bayreuth; 95440 Bayreuth Germany
| | - Birgit Weber
- Department Chemie; Universität Bayreuth; 95440 Bayreuth Germany
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16
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Struch N, Bannwarth C, Ronson TK, Lorenz Y, Mienert B, Wagner N, Engeser M, Bill E, Puttreddy R, Rissanen K, Beck J, Grimme S, Nitschke JR, Lützen A. An Octanuclear Metallosupramolecular Cage Designed To Exhibit Spin-Crossover Behavior. Angew Chem Int Ed Engl 2017; 56:4930-4935. [DOI: 10.1002/anie.201700832] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Niklas Struch
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Christoph Bannwarth
- Mulliken Center for Theoretical Chemistry; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Tanya K. Ronson
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Yvonne Lorenz
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Bernd Mienert
- Max-Planck-Institut für Chemische Energiekonversion; Stiftstrasse 34-36 45470 Mülheim a. d. Ruhr Germany
| | - Norbert Wagner
- Institut für Anorganische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Marianne Engeser
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion; Stiftstrasse 34-36 45470 Mülheim a. d. Ruhr Germany
| | - Rakesh Puttreddy
- University of Jyvaskyla; Department of Chemistry; Nanoscience Center; P.O. Box 34 40014 Jyvaskyla Finland
| | - Kari Rissanen
- University of Jyvaskyla; Department of Chemistry; Nanoscience Center; P.O. Box 34 40014 Jyvaskyla Finland
| | - Johannes Beck
- Institut für Anorganische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstrasse 4 53115 Bonn Germany
| | - Jonathan R. Nitschke
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Arne Lützen
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Strasse 1 53121 Bonn Germany
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17
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Struch N, Bannwarth C, Ronson TK, Lorenz Y, Mienert B, Wagner N, Engeser M, Bill E, Puttreddy R, Rissanen K, Beck J, Grimme S, Nitschke JR, Lützen A. Ein achtkerniger metallosupramolekularer Würfel mit Spin-Crossover-Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700832] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Niklas Struch
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
| | - Christoph Bannwarth
- Mulliken Center for Theoretical Chemistry; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstraße 4 53115 Bonn Deutschland
| | - Tanya K. Ronson
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW Großbritannien
| | - Yvonne Lorenz
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
| | - Bernd Mienert
- Max-Planck-Institut für Chemische Energiekonversion; Stiftstraße 34-36 45470 Mülheim a. d. Ruhr Deutschland
| | - Norbert Wagner
- Institut für Anorganische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
| | - Marianne Engeser
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion; Stiftstraße 34-36 45470 Mülheim a. d. Ruhr Deutschland
| | - Rakesh Puttreddy
- University of Jyvaskyla; Department of Chemistry; Nanoscience Center; P.O. Box 34 40014 Jyvaskyla Finnland
| | - Kari Rissanen
- University of Jyvaskyla; Department of Chemistry; Nanoscience Center; P.O. Box 34 40014 Jyvaskyla Finnland
| | - Johannes Beck
- Institut für Anorganische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstraße 4 53115 Bonn Deutschland
| | - Jonathan R. Nitschke
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW Großbritannien
| | - Arne Lützen
- Kekulé-Institut für Organische Chemie und Biochemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Deutschland
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18
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Luo YH, Wen GJ, Gu LS, Wang MN, Sun BW. Study of spin crossover in an iron(II) tris(diimine) system tuned by counter anions. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Luo YH, Chen L, Wang JW, Wang MX, Zhang YW, Sun BW. Ligand field tuned spin crossover for an iron(II)-di(diamine) system. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.05.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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21
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Fitzpatrick AJ, O'Connor HM, Morgan GG. A room temperature spin crossover ionic liquid. Dalton Trans 2015; 44:20839-42. [DOI: 10.1039/c5dt04264j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two new paramagnetic ionic liquids (ILs) comprising a mononuclear iron(iii) or manganese(iii) complex cation, charge balanced by a dicyanamide anion are reported which show a range of spin states including spin crossover.
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22
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Schlamp S, Lochenie C, Bauer T, Kempe R, Weber B. Iron(II) Spin‐Crossover Complexes with Schiff Base Like Ligands and
N
‐Alkylimidazoles. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201403021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stephan Schlamp
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth, Germany, http://www.ac2‐weber.uni‐bayreuth.de
| | - Charles Lochenie
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth, Germany, http://www.ac2‐weber.uni‐bayreuth.de
| | - Tobias Bauer
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth, Germany, http://www.ac2‐weber.uni‐bayreuth.de
| | - Rhett Kempe
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth, Germany, http://www.ac2‐weber.uni‐bayreuth.de
| | - Birgit Weber
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth, Germany, http://www.ac2‐weber.uni‐bayreuth.de
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Abstract
The study of spin crossover compounds by means of theoretical or experimental approaches has provided interesting results in recent decades. The main feature of such compounds is the change in the spin state induced by many different external stimuli, i.e. temperature, light, pressure, solvent coordination and the electric field. Spin crossover systems are potentially more useful than other magnetic molecules because their switching behaviour can occur closer to room temperature, and they are thus candidates for use in spintronic devices. Here, I review the state of the art in quantum chemical approaches to the study of such systems and discuss experiments that have focused on transport properties in single-molecule, nano-objects or thin-film spin crossover systems.
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Affiliation(s)
- Eliseo Ruiz
- Departament de Química Inorgànica and Centre de Recerca en Química Teòrica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain.
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24
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Solution and solid state properties of Fe(III) complexes bearing N-ethyl-N-(2-aminoethyl)salicylaldiminate ligands. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.12.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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26
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Schlamp S, Thoma P, Weber B. Influence of the Alkyl Chain Length on the Self‐Assembly of Amphiphilic Iron Complexes: An Analysis of X‐ray Structures. Chemistry 2014; 20:6462-73. [DOI: 10.1002/chem.201304653] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 02/04/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Stephan Schlamp
- Inorganic Chemistry II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth (Germany)
| | - Peter Thoma
- Inorganic Chemistry II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth (Germany)
| | - Birgit Weber
- Inorganic Chemistry II, Universität Bayreuth, Universitätsstraße 30, NW 1, 95440 Bayreuth (Germany)
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27
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Barrett SA, Halcrow MA. Anion-dependent spin crossover in solution for an iron(ii) complex of a 1H-pyrazolyl ligand. RSC Adv 2014. [DOI: 10.1039/c4ra00230j] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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28
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Dommaschk M, Schütt C, Venkataramani S, Jana U, Näther C, Sönnichsen FD, Herges R. Rational design of a room temperature molecular spin switch. The light-driven coordination induced spin state switch (LD-CISSS) approach. Dalton Trans 2014; 43:17395-405. [DOI: 10.1039/c4dt03048f] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A record player type molecule changes spin state reversibly upon irradiation with green and blue light in solution at room temperature without measureable fatigue.
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Affiliation(s)
- M. Dommaschk
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität
- D-24098 Kiel, Germany
| | - C. Schütt
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität
- D-24098 Kiel, Germany
| | - S. Venkataramani
- Indian Institute for Science Education and Research (IISER) Mohali
- Manauli PO 140306, India
| | - U. Jana
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
| | - C. Näther
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität
- 24098 Kiel, Germany
| | - F. D. Sönnichsen
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität
- D-24098 Kiel, Germany
| | - R. Herges
- Otto-Diels-Institut für Organische Chemie
- Christian-Albrechts-Universität
- D-24098 Kiel, Germany
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29
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Shigeno M, Kushida Y, Yamaguchi M. Molecular Thermal Hysteresis in Helix-Dimer Formation of Sulfonamidohelicene Oligomers in Solution. Chemistry 2013; 19:10226-34. [DOI: 10.1002/chem.201204556] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 04/22/2013] [Indexed: 11/08/2022]
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30
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Craig GA, Costa JS, Roubeau O, Teat SJ, Aromí G. An FeIISpin-Crossover Complex Becomes Increasingly Cooperative with Ageing. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Martinho PN, Gildea B, Harris MM, Lemma T, Naik AD, Müller-Bunz H, Keyes TE, Garcia Y, Morgan GG. Cooperative Spin Transition in a Mononuclear Manganese(III) Complex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205573] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Martinho PN, Gildea B, Harris MM, Lemma T, Naik AD, Müller-Bunz H, Keyes TE, Garcia Y, Morgan GG. Cooperative Spin Transition in a Mononuclear Manganese(III) Complex. Angew Chem Int Ed Engl 2012; 51:12597-601. [PMID: 23129209 DOI: 10.1002/anie.201205573] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 08/28/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Paulo N Martinho
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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33
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Martinho PN, Lemma T, Gildea B, Picardi G, Müller-Bunz H, Forster RJ, Keyes TE, Redmond G, Morgan GG. Template Assembly of Spin Crossover One-Dimensional Nanowires. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Martinho PN, Lemma T, Gildea B, Picardi G, Müller-Bunz H, Forster RJ, Keyes TE, Redmond G, Morgan GG. Template Assembly of Spin Crossover One-Dimensional Nanowires. Angew Chem Int Ed Engl 2012; 51:11995-9. [DOI: 10.1002/anie.201205122] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 09/20/2012] [Indexed: 11/06/2022]
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