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Visinescu D, Shylin SI, Shova S, Novitchi G, Popescu DL, Alexandru MG. New cyanido-bridged iron(II) spin crossover coordination polymers with an unusual ladder-like topology: an alternative to Hofmann clathrates. Dalton Trans 2024; 53:9062-9071. [PMID: 38738339 DOI: 10.1039/d4dt00870g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Two new cyanido-bridged {FeIIMII} double chains were obtained by reacting cyanido anions [M(CN)4]2- with complex cations [FeII(tptz)]2+ (preformed in situ by mixing a hydrated tetrafluoroborate salt of iron(II) and a tptz ligand, tptz = 2,4,6-tri(2-pyridyl)-1,3,5-triazine) having the general formula [FeII(tptz)MII(CN)4]·2H2O·CH3CN, where M = Pd (1) or Pt (2). Additionally, two molecular complexes formulated as [FeII(tptz)2][MII(CN)4]·4.25H2O, where M = Pd (3) or Pt (4), were subsequently obtained from the same reaction, as secondary products. Single crystal X-ray analysis revealed that 1 and 2 are isostructural and crystallize in the P-1 triclinic space group. Their structure consists of a double-chain with a ladder-like topology, in which cyanido-based [M(CN)4]2- metalloligands coordinate, through three CN- ligands and three [FeII(tptz)]2+ complex cations. Compounds 3 and 4 are also isostructural and crystallize in the P1̄ triclinic space group, and the X-ray structural data show the formation of [FeII(tptz)2]2+ and [MII(CN)4]2- ionic units interconnected through H-bonds and π⋯π stacking supramolecular interactions. The static DC magnetic measurements recorded in the temperature range of 2-300 K showed that 1 and 2 exhibit incomplete spin transition on cooling, which is also confirmed by single crystal XRD analysis and Mössbauer spectroscopy. Compounds 3 and 4 are diamagnetic, most likely due to the encapsulation of Fe(II) in a tight pocket formed by two tptz ligands that preserve the low-spin state in the temperature range of 2-400 K.
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Affiliation(s)
- Diana Visinescu
- Coordination and Supramolecular Chemistry Laboratory, "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, Bucharest 060021, Romania
| | - Sergii I Shylin
- Department of Chemistry - Ångström Laboratory, Uppsala University, 75120 Uppsala, Sweden
| | - Sergiu Shova
- Petru Poni Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Vodă 41-A, RO-700487 Iasi, Romania
| | - Ghenadie Novitchi
- Laboratoire National des Champs Magnétiques Intenses (LNCMI), Univ. Grenoble Alpes, EMFL, CNRS 38042 Grenoble, France.
| | - Delia-Laura Popescu
- Faculty of Chemistry, University of Bucharest, Regina Elisabeta Blvd 4-12, Bucharest 030018, Romania
| | - Maria-Gabriela Alexandru
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania.
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2
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Shakirova OG, Os'kina IA, Korotaev EV, Petrov SA, Kuratieva NV, Tikhonov AY, Lavrenova LG. Spin Crossover and Thermochromism in Iron(II) Complexes with 2,6-Bis(1 H-imidazol-2-yl)-4-methoxypyridine. Int J Mol Sci 2023; 24:9853. [PMID: 37373001 DOI: 10.3390/ijms24129853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 05/24/2023] [Accepted: 06/04/2023] [Indexed: 06/29/2023] Open
Abstract
New iron(II) complexes with 2,6-bis(1H-imidazol-2-yl)-4-methoxypyridine (L) of the composition [FeL2]An∙mH2O (A = SO42-, n = 1, m = 2 (I); A = ReO4-, n = 2, m = 1 (II); A = Br-, n = 2, m = 2 (III)) have been synthesized and investigated. To determine the coordination ability of the ligand, a single crystal of a copper(II) complex of the composition [CuLCl2] (IV) was obtained and studied by X-ray technique. Compounds I-III were studied using methods of X-ray phase analysis, electron (diffuse reflection spectra), infrared and Mössbauer spectroscopy, static magnetic susceptibility. The study of the µeff(T) dependence showed that the 1A1 ↔ 5T2 spin crossover manifests itself in the compounds. The spin crossover is accompanied by thermochromism: there is a distinct color change orange ↔ red-violet.
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Affiliation(s)
- Olga G Shakirova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Chemistry and Chemical Technologies, Faculty of Machinery and Chemical Technologies, Federal State Budget Institution of Higher Education, Komsomolsk-na-Amure State University, 681013 Komsomolsk-on-Amur, Russia
| | - Irina A Os'kina
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Evgeniy V Korotaev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Sergey A Petrov
- Institute of Solid State Chemistry, Siberian Branch, Russian Academy of Sciences, 630128 Novosibirsk, Russia
| | - Natalia V Kuratieva
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Alexsei Ya Tikhonov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Lyudmila G Lavrenova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
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3
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Lonergan RF, Conway GA, Doheny PW, Shepherd HJ. Spontaneous Synthesis of [Fe II (Atrz) 3 ]SO 4 and its Analogues Through Accelerated Ageing: New Insights from Small-Scale Reactions. Chemistry 2022; 28:e202201823. [PMID: 35984234 PMCID: PMC9826154 DOI: 10.1002/chem.202201823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Indexed: 01/11/2023]
Abstract
Accelerated ageing reactions that take place between two solid materials on contact in the absence of added solvent have been used to synthesize two spin-crossover-active 1D coordination polymers and one of their Cu(II) analogues. The hygroscopy of the ligands and the relative humidity of the reaction chamber have been shown to be particularly important factors in the rate of reaction. Small-scale reactions between a few individual crystals have allowed observation of deliquescence of the 4-aminotriazole ligand at high humidity. The metal salt does not dissolve, and the ligand diffuses into the crystal of the metal salt during the reaction. In the case of the Cu analogue, the formation of the product causes the crystal of the metal salt to deform with the formation of pseudocrystals, which have a fibrous structure.
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Affiliation(s)
- Rhona F. Lonergan
- School of Physical SciencesUniversity of KentGiles LaneCanterburyCT2 7NZUK
| | - Georgina A. Conway
- School of Physical SciencesUniversity of KentGiles LaneCanterburyCT2 7NZUK
| | - Patrick W. Doheny
- School of Physical SciencesUniversity of KentGiles LaneCanterburyCT2 7NZUK
| | - Helena J. Shepherd
- School of Physical SciencesUniversity of KentGiles LaneCanterburyCT2 7NZUK
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4
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Investigation of Solutions of Iron(II) Complexes with Tris(pyrazol-1-yl)methane, Possessing the Spin-Crossover Phenomenon. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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Al Shehimy S, Baydoun O, Denis-Quanquin S, Mulatier JC, Khrouz L, Frath D, Dumont É, Murugesu M, Chevallier F, Bucher C. Ni-Centered Coordination-Induced Spin-State Switching Triggered by Electrical Stimulation. J Am Chem Soc 2022; 144:17955-17965. [PMID: 36154166 DOI: 10.1021/jacs.2c07196] [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 herein report the synthesis and magnetic properties of a Ni(II)-porphyrin tethered to an imidazole ligand through a flexible electron-responsive mechanical hinge. The latter is capable of undergoing a large amplitude and fully reversible folding motion under the effect of electrical stimulation. This redox-triggered movement is exploited to force the axial coordination of the appended imidazole ligand onto the square-planar Ni(II) center, resulting in a change in its spin state from low spin (S = 0) to high spin (S = 1) proceeding with an 80% switching efficiency. The driving force of this reversible folding motion is the π-dimerization between two electrogenerated viologen cation radicals. The folding motion and the associated spin state switching are demonstrated on the grounds of NMR, (spectro)electrochemical, and magnetic data supported by quantum calculations.
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Affiliation(s)
- Shaymaa Al Shehimy
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Orsola Baydoun
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | | | | | - Lhoussain Khrouz
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Denis Frath
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Élise Dumont
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France.,Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Floris Chevallier
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
| | - Christophe Bucher
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69342 Lyon, France
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Bibik YS, Shova S, Rotaru A, Shylin SI, Fritsky IO, Lampeka RD, Gural'skiy IA. Cooperative Spin Crossover above Room Temperature in the Iron(II) Cyanoborohydride-Pyrazine Complex. Inorg Chem 2022; 61:14761-14769. [PMID: 36067517 DOI: 10.1021/acs.inorgchem.2c02177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hysteretic spin crossover in coordination complexes of 3d-metal ions represents one of the most spectacular phenomena of molecular bistability. In this paper we describe a self-assembly of pyrazine (pz) and Fe(BH3CN)2 that afforded the new 2D coordination polymer [Fe(pz)2(BH3CN)2]∞. It undergoes an abrupt, hysteretic spin crossover (SCO) with a T1/2 of 338 K (heating) and 326 K (cooling) according to magnetic susceptibility measurements. Mössbauer spectroscopy revealed a complete transition between the low-spin (LS) and the high-spin (HS) states of the iron centers. This LS-to-HS transition induced an increase of the unit cell volume by 10.6%. Meanwhile, a modulation of multiple [C-Hδ+···Hδ--B] dihydrogen bonds stimulates a contraction in direction c (2.2%). The simplicity of the synthesis, mild temperatures of transition, a pronounced thermochromism, stability upon thermal cycling, a striking volume expansion upon SCO, and an easy processability to composite films make this new complex an attractive material for switchable components of diverse applications.
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Affiliation(s)
- Yurii S Bibik
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., 01601 Kyiv, Ukraine
| | - Sergiu Shova
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania
| | - Aurelian Rotaru
- Faculty of Electrical Engineering and Computer Science & MANSiD Research Center, Ştefan cel Mare University, Universitatii St. 13, 720229 Suceava, Romania
| | - Sergii I Shylin
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Igor O Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., 01601 Kyiv, Ukraine
| | - Rostyslav D Lampeka
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., 01601 Kyiv, Ukraine
| | - Il'ya A Gural'skiy
- Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska St., 01601 Kyiv, Ukraine
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7
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Ivanova AD, Lavrenova LG, Korotaev EV, Trubina SV, Tikhonov AY, Kriventsov VV, Petrov SA, Zhizhin KY, Kuznetsov NT. Study of Spin-Crossover in Iron(II) Complexes with 2,6-Bis(4,5-Dimethyl-1H-Imidazol-2-yl)Pyridine and closo-Borate Anions. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622080174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract
New iron(II) coordination compounds with 2,6-bis(4,5-dimethyl-1H-imidazol-2-yl)pyridine (L) and closo-borate(2–) anions [FeL2]B10H10⋅2H2O and [FeL2]B12H12⋅H2O have been synthesized. The compounds have been identified and studied by CHN analysis, electron spectroscopy (diffuse reflection spectroscopy), IR, Mössbauer, and EXAFS spectroscopies, X-ray powder diffraction, and static magnetic susceptibility. The structures of the coordination knots of complexes [FeL2]B10H10⋅2H2O and [FeL2]B12H12⋅H2O has been obtained by modeling the EXAFS spectra. The ligand is coordinated by the iron(II) ion in a tridentate-cyclic manner by two nitrogen atoms of imidazole cycles and a nitrogen atom of pyridine to form the FeN6 coordination knot. The study of the temperature dependence of the magnetic susceptibility in the range of 80–500 K has showed that the high-temperature spin-crossover 1А1 ↔ 5Т2 manifests itself in the obtained compounds.
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8
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Zapolotsky EN, Babailov SP, Chuykov IP, Kokovkin VV, Shakirova OG. SPIN CROSSOVER AND TEMPERATURE SENSITIVITY OF PARAMAGNETIC NMR CHEMICAL SHIFTS IN AN AQUEOUS SOLUTION OF THE IRON(II) NAPHTHALENESULFONATE COMPLEX WITH TRIS(PYRAZOL-1-YL)METHANE [Fe(HC(Pz)3)2](C10H7SO3)2. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622060099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Spin crossover in iron(II) complexes with new ligand 2,6-bis(4,5-dimethyl-1H-imidazole-2-yl)pyridine. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120746] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Shylin SI, Shova S, Shepherd HJ, Ksenofontov V, Tremel W, Gural'skiy IA. 1D iron(II)-1,2,4-triazolic chains with spin crossover assembled from discrete trinuclear complexes. Dalton Trans 2022; 51:2364-2369. [PMID: 35043827 DOI: 10.1039/d2dt00004k] [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
We report on a molecular cationic iron(II) complex with a 4-amino-1,2,4-triazole ligand and a tetraiodomercurate anion exhibiting an incomplete spin crossover (SCO). The complex exhibits an unusual disordered structure with a linear arrangement of ligand and water molecules that can potentially accommodate up to four iron atoms, but both terminal metal positions have half chemical occupancies, while occupancies of all ligands are full. This corresponds to the crystallisation of disordered trinuclear complexes arranged into 1D supramolecular chains. Iron cations have different N6 or N3O3 coordination environments, leading to the thermally induced SCO in two thirds of the metal centres. This SCO behaviour was characterised by magnetic susceptibility measurements and Mössbauer spectroscopy.
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Affiliation(s)
- Sergii I Shylin
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine. .,Department of Chemistry - Ångström Laboratory, Uppsala University, PO Box 523, 75120 Uppsala, Sweden
| | - Sergiu Shova
- Petru Poni Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Helena J Shepherd
- Supramolecular, Interfacial & Synthetic Chemistry Group, School of Physical Sciences, University of Kent, Canterbury CT2 7NH, UK
| | - Vadim Ksenofontov
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Wolfgang Tremel
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Il'ya A Gural'skiy
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine.
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11
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Chen XK, Chen XM, Xi YR, Sun WC, Wang YT, Wu YS, Kang MH, Tang GM. The position of NH2-subsituted group controlled the luminescent properties based on 4-amino-4H-1,2,4-triazole: Syntheses, crystal structures and Hirshfeld analyses. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122647] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Babailov S, Zapolotsky E, Kokovkin V, Shakirova O, Mironov I, Chuikov I, Fomin E. Switching of shifting and relaxational NMR-thermosensor properties of iron (II) tris-(pyrazol-1-yl) methane complexes due to spin-crossover. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115611] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Astakhov AV, Chernenko AY, Kutyrev VV, Ranny GS, Minyaev ME, Chernyshev VM, Ananikov VP. Selective Buchwald–Hartwig arylation of C-amino-1,2,4-triazoles and other coordinating aminoheterocycles enabled by bulky NHC ligands and TPEDO activator. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01832b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A facile method for selective N-(hetero)arylation of coordinating 3(5)-amino-1,2,4-triazoles under Pd/NHC catalysis using TPEDO as a new efficient Pd(ii) to Pd(0) reductant has been developed.
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Affiliation(s)
- Alexander V. Astakhov
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
| | - Andrey Yu. Chernenko
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
| | - Vadim V. Kutyrev
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
| | - Gleb S. Ranny
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
| | - Mikhail E. Minyaev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University, (NPI), Prosvescheniya st., 132, Novocherkassk, 346428, Russia
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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14
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The substituent effect on the luminescent properties of a set of 4-amino-4-1,2,4-triazole: Syntheses, crystal structures and Hirshfeld analyses. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130893] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Kokovkin VV, Kal'nyi DB, Korotaev EV, Shakirova OG, Lavrenova LG. Electrochemical studies of iron(II) complexeswith 4‐amino‐1,2,4‐triazole possessing spin crossover. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vasily V. Kokovkin
- Nikolaev Institute of Inorganic Chemistry SB RAS 3, Lavrentiev Ave. Novosibirsk 630090 Russia
- Analytical Chemistry Department Faculty of Natural Sciences Novosibirsk National Research State University 2, Pirogov Str. Novosibirsk 630090 Russia
| | - Danila B. Kal'nyi
- Nikolaev Institute of Inorganic Chemistry SB RAS 3, Lavrentiev Ave. Novosibirsk 630090 Russia
- Analytical Chemistry Department Faculty of Natural Sciences Novosibirsk National Research State University 2, Pirogov Str. Novosibirsk 630090 Russia
| | - Evgenii V. Korotaev
- Nikolaev Institute of Inorganic Chemistry SB RAS 3, Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Olga G. Shakirova
- Nikolaev Institute of Inorganic Chemistry SB RAS 3, Lavrentiev Ave. Novosibirsk 630090 Russia
- Komsomolsky-na-Amure State Technical University 27, Lenin Ave. Komsomolsk-on-Amur 681013 Russia
| | - Ludmila G. Lavrenova
- Nikolaev Institute of Inorganic Chemistry SB RAS 3, Lavrentiev Ave. Novosibirsk 630090 Russia
- Analytical Chemistry Department Faculty of Natural Sciences Novosibirsk National Research State University 2, Pirogov Str. Novosibirsk 630090 Russia
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16
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Nath A, Asha KS, Mandal S. Conductive Metal-Organic Frameworks: Electronic Structure and Electrochemical Applications. Chemistry 2021; 27:11482-11538. [PMID: 33857340 DOI: 10.1002/chem.202100610] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Indexed: 12/14/2022]
Abstract
Smarter and minimization of devices are consistently substantial to shape the energy landscape. Significant amounts of endeavours have come forward as promising steps to surmount this formidable challenge. It is undeniable that material scientists were contemplating smarter material beyond purely inorganic or organic materials. To our delight, metal-organic frameworks (MOFs), an inorganic-organic hybrid scaffold with unprecedented tunability and smart functionalities, have recently started their journey as an alternative. In this review, we focus on such propitious potential of MOFs that was untapped over a long time. We cover the synthetic strategies and (or) post-synthetic modifications towards the formation of conductive MOFs and their underlying concepts of charge transfer with structural aspects. We addressed theoretical calculations with the experimental outcomes and spectroelectrochemistry, which will trigger vigorous impetus about intrinsic electronic behaviour of the conductive frameworks. Finally, we discussed electrocatalysts and energy storage devices stemming from conductive MOFs to meet energy demand in the near future.
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Affiliation(s)
- Akashdeep Nath
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
| | - K S Asha
- School of Chemistry and Biochemistry, M. S. Ramaiah College of Arts Science and Commerce, Bangaluru, 560054, India
| | - Sukhendu Mandal
- School of Chemistry, Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala, 695551, India
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17
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Kokovkin VV, Korotaev EV, Mironov IV, Lavrenova LG. PHYSICOCHEMICAL STUDY OF SPIN CROSSOVER IN THE IRON(II) NAPHTHALENE-2-SULFONATE COMPLEX WITH 4-AMINO-1,2,4-TRIAZOLE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621080047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Sánchez‐Molina I, Moneo‐Corcuera A, Nieto‐Castro D, Benet‐Buchholz J, Galán‐Mascarós JR. Solvent Effect on the Spin State of an Iron(II)‐Triazole Trimer. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202000765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Irene Sánchez‐Molina
- The Barcelona Institute of Science and Technology (BIST) Institute of Chemical Research of Catalonia (ICIQ) Av. Paisos Catalans, 16. 43007 Tarragona Spain
| | - Andrea Moneo‐Corcuera
- The Barcelona Institute of Science and Technology (BIST) Institute of Chemical Research of Catalonia (ICIQ) Av. Paisos Catalans, 16. 43007 Tarragona Spain
| | - David Nieto‐Castro
- The Barcelona Institute of Science and Technology (BIST) Institute of Chemical Research of Catalonia (ICIQ) Av. Paisos Catalans, 16. 43007 Tarragona Spain
| | - Jordi Benet‐Buchholz
- The Barcelona Institute of Science and Technology (BIST) Institute of Chemical Research of Catalonia (ICIQ) Av. Paisos Catalans, 16. 43007 Tarragona Spain
| | - José Ramón Galán‐Mascarós
- The Barcelona Institute of Science and Technology (BIST) Institute of Chemical Research of Catalonia (ICIQ) Av. Paisos Catalans, 16. 43007 Tarragona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
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19
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Kuzevanova IS, Kucheriv OI, Hiiuk VM, Naumova DD, Shova S, Shylin SI, Kotsyubynsky VO, Rotaru A, Fritsky IO, Gural'skiy IA. Spin crossover in iron(II) Hofmann clathrates analogues with 1,2,3-triazole. Dalton Trans 2021; 50:9250-9258. [PMID: 34128522 DOI: 10.1039/d1dt01544c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Hofmann-like cyanometallic complexes represent one of the biggest and well-known classes of FeII spin-crossover compounds. In this paper, we report on the first FeII Hofmann clathrate analogues with unsubstituted 1,2,3-triazole, which exhibit temperature induced spin transition. Two new coordination polymers with the general formula [FeII(1,2,3-triazole)2MII(CN)4] (M = Pt, Pd) undergo abrupt hysteretic spin crossover in the range of 190-225 K as revealed by magnetic susceptibility measurements. Two compounds are isostructural and are built of infinite cyanometallic layers which are supported by 1,2,3-triazole ligands. The thermal hysteresis loop is very stable at different scan rates from 0.5 to 10 K min-1. The compounds display strong thermochromic effect, changing their colour from pink in the low-spin state to white in the high-spin state. Our findings show that 1,2,3-triazole is suitable for elaboration of spin-crossover Hofmann clathrate analogues, and its use instead of more classical azines can advantageously expand this family of complexes.
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Affiliation(s)
- Iryna S Kuzevanova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine. and Department of General and Inorganic Chemistry, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Peremogy Pr. 37, Kyiv 03056, Ukraine
| | - Olesia I Kucheriv
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine. and UkrOrgSyntez Ltd, Chervonotkatska St. 67, Kyiv 02094, Ukraine
| | - Volodymyr M Hiiuk
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine. and UkrOrgSyntez Ltd, Chervonotkatska St. 67, Kyiv 02094, Ukraine
| | - Dina D Naumova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
| | - Sergiu Shova
- Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi 700487, Romania
| | - Sergii I Shylin
- Department of Chemistry - Ångström Laboratory, Uppsala University, 75120 Uppsala, Sweden
| | - Volodymyr O Kotsyubynsky
- Department of Material Science and New Technology, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk 76018, Ukraine
| | - Aurelian Rotaru
- Faculty of Electrical Engineering and Computer Science &MANSiD Research Center, Stefan cel Mare University, Universitatii St. 13, Suceava 720229, Romania
| | - Igor O Fritsky
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine. and UkrOrgSyntez Ltd, Chervonotkatska St. 67, Kyiv 02094, Ukraine
| | - Il'ya A Gural'skiy
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine. and UkrOrgSyntez Ltd, Chervonotkatska St. 67, Kyiv 02094, Ukraine
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20
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Djemel A, Stefańczyk O, Desplanches C, Kumar K, Delimi R, Benaceur F, Ohkoshi SI, Chastanet G. Switching on thermal and light-induced spin crossover by desolvation of the [Fe(3-bpp)2](XO4)2·solvent (X = Cl, Re) compounds. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00446h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal desolvation is a very attractive method for post-synthetic modification of the physico-chemical properties of switchable materials. In this field of research, special attention is paid to the possibility of...
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21
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Daro N, Vaudel T, Afindouli L, Marre S, Aymonier C, Chastanet G. One-Step Synthesis of Spin Crossover Nanoparticles Using Flow Chemistry and Supercritical CO 2. Chemistry 2020; 26:16286-16290. [PMID: 32648612 DOI: 10.1002/chem.202002322] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Indexed: 11/09/2022]
Abstract
Switchable materials are increasingly considered for implementation in devices or multifunctional composites leading to a strong need in terms of reliable synthetic productions of well-defined objects. Here, an innovative and robust template-free continuous process was developed to synthesize nanoparticles of a switchable coordination polymer, including the use of supercritical CO2 , aiming at both quenching the particle growth and drying the powder. This all-in-one process offers a 12-fold size reduction in a few minutes while maintaining the switching properties of the selected spin crossover coordination polymer.
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Affiliation(s)
- Nathalie Daro
- CNRS-Université de Bordeaux- INP, ICMCB UMR 5026, F-33600, Pessac, France
| | - Tony Vaudel
- CNRS-Université de Bordeaux- INP, ICMCB UMR 5026, F-33600, Pessac, France
| | - Luc Afindouli
- CNRS-Université de Bordeaux- INP, ICMCB UMR 5026, F-33600, Pessac, France
| | - Samuel Marre
- CNRS-Université de Bordeaux- INP, ICMCB UMR 5026, F-33600, Pessac, France
| | - Cyril Aymonier
- CNRS-Université de Bordeaux- INP, ICMCB UMR 5026, F-33600, Pessac, France
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22
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Sirenko VY, Kucheriv OI, Rotaru A, Fritsky IO, Gural'skiy IA. Direct Synthesis of Spin‐Crossover Complexes: An Unexpectedly Revealed New Iron‐Triazolic Structure. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Valerii Y. Sirenko
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska St. 64 01601 Kyiv Ukraine
| | - Olesia I. Kucheriv
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska St. 64 01601 Kyiv Ukraine
- UkrOrgSyntez Ltd Chervonotkatska St. 67 02094 Kyiv Ukraine
| | - Aurelian Rotaru
- Faculty of Electrical Engineering and Computer Science and MANSiD Research Center Stefan cel Mare University Universității St. 13 720229 Suceava Romania
| | - Igor O. Fritsky
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska St. 64 01601 Kyiv Ukraine
- UkrOrgSyntez Ltd Chervonotkatska St. 67 02094 Kyiv Ukraine
| | - Il'ya A. Gural'skiy
- Department of Chemistry Taras Shevchenko National University of Kyiv Volodymyrska St. 64 01601 Kyiv Ukraine
- UkrOrgSyntez Ltd Chervonotkatska St. 67 02094 Kyiv Ukraine
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23
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Vinogradova KA, Andreeva AY, Pishchur DP, Bushuev MB. SPIN TRANSITION IN HETEROANION COMPLEXES
IN THE Fe2+-4-AMINO-1,2,4-TRIAZOLE–$$\text{NO}^{-}_3$$–$$\text{SO}^{2-}_4$$ SYSTEM. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620090048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Spin Crossover in New Iron(II) Coordination Compounds with Tris(pyrazol-1-yl)Methane. CRYSTALS 2020. [DOI: 10.3390/cryst10090843] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We review here new advances in the synthesis and investigation of iron(II) coordination compounds with tris(pyrazol-1-yl)methane and its derivatives as ligands. The complexes demonstrate thermally induced spin crossover accompanied by thermochromism. Factors that influence the nature and temperature of the spin crossover are discussed.
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25
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Resines-Urien E, Piñeiro-López L, Fernandez-Bartolome E, Gamonal A, Garcia-Hernandez M, Sánchez Costa J. Covalent post-synthetic modification of switchable iron-based coordination polymers by volatile organic compounds: a versatile strategy for selective sensor development. Dalton Trans 2020; 49:7315-7318. [PMID: 32469360 DOI: 10.1039/d0dt01533d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A covalent post-synthetic modification is applied in one of the most relevant polymers to obtain unprecedented switchable spin crossover (SCO) materials. We also demonstrate that this material can be used as a selective chemo-sensor for VOCs (particularly, formaldehyde) thanks to solid/vapor reactions occurring between the polymer and the corresponding vapor.
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Affiliation(s)
- Esther Resines-Urien
- IMDEA Nanociencia, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
| | - Lucía Piñeiro-López
- IMDEA Nanociencia, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
| | | | - Arturo Gamonal
- IMDEA Nanociencia, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
| | - Mar Garcia-Hernandez
- Instituto de Ciencia de Materiales de Madrid, CSIC, C/Sor Juana Inés de la Cruz, 3, Campus de Cantoblanco, 28049, Madrid, Spain
| | - José Sánchez Costa
- IMDEA Nanociencia, C/Faraday 9, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
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26
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Vinogradova KA, Pishchur DP, Komarov VY, Lavrenova LG, Bushuev MB. Cooperative spin transition in a 1D-polymeric complex [Fe(4-ethyl-1,2,4-triazole)3]SiF6·nH2O. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Pask CM, Greatorex S, Kulmaczewski R, Baldansuren A, McInnes EJL, Bamiduro F, Yamada M, Yoshinari N, Konno T, Halcrow MA. Elucidating the Structural Chemistry of a Hysteretic Iron(II) Spin-Crossover Compound From its Copper(II) and Zinc(II) Congeners. Chemistry 2020; 26:4833-4841. [PMID: 32017244 DOI: 10.1002/chem.202000101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Indexed: 11/12/2022]
Abstract
Annealing [FeL2 ][BF4 ]2 ⋅2 H2 O (L=2,6-bis-[5-methyl-1H-pyrazol-3-yl]pyridine) affords an anhydrous material, which undergoes a spin transition at T1/2 =205 K with a 65 K thermal hysteresis loop. This occurs through a sequence of phase changes, which were monitored by powder diffraction in an earlier study. [CuL2 ][BF4 ]2 ⋅2 H2 O and [ZnL2 ][BF4 ]2 ⋅2 H2 O are not perfectly isostructural but, unlike the iron compound, they undergo single-crystal-to-single-crystal dehydration upon annealing. All the annealed compounds initially adopt the same tetragonal phase but undergo a phase change near room temperature upon re-cooling. The low-temperature phase of [CuL2 ][BF4 ]2 involves ordering of its Jahn-Teller distortion, to a monoclinic lattice with three unique cation sites. The zinc compound adopts a different, triclinic low-temperature phase with significant twisting of its coordination sphere, which unexpectedly becomes more pronounced as the crystal is cooled. Synchrotron powder diffraction data confirm that the structural changes in the anhydrous zinc complex are reproduced in the high-spin iron compound, before the onset of spin-crossover. This will contribute to the wide hysteresis in the spin transition of the iron complex. EPR spectra of copper-doped [Fe0.97 Cu0.03 L2 ][BF4 ]2 imply its low-spin phase contains two distinct cation environments in a 2:1 ratio.
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Affiliation(s)
- Christopher M Pask
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Sam Greatorex
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Amgalanbaatar Baldansuren
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,current address: Chemistry and Chemical Biology, 120 Cogswell, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY, 12180, USA
| | - Eric J L McInnes
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Faith Bamiduro
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Mihoko Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan.,current address: Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.,Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
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28
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Boniolo M, Shylin SI, Chernev P, Cheah MH, Heizmann PA, Huang P, Salhi N, Hossain K, Thapper A, Lundberg M, Messinger J. Spin transition in a ferrous chloride complex supported by a pentapyridine ligand. Chem Commun (Camb) 2020; 56:2703-2706. [PMID: 32057045 DOI: 10.1039/c9cc09630b] [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
Ferrous chloride complexes [FeIILxCl] commonly attain a high-spin state independently of the supporting ligand(s) and temperature. Herein, we present the first report of a complete spin crossover with T1/2 = 80 K in [FeII(Py5OH)Cl]+ (Py5OH = pyridine-2,6-diylbis[di(pyridin-2-yl)methanol]). Both spin forms of the complex are analyzed by X-ray spectroscopy and DFT calculations.
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Affiliation(s)
- Manuel Boniolo
- Department of Chemistry -Ångström Laboratory, Uppsala University, PO Box 523, 75120 Uppsala, Sweden.
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29
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Feng M, Ruan ZY, Chen YC, Tong ML. Physical stimulus and chemical modulations of bistable molecular magnetic materials. Chem Commun (Camb) 2020; 56:13702-13718. [DOI: 10.1039/d0cc04202a] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this Feature Article, we summarize the recent progress made in modulating the multifaceted magnetic behaviour of single-molecule magnets (SMMs) and spin-crossover (SCO) materials based on chemical modifications and external stimuli.
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Affiliation(s)
- Min Feng
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ze-Yu Ruan
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Yan-Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
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30
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Kucheriv OI, Oliynyk VV, Zagorodnii VV, Launets VL, Penkivska OV, Fritsky IO, Gural'skiy IA. Tunable microwave absorption of switchable complexes operating near room temperature. RSC Adv 2020; 10:21621-21628. [PMID: 35518746 PMCID: PMC9054383 DOI: 10.1039/d0ra02236e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/08/2020] [Indexed: 12/30/2022] Open
Abstract
Materials that are able to switch microwave radiation are strongly desired for their potential applications in electronic devices. In this paper, we show the spin-dependant interaction of spin-crossover materials with microwave radiation, namely, the ability of coordination compounds [Fe(NH2trz)3]Br2 and [Fe(NH2trz)3](NO3)2 that undergo a cooperative spin transition between low-spin and high-spin states to operate as thermoswitchable microwave absorbers. The characteristics of the microwave reflection and transmission of these spin-crossover complexes were investigated at variable temperatures. The evolution of both the transmission and reflection spectra in the 26–37 GHz frequency band within the temperature range of spin crossover showed significant differences in the interaction of microwave radiation with the high-spin and low-spin forms of the compounds. The microwave transmission coefficient shows a notable decrease upon transition to the high-spin state, while the reflection coefficient can be both increased or decreased on the characteristic frequencies during the spin transition. The different microwave absorbing properties of the low-spin and high-spin forms are found to be associated with a notable microwave permittivity change upon spin crossover. The switchable microwave reflection/transmission correlates well with the transition characteristics found in the optical and differential scanning calorimetry measurements. These results widen the spectroscopic range in which spin-crossover materials can be applied and contribute to the creation of a preliminary database of the microwave absorbing properties of spin-crossover complexes. Iron(ii) spin-crossover complexes are shown to be effective microwave switches operating near room temprature.![]()
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Affiliation(s)
- Olesia I. Kucheriv
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Viktor V. Oliynyk
- Department of Radio Physics, Electronics and Computer Systems
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Volodymyr V. Zagorodnii
- Department of Radio Physics, Electronics and Computer Systems
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Vilen L. Launets
- Department of Radio Physics, Electronics and Computer Systems
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Olena V. Penkivska
- Department of Radio Physics, Electronics and Computer Systems
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Igor O. Fritsky
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
| | - Il'ya A. Gural'skiy
- Department of Chemistry
- Taras Shevchenko National University of Kyiv
- Kyiv 01601
- Ukraine
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31
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Villaman D, McMonagle CJ, Probert MR, Peña O, Moreno Y, Fuentealba M. Structural studies of a manganese(iii) complex with spin-crossover and thermochromic properties. CrystEngComm 2020. [DOI: 10.1039/c9ce01962f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A new MnIII complex exhibits a gradual spin crossover phenomenon with single crystal thermochromism. A comparative structural study was conducted using octahedral deviation parameters.
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Affiliation(s)
- David Villaman
- Pontificia Universidad Católica de Valparaíso
- Instituto de Química
- Laboratorio de Cristalografía
- Valparaíso
- Chile
| | - Charles J. McMonagle
- Chemistry
- School of Natural and Environmental Sciences
- Newcastle University
- Newcastle upon Tyne NE1 7RU
- UK
| | - Michael R. Probert
- Chemistry
- School of Natural and Environmental Sciences
- Newcastle University
- Newcastle upon Tyne NE1 7RU
- UK
| | - Octavio Peña
- Institut des Sciences Chimiques de Rennes
- UMR 6226
- Université de Rennes-1
- Rennes
- France
| | - Yanko Moreno
- Facultad de Ciencias Básicas
- Universidad Santo Tomás
- Viña del Mar
- Chile
| | - Mauricio Fuentealba
- Pontificia Universidad Católica de Valparaíso
- Instituto de Química
- Laboratorio de Cristalografía
- Valparaíso
- Chile
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32
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Ivanova AD, Korotaev EV, Komarov VY, Sheludyakova LA, Varnek VA, Lavrenova LG. Spin-crossover in iron( ii) coordination compounds with 2,6-bis(benzimidazol-2-yl)pyridine. NEW J CHEM 2020. [DOI: 10.1039/d0nj00474j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel iron(ii) bromide, nitrate and dicyanamide complexes with 2,6-bis(benzimidazol-2-yl)pyridine possessing high-temperature 1A1 ↔ 5T2 spin crossover were obtained.
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Affiliation(s)
- A. D. Ivanova
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
| | - E. V. Korotaev
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
| | - V. Yu. Komarov
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
- Novosibirsk National Research State University
- Novosibirsk
| | - L. A. Sheludyakova
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
| | - V. A. Varnek
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
| | - L. G. Lavrenova
- Institute of Inorganic Chemistry Siberian Division of RAS
- Novosibirsk
- Russia
- Novosibirsk National Research State University
- Novosibirsk
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33
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Shakirova O, Korotaev E, Evtushok D, Kuratieva N, Sheludyakova L, Shestopalov M, Lavrenova L. Spin-crossover in iron(II) complexes with tris(pyrazol-1-yl)methane and сluster anions [{W6X8}X6]2– (X = Cl, Br, I). J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Nekoud Y, Mezaoui D, Cosquer N. A novel iron (III) organic-inorganic hybrid with a thermochromic transition: Synthesis and structural characterisation of the dicystaminium dichloride aquapentachloridoferrate (III), monohydrate (C4H14N2S2)2[FeCl5(H2O)]Cl2*H2O. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Kokovkin VV, Mironov IV, Korotaev EV, Shayapov VR, Shakirova OG, Lavrenova LG. Studies on Sulfate Iron(II) Complex With Tris(pyrazol‐1‐yl)methane Exhibiting Spin Crossover in Aqueous Solutions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vasily V. Kokovkin
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Avenue, Novosibirsk 630090 Russia
- Analytical Chemistry DepartmentFaculty of Natural SciencesNovosibirsk National Research State University 2 Pirogova Str., Novosibirsk 630090 Russia
| | - Igor V. Mironov
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Avenue, Novosibirsk 630090 Russia
- Analytical Chemistry DepartmentFaculty of Natural SciencesNovosibirsk National Research State University 2 Pirogova Str., Novosibirsk 630090 Russia
| | - Evgenii V. Korotaev
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Avenue, Novosibirsk 630090 Russia
| | - Vladimir R. Shayapov
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Avenue, Novosibirsk 630090 Russia
| | - Olga G. Shakirova
- Komsomolsky-na-Amure State Technical University 27 Lenin Avenue, Komsomolsk-na-Amure 681013 Russia
| | - Ludmila G. Lavrenova
- Nikolaev Institute of Inorganic Chemistry SB RAS 3 Lavrentiev Avenue, Novosibirsk 630090 Russia
- Analytical Chemistry DepartmentFaculty of Natural SciencesNovosibirsk National Research State University 2 Pirogova Str., Novosibirsk 630090 Russia
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36
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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.
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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
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37
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Rodríguez-Jiménez S, Brooker S. Qualitative Guest Sensing via Iron(II) Triazole Complexes. Inorg Chem 2019; 58:8188-8197. [PMID: 31124665 DOI: 10.1021/acs.inorgchem.9b01006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The pyridazine-pyridine triazole-based Rat ligand, Lpydzpy [4-(4-methylphenyl)-3-(3-pyridazinyl)-5-(2-pyridinyl)-1,2,4-triazole], is potentially ditopic. Nevertheless, Lpydzpy is shown herein to exclusively form mononuclear iron(II) complexes, [FeII(Lpydzpy)2(NCE)2]·solvent, in the presence of coordinating NCE anions (E = S or Se). Specifically, a new family of 10 mononuclear complexes, in which Lpydzpy binds in a monotopic bidentate manner, has been made: two solvent-free complexes, [FeII(Lpydzpy)2(NCS)2] (1) and [FeII(Lpydzpy)2(NCSe)2] (2); six solvatomorphs, 1·4CH3CN, 2·4CH3CN, 1·2.25CH3CN, 2·3CH3CN, 2·tetrahydrofuran, and 2·CHCl3; and a pair of desolvated polymorphs, 1' and 2'. Seven of them are spin crossover-active, the exceptions being 1, 2, and 2'. This is confirmed by single-crystal X-ray diffraction (XRD) for 1, 2, 1·4CH3CN, and 2·4CH3CN and is consistent with variable-temperature optical microscopy observations on single crystals of 1·4CH3CN and 2·4CH3CN and on samples of 1' and 2'. Powder XRD, thermogravimetric analysis, and solid-state magnetometry reveal that desolvated 1' and 2' are capable of absorbing and desorbing a range of volatile guests: CH3CN in both cases and also tetrahydrofuran and CHCl3 in the case of 2'.
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Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
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38
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Lavrenova LG, Ivanova AD, Bogomyakov AS, Komarov VY, Sheludyakova LA. Magnetically Active 3d Metal Complexes with 3-Amino-4-Ethoxycarbonylpyrazole. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Dyukova I, Lavrenova L, Kuz'menko T, Komarov VY, Sukhikh T, Vorontsova E. Coordination compounds of Co(II) and Cu(II) halides with 2,4-dimethyl-1,2,4-triazolo[1,5-a]benzimidazole. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.10.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Dyukova II, Kuz’menko TA, Komarov VY, Sukhikh TS, Vorontsova EV, Lavrenova LG. Coordination Compounds of Cobalt(II), Nickel(II), and Copper(II) Halides with 2-Methyl-1,2,4-Triazolo[1,5-a]benzimidazole. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s107032841812014x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Wang D, Gardinier JR, Lindeman SV. Iron( ii) tetrafluoroborate complexes of new tetradentate C-scorpionates as catalysts for the oxidative cleavage of trans-stilbene with H 2O 2. Dalton Trans 2019; 48:14478-14489. [DOI: 10.1039/c9dt02829c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Iron(ii) complexes of two new tetradentate C-scorpionate ligands are characterized. Both catalyze stilbene cleavage using either H2O2 or a O2/photocatalyst oxidant.
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Affiliation(s)
- Denan Wang
- Department of Chemistry
- Marquette University
- Milwaukee
- USA
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42
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Senthil Kumar K, Bayeh Y, Gebretsadik T, Elemo F, Gebrezgiabher M, Thomas M, Ruben M. Spin-crossover in iron(ii)-Schiff base complexes. Dalton Trans 2019; 48:15321-15337. [DOI: 10.1039/c9dt02085c] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A collective overview of iron(ii)-Schiff base complexes, showing abrupt and hysteretic SCO suitable for device applications, and the structure–property relationships governing the SCO of the complexes in the solid-state is presented.
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Affiliation(s)
- Kuppusamy Senthil Kumar
- Institut de Physique et de Chimie des Matériaux-Université de Strasbourg23
- F-67034 Strasbourg
- France
| | - Yosef Bayeh
- Department of Industrial Chemistry
- Addis Ababa Science and Technology University
- Addis Ababa
- Ethiopia
| | - Tesfay Gebretsadik
- Department of Industrial Chemistry
- Addis Ababa Science and Technology University
- Addis Ababa
- Ethiopia
| | - Fikre Elemo
- Department of Industrial Chemistry
- Addis Ababa Science and Technology University
- Addis Ababa
- Ethiopia
| | - Mamo Gebrezgiabher
- Department of Industrial Chemistry
- Addis Ababa Science and Technology University
- Addis Ababa
- Ethiopia
| | - Madhu Thomas
- Department of Industrial Chemistry
- Addis Ababa Science and Technology University
- Addis Ababa
- Ethiopia
| | - Mario Ruben
- Institut de Physique et de Chimie des Matériaux-Université de Strasbourg23
- F-67034 Strasbourg
- France
- Institute of Nanotechnology
- Karlsruhe Institute of Technology
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43
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Rodríguez‐Jiménez S, Bondì L, Yang M, Garden AL, Brooker S. Predictable Electronic Tuning By Choice of Azine Substituent in Five Iron(II) Triazoles: Redox Properties and DFT Calculations. Chem Asian J 2018; 14:1158-1166. [PMID: 30550630 DOI: 10.1002/asia.201801537] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/13/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Santiago Rodríguez‐Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of Otago P.O. Box 56 Dunedin 9054 New Zealand
| | - Luca Bondì
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of Otago P.O. Box 56 Dunedin 9054 New Zealand
| | - Mingrui Yang
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of Otago P.O. Box 56 Dunedin 9054 New Zealand
| | - Anna L. Garden
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of Otago P.O. Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and NanotechnologyUniversity of Otago P.O. Box 56 Dunedin 9054 New Zealand
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44
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45
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Abrupt Spin Crossover Behavior in a Linear N1,N2-Triazole Bridged Trinuclear Fe(II) Complex. MAGNETOCHEMISTRY 2018. [DOI: 10.3390/magnetochemistry4030034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The synthesis, structures and magnetic properties of a new trinuclear spin crossover complex [FeII3(pyrtrz)6(TsO)6]·10H2O·2CH3OH (C2) and its analogue binuclear [FeII2(pyrtrz)5(SCN)4]·7H2O (C1), are reported here. These two compounds are synthesized based on the pyrrolyl functionalized Schiff base 1,2,4-triazole ligand 4-((1H-pyrrol-2-yl)methylene-amino)-4H-1,2,4-triazole (pyrtrz), which represent rare discrete multi-nuclear species, with µ2-N1,N2-triazole bridges linking the FeII centers. DC magnetic susceptibility measurements revealed an abrupt single-step spin crossover (SCO) behavior for compound 2 on the central FeII site and single-crystal X-ray diffraction (173 K) showed that this compound crystallizes in the monoclinic space group (P21/c), and multiple intramolecular interactions were found responsible for the abrupt transition. Compound 1 is a binuclear complex with thiocyanate as terminal ligands. This compound stays in high spin state over the whole temperature range and displays weak antiferromagnetic exchange coupling.
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46
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Yunusova S, Bolotin DS, Suslonov VV, Vovk MA, Tolstoy PM, Kukushkin VY. 3-Dialkylamino-1,2,4-triazoles via Zn II-Catalyzed Acyl Hydrazide-Dialkylcyanamide Coupling. ACS OMEGA 2018; 3:7224-7234. [PMID: 31458884 PMCID: PMC6644373 DOI: 10.1021/acsomega.8b01047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 06/15/2018] [Indexed: 05/08/2023]
Abstract
Zinc(II)-catalyzed (10 mol % ZnCl2) coupling of acyl hydrazides and dialkylcyanamides in ethanol leads to 3-dialkylamino-1,2,4-triazoles (76-99%; 17 examples). This reaction represents a novel, straightforward, and high-yielding approach to practically important 3-NR2-1,2,4-triazoles, which utilizes commercially available and/or easily generated substrates. Seventeen new 3-NR2-1,2,4-triazoles were characterized by HRESI+-MS and IR, 1H, and 13C{1H} NMR spectroscopies and five species additionally by single-crystal X-ray diffraction (XRD). The ZnII-catalyzed reaction proceeds via initial generation of the [Zn{RC(=O)NHNH2}3](ZnCl4) complexes (exemplified by isolation of the complex with R = Ph, 76%; characterized by HRESI+-MS, IR, CP-MAS TOSS 13C{1H} NMR, and XRD). Electronic effects of substituents at the acyl hydrazide moiety do not significantly affect the reaction rate and the yield of the target triazoles, whereas the steric hindrances reduce the reaction rate without affecting the yield of the heterocycles.
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Affiliation(s)
- Sevilya
N. Yunusova
- Institute
of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
| | - Dmitrii S. Bolotin
- Institute
of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
- E-mail: (D.S.B.)
| | - Vitalii V. Suslonov
- Center for X-ray Diffraction
Studies, Center for Magnetic Resonance, Saint Petersburg
State University, Universitetskii
Pr., 26, Saint Petersburg 199034, Russian Federation
| | - Mikhail A. Vovk
- Center for X-ray Diffraction
Studies, Center for Magnetic Resonance, Saint Petersburg
State University, Universitetskii
Pr., 26, Saint Petersburg 199034, Russian Federation
| | - Peter M. Tolstoy
- Center for X-ray Diffraction
Studies, Center for Magnetic Resonance, Saint Petersburg
State University, Universitetskii
Pr., 26, Saint Petersburg 199034, Russian Federation
| | - Vadim Yu. Kukushkin
- Institute
of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, Saint Petersburg 199034, Russian Federation
- E-mail: (V.Y.K.)
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47
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Bushuev MB, Krivopalov VP, Nikolaenkova EB, Vinogradova KA, Gatilov YV. Hysteretic spin crossover in isomeric iron(ii) complexes. Dalton Trans 2018; 47:9585-9591. [PMID: 29978158 DOI: 10.1039/c8dt02223b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two mononuclear iron(ii) complexes with isomeric N,N,N-tridentate pyrimidine-based ligands were synthesized. Both complexes show reproducible hysteretic spin crossover. Low spin state to high spin state switching is cooperative due to autocatalysis.
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Affiliation(s)
- Mark B Bushuev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
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48
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Rodríguez-Jiménez S, Barltrop AS, White NG, Feltham HLC, Brooker S. Solvent Polarity Predictably Tunes Spin Crossover T1/2 in Isomeric Iron(II) Pyrimidine Triazoles. Inorg Chem 2018; 57:6266-6282. [PMID: 29767514 DOI: 10.1021/acs.inorgchem.8b00128] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Alexis S. Barltrop
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Nicholas G. White
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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49
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Synthesis, crystal structures and high-temperature spin-crossover of new inclusion compounds of iron(II) tris (pyrazol-1-yl)methane complex with p -sulfonatocalix[4]arene. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Abstract
Non-isothermal kinetic studies of spin crossover allow establishing a reaction model of hysteretic spin state switching.
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Affiliation(s)
- Mark B Bushuev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., Novosibirsk, 630090, Russia.
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