1
|
Cuza E, Patriarche G, Serre C, Tissot A. New Architecture Based on Metal-Organic Frameworks and Spin Crossover Complexes to Detect Volatile Organic Compounds. Chemistry 2024; 30:e202400463. [PMID: 38699868 DOI: 10.1002/chem.202400463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/12/2024] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
We present here the encapsulation of a spin crossover complex C1 [FeII(L)] (L: 4-amino-, 2-(2-pyridinylmethylene)hydrazide) inside MOF-808(Zr), a chemically robust Metal-Organic Framework. The compound C1⊂MOF-808 retains its crystallinity as well as a partial porosity compared to pristine MOF and shows solvatochromism under Volatile Organic compounds (VOCs) sorption associated to a spin state change of the guest complex. More specifically, this compound shows an interesting reversible color change under formaldehyde and formic acid vapor sorption and can therefore be considered as a new kind of optical VOCs chemosensor, opening new doors for developing a broad range of VOCs optical sensors.
Collapse
Affiliation(s)
- Emmelyne Cuza
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, 75005, Paris, France
| | - Gilles Patriarche
- Centre de Nanosciences et de Nanotechnologies, Université Paris-Saclay, CNRS, 91120, Palaiseau, France
| | - Christian Serre
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, 75005, Paris, France
| | - Antoine Tissot
- Institut des Matériaux Poreux de Paris, Ecole Normale Supérieure, ESPCI Paris, CNRS, PSL University, 75005, Paris, France
| |
Collapse
|
2
|
Zakrzewski J, Liberka M, Wang J, Chorazy S, Ohkoshi SI. Optical Phenomena in Molecule-Based Magnetic Materials. Chem Rev 2024; 124:5930-6050. [PMID: 38687182 PMCID: PMC11082909 DOI: 10.1021/acs.chemrev.3c00840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Since the last century, we have witnessed the development of molecular magnetism which deals with magnetic materials based on molecular species, i.e., organic radicals and metal complexes. Among them, the broadest attention was devoted to molecule-based ferro-/ferrimagnets, spin transition materials, including those exploring electron transfer, molecular nanomagnets, such as single-molecule magnets (SMMs), molecular qubits, and stimuli-responsive magnetic materials. Their physical properties open the application horizons in sensors, data storage, spintronics, and quantum computation. It was found that various optical phenomena, such as thermochromism, photoswitching of magnetic and optical characteristics, luminescence, nonlinear optical and chiroptical effects, as well as optical responsivity to external stimuli, can be implemented into molecule-based magnetic materials. Moreover, the fruitful interactions of these optical effects with magnetism in molecule-based materials can provide new physical cross-effects and multifunctionality, enriching the applications in optical, electronic, and magnetic devices. This Review aims to show the scope of optical phenomena generated in molecule-based magnetic materials, including the recent advances in such areas as high-temperature photomagnetism, optical thermometry utilizing SMMs, optical addressability of molecular qubits, magneto-chiral dichroism, and opto-magneto-electric multifunctionality. These findings are discussed in the context of the types of optical phenomena accessible for various classes of molecule-based magnetic materials.
Collapse
Affiliation(s)
- Jakub
J. Zakrzewski
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Doctoral
School of Exact and Natural Sciences, Jagiellonian
University, Lojasiewicza
11, 30-348 Krakow, Poland
| | - Michal Liberka
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Doctoral
School of Exact and Natural Sciences, Jagiellonian
University, Lojasiewicza
11, 30-348 Krakow, Poland
| | - Junhao Wang
- Department
of Materials Science, Faculty of Pure and Applied Science, University of Tsukuba, 1-1-1 Tonnodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Szymon Chorazy
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Shin-ichi Ohkoshi
- Department
of Chemistry, School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
3
|
Handzlik G, Dziubek KF, Hanfland M, Pinkowicz D. Simultaneous manipulation of iron(II) spin crossover and LIESST behaviour using pressure, temperature and light. Dalton Trans 2024; 53:7677-7681. [PMID: 38665047 DOI: 10.1039/d4dt00509k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Spin crossover (SCO) and light-induced excited spin state trapping (LIESST) effects were studied using high pressure X-ray diffraction at cryogenic temperatures on a single crystal of the {[FeII(pyrazole)4]2[NbIV(CN)8]·4H2O}n (FeNb) coordination polymer. The studied compound does not show SCO or LIESST at ambient pressure, but these effects can be enforced by a mechanical stimulus. The obtained results demonstrate the manipulation of the spin state via the appropriate combination of multiple stimuli simultaneously.
Collapse
Affiliation(s)
- Gabriela Handzlik
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Kamil F Dziubek
- Institut für Mineralogie und Kristallographie, Universität Wien, Josef-Holaubek-Platz 2, A-1090 Wien, Austria
| | - Michael Hanfland
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS40220, 38043, Grenoble, Cedex 9, France
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| |
Collapse
|
4
|
Hruska E, Zhu Q, Biswas S, Fortunato MT, Broderick DR, Morales CM, Herbert JM, Turro C, Baker LR. Water-Mediated Charge Transfer and Electron Localization in a Co 3Fe 2 Cyanide-Bridged Trigonal Bipyramidal Complex. J Am Chem Soc 2024; 146:8031-8042. [PMID: 38478877 DOI: 10.1021/jacs.3c11451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
The effects of temperature and chemical environment on a pentanuclear cyanide-bridged, trigonal bipyramidal molecular paramagnet have been investigated. Using element- and oxidation state-specific near-ambient pressure X-ray photoemission spectroscopy (NAP-XPS) to probe charge transfer and second order, nonlinear vibrational spectroscopy, which is sensitive to symmetry changes based on charge (de)localization coupled with DFT, a detailed picture of environmental effects on charge-transfer-induced spin transitions is presented. The molecular cluster, Co3Fe2(tmphen)6(μ-CN)6(t-CN)6, abbrev. Co3Fe2, shows changes in electronic behavior depending on the chemical environment. NAP-XPS shows that temperature changes induce a metal-to-metal charge transfer (MMCT) in Co3Fe2 between a Co and Fe center, while cycling between ultrahigh vacuum and 2 mbar of water at constant temperature causes oxidation state changes not fully captured by the MMCT picture. Sum frequency generation vibrational spectroscopy (SFG-VS) probes the role of the cyanide ligand, which controls the electron (de)localization via the superexchange coupling. Spectral shifts and intensity changes indicate a change from a charge delocalized, Robin-Day class II/III high spin state to a charge-localized, class I low spin state consistent with DFT. In the presence of a H-bonding solvent, the complex adopts a localized electronic structure, while removal of the solvent delocalizes the charges and drives an MMCT. This change in Robin-Day classification of the complex as a function of chemical environment results in reversible switching of the dipole moment, analogous to molecular multiferroics. These results illustrate the important role of the chemical environment and solvation on underlying charge and spin transitions in this and related complexes.
Collapse
Affiliation(s)
- Emily Hruska
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Quansong Zhu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Somnath Biswas
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Matthew T Fortunato
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Dustin R Broderick
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Christine M Morales
- Department of Chemistry, University of Mount Union, Alliance, Ohio 44601, United States
| | - John M Herbert
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - L Robert Baker
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| |
Collapse
|
5
|
Sundaresan S, Becker JG, Eppelsheimer J, Sedykh AE, Carrella LM, Müller-Buschbaum K, Rentschler E. Synergetic spin singlet-quintet switching and luminescence in mononuclear Fe(II) 1,3,4-oxadiazole tetradentate chelates with NCBH 3 co-ligand. Dalton Trans 2023; 52:13181-13189. [PMID: 37664901 DOI: 10.1039/d3dt02420b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
We report the multi-step synthesis of the tetradentate 2-(naphthalen-2-yl)-5-[N,N-bis(2-pyridylmethyl)aminomethyl]-1,3,4-oxadiazole ligand (LTetra-ODA) along with its corresponding [FeII(LTetra-ODA)(NCBH3)2]·1.5CH3OH (C1) complex, which is the first mononuclear 1,3,4-oxadiazole based Fe(II) spin crossover (SCO) complex, and its zinc analogue [ZnII(LTetra-ODA)(NCBH3)2]·0.5H2O (C2). The spin transition is followed by variable temperature (VT-) X-ray crystallography of [Fe(LTetra-ODA)(NCBH3)2]·1.5CH3OH (C1) at 120 and 220 K. The magnetic susceptibility measurements on the bulk sample recorded from 2 to 300 K show that the complex exhibits a complete abrupt reversible spin transition with a T1/2 of 207 K. The loss of the lattice solvent methanol shifts the T1/2 slightly to around 210 K. The spin transition in solution for [Fe(LTetra-ODA)(NCBH3)2]·1.5CH3OH (C1) was followed using the VT-1H-NMR Evans method in CD3CN, with a T1/2 of 357 K. Solid state VT luminescence studies provide some preliminary evidence of interplay of luminescence and spin transition in the [Fe(LTetra-ODA)(NCBH3)2]·1.5CH3OH (C1) complex.
Collapse
Affiliation(s)
- Sriram Sundaresan
- Department Chemie, Johannes-Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Jens-Georg Becker
- Department Chemie, Johannes-Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Julian Eppelsheimer
- Department Chemie, Johannes-Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Alexander E Sedykh
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Luca M Carrella
- Department Chemie, Johannes-Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Klaus Müller-Buschbaum
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Eva Rentschler
- Department Chemie, Johannes-Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| |
Collapse
|
6
|
Magott M, Płonka K, Sieklucka B, Dziedzic-Kocurek K, Kosaka W, Miyasaka H, Pinkowicz D. Guest-induced pore breathing controls the spin state in a cyanido-bridged framework. Chem Sci 2023; 14:9651-9663. [PMID: 37736640 PMCID: PMC10510767 DOI: 10.1039/d3sc03255h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/14/2023] [Indexed: 09/23/2023] Open
Abstract
Iron(ii) spin cross-over (SCO) compounds combine a thermally driven transition from the diamagnetic low-spin (LS) state to the paramagnetic high-spin (HS) state with a distinct change in the crystal lattice volume. Inversely, if the crystal lattice volume was modulated post-synthetically, the spin state of the compound could be tunable, resulting in the inverse effect for SCO. Herein, we demonstrate such a spin-state tuning in a breathing cyanido-bridged porous coordination polymer (PCP), where the volume change resulting from guest-induced gate-opening and -closing directly affects its spin state. We report the synthesis of a three-dimensional coordination framework {[FeII(4-CNpy)4]2[WIV(CN)8]·4H2O}n (1·4H2O; 4-CNpy = 4-cyanopyridine), which demonstrates a SCO phenomenon characterized by strong elastic frustration. This leads to a 48 K wide hysteresis loop above 140 K, but below this temperature results in a very gradual and incomplete SCO transition. 1·4H2O was activated under mild conditions, producing the nonporous {[FeII(4-CNpy)4]2[WIV(CN)8]}n (1) via a single-crystal-to-single-crystal process involving a 7.3% volume decrease, which shows complete and nonhysteretic SCO at T1/2 = 93 K. The low-temperature photoswitching behavior in 1 and 1·4H2O manifested the characteristic elasticity of the frameworks; 1 can be quantitatively converted into a metastable HS state after 638 nm light irradiation, while the photoactivation of 1·4H2O is only partial. Furthermore, nonporous 1 adsorbed CO2 molecules in a gated process, leading to {[FeII(4-CNpy)4]2[WIV(CN)8]·4CO2}n (1·4CO2), which resulted in a 15% volume increase and stabilization of the HS state in the whole temperature range down to 2 K. The demonstrated post-synthetic guest-exchange employing common gases is an efficient approach for tuning the spin state in breathing SCO-PCPs.
Collapse
Affiliation(s)
- Michał Magott
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
- Institute for Materials Research, Tohoku University 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
| | - Klaudia Płonka
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Katarzyna Dziedzic-Kocurek
- Marian Smoluchowski Institute of Physics, Jagiellonian University Stanisława Łojasiewicza 11 Kraków 30-348 Poland
| | - Wataru Kosaka
- Institute for Materials Research, Tohoku University 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
| | - Hitoshi Miyasaka
- Institute for Materials Research, Tohoku University 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| |
Collapse
|
7
|
Li G, Stefanczyk O, Kumar K, Mineo Y, Nakabayashi K, Ohkoshi SI. Low-Frequency Sub-Terahertz Absorption in Hg II -XCN-Fe II (X=S, Se) Coordination Polymers. Angew Chem Int Ed Engl 2023; 62:e202214673. [PMID: 36522797 DOI: 10.1002/anie.202214673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Self-assembly FeII complexes of phenazine (Phen), quinoxaline (Qxn), and 4,4'-trimethylenedipyridine (Tmp) with tetrahedral building blocks of [HgII (XCN)4 ]2- (X=S or Se) formed six new high-dimensional frameworks with the general formula of [Fe(L)m ][Hg(XCN)4 ]⋅solvents (L=Phen, m/X=2/S, 1; L=Qxn, m/X=2/S, 2; L=Qxn, m/X=1/S, 3; L=Qxn, m/X=1/Se, 3-Se; L=Tmp, m/X=1/S, 4; and L=Tmp, m/X=1/Se, 4-Se). 1, 3, and 3-Se show an intense sub-terahertz (sub-THz) absorbance of around 0.60 THz due to vibrations of the solvent molecules coordinated to the FeII ions and crystallization organic molecules. In addition, crystals of 1, 4, and 4-Se display low-frequency Raman scattering with exceptionally low values of 0.44, 0.51, and 0.53 THz, respectively. These results indicate that heavy metal FeII -HgII systems are promising platforms to construct sub-THz absorbers.
Collapse
Affiliation(s)
- Guanping Li
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Olaf Stefanczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kunal Kumar
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yuuki Mineo
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Koji Nakabayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| |
Collapse
|
8
|
Review of Fe-based spin crossover metal complexes in multiscale device architectures. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
9
|
Li R, Kalita VM, Fylymonov H, Xu W, Li Q, Real JA, Liu B, Levchenko G. Pressure-Induced Mixed States Caused by Spin-Elastic Interactions during First-Order Spin Phase Transition in Spin Crossover Compounds. Inorg Chem 2022; 61:14752-14760. [PMID: 36074955 DOI: 10.1021/acs.inorgchem.2c02124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recently, the possibility of exploiting the phenomenon of spin transition (ST) has been intensively investigated; therefore, it is particularly important to study the behavior of ST under various stimuli. Here, the shape and content of the intermediate phase of ST in Hoffmann-like compounds [Fe(Fpz)2M(CN)4] (M = Pt, Pd) under external stimuli are studied. For this purpose, magnetic and Raman spectroscopy studies were carried out. In pressure-induced spin transition (PIST), a mixture of high-spin and low-spin states appears, while in temperature-induced spin transition (TIST), a homogeneous state occurs. The first-order ST induced by pressure has a hysteresis but is not abrupt. However, the temperature-induced spin transition at ambient pressure is hysteretic and abrupt. To investigate this difference, we discuss using a thermodynamic model that considers elastic interactions, showing that the slope of the hysteresis loop is related to the appearance of internal pressure, which is related to the difference in sample compressibility under high-spin and low-spin states.
Collapse
Affiliation(s)
- Ruixin Li
- State Key Laboratory of Superhard Materials, International Centre of Future Science, Jilin University, Changchun 130012, China
| | - Viktor M Kalita
- Institute of Magnetism of NAS of Ukraine and MES of Ukraine, 36-b Vernadsky Boulevard, Kyiv 03142, Ukraine.,National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Prospekt Peremohy 37, Kyiv 03056, Ukraine.,Institute of Physics, NAS of Ukraine, Prospekt Nauky 46, Kyiv 03028, Ukraine
| | - Hennadii Fylymonov
- Donetsk Institute of Physics and Engineering Named after A.A. Galkin, Kyiv 03028, Ukraine
| | - Wei Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
| | - Quanjun Li
- State Key Laboratory of Superhard Materials, International Centre of Future Science, Jilin University, Changchun 130012, China
| | - José Antonio Real
- Institut de Ciència Molecular, Departament de Química Inorgànica, Universitat de València, València E-46980, Spain
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, International Centre of Future Science, Jilin University, Changchun 130012, China
| | - Georgiy Levchenko
- State Key Laboratory of Superhard Materials, International Centre of Future Science, Jilin University, Changchun 130012, China.,Donetsk Institute of Physics and Engineering Named after A.A. Galkin, Kyiv 03028, Ukraine
| |
Collapse
|
10
|
Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, da Silva I, Muñoz MC, Moroz YS, Real JA. 105 K Wide Room Temperature Spin Transition Memory Due to a Supramolecular Latch Mechanism. J Am Chem Soc 2022; 144:14297-14309. [PMID: 35900921 PMCID: PMC9380689 DOI: 10.1021/jacs.2c05417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
![]()
Little is known about the mechanisms behind the bistability
(memory)
of molecular spin transition compounds over broad temperature ranges
(>100 K). To address this point, we report on a new discrete FeII neutral complex [FeIIL2]0 (1) based on a novel asymmetric tridentate ligand 2-(5-(3-methoxy-4H-1,2,4-triazol-3-yl)-6-(1H-pyrazol-1-yl))pyridine
(L). Due to the asymmetric cone-shaped form, in the lattice, the formed
complex molecules stack into a one-dimensional (1D) supramolecular
chain. In the case of the rectangular supramolecular arrangement of
chains in methanolates 1-A and 1-B (both
orthorhombic, Pbcn) differing, respectively, by bent
and extended spatial conformations of the 3-methoxy groups (3MeO),
a moderate cooperativity is observed. In contrast, the hexagonal-like
arrangement of supramolecular chains in polymorph 1-C (monoclinic, P21/c) results in steric coupling of the transforming complex
species with the peripheral flipping 3MeO group. The group acts as
a supramolecular latch, locking the huge geometric distortion of complex 1 and in turn the trigonal distortion of the central FeII ion in the high-spin state, thereby keeping it from the
transition to the low-spin state over a large thermal range. Analysis
of the crystal packing of 1-C reveals significantly changing
patterns of close intermolecular interactions on going between the
phases substantiated by the energy framework analysis. The detected
supramolecular mechanism leads to a record-setting robust 105 K wide
hysteresis spanning the room temperature region and an atypically
large TLIESST relaxation value of 104
K of the photoexcited high-spin state. This work highlights a viable
pathway toward a new generation of cleverly designed molecular memory
materials.
Collapse
Affiliation(s)
- Maksym Seredyuk
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain.,Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - Kateryna Znovjyak
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601 Kyiv, Ukraine
| | | | - Ivan da Silva
- ISIS Neutron Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, U.K
| | - M Carmen Muñoz
- Departamento de Fisíca Aplicada, Universitat Politècnica de València, Camino de Vera s/n, E-46022 Valencia, Spain
| | - Yurii S Moroz
- Chemspace Ltd., Chervonotkatska Street 78, 02094 Kyiv, Ukraine.,ChemBio Center, Taras Shevchenko National University of Kyiv, 60, Volodymyrska Street, 01601 Kyiv, Ukraine
| | - José Antonio Real
- Instituto de Ciencia Molecular, Departamento de Química Inorgánica, Universidad de Valencia, 46980 Paterna, Valencia, Spain
| |
Collapse
|
11
|
Yergeshbayeva S, Hrudka JJ, Jo M, Gakiya-Teruya M, Meisel MW, Shatruk M. Abrupt Spin Transition in a Heteroleptic Fe(II) Complex with Pendant Naphthalene Functionality. Inorg Chem 2022; 61:11349-11358. [PMID: 35816625 DOI: 10.1021/acs.inorgchem.2c01490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A heteroleptic spin-crossover (SCO) complex, [Fe(tpma)(xnap-bim)](ClO4)2 (1; tpma = tris(2-pyridylmethyl)amine, xnap-bim = 8,15-dihydrodiimidazo[1,2-a:2',1'-c]naphtho[2,3-f][1,4]diazocine), has been obtained by reacting a Fe(II) precursor salt with tetradentate tpma and bidentate xnap-bim ligands. Depending on crystallization conditions, two different solvates have been obtained, 1·2.25py·0.5H2O and 1·py. The former readily loses the interstitial solvent to produce either a powder sample of 1 upon filtration or crystals of 1 if the solvent loss is slowed by placing the crystals of 1·2.25py·0.5H2O in diethyl ether. In contrast, 1·py exhibits higher stability toward solvent loss. The crystal packing of both solvates and of the solvent-free structure features double columns of [Fe(tpma)(xnap-bim)]2+ cations formed by efficient π-π interactions between the pyridyl groups of tpma ligands, as well as by stacks supported by π-π interactions between interdigitated naphthalene fragments of xnap-bim ligands. While both solvates show a gradual SCO between the high-spin (HS) and low-spin (LS) states of the Fe(II) ion, solvent-free complex 1 exhibits an abrupt spin transition centered at 127 K, with a narrow 2 K thermal hysteresis. Complex 1 also shows a light-induced excited spin state trapping effect, manifested as LS → HS conversion upon irradiation with white light at 5 K. The metastable HS state relaxes to the ground LS state when heated above 65 K.
Collapse
Affiliation(s)
- Sandugash Yergeshbayeva
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Jeremy J Hrudka
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Minyoung Jo
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Miguel Gakiya-Teruya
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Mark W Meisel
- Department of Physics, University of Florida, Gainesville, Florida 32611-8440, United States.,National High Magnetic Field Laboratory, Gainesville, Florida 32611-8440, United States
| | - Michael Shatruk
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| |
Collapse
|
12
|
Glatz J, Jiménez JR, Godeffroy L, von Bardeleben HJ, Fillaud L, Maisonhaute E, Li Y, Chamoreau LM, Lescouëzec R. Enlightening the Alkali Ion Role in the Photomagnetic Effect of FeCo Prussian Blue Analogues. J Am Chem Soc 2022; 144:10888-10901. [PMID: 35675503 DOI: 10.1021/jacs.2c03421] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
FeCo Prussian blue analogues of general formula AxCoy[Fe(CN)6]z are responsive, non-stoichiometric materials whose magnetic and optical properties can be reversibly switched by light irradiation. However, elucidating the critical influence of the inserted alkali ion, A+, on the material's properties remains complicated due to their complex local structure. Here, by investigating soluble A ⊂ [Fe4-Co4] cyanido cubes (A = K, Rb, and Cs), both accurate structural and electronic information could be obtained. First, X-ray diffraction analyses reveal distinct interactions between the inserted A+ ions and the {Fe4-Co4} box, which impacts the structural distortion in the cubic framework. These distortions vanish, and a displacement of the small K+ ion from a corner toward the center is observed, as a cobalt corner CoIIHS is oxidized to CoIIILS. Second, cyclic voltammetry experiments performed at variable temperatures show distinct splitting of the CoIIHS ⇔ CoIIILS peak potentials for the different A+ cations, which can be qualitatively linked to different thermodynamic (standard potentials) and kinetic (energy barriers) parameters associated with the structural reorganization accompanying this redox-coupled spin state change. Moreover, for the first time, photomagnetism was investigated in frozen solution to avoid effects of intermolecular interactions. The results show that the metastable state is stabilized following the trend K > Rb > Cs. The outcome of these studies suggests that the interaction of the inserted alkali ions with the cyanide cage and the structural changes accompanying the electron transfer impact the stability of the photoinduced state and the relaxation temperature: the smaller the cation, the higher the structural reorganization and the associated energy barrier, and the more stable the metastable state.
Collapse
Affiliation(s)
- Jana Glatz
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Juan-Ramón Jiménez
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Louis Godeffroy
- Laboratoire Interface et Systèmes Electrochimiques, CNRS UMR 8235, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Hans Jurgen von Bardeleben
- Institut des Nanosciences de Paris, CNRS UMR 7588, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Laure Fillaud
- Laboratoire Interface et Systèmes Electrochimiques, CNRS UMR 8235, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Emmanuel Maisonhaute
- Laboratoire Interface et Systèmes Electrochimiques, CNRS UMR 8235, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Yanling Li
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Lise-Marie Chamoreau
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| | - Rodrigue Lescouëzec
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 4 place Jussieu, F-75252 Paris cedex 5, France
| |
Collapse
|
13
|
Nadeem M, Cruddas J, Ruzzi G, Powell BJ. Toward High-Temperature Light-Induced Spin-State Trapping in Spin-Crossover Materials: The Interplay of Collective and Molecular Effects. J Am Chem Soc 2022; 144:9138-9148. [PMID: 35546521 DOI: 10.1021/jacs.2c03202] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Spin-crossover (SCO) materials display many fascinating behaviors including collective phase transitions and spin-state switching controlled by external stimuli, e.g., light and electrical currents. As single-molecule switches, they have been fêted for numerous practical applications, but these remain largely unrealized-partly because of the difficulty of switching these materials at high temperatures. We introduce a semiempirical microscopic model of SCO materials combining crystal field theory with elastic intermolecular interactions. For realistic parameters, this model reproduces the key experimental results including thermally induced phase transitions, light-induced spin-state trapping (LIESST), and reverse-LIESST. Notably, we reproduce and explain the experimentally observed relationship between the critical temperature of the thermal transition, T1/2, and the highest temperature for which the trapped state is stable, TLIESST, and explain why increasing the stiffness of the coordination sphere increases TLIESST. We propose strategies to design SCO materials with higher TLIESST: optimizing the spin-orbit coupling via heavier atoms (particularly in the inner coordination sphere) and minimizing the enthalpy difference between the high-spin (HS) and low-spin (LS) states. However, the most dramatic increases arise from increasing the cooperativity of the spin-state transition by increasing the rigidity of the crystal. Increased crystal rigidity can also stabilize the HS state to low temperatures on thermal cycling yet leave the LS state stable at high temperatures following, for example, reverse-LIESST. We show that such highly cooperative systems offer a realistic route to robust room-temperature switching, demonstrate this in silico, and discuss material design rationale to realize this.
Collapse
Affiliation(s)
- M Nadeem
- School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jace Cruddas
- School of Physical Sciences, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Gian Ruzzi
- School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Benjamin J Powell
- School of Mathematics and Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
| |
Collapse
|
14
|
Ahmed M, Zenere KA, Sciortino NF, Arachchige KSA, Turner GF, Cruddas J, Hua C, Price JR, Clegg JK, Valverde-Muñoz FJ, Real JA, Chastanet G, Moggach SA, Kepert CJ, Powell BJ, Neville SM. Regulation of Multistep Spin Crossover Across Multiple Stimuli in a 2-D Framework Material. Inorg Chem 2022; 61:6641-6649. [PMID: 35442030 DOI: 10.1021/acs.inorgchem.2c00530] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We investigate the effects of a broad array of external stimuli on the structural, spin-crossover (SCO) properties and nature of the elastic interaction within the two-dimensional Hofmann framework material [Fe(cintrz)2Pd(CN)4]·guest (cintrz = N-cinnamalidene 4-amino-1,2,4-triazole; A·guest; guest = 3H2O, 2H2O, and Ø). This framework exhibits a delicate balance between ferro- and antiferro-elastic interaction characters; we show that manipulation of the pore contents across guests = 3H2O, 2H2O, and Ø can be exploited to regulate this balance. In A·3H2O, the dominant antiferroelastic interaction character between neighboring FeII sites sees the low-temperature persistence of the mixed spin-state species {HS-LS} for {Fe1-Fe2} (HS = high spin, LS = low spin). Elastic interaction strain is responsible for stabilizing the {HS-LS} state and can be overcome by three mechanisms: (1) partial (2H2O) or complete (Ø) guest removal, (2) irradiation via the reverse light-induced excited spin-state trapping (LIESST) effect (λ = 830 nm), and (3) the application of external hydrostatic pressure. Combining experimental data with elastic models presents a clear interpretation that while guest molecules cause a negative chemical pressure, they also have consequences for the elastic interactions between metals beyond the simple chemical pressure picture typically proposed.
Collapse
Affiliation(s)
- Manan Ahmed
- The School of Chemistry, UNSW Sydney, Sydney 2052, New South Wales, Australia
| | - Katrina A Zenere
- The School of Chemistry, The University of Sydney, Sydney 2006, New South Wales, Australia
| | - Natasha F Sciortino
- The School of Chemistry, The University of Sydney, Sydney 2006, New South Wales, Australia
| | - Kasun S A Arachchige
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia 4072, Queensland, Australia
| | - Gemma F Turner
- School of Molecular Sciences, The University of Western Australia, Perth 6009, Western Australia, Australia
| | - Jace Cruddas
- School of Mathematics and Physics, The University of Queensland, St Lucia 4072, Queensland, Australia
| | - Carol Hua
- School of Chemistry, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - Jason R Price
- The Australian Synchrotron, 800 Blackburn Road, Clayton 3168, Victoria, Australia
| | - Jack K Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia 4072, Queensland, Australia
| | | | - Jose A Real
- Insitut de Ciencia Molecular, Department de Quimica Inorganica, Universitat de Valéncia, Patterna 46980, Valéncia, Spain
| | - Guillaume Chastanet
- University of Bordeaux, CNRS, Bordeaux-INP, ICMCB, UMR 5026, Pessac F-33600, France
| | - Stephen A Moggach
- School of Molecular Sciences, The University of Western Australia, Perth 6009, Western Australia, Australia
| | - Cameron J Kepert
- The School of Chemistry, The University of Sydney, Sydney 2006, New South Wales, Australia
| | - Benjamin J Powell
- School of Mathematics and Physics, The University of Queensland, St Lucia 4072, Queensland, Australia
| | - Suzanne M Neville
- The School of Chemistry, UNSW Sydney, Sydney 2052, New South Wales, Australia
| |
Collapse
|
15
|
Bondì L, Garden AL, Totti F, Jerabek P, Brooker S. Quantitative Assessment of Ligand Substituent Effects on σ‐ and π‐Contributions to Fe−N Bonds in Spin Crossover Fe
II
Complexes. Chemistry 2022; 28:e202104314. [PMID: 35224791 PMCID: PMC9310619 DOI: 10.1002/chem.202104314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 11/24/2022]
Abstract
The effect of para‐substituent X on the electronic structure of sixteen tridentate 4‐X‐(2,6‐di(pyrazol‐1‐yl))‐pyridine (bppX) ligands and the corresponding solution spin crossover [FeII(bppX)2]2+ complexes is analysed further, to supply quantitative insights into the effect of X on the σ‐donor and π‐acceptor character of the Fe‐NA(pyridine) bonds. EDA‐NOCV on the sixteen LS complexes revealed that neither ΔEorb,σ+π (R2=0.48) nor ΔEorb,π (R2=0.31) correlated with the experimental solution T1/2 values (which are expected to reflect the ligand field imposed on the iron centre), but that ΔEorb,σ correlates well (R2=0.82) and implies that as X changes from EDG→EWG (Electron Donating to Withdrawing Group), the ligand becomes a better σ‐donor. This counter‐intuitive result was further probed by Mulliken analysis of the NA atomic orbitals: NA(px) involved in the Fe−N σ‐bond vs. the perpendicular NA(pz) employed in the ligand aromatic π‐system. As X changes EDG→EWG, the electron population on NA(pz) decreases, making it a better π‐acceptor, whilst that in NA(px) increases, making it a better σ‐bond donor; both increase ligand field, and T1/2 as observed. In 2016, Halcrow, Deeth and co‐workers proposed an intuitively reasonable explanation of the effect of the para‐X substituents on the T1/2 values in this family of complexes, consistent with the calculated MO energy levels, that M→L π‐backdonation dominates in these M−L bonds. Here the quantitative EDA‐NOCV analysis of the M−L bond contributions provides a more complete, coherent and detailed picture of the relative impact of M−L σ‐versus π‐bonding in determining the observed T1/2, refining the earlier interpretation and revealing the importance of the σ‐bonding. Furthermore, our results are in perfect agreement with the ΔE(HS‐LS) vs. σp+(X) correlation reported in their work.
Collapse
Affiliation(s)
- Luca Bondì
- Department of Chemistry MacDiarmid Institute of Advanced Materials and Nanotechnology University of Otago PO Box 56 Dunedin 9054 New Zealand
- Department of Chemistry ‘Ugo Schiff' and INSTM Research Unit University of Florence 50019 Sesto Fiorentino Italy
| | - Anna L. Garden
- Department of Chemistry MacDiarmid Institute of Advanced Materials and Nanotechnology University of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Federico Totti
- Department of Chemistry ‘Ugo Schiff' and INSTM Research Unit University of Florence 50019 Sesto Fiorentino Italy
| | - Paul Jerabek
- Institute of Hydrogen Technology Helmholtz-Zentrum Hereon Max-Planck-Straße 1 21502 Geesthacht Germany
| | - Sally Brooker
- Department of Chemistry MacDiarmid Institute of Advanced Materials and Nanotechnology University of Otago PO Box 56 Dunedin 9054 New Zealand
| |
Collapse
|
16
|
Velazquez-Garcia JDJ, Basuroy K, Storozhuk D, Wong J, Demeshko S, Meyer F, Henning R, Techert S. Metal-to-metal communication during the spin state transition of a [2 × 2] Fe(II) metallogrid at equilibrium and out-of-equilibrium conditions. Dalton Trans 2022; 51:6036-6045. [PMID: 35352719 DOI: 10.1039/d1dt04255f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Spin crossover (SCO) complexes are prototypes of materials with bi- or multi-stability in the solid state. The structural evolution during their spin transition is a key feature to establish the foundations of how to utilize this type of material. So far, ultrafast time-resolved structural investigations of SCO solids have been focused on monometallic complexes, though an increasing number of oligometallic SCO complexes showing cooperativity effects are being reported. Here, we used single crystal X-ray crystallography and time-resolved pink Laue photocrystallography to study the molecular reorganisation during the thermal and photoinduced SCO of a [2 × 2] tetranuclear metallogrid of the form [FeII4LMe4](BF4)4·2MeCN ([LMe]- = 4-methyl-3,5-bis{6-(2,2'-bipyridyl)}pyrazolate). A multitemperature crystallographic investigation on single crystals reveals an effective communication between the metal centres during thermal SCO, observed by the simultaneous transformation of the coordination polyhedra of both crystallographic-symmetry independent metal atoms accompanying the SCO in only one of them. Time-resolved photocrystallography results reveal the different molecular responses between mononuclear and oligonuclear complexes, after light irradiation with a picosecond laser pulse. While mononuclear SCO complexes reorganise once during the first nanosecond after excitation, the tetranuclear metallogrid exhibits a multiple structural rearrangement in the same span of time. Such behaviour is attributed to the elastic communication between metal atoms, which allows the propagation of a short-range elastic distortion over the entire Fe4 grid complex. The present study sheds light on the importance of strong elastic coupling of metal atoms during the correlated spin transition of oligometallic complexes.
Collapse
Affiliation(s)
- Jose de Jesus Velazquez-Garcia
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany.
| | - Krishnayan Basuroy
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany.
| | - Darina Storozhuk
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany.
| | - Joanne Wong
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077 Göttingen, Germany
| | - Serhiy Demeshko
- 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
| | - Robert Henning
- Center for Advanced Radiation Sources, The University of Chicago, Argonne National Laboratory, 9700 South Cass Ave, Lemont, Illinois, 90439, USA
| | - Simone Techert
- Photon Science - Structural Dynamics in Chemical Systems, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, D-22607 Hamburg, Germany.
- Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
| |
Collapse
|
17
|
Qiu JZ, You Y, Yu Y, Chen ZF, Guo CJ, Zhong YL, Lin WQ, Shu XG. A Mononuclear Iron(II) Spin-Crossover Molecule Decorated by Photochromic Azobenzene Group. Molecules 2022; 27:molecules27051571. [PMID: 35268672 PMCID: PMC8912052 DOI: 10.3390/molecules27051571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 02/05/2023] Open
Abstract
Aiming at constructing photoresponsive spin crossover (SCO) behavior, herein we designed a new ligand Abtz (Abtz = (E)-N-(4-((E)-phenyldiazenyl)phenyl)-1-(thiazol-4-yl)methanimine) which was decorated by a photochromic azobenzene group. Based on this photochromic ligand, a mononuclear Fe(II) SCO molecule [Fe(Abtz)3](BF4)2·(EAC)2 (1, EAC = ethyl acetate) was successfully synthesized and showed a complete one-step SCO behavior. Under continuous UV light and blue-light exposure, the cis–trans photoisomerization of both ligand Abtz and compound 1 in the liquid phase was confirmed through UV–Vis spectra. Moreover, the 1H-NMR spectra of Abtz reveal a trans–cis conversion ratio of 37%. Although the UV–Vis spectra reveal the photochromic behavior for 1 in the solution phase, the SCO behavior in the liquid state is absent according to the variable-temperature Evans method, suggesting the possible decomposition. Moreover, in the solid state, the cis–trans photoisomerization of both Abtz and 1 was not observed, due to the steric hindrance.
Collapse
Affiliation(s)
- Jiang-Zhen Qiu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Yong You
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Ye Yu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Zhuo-Fan Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Cheng-Jie Guo
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Yi-Ling Zhong
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
| | - Wei-Quan Lin
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Xu-Gang Shu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| |
Collapse
|
18
|
Chakraborty P, Sy M, Fourati H, Delgado T, Dutta M, Das C, Besnard C, Hauser A, Enachescu C, Boukheddaden K. Optical microscopy imaging of the thermally-induced spin transition and isothermal multi-stepped relaxation in a low-spin stabilized spin-crossover material. Phys Chem Chem Phys 2022; 24:982-994. [PMID: 34918013 DOI: 10.1039/d1cp04321h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The thermal spin transition and the photo-induced high-spin → low-spin relaxation of the prototypical [Fe(ptz)6](BF4)2 spin-crossover compound (ptz = 1-propyltetrazole) diluted in the isostructural ruthenium host lattice [Ru(ptz)6](BF4)2, which stabilizes the Fe(II) low-spin state, have been investigated. We demonstrate the presence of a crystallographic phase transition around 145 K (i.e. from the high-temperature ordered high-spin phase to a low-temperature disordered low-spin phase) upon slow cooling from room temperature. This crystallographic phase transition is decoupled from the thermal spin transition. A supercooled ordered low-spin phase is observed as in the pure Fe(II) analogue upon fast cooling. A similar order-disorder phase transition is also observed for pure [Ru(ptz)6](BF4)2 but at relatively higher temperature (i.e. at around 150 K) without involving any spin transition. For Ru-diluted [Fe(ptz)6]2+, the crystallographic phase transition as well as strong cooperative effects involving various degrees of elastic frustration are at the origin of stepped sigmoidal high-spin → low-spin relaxation curves, which are modelled in the framework of a classical mean field model, considering both the tunnelling and thermally activated regimes. Optical microscopy studies performed on two different single crystals showed the existence of hysteretic thermal transitions with slight domain formation, hardly visible in the static crystal images. This behavior is attributed to the double effect upon Ru dilution, which decreases the cooperative character of the transition and simultaneously reduces the optical contrast between the LS and HS states. Moreover, the transition temperature revealed to be slightly crystal dependent, highlighting the crucial role of the spatial distribution of Ru from one crystal to another, in addition to the well-known effects of crystal shape and size.
Collapse
Affiliation(s)
- Pradip Chakraborty
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Mouhamadou Sy
- Université Assane Seck de Ziguinchor, Département de Physique, LCPM, BP 523 Diabir, Ziguinchor 27000, Sénégal
| | - Houcem Fourati
- Université Paris-Saclay, UVSQ, CNRS, GEMAC, 45 Avenue des Etats Unis 78035, Versailles, France.
| | - Teresa Delgado
- Département de Chimie Physique, Université de Genève, 30, Quai Ernest-Ansermet, CH-1211, Genève 4, Switzerland.,Chimie ParisTech-CNRS, IRCP (PSL), 11 rue P. et M. Curie, 75005 Paris, France
| | - Mousumi Dutta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Chinmoy Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Céline Besnard
- Laboratoire de Cristallographie, Université de Genève, 24, Quai Ernest-Ansermet, CH-1211, Genève 4, Switzerland
| | - Andreas Hauser
- Département de Chimie Physique, Université de Genève, 30, Quai Ernest-Ansermet, CH-1211, Genève 4, Switzerland
| | | | - Kamel Boukheddaden
- Université Paris-Saclay, UVSQ, CNRS, GEMAC, 45 Avenue des Etats Unis 78035, Versailles, France.
| |
Collapse
|
19
|
Seredyuk M, Znovjyak K, Valverde-Muñoz FJ, Muñoz MC, Fritsky IO, Amirkhanov VM, Real JA. Spin transition and symmetry-breaking in new mononuclear FeII tren-complexes with up to 38 K hysteresis around room temperature. Inorg Chem Front 2022. [DOI: 10.1039/d1qi00941a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New FeII complexes based on the well-known tripodand ligand type undergo abrupt hysteretic spin transition due to the symmetry-breaking in the room temperature region.
Collapse
Affiliation(s)
- Maksym Seredyuk
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Kateryna Znovjyak
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | | | - M. Carmen Muñoz
- Departamento de Fisica Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - Igor O. Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Volodymyr M. Amirkhanov
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, 01601, Kyiv, Ukraine
| | - Jose A. Real
- Departament de Quimica Inorgànica, Institut de Ciencia Molecular (ICMol), Universitat de València, Valencia, Spain
| |
Collapse
|
20
|
Gu D, Liang N, Li Q, Li G, Yu D, Liu Y. Selective Photocatalyst for styrene epoxidation with atmospheric O 2 using covalent organic frameworks. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02299g] [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
Fe@POG-OH was synthetized and used to photo-catalyze styrene epoxidation with high selectivity and high conversion at room temperature. O2˙− plays crucial roles in the effective and selective oxidation of styrene to styrene oxide.
Collapse
Affiliation(s)
- Defa Gu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Nianjie Liang
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Qiaosheng Li
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Guangwen Li
- Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China
| | - Dongdong Yu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
| | - Yuzhou Liu
- School of Chemistry, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, 37 Xueyuan Rd, Beijing, 100191, China
- Beijing Shenyun Zhihe Technology Co., Ltd., 2 Yongcheng North Rd, Beijing, 100094, China
| |
Collapse
|
21
|
Xie KP, Ruan ZY, Chen XX, Yang J, Wu SG, Ni ZP, Tong ML. Light-induced hidden multistability in a spin crossover metal-organic framework. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00037g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pursuit of spin crossover (SCO) materials with photo-switchable multistability is driven by the fascinating perspectives toward light-response switches and opto-magnetic memory devices. Herein, we report a 3D Hofmann-type metal...
Collapse
|
22
|
Pai T, Stefanczyk O, Kumar K, Mathonière C, Sieklucka B, Ohkoshi SI. Experimental and theoretical insights into the photomagnetic effects in trinuclear and ionic Cu( ii)–Mo( iv) systems. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01469b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New ionic and trinuclear copper(ii)–octacyanidomolybdate(iv) systems were developed and tested experimentally and theoretically to improve understanding of the photomagnetic effects.
Collapse
Affiliation(s)
- TingYun Pai
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Olaf Stefanczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kunal Kumar
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Corine Mathonière
- Université de Bordeaux, CNRS, Centre de Recherche Paul Pascal, UMR 5031, F-33600 Pessac, France
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Shin-ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
23
|
Pittala N, Cuza E, Pinkowicz D, Magott M, Marchivie M, Boukheddaden K, Triki S. Antagonist elastic interactions tuning spin crossover and LIESST behaviours in Fe II trinuclear-based one-dimensional chains. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01629j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A new 1-D spin SCO coordination polymer based on FeII trinuclear units covalently linked by a flexible coligand has been reported as an unusual platform and model system for experimental study on the origin of the step-like feature in 1-D systems.
Collapse
Affiliation(s)
- Narsimhulu Pittala
- Univ Brest, CNRS, CEMCA, 6 Avenue Victor Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Emmelyne Cuza
- Univ Brest, CNRS, CEMCA, 6 Avenue Victor Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Michał Magott
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Mathieu Marchivie
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France
| | - Kamel Boukheddaden
- Université Paris-Saclay, Université de Versailles Saint Quentin, CNRS, GEMaC UMR 8635, 45 Av. des Etats-Unis, 78035 Versailles Cedex, France
| | - Smail Triki
- Univ Brest, CNRS, CEMCA, 6 Avenue Victor Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| |
Collapse
|
24
|
Hatcher LE, Coulson BA. Exploring the influence of polymorphism and chromophore co-ligands on linkage isomer photoswitching in [Pd(bpy4dca)(NO 2) 2]. CrystEngComm 2022. [DOI: 10.1039/d2ce00213b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The polymorphic Pd(II)-nitrite complex [Pd(bpy4dca)(NO2)2] (1) (bpy4dca = 2,2’-bipyridine-4,4’-dicarboxylic acid methyl ester) is shown to undergo photoinduced nitro → nitrito linkage isomer switching in two crystal forms, to varying excited...
Collapse
|
25
|
Dürrmann A, Hörner G, Wagner S, Breuning M, Weber B. Sterically Encumbered Coordination Sites. Iron(II) Complexes of Jäger‐type ligands with a Terphenyl Backbone. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Andreas Dürrmann
- Department of Chemistry Inorganic Chemistry University of Bayreuth Universitätsstraße 30, NWI 95440 Bayreuth Germany
| | - Gerald Hörner
- Department of Chemistry Inorganic Chemistry University of Bayreuth Universitätsstraße 30, NWI 95440 Bayreuth Germany
| | - Stefan Wagner
- Department of Chemistry Organic Chemistry University of Bayreuth Universitätsstraße 30, NWII 95440 Bayreuth Germany
| | - Matthias Breuning
- Department of Chemistry Organic Chemistry University of Bayreuth Universitätsstraße 30, NWII 95440 Bayreuth Germany
| | - Birgit Weber
- Department of Chemistry Inorganic Chemistry University of Bayreuth Universitätsstraße 30, NWI 95440 Bayreuth Germany
| |
Collapse
|
26
|
Guo Z, You M, Deng YF, Liu Q, Meng YS, Pikramenou Z, Zhang YZ. An azido-bridged [FeII4] grid-like molecule showing spin crossover behaviour. Dalton Trans 2021; 50:14303-14308. [PMID: 34554167 DOI: 10.1039/d1dt01908b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The supramolecular self-assembly synthetic strategy provides a valid tool to obtain polynuclear Fe(II) complexes having effective communication between the metal centres and distinct spin crossover behaviour. Despite the great success in constructing various magnetic molecules, progress has not been made in SCO complexes based on azido bridges. In this article, the coordination-driven supramolecular assembly based on 3,6-substituted pyridazine and azide is presented to afford two Fe(II) grid-like complexes: [(L)4FeII4(N3)4][BPh4]4·sol (1, L = 3,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)pyridazine and 2, L = 3,6-di(pyridin-2-yl)pyridazine). The substitution of pyridinyl groups in 2 instead of pyrazolyl ones in 1 led to the only example exhibiting spin-crossover behaviour (T1/2 = 230 K) among the azido-bridged complexes. In addition, a temperature-dependent photoluminescence study of 2 demonstrates a visible synergetic effect between the SCO event and the luminescence.
Collapse
Affiliation(s)
- Zhilin Guo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China. .,School of Chemistry, The University of Birmingham, Edgbaston B15 2TT, UK.
| | - Maolin You
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China. .,Department of Chemistry, National University of Singapore, Science Drive 3, Singapore 117543
| | - Yi-Fei Deng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| | - Qiang Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd, Dalian 116024, P. R. China
| | - Yin-Shan Meng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Rd, Dalian 116024, P. R. China
| | - Zoe Pikramenou
- School of Chemistry, The University of Birmingham, Edgbaston B15 2TT, UK.
| | - Yuan-Zhu Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China.
| |
Collapse
|
27
|
Üngör Ö, Choi ES, Shatruk M. Optimization of crystal packing in semiconducting spin-crossover materials with fractionally charged TCNQ δ- anions (0 < δ < 1). Chem Sci 2021; 12:10765-10779. [PMID: 34476058 PMCID: PMC8372557 DOI: 10.1039/d1sc02843j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/02/2021] [Indexed: 11/21/2022] Open
Abstract
Co-crystallization of the prominent Fe(ii) spin-crossover (SCO) cation, [Fe(3-bpp)2]2+ (3-bpp = 2,6-bis(pyrazol-3-yl)pyridine), with a fractionally charged TCNQ δ- radical anion has afforded a hybrid complex [Fe(3-bpp)2](TCNQ)3·5MeCN (1·5MeCN, where δ = -0.67). The partially desolvated material shows semiconducting behavior, with the room temperature conductivity σ RT = 3.1 × 10-3 S cm-1, and weak modulation of conducting properties in the region of the spin transition. The complete desolvation, however, results in the loss of hysteretic behavior and a very gradual SCO that spans the temperature range of 200 K. A related complex with integer-charged TCNQ- anions, [Fe(3-bpp)2](TCNQ)2·3MeCN (2·3MeCN), readily loses the interstitial solvent to afford desolvated complex 2 that undergoes an abrupt and hysteretic spin transition centered at 106 K, with an 11 K thermal hysteresis. Complex 2 also exhibits a temperature-induced excited spin-state trapping (TIESST) effect, upon which a metastable high-spin state is trapped by flash-cooling from room temperature to 10 K. Heating above 85 K restores the ground-state low-spin configuration. An approach to improve the structural stability of such complexes is demonstrated by using a related ligand 2,6-bis(benzimidazol-2'-yl)pyridine (bzimpy) to obtain [Fe(bzimpy)2](TCNQ)6·2Me2CO (4) and [Fe(bzimpy)2](TCNQ)5·5MeCN (5), both of which exist as LS complexes up to 400 K and exhibit semiconducting behavior, with σ RT = 9.1 × 10-2 S cm-1 and 1.8 × 10-3 S cm-1, respectively.
Collapse
Affiliation(s)
- Ökten Üngör
- Department of Chemistry and Biochemistry, Florida State University 95 Chieftan Way Tallahassee FL 32306 USA
| | - Eun Sang Choi
- National High Magnetic Field Laboratory 1800 E Paul Dirac Dr Tallahassee FL 32310 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry, Florida State University 95 Chieftan Way Tallahassee FL 32306 USA
- National High Magnetic Field Laboratory 1800 E Paul Dirac Dr Tallahassee FL 32310 USA
| |
Collapse
|
28
|
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
| | | |
Collapse
|
29
|
Brachňaková B, Moncoľ J, Pavlik J, Šalitroš I, Bonhommeau S, Valverde-Muñoz FJ, Salmon L, Molnár G, Routaboul L, Bousseksou A. Spin crossover metal-organic frameworks with inserted photoactive guests: on the quest to control the spin state by photoisomerization. Dalton Trans 2021; 50:8877-8888. [PMID: 34100495 DOI: 10.1039/d1dt01057c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three Hofmann-like metal-organic frameworks {Fe(bpac)[Pt(CN)4]}·G (bpac = 1,2-bis(4-pyridyl)acetylene) were synthesized with photoisomerizable guest molecules (G = trans-azobenzene, trans-stilbene or cis-stilbene) and were characterized by elemental analysis, thermogravimetry and powder X-ray diffraction. The insertion of guest molecules and their conformation were inferred from Raman and FTIR spectra and from single-crystal X-ray diffraction and confronted with computational simulation. The magnetic and photomagnetic behaviors of the framework are significantly altered by the different guest molecules and different conformations. On the other hand, photoisomerization of the guest molecules becomes strongly hindered by the framework.
Collapse
Affiliation(s)
- Barbora Brachňaková
- LCC, CNRS & Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France. and Department of Inorganic Chemistry. Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava SK-81237, Slovakia.
| | - Ján Moncoľ
- Department of Inorganic Chemistry. Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava SK-81237, Slovakia.
| | - Ján Pavlik
- Department of Inorganic Chemistry. Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava SK-81237, Slovakia.
| | - Ivan Šalitroš
- Department of Inorganic Chemistry. Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava SK-81237, Slovakia. and Department of Inorganic Chemistry. Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic and Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | | | | | - Lionel Salmon
- LCC, CNRS & Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France.
| | - Gábor Molnár
- LCC, CNRS & Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France.
| | - Lucie Routaboul
- LCC, CNRS & Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France.
| | - Azzedine Bousseksou
- LCC, CNRS & Université de Toulouse, 205 route de Narbonne, 31077 Toulouse, France.
| |
Collapse
|
30
|
Tiaouinine S, Flores Gonzalez J, Lefeuvre B, Guizouarn T, Cordier M, Dorcet V, Kaboub L, Cador O, Pointillart F. Spin Crossover and Field‐Induced Single‐Molecule Magnet Behaviour in Co(II) Complexes Based on Terpyridine with Tetrathiafulvalene Analogues. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100247] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Siham Tiaouinine
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
- Laboratory of Organic Materials and Heterochemistry University of Tebessa Rue de Constantine 12002 Tébessa Algeria
| | - Jessica Flores Gonzalez
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Bertrand Lefeuvre
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Thierry Guizouarn
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Marie Cordier
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Vincent Dorcet
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Lakehmici Kaboub
- Laboratory of Organic Materials and Heterochemistry University of Tebessa Rue de Constantine 12002 Tébessa Algeria
- Laboratory of Chemistry Molecular Engineering and Nanostructures University of Ferhat Abbas-Sétif 1 19000 Sétif Algeria
| | - Olivier Cador
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| | - Fabrice Pointillart
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226 35000 Rennes France
| |
Collapse
|
31
|
Montenegro-Pohlhammer N, Sánchez-de-Armas R, Calzado CJ, Borges-Martínez M, Cárdenas-Jirón G. A photo-induced spin crossover based molecular switch and spin filter operating at room temperature. Dalton Trans 2021; 50:6578-6587. [PMID: 33899067 DOI: 10.1039/d1dt00078k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since Venkataramani et al. (Science, 2011, 331(6016), 445-448) reported reversible, room-temperature light-induced spin crossover in Ni-porphyrin functionalized with a phenylazopyridine ligand (NiTPP-PAPy), this complex has attracted the attention of many researchers due to its potential applications in molecular-based devices. In this work, we perform a detailed study, by means of DFT and WFT methodologies, focused on the deposition of NiTP-PAPy over an Au(111) surface, followed by DFT-NEGF calculations employing a gold surface and the tip of an STM as electrodes, in order to probe the deposited complex's transport properties. Our DFT calculations show that not only the metalled porphyrin is strongly adsorbed on the surface, in both the high (HS) and low spin (LS) configurations, but also, and more importantly, photoinduced switching is preserved upon adsorption, a fact that is also confirmed through WFT and TD-DFT calculations. Moreover, our DFT-NEGF calculations indicate that the current passing through the molecular junction-like systems is much higher in the HS configuration than in the LS one, along with the fact that the current calculated in the ferromagnetic junction is highly spin-polarized. These remarkable transport properties suggest that the complex could be used as a component in molecular switches based on the total current passing through the system, modulated by light irradiation, spin filters due to the spin polarization of the carriers in the HS configuration, or even in two-step rectifiers combining the two features mentioned above, all of these operating at room temperature, giving to this complex the potential to be an active element in all kinds of future spintronic devices.
Collapse
Affiliation(s)
- Nicolás Montenegro-Pohlhammer
- Laboratory of Theoretical Chemistry, Faculty of Chemistry and Biology, University of Santiago de Chile (USACH), 9170022, Santiago, Chile.
| | | | | | | | | |
Collapse
|
32
|
Jakobsen VB, Chikara S, Yu JX, Dobbelaar E, Kelly CT, Ding X, Weickert F, Trzop E, Collet E, Cheng HP, Morgan GG, Zapf VS. Giant Magnetoelectric Coupling and Magnetic-Field-Induced Permanent Switching in a Spin Crossover Mn(III) Complex. Inorg Chem 2021; 60:6167-6175. [PMID: 33331784 DOI: 10.1021/acs.inorgchem.0c02789] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We investigate giant magnetoelectric coupling at a Mn3+ spin crossover in [MnIIIL]BPh4 (L = (3,5-diBr-sal)2323) with a field-induced permanent switching of the structural, electric, and magnetic properties. An applied magnetic field induces a first-order phase transition from a high spin/low spin (HS-LS) ordered phase to a HS-only phase at 87.5 K that remains after the field is removed. We observe this unusual effect for DC magnetic fields as low as 8.7 T. The spin-state switching driven by the magnetic field in the bistable molecular material is accompanied by a change in electric polarization amplitude and direction due to a symmetry-breaking phase transition between polar space groups. The magnetoelectric coupling occurs due to a γη2 coupling between the order parameter γ related to the spin-state bistability and the symmetry-breaking order parameter η responsible for the change of symmetry between polar structural phases. We also observe conductivity occurring during the spin crossover and evaluate the possibility that it results from conducting phase boundaries. We perform ab initio calculations to understand the origin of the electric polarization change as well as the conductivity during the spin crossover. Thus, we demonstrate a giant magnetoelectric effect with a field-induced electric polarization change that is 1/10 of the record for any material.
Collapse
Affiliation(s)
- Vibe B Jakobsen
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Shalinee Chikara
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Jie-Xiang Yu
- Department of Physics, University of Florida, Gainesville, Florida 32611, United States
| | - Emiel Dobbelaar
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Conor T Kelly
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Xiaxin Ding
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Franziska Weickert
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Elzbieta Trzop
- CNRS, IPR (Institut de Physique de Rennes), UMR 6251, Univ. Rennes, F-35000 Rennes, France
| | - Eric Collet
- CNRS, IPR (Institut de Physique de Rennes), UMR 6251, Univ. Rennes, F-35000 Rennes, France
| | - Hai-Ping Cheng
- Department of Physics, University of Florida, Gainesville, Florida 32611, United States
| | - Grace G Morgan
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - Vivien S Zapf
- National High Magnetic Field Lab, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| |
Collapse
|
33
|
Zakrzewski JJ, Heczko M, Jankowski R, Chorazy S. Reversible Humidity-Driven Transformation of a Bimetallic {EuCo} Molecular Material: Structural, Sorption, and Photoluminescence Studies. Molecules 2021; 26:1102. [PMID: 33669754 PMCID: PMC7923019 DOI: 10.3390/molecules26041102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/09/2021] [Accepted: 02/17/2021] [Indexed: 11/25/2022] Open
Abstract
Functional molecule-based solids built of metal complexes can reveal a great impact of external stimuli upon their optical, magnetic, electric, and mechanical properties. We report a novel molecular material, {[EuIII(H2O)3(pyrone)4][CoIII(CN)6]}·nH2O (1, n = 2; 2, n = 1), which was obtained by the self-assembly of Eu3+ and [Co(CN)6]3- ions in the presence of a small 2-pyrrolidinone (pyrone) ligand in an aqueous medium. The as-synthesized material, 1, consists of dinuclear cyanido-bridged {EuCo} molecules accompanied by two H-bonded water molecules. By lowering the relative humidity (RH) below 30% at room temperature, 1 undergoes a single-crystal-to-single-crystal transformation related to the partial removal of crystallization water molecules which results in the new crystalline phase, 2. Both 1 and 2 solvates exhibit pronounced EuIII-centered visible photoluminescence. However, they differ in the energy splitting of the main emission band of a 5D0 → 7F2 origin, and the emission lifetime, which is longer in the partially dehydrated 2. As the 1 ↔ 2 structural transformation can be repeatedly reversed by changing the RH value, the reported material shows a room-temperature switching of detailed luminescent features including the ratio between emission components and the emission lifetime values.
Collapse
Affiliation(s)
| | | | | | - Szymon Chorazy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland; (J.J.Z.); (M.H.); (R.J.)
| |
Collapse
|
34
|
Ershova IV, Bogomyakov AS, Kubrin SP, Cherkasov AV, Piskunov AV. Iron(III) Complexes Based on N-Benzylidene-2-Hydroxy-3,5-Di-tert-Butylaniline. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s1070328421010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
35
|
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...
Collapse
|
36
|
Nakaya M, Ohtani R, Lindoy LF, Hayami S. Light-induced excited spin state trapping in iron(iii) complexes. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01188f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review discusses the correlation of the local and whole molecular structure of iron(iii) complexes with the magnetic properties including the light-induced excited spin-state trapping (LIESST) effect.
Collapse
Affiliation(s)
- Manabu Nakaya
- Department of Chemistry
- Faculty of Science
- Josai University
- Sakado
- Japan
| | - Ryo Ohtani
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Fukuoka 819-0395
- Japan
| | | | - Shinya Hayami
- Department of Chemistry
- Faculty of Advanced Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| |
Collapse
|
37
|
Bondì L, Garden AL, Jerabek P, Totti F, Brooker S. Quantitative and Chemically Intuitive Evaluation of the Nature of M-L Bonds in Paramagnetic Compounds: Application of EDA-NOCV Theory to Spin Crossover Complexes. Chemistry 2020; 26:13677-13685. [PMID: 32671882 PMCID: PMC7702084 DOI: 10.1002/chem.202002146] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/25/2020] [Indexed: 11/16/2022]
Abstract
To improve understanding of M-L bonds in 3d transition metal complexes, analysis by energy decomposition analysis and natural orbital for chemical valence model (EDA-NOCV) is desirable as it provides a full, quantitative and chemically intuitive ab initio description of the M-L interactions. In this study, a generally applicable fragmentation and computational protocol was established and validated by using octahedral spin crossover (SCO) complexes, as the transition temperature (T1/2 ) is sensitive to subtle changes in M-L bonding. Specifically, EDA-NOCV analysis of Fe-N bonds in five [FeII (Lazine )2 (NCBH3 )2 ], in both low-spin (LS) and paramagnetic high-spin (HS) states led to: 1) development of a general, widely applicable, corrected M+L6 fragmentation, tested against a family of five LS [FeII (Lazine )3 ](BF4 )2 complexes; this confirmed that three Lazine are stronger ligands (ΔEorb,σ+π =-370 kcal mol-1 ) than 2 Lazine +2 NCBH3 (=-335 kcal mol-1 ), as observed. 2) Analysis of Fe-L bonding on LS→HS, reveals more ionic (ΔEelstat ) and less covalent (ΔEorb ) character (ΔEelstat :ΔEorb 55:45 LS→64:36 HS), mostly due to a big drop in σ (ΔEorb,σ ↓50 %; -310→-145 kcal mol-1 ), and a drop in π contributions (ΔEorb,π ↓90 %; -30→-3 kcal mol-1 ). 3) Strong correlation of observed T1/2 and ΔEorb,σ+π , for both LS and HS families (R2 =0.99 LS, R2 =0.95 HS), but no correlation of T1/2 and ΔΔEorb,σ+π (LS-HS) (R2 =0.11). Overall, this study has established and validated an EDA-NOCV protocol for M-L bonding analysis of any diamagnetic or paramagnetic, homoleptic or heteroleptic, octahedral transition metal complex. This new and widely applicable EDA-NOCV protocol holds great promise as a predictive tool.
Collapse
Affiliation(s)
- Luca Bondì
- Department of Chemistry andMacDiarmid Institute of Advanced Materials and NanotechnologyUniversity of OtagoPO Box 56Dunedin9054New Zealand
- Department of Chemistry “Ugo Schiff” and INSTM Research UnitUniversity of Florence50019Sesto FiorentinoItaly
| | - Anna L. Garden
- Department of Chemistry andMacDiarmid Institute of Advanced Materials and NanotechnologyUniversity of OtagoPO Box 56Dunedin9054New Zealand
| | - Paul Jerabek
- Centre for Theoretical Chemistry and PhysicsThe New Zealand Institute for Advanced Study andthe Institute for Natural and Mathematical SciencesMassey UniversityAucklandNew Zealand
- Department of NanotechnologyHelmholtz Centre for Materials and Coastal ResearchMax-Planck-Straße 121502GeesthachtGermany
| | - Federico Totti
- Department of Chemistry “Ugo Schiff” and INSTM Research UnitUniversity of Florence50019Sesto FiorentinoItaly
| | - Sally Brooker
- Department of Chemistry andMacDiarmid Institute of Advanced Materials and NanotechnologyUniversity of OtagoPO Box 56Dunedin9054New Zealand
| |
Collapse
|
38
|
Kobayashi F, Komatsumaru Y, Akiyoshi R, Nakamura M, Zhang Y, Lindoy LF, Hayami S. Water Molecule-Induced Reversible Magnetic Switching in a Bis-Terpyridine Cobalt(II) Complex Exhibiting Coexistence of Spin Crossover and Orbital Transition Behaviors. Inorg Chem 2020; 59:16843-16852. [DOI: 10.1021/acs.inorgchem.0c00818] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumiya Kobayashi
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Yuki Komatsumaru
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Ryohei Akiyoshi
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Masaaki Nakamura
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Yingjie Zhang
- Australian Nuclear Science and Technology Organization, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Leonard F. Lindoy
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - 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 Pulsed Power Science (IPPS), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| |
Collapse
|
39
|
Chorazy S, Zakrzewski JJ, Magott M, Korzeniak T, Nowicka B, Pinkowicz D, Podgajny R, Sieklucka B. Octacyanidometallates for multifunctional molecule-based materials. Chem Soc Rev 2020; 49:5945-6001. [PMID: 32685956 DOI: 10.1039/d0cs00067a] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Octacyanidometallates have been successfully employed in the design of heterometallic coordination systems offering a spectacular range of desired physical properties with great potential for technological applications. The [M(CN)8]n- ions comprise a series of complexes of heavy transition metals in high oxidation states, including NbIV, MoIV/V, WIV/V, and ReV. Since the discovery of the pioneering bimetallic {MnII4[MIV(CN)8]2} and {MnII9[MV(CN)8]6} (M = Mo, W) molecules in 2000, octacyanidometallates were fruitfully explored as precursors for the construction of diverse d-d or d-f coordination clusters and frameworks which could be obtained in the crystalline form under mild synthetic conditions. The primary interest in [M(CN)8]n--based networks was focused on their application as molecule-based magnets exhibiting long-range magnetic ordering resulting from the efficient intermetallic exchange coupling mediated by cyanido bridges. However, in the last few years, octacyanidometallate-based materials proved to offer varied and remarkable functionalities, becoming efficient building blocks for the construction of molecular nanomagnets, magnetic coolers, spin transition materials, photomagnets, solvato-magnetic materials, including molecular magnetic sponges, luminescent magnets, chiral magnets and photomagnets, SHG-active magnetic materials, pyro- and ferroelectrics, ionic conductors as well as electrochemical containers. Some of these materials can be processed into the nanoscale opening the route towards the development of magnetic, optical and electronic devices. In this review, we summarise all important achievements in the field of octacyanidometallate-based functional materials, with the particular attention to the most recent advances, and present a thorough discussion on non-trivial structural and electronic features of [M(CN)8]n- ions, which are purposefully explored to introduce desired physical properties and their combinations towards advanced multifunctional materials.
Collapse
Affiliation(s)
- Szymon Chorazy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Jakub J Zakrzewski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Michał Magott
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Tomasz Korzeniak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Beata Nowicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Robert Podgajny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Barbara Sieklucka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| |
Collapse
|
40
|
Chorazy S, Charytanowicz T, Pinkowicz D, Wang J, Nakabayashi K, Klimke S, Renz F, Ohkoshi S, Sieklucka B. Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure. Angew Chem Int Ed Engl 2020; 59:15741-15749. [DOI: 10.1002/anie.202007327] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Szymon Chorazy
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Tomasz Charytanowicz
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Dawid Pinkowicz
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Junhao Wang
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Koji Nakabayashi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Stephen Klimke
- Institute of Inorganic Chemistry Leibniz University Hannover Callinstrasse 9 30167 Hannover Germany
| | - Franz Renz
- Institute of Inorganic Chemistry Leibniz University Hannover Callinstrasse 9 30167 Hannover Germany
| | - Shin‐ichi Ohkoshi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Barbara Sieklucka
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| |
Collapse
|
41
|
Chorazy S, Charytanowicz T, Pinkowicz D, Wang J, Nakabayashi K, Klimke S, Renz F, Ohkoshi S, Sieklucka B. Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Szymon Chorazy
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Tomasz Charytanowicz
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Dawid Pinkowicz
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Junhao Wang
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Koji Nakabayashi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Stephen Klimke
- Institute of Inorganic Chemistry Leibniz University Hannover Callinstrasse 9 30167 Hannover Germany
| | - Franz Renz
- Institute of Inorganic Chemistry Leibniz University Hannover Callinstrasse 9 30167 Hannover Germany
| | - Shin‐ichi Ohkoshi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Barbara Sieklucka
- Faculty of Chemistry Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| |
Collapse
|
42
|
Hagiwara H, Minoura R, Udagawa T, Mibu K, Okabayashi J. Alternative Route Triggering Multistep Spin Crossover with Hysteresis in an Iron(II) Family Mediated by Flexible Anion Ordering. Inorg Chem 2020; 59:9866-9880. [PMID: 32589413 DOI: 10.1021/acs.inorgchem.0c01069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multistep spin crossover (SCO) compounds have attracted much attention, since they can be great candidates for high-density multinary memory devices. The introduction of substituents, such as methyl (Me), chloro (Cl), bromo (Br), and methoxy (MeO) groups, at para positions to the phenyl-substituted tripodal N6 ligand-coordinated SCO FeII material, [FeLPh](NTf2)2 [where LPh = tris(2-{[(1-phenyl-1H-1,2,3-triazol-4-yl)methylidene]amino}ethyl)amine and NTf2 = bis(trifluoromethanesulfonyl)imide], affords a new family of solvent-free FeII complexes: [FeL4-R-Ph](NTf2)2 {where L4-R-Ph = tris[2-({[1-(4-R-phenyl)-1H-1,2,3-triazol-4-yl]methylidene}amino)ethyl]amine, where R = Me (1), Cl (2), Br (3), and MeO (4)}. 1 shows temperature invariant high-spin (HS) state, whereas the others show spin transitions with different characteristics, such as half-SCO (4), two-step SCO (3), and unusual three-step SCO with hysteresis (2). Mössbauer and X-ray absorption fine structure (XAFS) spectroscopic studies of them support the magnetic susceptibilities results. Density functional theory calculations indicate that the electronic effect of different substituents on magnetic properties is negligible in this FeII family. Single-crystal X-ray diffraction studies reveal that 1-4 has a similar packing arrangement with three-dimensional supramolecular network via intermolecular π-π and CH···π interactions between complex cations, and CH···X (X = O, N, and F) hydrogen bonding interactions between cations and inherently frustrated NTf2 anions. Variable-temperature structural studies unveil a variety of stepped SCO behaviors of 2-4 and deactivation of SCO in 1 are governed by the regulation of ordering of NTf2 counteranions through the subtle modification of terminal substituents of complex cations. Quantitative light-induced excited spin-state trapping (LIESST) effect was observed for 2-4 via green light irradiation (532 nm) at 10 K. This study opens up a new way for systematic control of magnetic response from no SCO to half-, two-step, and finally three-step SCO with hysteresis by precise tuning of the ordering of flexible NTf2 anions included in the supramolecular network with potentially SCO-active complex cations.
Collapse
Affiliation(s)
- Hiroaki Hagiwara
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Ryo Minoura
- Department of Chemistry, Faculty of Education, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Taro Udagawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Ko Mibu
- Graduate School of Engineering, Nagoya Institute of Technology, Nagoya, Aichi 466-8555, Japan
| | - Jun Okabayashi
- Research Center for Spectrochemistry, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
43
|
Becker PM, Förster C, Carrella LM, Boden P, Hunger D, van Slageren J, Gerhards M, Rentschler E, Heinze K. Spin Crossover and Long-Lived Excited States in a Reduced Molecular Ruby. Chemistry 2020; 26:7199-7204. [PMID: 32167607 PMCID: PMC7318154 DOI: 10.1002/chem.202001237] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Indexed: 12/27/2022]
Abstract
The chromium(III) complex [CrIII (ddpd)2 ]3+ (molecular ruby; ddpd=N,N'-dimethyl-N,N'-dipyridine-2-yl-pyridine-2,6-diamine) is reduced to the genuine chromium(II) complex [CrII (ddpd)2 ]2+ with d4 electron configuration. This reduced molecular ruby represents one of the very few chromium(II) complexes showing spin crossover (SCO). The reversible SCO is gradual with T1/2 around room temperature. The low-spin and high-spin chromium(II) isomers exhibit distinct spectroscopic and structural properties (UV/Vis/NIR, IR, EPR spectroscopies, single-crystal XRD). Excitation of [CrII (ddpd)2 ]2+ with UV light at 20 and 290 K generates electronically excited states with microsecond lifetimes. This initial study on the unique reduced molecular ruby paves the way for thermally and photochemically switchable magnetic systems based on chromium complexes complementing the well-established iron(II) SCO systems.
Collapse
Affiliation(s)
- Patrick M. Becker
- Department of ChemistryJohannes Gutenberg University of MainzDuesbergweg 10-1455128MainzGermany
| | - Christoph Förster
- Department of ChemistryJohannes Gutenberg University of MainzDuesbergweg 10-1455128MainzGermany
| | - Luca M. Carrella
- Department of ChemistryJohannes Gutenberg University of MainzDuesbergweg 10-1455128MainzGermany
| | - Pit Boden
- Department of Chemistry and Research Center OptimasUniversity KaiserslauternErwin-Schrödinger-Straße67663KaiserslauternGermany
| | - David Hunger
- Institute of Physical Chemistry and Center for, Integrated Quantum Science and TechnologyUniversity of StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Joris van Slageren
- Institute of Physical Chemistry and Center for, Integrated Quantum Science and TechnologyUniversity of StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Markus Gerhards
- Department of Chemistry and Research Center OptimasUniversity KaiserslauternErwin-Schrödinger-Straße67663KaiserslauternGermany
| | - Eva Rentschler
- Department of ChemistryJohannes Gutenberg University of MainzDuesbergweg 10-1455128MainzGermany
| | - Katja Heinze
- Department of ChemistryJohannes Gutenberg University of MainzDuesbergweg 10-1455128MainzGermany
| |
Collapse
|
44
|
Thammasangwan W, Harding P, Telfer SG, Alkaş A, Phonsri W, Murray KS, Clérac R, Rouzières M, Chastanet G, Harding DJ. Thermal and Light‐Activated Spin Crossover in Iron(III) qnal Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000115] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Warisa Thammasangwan
- Functional Materials and Nanotechnology Center of Excellence Walailak University Thasala 80160 Nakhon Si Thammarat Thailand
| | - Phimphaka Harding
- Functional Materials and Nanotechnology Center of Excellence Walailak University Thasala 80160 Nakhon Si Thammarat Thailand
| | - Shane G. Telfer
- MacDiarmid Institute for Advanced Materials and Nanotechnology Institute of Fundamental Sciences Massey University PO Box 600 6140 Wellington New Zealand
| | - Adil Alkaş
- MacDiarmid Institute for Advanced Materials and Nanotechnology Institute of Fundamental Sciences Massey University PO Box 600 6140 Wellington New Zealand
| | - Wasinee Phonsri
- School of Chemistry Institute of Fundamental Sciences Monash University Clayton 3800 Melbourne Victoria Australia
| | - Keith S. Murray
- School of Chemistry Institute of Fundamental Sciences Monash University Clayton 3800 Melbourne Victoria Australia
| | - Rodolphe Clérac
- Centre de Recherche Paul Pascal, UMR 5031 Institute of Fundamental Sciences Univ. Bordeaux, CNRS 33600 Pessac France
| | - Mathieu Rouzières
- Centre de Recherche Paul Pascal, UMR 5031 Institute of Fundamental Sciences Univ. Bordeaux, CNRS 33600 Pessac France
| | - Guillaume Chastanet
- ICMCB Institute of Fundamental Sciences CNRS, Université de Bordeaux 87 avenue du Dr A. Schweitzer 33608 Pessac France
| | - David J. Harding
- Functional Materials and Nanotechnology Center of Excellence Walailak University Thasala 80160 Nakhon Si Thammarat Thailand
| |
Collapse
|
45
|
Stefańczyk O, Ohkoshi SI. Synthesis of Two-Dimensional Photomagnetic K4{[CuII(ida)]2[MIV(CN)8]}·4H2O (MIV = Mo, W) Materials. Inorg Chem 2020; 59:4292-4299. [DOI: 10.1021/acs.inorgchem.9b03076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olaf Stefańczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shin-ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
46
|
|
47
|
Vela S, Fumanal M, Cirera J, Ribas-Arino J. Thermal spin crossover in Fe(ii) and Fe(iii). Accurate spin state energetics at the solid state. Phys Chem Chem Phys 2020; 22:4938-4945. [DOI: 10.1039/d0cp00162g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Parametrization of PBE+U under the D3 and D3-BJ dispersion corrections to study FeII and FeIII-based Spin Crossover complexes.
Collapse
Affiliation(s)
- Sergi Vela
- Laboratory for Computational Molecular Design
- Institute of Chemical Sciences and Engineering
- EPFL
- CH-1015 Lausanne
- Switzerland
| | - Maria Fumanal
- Laboratoire de Chimie Quantique
- UMR 7111
- CNRS-Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Jordi Cirera
- Departament de Química Inorganica i Orgànica and IQTCUB
- Universitat de Barcelona
- Barcelona
- Spain
| | - Jordi Ribas-Arino
- Departament de Ciència de Materials i Química Física and IQTCUB
- Universitat de Barcelona
- Barcelona
- Spain
| |
Collapse
|
48
|
Berdiell IC, Hochdörffer T, Desplanches C, Kulmaczewski R, Shahid N, Wolny JA, Warriner SL, Cespedes O, Schünemann V, Chastanet G, Halcrow MA. Supramolecular Iron Metallocubanes Exhibiting Site-Selective Thermal and Light-Induced Spin-Crossover. J Am Chem Soc 2019; 141:18759-18770. [DOI: 10.1021/jacs.9b08862] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Izar Capel Berdiell
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Tim Hochdörffer
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | | | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Namrah Shahid
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Juliusz A. Wolny
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | - Stuart L. Warriner
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Oscar Cespedes
- School of Physics and Astronomy, EC Stoner Building, University of Leeds, Leeds LS2 9JT, U.K
| | - Volker Schünemann
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | | | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| |
Collapse
|
49
|
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
| |
Collapse
|
50
|
Gardinier JR, Meise KJ, Jahan F, Wang D, Lindeman SV. Selective Isomer Formation and Crystallization-Directed Magnetic Behavior in Nitrogen-Confused C-Scorpionate Complexes of Fe(O 3SCF 3) 2. Inorg Chem 2019; 58:8953-8968. [PMID: 31247826 DOI: 10.1021/acs.inorgchem.8b03454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The complex [Fe(HL*)2](OTf)2, 1, where HL* = bis(3,5-dimethylpyrazol-1-yl)(3-1H-pyrazole)methane, was prepared in order to compare its magnetic properties with those of the analogous parent complex, [Fe(HL)2](OTf)2, that lacks methyl groups on pyrazolyl rings and that undergoes spin crossover (SCO) from the low spin (LS) to the high spin (HS) form above room temperature. It was anticipated that this new semibulky derivative should favor the HS state and undergo SCO at a lower temperature range. During this study, six crystalline forms of 1 were prepared by controlling the crystallization conditions. Thus, when reagents are combined in CH3CN, an equilibrium mixture of cis and trans isomers is established that favors the latter below 311 K. The trans isomer can be isolated exclusively as a mixture of solvates, LS trans-1·2CH3CN and HS trans-1·4CH3CN, by cooling CH3CN solutions to -20 °C with the former being favored at high concentrations and short crystallization times. Subsequently, vapor diffusion of Et2O into CH3CN solutions of pure trans-1·2CH3CN gives solvate-free HS trans-1. Subjecting trans-1·2CH3CN to vacuum at room temperature gives microcrystalline trans-1·CH3CN, identified by elemental analysis and its distinct powder X-ray diffraction pattern. If an isomeric mixture of 1 is subject to room-temperature vapor diffusion, then a crystalline mixture of HS isomers cis-1 and trans-1 is obtained. Finally, slowly cooling hot acetonitrile solutions of isomeric mixtures of 1 to room temperature gives large prisms of HS co-1, a species with both cis and trans isomers in the unit cell. The complexes trans-1, trans-1·CH3CN, cis-1, and co-1 undergo SCO below 250 K while trans-1·xCH3CN (x = 2, 4) solvates do not undergo SCO before desolvation.
Collapse
Affiliation(s)
- James R Gardinier
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Kristin J Meise
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Fathiya Jahan
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Denan Wang
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Sergey V Lindeman
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| |
Collapse
|