1
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Abstract
In this work we present a detailed study showing the importance of the Kubelka-Munk (KM) correction in the analysis of diffuse reflectivity measurements to characterize spin crossover compounds. Combined reflectance and magnetic susceptibility measurements are carried out as a function of temperature or time to highlight the conditions under which this correction becomes critical. In particular, we investigate the influence of the color contrast between the two spin states on the reflectance measurements. Interestingly, the samples’ contrast seems to play an important role on the spin-like domain structure as suggested by the symmetry of the FORC diagrams. These latest results are discussed within the framework of Classical Preisach model (CPM).
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2
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Márquez Costa JP, Legrand V, Fréour S, Jacquemin F. Towards the Prediction of Sandwich Composites Durability in Severe Condition of Temperature: A New Numerical Model Describing the Influence of Material Water Content during a Fire Scenario. MATERIALS 2020; 13:ma13235420. [PMID: 33260519 PMCID: PMC7731082 DOI: 10.3390/ma13235420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/04/2022]
Abstract
An advanced fire thermal model was developed to predict the evolution of the temperature and decomposition gradient across a sandwich composite structure when exposed to high temperatures (fire). This model allows the prediction of a large numbers of parameters, such as thermal expansion, gas mass storage, porosity, permeability, density, and internal pressure. The highlight of this model is that we consider, in the sandwich constituents (core and skins), additional parameters, such as changing volume porosities, other coupled constituents (as infused resin in the balsa core), and what make the main originality of the present approach: moisture content (free and bounded water). The time dependence of many parameters, i.e., among others, the combustion advancing front and mechanical properties, can be predicted in a large number of material and fire scenarios. The proposed approach was validated in the case of sandwich panels, with glass/polyester or glass/vinyl ester skins and balsa core, exposed to high temperatures up to 750 °C. The influence of water on the thermal and mechanical responses is also highlighted.
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3
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Książek M, Weselski M, Dreczko A, Maliuzhenko V, Kaźmierczak M, Tołoczko A, Kusz J, Bronisz R. Two ways of spin crossover in an iron(ii) coordination polymer associated with conformational changes of a bridging ligand. Dalton Trans 2020; 49:9811-9819. [DOI: 10.1039/d0dt01696a] [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
Structural phase transition in [Fe(bbtre)3](ClO4)2·2CH3CN (bbtre = 1,4-di(1-ethyl-1,2,3-triazol-5-yl)butane) plays the role of a switch, allowing spin crossover to be carried out in two ways.
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Affiliation(s)
- Maria Książek
- Institute of Physics
- University of Silesia
- 41-500 Chorzów
- Poland
| | - Marek Weselski
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | | | | | | | | | - Joachim Kusz
- Institute of Physics
- University of Silesia
- 41-500 Chorzów
- Poland
| | - Robert Bronisz
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
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4
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Durability of Composite Materials under Severe Temperature Conditions: Influence of Moisture Content and Prediction of Thermo-Mechanical Properties During a Fire. JOURNAL OF COMPOSITES SCIENCE 2019. [DOI: 10.3390/jcs3020055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The main objective of the present study was to develop a fire thermal model able to predict the evolution of the temperature and decomposition gradient across a laminated composite structure when exposed to fire. The thermal response of composite laminate made of organic polymer matrix was investigated under severe temperature conditions as samples were exposed to high temperatures up to 750 °C. The highlight is that a behavior law for water is included in our thermo-mechanical model to estimate effects due to a moisture content field on the thermal response of composite laminates. In particular, porosity and gas pressure are strongly influenced by the presence of water in the material and modify the thermal behavior accordingly. This enabled us to propose a new approach that can be used for the prediction of hygro-thermo-chemico-mechanical post-combustion properties in a very large number of material and fire scenarios.
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5
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Evidence of Photo-Thermal Effects on the First-Order Thermo-Induced Spin Transition of [{Fe(NCSe)(py)2}2(m-bpypz)] Spin-Crossover Material. MAGNETOCHEMISTRY 2019. [DOI: 10.3390/magnetochemistry5020021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We have investigated by means of optical microscopy and magnetic measurements the first-order thermal spin transition of the [{Fe(NCSe)(py)2}2(m-bpypz)] spin-crossover compound under various shining intensities, far from the light-induced spin-state trapping region. We found evidence of photo-heating effects on the thermally-induced hysteretic response of this spin-crossover material, thus causing the shift of the thermal hysteresis to lower temperature regions. The experimental results are discussed in terms of the apparent crystal temperature and are analyzed theoretically using two evolution equations of motion, written on the high-spin (HS) fraction and heat balance between the crystal and the thermal bath. A very good qualitative agreement was found between experiment and theory in the stationary regime, explaining the experimental observations well and identifying the key factors governing these photo-thermal effects.
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6
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Książek M, Weselski M, Ilczyszyn M, Kusz J, Bronisz R. Sliding Polymeric Layers and Anion Displacement Coupled with Spin Crossover in Two-Dimensional Networks of [Fe(hbtz) 2 (CH 3 CN) 2 ](BF 4 ) 2. Chemistry 2019; 25:2250-2261. [PMID: 30637819 DOI: 10.1002/chem.201804721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 11/14/2018] [Indexed: 11/08/2022]
Abstract
The abrupt high spin (HS)→low spin (LS) transition (T↓ 1/2 =136 K) in [Fe(hbtz)2 (CH3 CN)2 ](BF4 )2 (hbtz=1,6-di(tetrazol-2-yl)hexane) is finished at 100 K and further thermal treatment influences the spin crossover. Subsequent heating involves a change of the spin state in the same way (T↑ 1/2 =136 K) on cooling. In contrast, cooling below 100 K triggers different behavior and T↑ 1/2 is shifted to 170 K. The extraordinary structural changes that occurred below 100 K are responsible for the observed diversity of properties. A unique feature of the low-temperature phase is the rebuilding of the anion network expressed by a shift of anions inside the polymeric layer at a distance of 1.2 Å as well as the relative shift of neighboring layers at over 4 Å. These structural alterations, connected with a phase transition, become the origin of the strain, which in most cases causes crystal cleaving. In a sample composed from crystals crushed as a result of the phase transition or as a result of mechanical crumbling, the hysteresis loop vanishes; however, annealing the sample allows to its partial restoration. A replacement of acetonitrile by other nitriles leads to preservation of the polymeric structure and spin crossover, but no phase transition follows.
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Affiliation(s)
- Maria Książek
- Institute of Physics, University of Silesia, 40-007, Katowice, Poland
| | - Marek Weselski
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383, Wrocław, Poland
| | - Maria Ilczyszyn
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383, Wrocław, Poland
| | - Joachim Kusz
- Institute of Physics, University of Silesia, 40-007, Katowice, Poland
| | - Robert Bronisz
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383, Wrocław, Poland
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7
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Bridonneau N, Quatremare P, von Bardeleben HJ, Cantin J, Pillet S, Bendeif E, Marvaud V. Direct Evidence of a Photoinduced Electron Transfer in Diluted “Molybdenum‐Copper” Molecular Compounds. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700983] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nathalie Bridonneau
- IPCM‐CNRS‐UMR‐8232 UPMC‐Univ. Paris 6, cc 229 4 place Jussieu 75252 Paris Cedex 05 France
| | - Pierre Quatremare
- IPCM‐CNRS‐UMR‐8232 UPMC‐Univ. Paris 6, cc 229 4 place Jussieu 75252 Paris Cedex 05 France
| | | | - Jean‐Louis Cantin
- INSP‐CNRS‐UMR‐7588 UPMC‐Univ. Paris 6 4 place Jussieu 75252 Paris Cedex 05 France
| | | | | | - Valérie Marvaud
- IPCM‐CNRS‐UMR‐8232 UPMC‐Univ. Paris 6, cc 229 4 place Jussieu 75252 Paris Cedex 05 France
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8
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Speed S, Pointillart F, Mulatier JC, Guy L, Golhen S, Cador O, Le Guennic B, Riobé F, Maury O, Ouahab L. Photophysical and Magnetic Properties in Complexes Containing 3d/4f Elements and Chiral Phenanthroline-Based Helicate-Like Ligands. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601501] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Saskia Speed
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
| | - Fabrice Pointillart
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
| | - Jean-Christophe Mulatier
- Univ Lyon; ENS de Lyon; Université Claude Bernard Lyon 1; CNRS UMR 5182; Laboratoire de Chimie; 69342 Lyon France
| | - Laure Guy
- Univ Lyon; ENS de Lyon; Université Claude Bernard Lyon 1; CNRS UMR 5182; Laboratoire de Chimie; 69342 Lyon France
| | - Stéphane Golhen
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
| | - Olivier Cador
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
| | - François Riobé
- Univ Lyon; ENS de Lyon; Université Claude Bernard Lyon 1; CNRS UMR 5182; Laboratoire de Chimie; 69342 Lyon France
| | - Olivier Maury
- Univ Lyon; ENS de Lyon; Université Claude Bernard Lyon 1; CNRS UMR 5182; Laboratoire de Chimie; 69342 Lyon France
| | - Lahcène Ouahab
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes 1; 263 Avenue du Général Leclerc 35042 Rennes Cedex France
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9
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Weselski M, Książek M, Kusz J, Białońska A, Paliwoda D, Hanfland M, Rudolf MF, Ciunik Z, Bronisz R. Evidence of Ligand Elasticity Occurring in Temperature‐, Light‐, and Pressure‐Induced Spin Crossover in 1D Coordination Polymers [Fe(3ditz)
3
]X
2
(X = ClO
4
–
, BF
4
–
). Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601399] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marek Weselski
- Faculty of Chemistry University of Wrocław F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Maria Książek
- Institute of Physics University of Silesia Uniwersytecka 4 40‐007 Katowice Poland
| | - Joachim Kusz
- Institute of Physics University of Silesia Uniwersytecka 4 40‐007 Katowice Poland
| | - Agata Białońska
- Faculty of Chemistry University of Wrocław F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Damian Paliwoda
- ESRF – The European Synchrotron CS40220 38043 Grenoble Cedex 9 France
| | - Michael Hanfland
- ESRF – The European Synchrotron CS40220 38043 Grenoble Cedex 9 France
| | - Mikołaj F. Rudolf
- Faculty of Chemistry University of Wrocław F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Zbigniew Ciunik
- Faculty of Chemistry University of Wrocław F. Joliot‐Curie 14 50‐383 Wrocław Poland
| | - Robert Bronisz
- Faculty of Chemistry University of Wrocław F. Joliot‐Curie 14 50‐383 Wrocław Poland
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10
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Wei RM, Kong M, Cao F, Li J, Pu TC, Yang L, Zhang XL, Song Y. Water induced spin-crossover behaviour and magneto-structural correlation in octacyanotungstate(iv)-based iron(ii) complexes. Dalton Trans 2016; 45:18643-18652. [PMID: 27827477 DOI: 10.1039/c6dt03421g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The SCO is mainly tuned by the octahedral distortion of the [FeN6] core caused by intermolecular hydrogen bonds, and there is an exact correlation between SCO behavior and the amount of lattice water molecules existing in the crystal.
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Affiliation(s)
- Rong-Min Wei
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Ming Kong
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Fan Cao
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jing Li
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Tian-Cheng Pu
- Department of Chemical and Biomolecular Engineering
- John Hopkins University
- Baltimore
- USA
| | - Li Yang
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Xiu-Ling Zhang
- Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong
- Dezhou University
- Dezhou 253023
- China
| | - You Song
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Advanced Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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11
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Tafili-Kryeziu M, Caneschi A, Fittipaldi M, Spina G, Lantieri M, Weil M, Hasegawa M, Linert W. Synthesis and characterization of a family of Fe(II) tetrazole complexes [Fe(C6mtz)6]X2(X = BF4ˉ, ClO4ˉ, PF6ˉ). J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1077951] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Myrvete Tafili-Kryeziu
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
| | - Andrea Caneschi
- LAMM, Dipartimento di Chimica & UdR INSTM, Università di Firenze, Sesto Fiorentino (Fi), Italy
| | - Maria Fittipaldi
- LAMM, Dipartimento di Fisica ed Astronomia & UdR INSTM, Università di Firenze, Sesto Fiorentino (Fi), Italy
| | - Gabriele Spina
- LAMM, Dipartimento di Fisica ed Astronomia & UdR INSTM, Università di Firenze, Sesto Fiorentino (Fi), Italy
| | - Marco Lantieri
- Istituto dei Sistemi Complessi, CNR, Sesto Fiorentino (Fi), Italy
| | - Matthias Weil
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | - Miki Hasegawa
- College of Science and Engineering, Aoyama Gakuin University, Sagamihara, Japan
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
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12
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Shatruk M, Phan H, Chrisostomo BA, Suleimenova A. Symmetry-breaking structural phase transitions in spin crossover complexes. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.018] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Wu XR, Shi HY, Wei RJ, Li J, Zheng LS, Tao J. Coligand and Solvent Effects on the Architectures and Spin-Crossover Properties of (4,4)-Connected Iron(II) Coordination Polymers. Inorg Chem 2015; 54:3773-80. [DOI: 10.1021/ic5029542] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xue-Ru Wu
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Hai-Yan Shi
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Rong-Jia Wei
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Jia Li
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Lan-Sun Zheng
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Jun Tao
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
College of Chemistry and Chemical Engineering and ‡Collaborative Innovation Center
of Chemistry for Energy Materials, Xiamen University, Xiamen 361005, People’s Republic of China
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14
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Delgado T, Tissot A, Besnard C, Guénée L, Pattison P, Hauser A. Structural Investigation of the High Spin→Low Spin Relaxation Dynamics of the Porous Coordination Network [Fe(pz)Pt(CN)4]⋅2.6 H2O. Chemistry 2015; 21:3664-70. [DOI: 10.1002/chem.201405405] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 11/06/2022]
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15
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Guionneau P. Crystallography and spin-crossover. A view of breathing materials. Dalton Trans 2014; 43:382-93. [DOI: 10.1039/c3dt52520a] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Gómez V, Lillo V, Escudero-Adán EC, Martin E, Galán-Mascarós JR. Aqueous synthesis of sulfonate-functionalized 1,2,4-triazole ligands and their 2D Cd2+ coordination networks: crystal structure and photoluminescent properties. Dalton Trans 2013; 42:6374-80. [DOI: 10.1039/c3dt33066d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Kaszub W, Buron‐Le Cointe M, Lorenc M, Boillot M, Servol M, Tissot A, Guérin L, Cailleau H, Collet E. Spin‐State Photoswitching Dynamics of the [(TPA)Fe(TCC)]SbF
6
Complex. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201083] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wawrzyniec Kaszub
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
| | - Marylise Buron‐Le Cointe
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
| | - Maciej Lorenc
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
| | - Marie‐Laure Boillot
- Institut de Chimie Moléculaire et Matériaux d'Orsay, UMR‐CNRS 8182, University Paris Sud 11, 91405 Orsay Cedex, France
| | - Marina Servol
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
| | - Antoine Tissot
- Institut de Chimie Moléculaire et Matériaux d'Orsay, UMR‐CNRS 8182, University Paris Sud 11, 91405 Orsay Cedex, France
| | - Laurent Guérin
- European Synchrotron Radiation Facility, 38043 Grenoble Cedex, France
| | - Hervé Cailleau
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
| | - Eric Collet
- Institut de Physique de Rennes, UMR 6251UR1‐CNRS, Campus de Beaulieu, University Rennes 1, 35042 Rennes Cedex, France, Fax: +33‐2‐23236532, http://blogperso.univ‐rennes1.fr/eric.collet/
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18
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Sheu C, Chen S, Lee G, Liu Y, Wen Y, Lee J, Chuang Y, Wang Y. Structure and Magnetism of the Iron(III) Spin‐Crossover Complex [Fe
III
{
N
‐ethyl‐
N
‐(2‐aminoethyl)salicylaldiminate}
2
]ClO
4. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chou‐Fu Sheu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
| | - Szu‐Miao Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
| | - Gene‐Hsiang Lee
- Instrumentation Center, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yi‐Hung Liu
- Instrumentation Center, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yuh‐Sheng Wen
- Institute of Chemistry, Academia Sinica, 128 Academia Road Sec. 2, Nankang, Taipei 11529, Taiwan
| | - Jey‐Jau Lee
- National Synchrotron Radiation Research Center, Hsin Chu, Taiwan
| | - Yu‐Chun Chuang
- National Synchrotron Radiation Research Center, Hsin Chu, Taiwan
| | - Yu Wang
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan, Fax: +886‐2‐23638377, http://www.ntu.edu.tw/
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19
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Białońska A, Bronisz R. Role of Fe-N-C geometry flip-flop in bistability in Fe(tetrazol-2-yl)4(C2H5CN)2-type core based coordination network. Inorg Chem 2012; 51:12630-7. [PMID: 23150893 DOI: 10.1021/ic300880w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Fe(ebtz)(2)(C(2)H(5)CN)(2)](ClO(4))(2) was prepared in the reaction of 1,2-di(tetrazol-2-yl)ethane (ebtz) with Fe(ClO(4))(2)·6H(2)O in propionitrile. The compound crystallizes as a one-dimensional (1D) network, where bridging of neighboring iron(II) ions by two ebtz ligand molecules results in formation of a [Fe(ebtz)(2)](∞) polymeric skeleton. The 1D chains are assembled into supramolecular layers with axially coordinated nitrile molecules directed outward. The complex in the high spin (HS) form reveals a very rare feature, namely, a bent geometry of the Fe-N-C(propionitrile) fragment (149.1(3)° at 250 K). The HS to low spin (LS) HS→LS transition triggers reorientation of the propionitrile molecule resulting in accommodation of a typical linear geometry of the Fe-N-C(nitrile) fragment. The switching of the propionitrile molecule orientation in relation to the coordination octahedron is associated with increase of the distance between the supramolecular layers. When the crystal is in the LS phase, raising the temperature does not cause reduction of the distance between supramolecular layers, which contributes to further stabilization of the more linear geometry of Fe-N-C(C(2)H(5)) and the LS form of the complex. Thus, a combination of Fe-N-C(C(2)H(5)) geometry lability and lattice effects contributes to the appearance of hysteretic behavior (T(1/2)(↓) ≈ 112 K, T(1/2)(↑) ≈ 141 K).
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Affiliation(s)
- Agata Białońska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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Chuang YC, Liu CT, Sheu CF, Ho WL, Lee GH, Wang CC, Wang Y. New Iron(II) Spin Crossover Coordination Polymers [Fe(μ-atrz)3]X2·2H2O (X = ClO4¯, BF4¯) and [Fe(μ-atrz)(μ-pyz)(NCS)2]·4H2O with an Interesting Solvent Effect. Inorg Chem 2012; 51:4663-71. [DOI: 10.1021/ic202626c] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Chun Chuang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Chi-Tsun Liu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Chou-Fu Sheu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Wei-Lun Ho
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, College
of Science, National Taiwan University,
Taipei, Taiwan
| | - Chih-Cheh Wang
- Department
of Chemistry, Soochow University, Taipei,
Taiwan
| | - Yu Wang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
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Svendsen H, Jørgensen MRV, Overgaard J, Chen YS, Chastanet G, Létard JF, Kato K, Takata M, Iversen BB. Analysis of the Photomagnetic Properties of Cyano-Bridged Heterobimetallic Complexes by X-Ray Diffraction. Inorg Chem 2011; 50:10974-84. [DOI: 10.1021/ic2015258] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Helle Svendsen
- Centre for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, DK-8000 Århus C, Denmark
| | - Mads Ry Vogel Jørgensen
- Centre for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, DK-8000 Århus C, Denmark
| | - Jacob Overgaard
- Centre for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, DK-8000 Århus C, Denmark
| | - Yu-Sheng Chen
- ChemMatCARS beamline, The University of Chicago, Advanced Photon Source, Argonne, Illinois 60439, United States
| | - Guillaume Chastanet
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac, F-33608, France
| | - Jean-François Létard
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac, F-33608, France
| | - Kenichi Kato
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Masaki Takata
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Bo B. Iversen
- Centre for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, DK-8000 Århus C, Denmark
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Bousseksou A, Molnár G, Salmon L, Nicolazzi W. Molecular spin crossover phenomenon: recent achievements and prospects. Chem Soc Rev 2011; 40:3313-35. [PMID: 21544283 DOI: 10.1039/c1cs15042a] [Citation(s) in RCA: 919] [Impact Index Per Article: 70.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently we assisted a strong renewed interest in the fascinating field of molecular spin crossover complexes by (1) the emergence of nanosized spin crossover materials through direct synthesis of coordination nanoparticles and nanopatterned thin films as well as by (2) the use of novel sophisticated high spatial and temporal resolution experimental techniques and theoretical approaches for the study of spatiotemporal phenomena in cooperative spin crossover systems. Besides generating new fundamental knowledge on size-reduction effects and the dynamics of the spin crossover phenomenon, this research aims also at the development of practical applications such as sensor, display, information storage and nanophotonic devices. In this critical review, we discuss recent work in the field of molecule-based spin crossover materials with a special focus on these emerging issues, including chemical synthesis, physical properties and theoretical aspects as well (223 references).
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Affiliation(s)
- Azzedine Bousseksou
- Laboratoire de Chimie de Coordination, CNRS UPR-8241 and Université de Toulouse, UPS, INP, F-31077 Toulouse, France.
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Svendsen H, Overgaard J, Chen YS, Iversen BB. A photo-induced excited state structure of a hetero-bimetallic ionic pair complex, Nd(DMA)4(H2O)4Fe(CN)6·3H2O, analyzed by single crystal X-ray diffraction. Chem Commun (Camb) 2011; 47:9486-8. [DOI: 10.1039/c1cc12626a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Varret F, Slimani A, Boukheddaden K, Chong C, Mishra H, Collet E, Haasnoot J, Pillet S. The propagation of the thermal spin transition of [Fe(btr)2(NCS)2]·H2O single crystals, observed by optical microscopy. NEW J CHEM 2011. [DOI: 10.1039/c1nj20332k] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Svendsen H, Overgaard J, Chevallier M, Collet E, Chen YS, Jensen F, Iversen B. Photomagnetic Switching of Heterometallic Complexes [M(dmf)4(H2O)3(μ-CN)Fe(CN)5]⋅H2O (M=Nd, La, Gd, Y) Analyzed by Single-Crystal X-ray Diffraction and Ab Initio Theory. Chemistry 2010; 16:7215-23. [DOI: 10.1002/chem.200902997] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Białońska A, Bronisz R. High Spin and Spin-Crossover Two-Dimensional Coordination Polymers Containing FeII(tetrazol-2-yl)4(solv)2 (solv = Ethanol, Acetonitrile) Cores Linked by Flexible/Elastic Spacers. Inorg Chem 2010; 49:4534-42. [DOI: 10.1021/ic9024603] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Agata Białońska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Robert Bronisz
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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Shih CH, Sheu CF, Kato K, Sugimoto K, Kim J, Wang Y, Takata M. The photo-induced commensurate modulated structure in site-selective spin crossover complex trans-[Fe(abpt)2(NCS)2]. Dalton Trans 2010; 39:9794-800. [DOI: 10.1039/c0dt00470g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Govor E, Lysenko A, Rusanov E, Chernega A, Krautscheid H, Domasevitch K. Anion Tuning of Cu(II)/4,4′-Bi-1,2,4-Triazole Coordination Polymers. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.200900121] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Iron(II) complexes of 2,6-di(pyrazol-1-yl)pyridines—A versatile system for spin-crossover research. Coord Chem Rev 2009. [DOI: 10.1016/j.ccr.2009.07.009] [Citation(s) in RCA: 284] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Svendsen H, Overgaard J, Chevallier M, Collet E, Iversen B. Photomagnetic Switching of the Complex [Nd(dmf)4(H2O)3(μ-CN)Fe(CN)5]⋅H2O Analyzed by Single-Crystal X-Ray Diffraction. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805997] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Svendsen H, Overgaard J, Chevallier M, Collet E, Iversen B. Photomagnetic Switching of the Complex [Nd(dmf)4(H2O)3(μ-CN)Fe(CN)5]⋅H2O Analyzed by Single-Crystal X-Ray Diffraction. Angew Chem Int Ed Engl 2009; 48:2780-3. [DOI: 10.1002/anie.200805997] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sheu CF, Chen K, Chen SM, Wen YS, Lee GH, Chen JM, Lee JF, Cheng BM, Sheu HS, Yasuda N, Ozawa Y, Toriumi K, Wang Y. Structure and Electronic Configuration of an Iron(II) Complex in a LIESST State: A Pump and Probe Method. Chemistry 2009; 15:2384-93. [DOI: 10.1002/chem.200802279] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sheu CF, Chen SM, Wang SC, Lee GH, Liu YH, Wang Y. The commensurate modulated structure of the metastable state in spin crossover complex [Fe(abpt)2(NCS)2]. Chem Commun (Camb) 2009:7512-4. [DOI: 10.1039/b910378c] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mishra V, Mukherjee R, Linares J, Balde C, Desplanches C, Létard JF, Collet E, Toupet L, Castro M, Varret F. Temperature-Dependent Interactions and Disorder in the Spin-Transition Compound [FeII(L)2][ClO4]2·C7H8 Through Structural, Calorimetric, Magnetic, Photomagnetic, and Diffuse Reflectance Investigations. Inorg Chem 2008; 47:7577-87. [DOI: 10.1021/ic8002977] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vibha Mishra
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Rabindranath Mukherjee
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Jorge Linares
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Chérif Balde
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Cédric Desplanches
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Jean-François Létard
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Eric Collet
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Loic Toupet
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Miguel Castro
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - François Varret
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
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Legrand V, Pillet S, Carbonera C, Souhassou M, Létard JF, Guionneau P, Lecomte C. Optical, Magnetic and Structural Properties of the Spin-Crossover Complex [Fe(btr)2(NCS)2]·H2O in the Light-Induced and Thermally Quenched Metastable States. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700872] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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