1
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Temperature dynamics of magnetoactive compounds under terahertz irradiation: characterization by an EPR study. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3543-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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2
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Achieving large thermal hysteresis in an anthracene-based manganese(II) complex via photo-induced electron transfer. Nat Commun 2022; 13:2646. [PMID: 35551184 PMCID: PMC9098415 DOI: 10.1038/s41467-022-30425-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/29/2022] [Indexed: 11/16/2022] Open
Abstract
Achieving magnetic bistability with large thermal hysteresis is still a formidable challenge in material science. Here we synthesize a series of isostructural chain complexes using 9,10-anthracene dicarboxylic acid as a photoactive component. The electron transfer photochromic Mn2+ and Zn2+ compounds with photogenerated diradicals are confirmed by structures, optical spectra, magnetic analyses, and density functional theory calculations. For the Mn2+ analog, light irradiation changes the spin topology from a single Mn2+ ion to a radical-Mn2+ single chain, further inducing magnetic bistability with a remarkably wide thermal hysteresis of 177 K. Structural analysis of light irradiated crystals at 300 and 50 K reveals that the rotation of the anthracene rings changes the Mn1–O2–C8 angle and coordination geometries of the Mn2+ center, resulting in magnetic bistability with this wide thermal hysteresis. This work provides a strategy for constructing molecular magnets with large thermal hysteresis via electron transfer photochromism. Achieving magnetic bistability with large thermal hysteresis is still a challenge in material science. Here, the authors report a Mn(II) chain complex that enables light-induced magnetic bistability with a 177 K thermal hysteresis loop.
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3
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Kulmaczewski R, Kershaw Cook LJ, Pask CM, Cespedes O, Halcrow MA. Iron(II) Complexes of 4-(Alkyldisulfanyl)-2,6-di(pyrazolyl)pyridine Derivatives. Correlation of Spin-Crossover Cooperativity with Molecular Structure Following Single-Crystal-to-Single-Crystal Desolvation. CRYSTAL GROWTH & DESIGN 2022; 22:1960-1971. [PMID: 35431660 PMCID: PMC9007408 DOI: 10.1021/acs.cgd.2c00005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The complex salts [Fe(L 1)2]X2 (1X 2 ; L 1 = 4-(isopropyldisulfanyl)-2,6-bis(pyrazolyl)pyridine; X- = BF4 -, ClO4 -) form solvated crystals from common organic solvents. Crystals of 1X 2 ·Me2CO show abrupt spin transitions near 160 K, with up to 22 K thermal hysteresis. 1X 2 ·Me2CO cocrystallizes with other, less cooperative acetone solvates, which all transform into the same solvent-free materials 1X 2 ·sf upon exposure to air, or mild heating. Conversion of 1X 2 ·Me2CO to 1X 2 ·sf proceeds in a single-crystal to single-crystal fashion. 1X 2 ·sf are not isomorphous with the acetone solvates, and exhibit abrupt spin transitions at low temperature with hysteresis loops of 30-38 K (X- = BF4 -) and 10-20 K (X- = ClO4 -), depending on the measurement method. Interestingly, the desolvation has an opposite effect on the SCO temperature and hysteresis in the two salts. The hysteretic spin transitions in 1X 2 ·Me2CO and 1X 2 ·sf do not involve a crystallographic phase change but are accompanied by a significant rearrangement of the metal coordination sphere. Other solvates 1X 2 ·MeNO2, 1X 2 ·MeCN, and 1X 2 ·H2O are mostly isomorphous with each other and show more gradual spin-crossover equilibria near room temperature. All three of these lattice types have similar unit cell dimensions and contain cations associated into chains through pairwise, intermolecular S···π interactions. Polycrystalline [Fe(L 2)2][BF4]2·MeNO2 (2[BF 4 ] 2 ·MeNO2; L 2 = 4-(methyldisulfanyl)-2,6-bis(pyrazolyl)pyridine) shows an abrupt spin transition just above room temperature, with an unsymmetrical and structured hysteresis loop, whose main features are reversible upon repeated thermal scanning.
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Affiliation(s)
- Rafal Kulmaczewski
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | | | - Christopher M. Pask
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Oscar Cespedes
- School
of Physics and Astronomy, University of
Leeds, E. C. Stoner
Building, Leeds LS2 9JT, U.K.
| | - Malcolm A. Halcrow
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
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4
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Kiehl J, Hochdörffer T, Carrella LM, Schünemann V, Nygaard MH, Overgaard J, Rentschler E. Pronounced Magnetic Bistability in Highly Cooperative Mononuclear [Fe(L npdtz) 2(NCX) 2] Complexes. Inorg Chem 2022; 61:3141-3151. [PMID: 35142508 DOI: 10.1021/acs.inorgchem.1c03491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular materials that exhibit stimuli-responsive bistability are promising candidates for the development of molecular switches and sensors. We herein report on the coexistence of a wide thermal hysteretic spin crossover (SCO) effect and a thermally inducible metastable high-spin state at low temperatures achieved with the two new complexes [FeII(Lnpdtz)2(NCX)2] (X = S; Se), with Lnpdtz being (2-naphthyl-5-pyridyl-1,2,4-thiadiazole) and X = S (1) and Se (2). Pronounced π-π-stacking of the aromatic side residues of the ligands enables strong intermolecular interactions, leading to abrupt SCO properties and broad magnetic hysteresis of 10 K for X = S and 58 K for X = Se. In this paper, we also present the pressure-induced spin-state switching around 0.8 GPa. A pronounced thermally induced excited spin state trapping (TIESST effect) is observed for the highly cooperative SCO compounds, which was experimentally followed by low-temperature single crystal structure analysis (20 K) and temperature-dependent Mössbauer spectroscopy.
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Affiliation(s)
- Jonathan Kiehl
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Tim Hochdörffer
- Department of Physics, Technische Universität Kaiserslautern, Erwin-Schroedinger-Str. 46, D-67663 Kaiserslautern, Germany
| | - Luca M Carrella
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Volker Schünemann
- Department of Physics, Technische Universität Kaiserslautern, Erwin-Schroedinger-Str. 46, D-67663 Kaiserslautern, Germany
| | - Mathilde H Nygaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus, Denmark
| | - Jacob Overgaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus, Denmark
| | - Eva Rentschler
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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5
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Nößler M, Hunger D, Neuman NI, Reimann M, Reichert F, Winkler M, Klein J, Bens T, Suntrup L, Demeshko S, Stubbe J, Kaupp M, van Slageren J, Sarkar B. Fluorinated Click-Derived Tripodal Ligands Drive Spin Crossover in both Iron(II) and Cobalt(II) Complexes. Dalton Trans 2022; 51:10507-10517. [DOI: 10.1039/d2dt01005d] [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
Control of the spin state of metal complexes is important because it leads to a precise control over the physical properties and the chemical reactivity of the metal complexes. Currently,...
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6
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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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7
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Jornet-Mollá V, Giménez-Saiz C, Vieira BJC, Waerenborgh JC, Romero FM. Temperature dependence of desolvation effects in hydrogen-bonded spin crossover complexes. Dalton Trans 2021; 50:2536-2544. [PMID: 33522546 DOI: 10.1039/d0dt03986a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis, crystal structure and (photo)magnetic properties of the anhydrous spin crossover salt of formula [Fe(bpp)2](C6H8O4) (1) (bpp = 2,6-bis(pyrazol-3-yl)pyridine; C6H8O4 = adipate dianion), obtained by desolvation at 400 K of the original tetrahydrate in a single-crystal-to-single-crystal (SC-SC) transformation, are reported. This work offers a comparison between this compound and the previously reported hydrated material ([Fe(bpp)2](C6H8O4)·4H2O, 1·4H2O), highlighting the significance of the thermal conditions used in the dehydration-rehydration processes. In both compounds, a hydrogen-bonded network between iron(ii) complexes and adipate anions is observed. The original tetrahydrate (1·4H2O) is low-spin and desolvation at 450 K triggers a low-spin (LS) to high-spin (HS) transition to an amorphous phase that remains stable over the whole temperature range of study. Surprisingly, the dehydrated compound at 400 K (1) keeps the crystallinity, undergoes a partial spin crossover (T1/2 = 180 K) and a quantitative LS to HS photomagnetic conversion at low temperatures, with a T(LIESST) value of 61 K.
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Affiliation(s)
- Verónica Jornet-Mollá
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Spain.
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8
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Jornet-Mollá V, Giménez-Saiz C, Yufit DS, Howard JAK, Romero FM. A Reversible Hydrogen-Bond Isomerization Triggered by an Abrupt Spin Crossover near Room Temperature. Chemistry 2021; 27:740-750. [PMID: 32812653 DOI: 10.1002/chem.202003654] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 11/10/2022]
Abstract
The spin crossover salt [Fe(bpp)2 ](isonicNO)2 ⋅ 2.4 H2 O (1⋅2.4 H2 O) (bpp=2,6-bis(pyrazol-3-yl)pyridine; isonicNO=isonicotinate N-oxide anion) exhibits a very abrupt spin crossover at T1/2 =274.4 K. This triggers a supramolecular linkage (H-bond) isomerization that responds reversibly towards light irradiation or temperature change. Isotopic effects in the thermomagnetic behavior reveal the importance of hydrogen bonds in defining the magnetic state. Further, the title compound can be reversibly dehydrated to afford 1, a material that also exhibits spin crossover coupled to H-bond isomerization, leading to strong kinetic effects in the thermomagnetic properties.
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Affiliation(s)
- Verónica Jornet-Mollá
- Instituto de Ciencia Molecular, Universitat de València, P. O. Box 22085, 46071, Valencia, Spain
| | - Carlos Giménez-Saiz
- Instituto de Ciencia Molecular, Universitat de València, P. O. Box 22085, 46071, Valencia, Spain
| | - Dmitry S Yufit
- Department of Chemistry, Durham University, Durham, DH1 3LE, UK
| | | | - Francisco M Romero
- Instituto de Ciencia Molecular, Universitat de València, P. O. Box 22085, 46071, Valencia, Spain
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9
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Sugiyarto KH, Onggo D, Akutsu H, Reddy VR, Sutrisno H, Nakazawa Y, Bhattacharjee A. Structural, magnetic and Mössbauer spectroscopic studies of the [Fe(3-bpp) 2](CF 3COO) 2 complex: role of crystal packing leading to an incomplete Fe( ii) high spin ⇋ low spin transition. CrystEngComm 2021. [DOI: 10.1039/d0ce01687j] [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
Mononuclear complex [Fe(3-bpp)2](CF3COO)2 exhibits a thermal (HS + HS) ⇋ (HS + LS) transition at ∼226 K which is not associated with any crystallographic transition.
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Affiliation(s)
| | - Djulia Onggo
- Inorganic and Physical Chemistry Research Division
- Institut Teknologi
- Bandung
- Indonesia
| | - Hiroki Akutsu
- Graduate School of Science
- Osaka University
- Osaka
- Japan
| | | | - Hari Sutrisno
- Department of Chemistry Education
- Yogyakarta State University
- Indonesia
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10
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Djemel A, Stefańczyk O, Desplanches C, Kumar K, Delimi R, Benaceur F, Ohkoshi SI, Chastanet G. Switching on thermal and light-induced spin crossover by desolvation of the [Fe(3-bpp)2](XO4)2·solvent (X = Cl, Re) compounds. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00446h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal desolvation is a very attractive method for post-synthetic modification of the physico-chemical properties of switchable materials. In this field of research, special attention is paid to the possibility of...
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11
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Pask CM, Greatorex S, Kulmaczewski R, Baldansuren A, McInnes EJL, Bamiduro F, Yamada M, Yoshinari N, Konno T, Halcrow MA. Elucidating the Structural Chemistry of a Hysteretic Iron(II) Spin-Crossover Compound From its Copper(II) and Zinc(II) Congeners. Chemistry 2020; 26:4833-4841. [PMID: 32017244 DOI: 10.1002/chem.202000101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Indexed: 11/12/2022]
Abstract
Annealing [FeL2 ][BF4 ]2 ⋅2 H2 O (L=2,6-bis-[5-methyl-1H-pyrazol-3-yl]pyridine) affords an anhydrous material, which undergoes a spin transition at T1/2 =205 K with a 65 K thermal hysteresis loop. This occurs through a sequence of phase changes, which were monitored by powder diffraction in an earlier study. [CuL2 ][BF4 ]2 ⋅2 H2 O and [ZnL2 ][BF4 ]2 ⋅2 H2 O are not perfectly isostructural but, unlike the iron compound, they undergo single-crystal-to-single-crystal dehydration upon annealing. All the annealed compounds initially adopt the same tetragonal phase but undergo a phase change near room temperature upon re-cooling. The low-temperature phase of [CuL2 ][BF4 ]2 involves ordering of its Jahn-Teller distortion, to a monoclinic lattice with three unique cation sites. The zinc compound adopts a different, triclinic low-temperature phase with significant twisting of its coordination sphere, which unexpectedly becomes more pronounced as the crystal is cooled. Synchrotron powder diffraction data confirm that the structural changes in the anhydrous zinc complex are reproduced in the high-spin iron compound, before the onset of spin-crossover. This will contribute to the wide hysteresis in the spin transition of the iron complex. EPR spectra of copper-doped [Fe0.97 Cu0.03 L2 ][BF4 ]2 imply its low-spin phase contains two distinct cation environments in a 2:1 ratio.
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Affiliation(s)
- Christopher M Pask
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Sam Greatorex
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Amgalanbaatar Baldansuren
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,current address: Chemistry and Chemical Biology, 120 Cogswell, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY, 12180, USA
| | - Eric J L McInnes
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Faith Bamiduro
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Mihoko Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan.,current address: Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.,Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
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12
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Abhervé A, Martin K, Hauser A, Avarvari N. Helicene Bis(pyrazol-1-yl)pyridine Ligands for Luminescent Transition-Metal Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900870] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandre Abhervé
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Kévin Martin
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
| | - Andreas Hauser
- Department of Physical Chemistry; University of Geneva; 30 Quai Ernest-Ansermet 1211 Geneva Switzerland
| | - Narcis Avarvari
- MOLTECH-Anjou, UMR 6200; CNRS, UNIV Angers; 2 bd Lavoisier 49045 ANGERS Cedex France
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13
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García-López V, Palacios-Corella M, Gironés-Pérez V, Bartual-Murgui C, Real JA, Pellegrin E, Herrero-Martín J, Aromí G, Clemente-León M, Coronado E. Heteroleptic Iron(II) Spin-Crossover Complexes Based on a 2,6-Bis(pyrazol-1-yl)pyridine-type Ligand Functionalized with a Carboxylic Acid. Inorg Chem 2019; 58:12199-12208. [DOI: 10.1021/acs.inorgchem.9b01526] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Víctor García-López
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Mario Palacios-Corella
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Verónica Gironés-Pérez
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Carlos Bartual-Murgui
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - José Antonio Real
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Eric Pellegrin
- ALBA Synchrotron Light Source, 08290 Cerdanyola del Vallès, Barcelona, Spain
| | | | - Guillem Aromí
- Departament de Química Inorgànica i Orgànica, Universitat de Barcelona and Institute of Nanoscience and Nanotechnology, Diagonal 645, 08028 Barcelona, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain
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15
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Synthesis, Structure, and Photomagnetic Properties of a Hydrogen-Bonded Lattice of [Fe(bpp)2]2+ Spin-Crossover Complexes and Nicotinate Anions. CRYSTALS 2018. [DOI: 10.3390/cryst8110439] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this paper, we report on the synthesis, crystal structure, and photomagnetic properties of the spin-crossover salt of formula [Fe(bpp)2](C6H4NO2)2·4H2O (1·4H2O) (bpp = 2,6-bis(pyrazol-3-yl)pyridine; C6H4NO2− = nicotinate anion). This compound exhibits a 3D supramolecular architecture built from hydrogen bonds between iron(II) complexes, nicotinate anions, and water molecules. As synthesized, the hydrated material is low-spin and desolvation triggers a low-spin (LS) to high-spin (HS) transformation. Anhydrous phase 1 undergoes a partial spin crossover (T1/2= 281 K) and a LS to HS photomagnetic conversion with a T(LIESST) value of 56 K.
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16
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Djemel A, Stefanczyk O, Marchivie M, Trzop E, Collet E, Desplanches C, Delimi R, Chastanet G. Solvatomorphism-Induced 45 K Hysteresis Width in a Spin-Crossover Mononuclear Compound. Chemistry 2018; 24:14760-14767. [DOI: 10.1002/chem.201802572] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Abdelhak Djemel
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer Pessac 33608 France
- Laboratoire de Traitement des Eaux et Valorisation des Déchets Industriels; Université Badji Mokhtar; Annaba Algérie
| | - Olaf Stefanczyk
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer Pessac 33608 France
| | - Mathieu Marchivie
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer Pessac 33608 France
| | - Elzbieta Trzop
- Univ Rennes 1; CNRS; Institut de Physique de Rennes, UMR 6251; 35042 Rennes France
| | - Eric Collet
- Univ Rennes 1; CNRS; Institut de Physique de Rennes, UMR 6251; 35042 Rennes France
| | - Cédric Desplanches
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer Pessac 33608 France
| | - Rachid Delimi
- Laboratoire de Traitement des Eaux et Valorisation des Déchets Industriels; Université Badji Mokhtar; Annaba Algérie
| | - Guillaume Chastanet
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer Pessac 33608 France
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17
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Giménez-López MDC, Clemente-León M, Giménez-Saiz C. Unravelling the spin-state of solvated [Fe(bpp) 2] 2+ spin-crossover complexes: structure-function relationship. Dalton Trans 2018; 47:10453-10462. [PMID: 29789828 DOI: 10.1039/c8dt01269e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This paper reports firstly the syntheses, crystal structures, and thermal and magnetic properties of spin crossover salts of formulae [Fe(bpp)2]3[Cr(CN)6]2·13H2O (1) and [Fe(bpp)2][N(CN)2]2·H2O (2) (bpp = 2,6-bis(pyrazol-3-yl)pyridine) exhibiting hydrogen-bonded networks of low-spin [Fe(bpp)2]2+ complexes and [Cr(CN)6]3- or [N(CN)2]- anions, with solvent molecules located in the voids. Desolvation of 1 is accompanied by a complete low-spin (LS) to a high-spin (HS) transformation that becomes reversible after rehydration by exposing the sample to the humidity of air. The influence of the lattice water on the magnetic properties of spin-crossover [Fe(bpp)2]X2 complex salts has been documented. In most cases, it stabilises the LS state over the HS one. In other cases, it is rather the contrary. The second part of this paper is devoted to unravelling the reasons why the lattice solvent stabilises one form over the other through magneto-structural correlations of [Fe(bpp)2]2+ salts bearing anions with different charge/size ratios (Xn-). The [Fe(bpp)2]2+ stacking explaining these two different behaviours is correlated here with the composition of the second coordination sphere of the Fe centers and the ability of these anions to form hydrogen bonds and/or π-π stacking interactions between them or the bpp ligand.
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Affiliation(s)
- Maria Del Carmen Giménez-López
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular, Universidad de Valencia, P.O. Box 22085, 46071 Valencia, Spain
| | - Carlos Giménez-Saiz
- Instituto de Ciencia Molecular, Universidad de Valencia, P.O. Box 22085, 46071 Valencia, Spain
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18
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Abstract
Non-isothermal kinetic studies of spin crossover allow establishing a reaction model of hysteretic spin state switching.
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Affiliation(s)
- Mark B Bushuev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
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19
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García-López V, Palacios-Corella M, Abhervé A, Pellicer-Carreño I, Desplanches C, Clemente-León M, Coronado E. Spin-crossover compounds based on iron(ii) complexes of 2,6-bis(pyrazol-1-yl)pyridine (bpp) functionalized with carboxylic acid and ethyl carboxylic acid. Dalton Trans 2018; 47:16958-16968. [DOI: 10.1039/c8dt03511c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New salts of the iron(ii) bppCOOH and bppCOOEt spin crossover complexes have been studied.
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Affiliation(s)
- Víctor García-López
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
| | | | - Alexandre Abhervé
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
| | | | | | | | - Eugenio Coronado
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna
- Spain
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20
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Polymorphs of spin-crossover iron(II) complex fac -[Fe II (HL n -Pr ) 3 ]Cl·PF 6 (HL n -Pr = 2-methylimidazol-4-yl-methylideneamino- n -propyl): Assembly structures and scan rate dependent spin-crossover properties with thermal hysteresis. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Bushuev MB, Nikolaenkova EB, Krivopalov VP. Non-isothermal kinetics of spin crossover. Phys Chem Chem Phys 2017. [DOI: 10.1039/c7cp03442c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-isothermal magnetic studies can be used to estimate the activation energy of cooperative spin transition.
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Affiliation(s)
- Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Elena B. Nikolaenkova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Viktor P. Krivopalov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
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22
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Abhervé A, Recio-Carretero MJ, López-Jordà M, Clemente-Juan JM, Canet-Ferrer J, Cantarero A, Clemente-León M, Coronado E. Nonanuclear Spin-Crossover Complex Containing Iron(II) and Iron(III) Based on a 2,6-Bis(pyrazol-1-yl)pyridine Ligand Functionalized with a Carboxylate Group. Inorg Chem 2016; 55:9361-7. [DOI: 10.1021/acs.inorgchem.6b01508] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexandre Abhervé
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - María José Recio-Carretero
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Maurici López-Jordà
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Juan Modesto Clemente-Juan
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Josep Canet-Ferrer
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Andrés Cantarero
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular
(ICMol), Universidad de Valencia, Catedrático José Beltrán
2, 46980 Paterna, Spain
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23
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Dîrtu MM, Naik AD, Rotaru A, Spinu L, Poelman D, Garcia Y. FeII Spin Transition Materials Including an Amino–Ester 1,2,4-Triazole Derivative, Operating at, below, and above Room Temperature. Inorg Chem 2016; 55:4278-95. [DOI: 10.1021/acs.inorgchem.6b00015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marinela M. Dîrtu
- Institute
of Condensed Matter and Nanosciences, Molecules, Solids and Reactivity, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Anil D. Naik
- Institute
of Condensed Matter and Nanosciences, Molecules, Solids and Reactivity, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Aurelian Rotaru
- Department of Electrical Engineering and Computer Science & MANSiD Research Center, “Stefan cel Mare” University, University Street, 13, Suceava 720229 Romania
| | - Leonard Spinu
- Advanced
Materials Research Institute, Department of Physics, University of New Orleans (UNO), New Orleans, Louisiana 70148 United States
| | - Dirk Poelman
- Lumilab
Department Solid State Sciences, Ghent University, Krijgslaan 281, S1, B-9000 Gent, Belgium
| | - Yann Garcia
- Institute
of Condensed Matter and Nanosciences, Molecules, Solids and Reactivity, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
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24
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Zhu YY, Li HQ, Ding ZY, Lü XJ, Zhao L, Meng YS, Liu T, Gao S. Spin transitions in a series of [Fe(pybox)2]2+ complexes modulated by ligand structures, counter anions, and solvents. Inorg Chem Front 2016. [DOI: 10.1039/c6qi00417b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of mononuclear Fe(ii) compounds is synthesized based on pybox ligands. Their spin-crossover behaviours can be effectively mediated by ligand structures, counter anions, and solvents.
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Affiliation(s)
- Yuan-Yuan Zhu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Hong-Qing Li
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Zhong-Yu Ding
- School of Chemistry and Chemical Engineering
- Hefei University of Technology and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Xiao-Jin Lü
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- China
| | - Yin-Shan Meng
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Tao Liu
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology
- Dalian 116024
- China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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25
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Bushuev MB, Pishchur DP, Logvinenko VA, Gatilov YV, Korolkov IV, Shundrina IK, Nikolaenkova EB, Krivopalov VP. A mononuclear iron(ii) complex: cooperativity, kinetics and activation energy of the solvent-dependent spin transition. Dalton Trans 2016; 45:107-20. [DOI: 10.1039/c5dt03750f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A mononuclear iron(ii) pyrimidine-based complex shows remarkable spin crossover properties and unprecedented thermal robustness.
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Affiliation(s)
- Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Denis P. Pishchur
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Vladimir A. Logvinenko
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Yuri V. Gatilov
- Novosibirsk State University
- Novosibirsk
- Russia
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
| | - Ilya V. Korolkov
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Inna K. Shundrina
- Novosibirsk State University
- Novosibirsk
- Russia
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
| | - Elena B. Nikolaenkova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Viktor P. Krivopalov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
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26
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Jornet-Mollá V, Duan Y, Giménez-Saiz C, Waerenborgh JC, Romero FM. Hydrogen-bonded networks of [Fe(bpp)2]2+spin crossover complexes and dicarboxylate anions: structural and photomagnetic properties. Dalton Trans 2016; 45:17918-17928. [DOI: 10.1039/c6dt02934e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Bushuev MB, Pishchur DP, Nikolaenkova EB, Krivopalov VP. Compensation effects and relation between the activation energy of spin transition and the hysteresis loop width for an iron(ii) complex. Phys Chem Chem Phys 2016; 18:16690-9. [DOI: 10.1039/c6cp01892k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Wide thermal hysteresis loops for iron(ii) spin crossover complexes are associated with high activation barriers: the higher the activation barrier, the wider the hysteresis loop for a series of related spin crossover systems.
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Affiliation(s)
- Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
- Novosibirsk State University
| | - Denis P. Pishchur
- Nikolaev Institute of Inorganic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Elena B. Nikolaenkova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Viktor P. Krivopalov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Siberian Branch of Russian Academy of Sciences
- Novosibirsk
- Russia
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28
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Thermal and Light-Induced Spin Transitions of FeIIComplexes with 4- and 5-(Phenylazo)-2,2′-bipyridine Ligands: Intra- vs. Intermolecular Effects. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501252] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Fujinami T, Nishi K, Hamada D, Murakami K, Matsumoto N, Iijima S, Kojima M, Sunatsuki Y. Scan Rate Dependent Spin Crossover Iron(II) Complex with Two Different Relaxations and Thermal Hysteresis fac-[FeII(HLn-Pr)3]Cl·PF6 (HLn-Pr = 2-Methylimidazol-4-yl-methylideneamino-n-propyl). Inorg Chem 2015. [DOI: 10.1021/acs.inorgchem.5b00701] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takeshi Fujinami
- Department of Chemistry,
Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Koshiro Nishi
- Department of Chemistry,
Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Daisuke Hamada
- Department of Chemistry,
Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Keishiro Murakami
- Department of Chemistry,
Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Naohide Matsumoto
- Department of Chemistry,
Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan
| | - Seiichiro Iijima
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8566, Japan
| | - Masaaki Kojima
- Department of Chemistry,
Faculty of Science, Okayama University, Tsushima-naka 3-1-1, Okayama 700-8530, Japan
| | - Yukinari Sunatsuki
- Department of Chemistry,
Faculty of Science, Okayama University, Tsushima-naka 3-1-1, Okayama 700-8530, Japan
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30
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Kershaw Cook LJ, Thorp-Greenwood FL, Comyn TP, Cespedes O, Chastanet G, Halcrow MA. Unexpected Spin-Crossover and a Low-Pressure Phase Change in an Iron(II)/Dipyrazolylpyridine Complex Exhibiting a High-Spin Jahn–Teller Distortion. Inorg Chem 2015; 54:6319-30. [DOI: 10.1021/acs.inorgchem.5b00614] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Tim P. Comyn
- Institute
for Materials Research, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds LS2 9JT, United Kingdom
| | | | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
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31
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Syntheses, hydrogen-bonded assembly structures, and spin crossover properties of [FeIII(Him)2(n-MeOhapen)]PF6 (Him=imidazole and n-MeOhapen=N,N′-bis(n-methoxy-2-oxyacetophenylidene)ethylenediamine); n=4, 5, 6). Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.03.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Spin state behavior of iron(II)/dipyrazolylpyridine complexes. New insights from crystallographic and solution measurements. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.08.006] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Brooker S. Spin crossover with thermal hysteresis: practicalities and lessons learnt. Chem Soc Rev 2015; 44:2880-92. [DOI: 10.1039/c4cs00376d] [Citation(s) in RCA: 386] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Memory applications of spin crossover require bistability: magnetic data must be appropriately collected and reported, and consideration given to lifetimes.
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Affiliation(s)
- Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin
- New Zealand
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34
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Li JY, Chen YC, Zhang ZM, Liu W, Ni ZP, Tong ML. Tuning the Spin-Crossover Behaviour of a Hydrogen-Accepting Porous Coordination Polymer by Hydrogen-Donating Guests. Chemistry 2014; 21:1645-51. [DOI: 10.1002/chem.201405060] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Indexed: 11/08/2022]
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35
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Barrios LA, Peyrecave-Lleixà E, Craig GA, Roubeau O, Teat SJ, Aromí G. Unusual Crystal Packing in a Family of [Fe{2,6-bis(pyrazol-3-yl)pyridine}2]2+Compounds and the Effect on the Occurrence of Spin Crossover and Its Cooperative Character. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201403009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Schweinfurth D, Demeshko S, Hohloch S, Steinmetz M, Brandenburg JG, Dechert S, Meyer F, Grimme S, Sarkar B. Spin Crossover in Fe(II) and Co(II) Complexes with the Same Click-Derived Tripodal Ligand. Inorg Chem 2014; 53:8203-12. [DOI: 10.1021/ic500264k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- David Schweinfurth
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Stephan Hohloch
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Marc Steinmetz
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Jan Gerit Brandenburg
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Sebastian Dechert
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
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37
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Craig GA, Roubeau O, Aromí G. Spin state switching in 2,6-bis(pyrazol-3-yl)pyridine (3-bpp) based Fe(II) complexes. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Costa JS, Rodríguez-Jiménez S, Craig GA, Barth B, Beavers CM, Teat SJ, Aromí G. Three-way crystal-to-crystal reversible transformation and controlled spin switching by a nonporous molecular material. J Am Chem Soc 2014; 136:3869-74. [PMID: 24555786 DOI: 10.1021/ja411595y] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Porous materials capable of hosting external molecules are paramount in basic and applied research. Nonporous materials able to incorporate molecules via internal lattice reorganization are however extremely rare since their structural integrity usually does not resist the guest exchange processes. The novel heteroleptic low-spin Fe(II) complex [Fe(bpp)(H2L)](ClO4)2·1.5C3H6O (1; bpp = 2,6-bis(pyrazol-3-yl)pyridine, H2L = 2,6-bis(5-(2-methoxyphenyl)pyrazol-3-yl)pyridine) crystallizes as a compact discrete, nonporous material hosting solvate molecules of acetone. The system is able to extrude one-third of these molecules to lead to [Fe(bpp)(H2L)](ClO4)2·C3H6O (2), switching to the high-spin state while experiencing a profound crystallographic change. Compound 2 can be reversed to the original material upon reabsorption of acetone. Single crystal X-ray diffraction experiments on the latter system (1') and on 2 show that these are reversible single-crystal-to-single-crystal (SCSC) transformations. Likewise, complex 2 can replace acetone by MeOH and H2O to form [Fe(bpp)(H2L)](ClO4)2·1.25MeOH·0.5H2O (3) through a SCSC process that also implies a switch to the spin state. The 3→1 transformation through acetone reabsorption is also demonstrated. Besides the spin switching at room temperature, this series of SCSC transformations causes macroscopic changes in color that can be followed by the naked eye. The reversible exchanges of chemicals are therefore easily sensed at the temperature at which these occur, contrary to what is the case for most of the few existing nonporous spin-based sensors, which feature a large temperature gap between the process monitored and the mechanism of detection.
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Affiliation(s)
- José Sánchez Costa
- Departament de Química Inorgànica, Universitat de Barcelona , Diagonal, 645, 08028 Barcelona, Spain
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39
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Kulmaczewski R, Olguín J, Kitchen JA, Feltham HLC, Jameson GNL, Tallon JL, Brooker S. Remarkable Scan Rate Dependence for a Highly Constrained Dinuclear Iron(II) Spin Crossover Complex with a Wide Thermal Hysteresis Loop. J Am Chem Soc 2014; 136:878-81. [DOI: 10.1021/ja411563x] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Rafal Kulmaczewski
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Juan Olguín
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Jonathan A. Kitchen
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Guy N. L. Jameson
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Jeffery L. Tallon
- MacDiarmid
Institute for Advanced Materials and Nanotechnology and Robinson Research
Institute, Victoria University of Wellington, P.O. Box 31310, Lower Hutt, New Zealand
| | - Sally Brooker
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
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40
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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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41
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Abhervé A, Clemente-León M, Coronado E, Gómez-García CJ, López-Jordà M. A spin-crossover complex based on a 2,6-bis(pyrazol-1-yl)pyridine (1-bpp) ligand functionalized with a carboxylate group. Dalton Trans 2014; 43:9406-9. [DOI: 10.1039/c4dt00327f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Fe(bppCOOH)2](ClO4)2 shows an abrupt spin transition (T1/2 = 380 K, TLIESST = 60 K) due to a hydrogen-bonded linear network of complexes.
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Affiliation(s)
- Alexandre Abhervé
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna, Spain
| | - Miguel Clemente-León
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna, Spain
| | | | - Maurici López-Jordà
- Instituto de Ciencia Molecular (ICMol)
- Universidad de Valencia
- 46980 Paterna, Spain
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42
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Bushuev MB, Daletsky VA, Pishchur DP, Gatilov YV, Korolkov IV, Nikolaenkova EB, Krivopalov VP. Unprecedented bistability domain and interplay between spin crossover and polymorphism in a mononuclear iron(ii) complex. Dalton Trans 2014; 43:3906-10. [DOI: 10.1039/c3dt53440e] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Coronado E, Giménez-Marqués M, Martí-Gastaldo C, Espallargas GM, Navarro-Moratalla E, Waerenborgh JC. Hybrid Magnetic Superconductors Formed by TaS2 Layers and Spin Crossover Complexes. Inorg Chem 2013; 52:8451-60. [DOI: 10.1021/ic400320g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Eugenio Coronado
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José
Beltrán Martínez no. 2, 46980 Paterna, Spain
| | - Mónica Giménez-Marqués
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José
Beltrán Martínez no. 2, 46980 Paterna, Spain
| | - Carlos Martí-Gastaldo
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José
Beltrán Martínez no. 2, 46980 Paterna, Spain
- Department of Chemistry, University of Liverpool, Crown Street, L697ZD Liverpool,
United Kingdom
| | - Guillermo Mínguez Espallargas
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José
Beltrán Martínez no. 2, 46980 Paterna, Spain
| | - Efrén Navarro-Moratalla
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José
Beltrán Martínez no. 2, 46980 Paterna, Spain
| | - João C. Waerenborgh
- Dept. Química, IST/ITN, Instituto
Superior Técnico, Universidade Técnica de Lisboa, CFMC-UL, 2686-953 Sacavém, Portugal
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44
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Koike M, Murakami K, Fujinami T, Nishi K, Matsumoto N, Sunatsuki Y. Syntheses, three types of hydrogen-bonded assembly structures, and magnetic properties of [FeIII(Him)2(hapen)]Y·solvent (Him=imidazole, hapen=N,N′-bis(2-hydroxyacetophenylidene)ethylenediamine, Y=BPh4−, CF3SO3−, PF6−, ClO4−, and BF4−). Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.01.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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45
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Furushou D, Hashibe T, Fujinami T, Nishi K, Hagiwara H, Matsumoto N, Sunatsuki Y, Kojima M, Iijima S. Reprint of “Facial and meridional geometrical isomers of tris(2-methylimidazol-4-yl-methylideneaminobenzyl)iron(II) with Δ- and Λ-configurations and their enantio-discriminative assembly via imidazole⋯chloride hydrogen bonding and spin cross-over properties”. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Clemente-León M, Coronado E, López-Jordà M. 2D Bimetallic Oxalate-Based Ferromagnets with Inserted [Fe(4-Br-sal2-trien)]+and [Fe(3-R-sal2-trien)]+(R = Br, Cl and CH3O) FeIIISpin-Crossover Complexes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201113] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Białońska A, Bronisz R. Role of Fe-N-C geometry flip-flop in bistability in Fe(tetrazol-2-yl)4(C2H5CN)2-type core based coordination network. Inorg Chem 2012; 51:12630-7. [PMID: 23150893 DOI: 10.1021/ic300880w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Fe(ebtz)(2)(C(2)H(5)CN)(2)](ClO(4))(2) was prepared in the reaction of 1,2-di(tetrazol-2-yl)ethane (ebtz) with Fe(ClO(4))(2)·6H(2)O in propionitrile. The compound crystallizes as a one-dimensional (1D) network, where bridging of neighboring iron(II) ions by two ebtz ligand molecules results in formation of a [Fe(ebtz)(2)](∞) polymeric skeleton. The 1D chains are assembled into supramolecular layers with axially coordinated nitrile molecules directed outward. The complex in the high spin (HS) form reveals a very rare feature, namely, a bent geometry of the Fe-N-C(propionitrile) fragment (149.1(3)° at 250 K). The HS to low spin (LS) HS→LS transition triggers reorientation of the propionitrile molecule resulting in accommodation of a typical linear geometry of the Fe-N-C(nitrile) fragment. The switching of the propionitrile molecule orientation in relation to the coordination octahedron is associated with increase of the distance between the supramolecular layers. When the crystal is in the LS phase, raising the temperature does not cause reduction of the distance between supramolecular layers, which contributes to further stabilization of the more linear geometry of Fe-N-C(C(2)H(5)) and the LS form of the complex. Thus, a combination of Fe-N-C(C(2)H(5)) geometry lability and lattice effects contributes to the appearance of hysteretic behavior (T(1/2)(↓) ≈ 112 K, T(1/2)(↑) ≈ 141 K).
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Affiliation(s)
- Agata Białońska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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48
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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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49
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50
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Craig GA, Costa JS, Roubeau O, Teat SJ, Aromí G. Local Coordination Geometry and Spin State in Novel FeIIComplexes with 2,6-Bis(pyrazol-3-yl)pyridine-Type Ligands as Controlled by Packing Forces: Structural Correlations. Chemistry 2012; 18:11703-15. [DOI: 10.1002/chem.201200820] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Indexed: 11/10/2022]
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