1
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Sun YC, Chen FL, Wang KJ, Zhao Y, Wei HY, Wang XY. Hysteretic Spin Crossover with High Transition Temperatures in Two Cobalt(II) Complexes. Inorg Chem 2023; 62:14863-14872. [PMID: 37676750 DOI: 10.1021/acs.inorgchem.3c01188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Cooperative spin crossover transitions with thermal hysteresis loops are rarely observed in cobalt(II) complexes. Herein, two new mononuclear cobalt(II) complexes with hysteretic spin crossover at relatively high temperatures (from 320 to 400 K), namely, [Co(terpy-CH2OH)2]·X2 (terpy-CH2OH = 4'-(hydroxymethyl)-2,2';6',2″-terpyridine, X = SCN-(1) and SeCN- (2)), have been synthesized and characterized structurally and magnetically. Both compounds are mononuclear CoII complexes with two chelating terpy-CH2OH ligands. Magnetic measurements revealed the existence of the hysteretic SCO transitions for both complexes. For compound 1, a one-step transition with T1/2↑= 334.5 K was observed upon heating, while a two-step transition is observed upon cooling with T1/2↓(1) = 329.3 K and T1/2↓(2) = 324.1 K (at a temperature sweep rate of 5 K/min). As for compound 2, a hysteresis loop with a width of 5 K (T1/2↓ = 391.6 K and T1/2↑ = 396.6 K, at a sweep rate of 5 K/min) can be observed. Thanks to the absence of the crystallized lattice solvents, their single crystals are stable enough at high temperatures for the structure determination at both spin states, which reveals that the hysteretic SCO transitions in both complexes originate from the crystallographic phase transitions involving a thermally induced order-disorder transition of the dangling -CH2OH groups in the ligand. This work shows that the modification of the terpy ligand has an important effect on the magnetic properties of the resulting cobalt(II) complexes.
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Affiliation(s)
- Yu-Chen Sun
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Feng-Li Chen
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kang-Jie Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hai-Yan Wei
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xin-Yi Wang
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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2
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Li G, Stefanczyk O, Kumar K, Mineo Y, Nakabayashi K, Ohkoshi SI. Low-Frequency Sub-Terahertz Absorption in Hg II -XCN-Fe II (X=S, Se) Coordination Polymers. Angew Chem Int Ed Engl 2023; 62:e202214673. [PMID: 36522797 DOI: 10.1002/anie.202214673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Self-assembly FeII complexes of phenazine (Phen), quinoxaline (Qxn), and 4,4'-trimethylenedipyridine (Tmp) with tetrahedral building blocks of [HgII (XCN)4 ]2- (X=S or Se) formed six new high-dimensional frameworks with the general formula of [Fe(L)m ][Hg(XCN)4 ]⋅solvents (L=Phen, m/X=2/S, 1; L=Qxn, m/X=2/S, 2; L=Qxn, m/X=1/S, 3; L=Qxn, m/X=1/Se, 3-Se; L=Tmp, m/X=1/S, 4; and L=Tmp, m/X=1/Se, 4-Se). 1, 3, and 3-Se show an intense sub-terahertz (sub-THz) absorbance of around 0.60 THz due to vibrations of the solvent molecules coordinated to the FeII ions and crystallization organic molecules. In addition, crystals of 1, 4, and 4-Se display low-frequency Raman scattering with exceptionally low values of 0.44, 0.51, and 0.53 THz, respectively. These results indicate that heavy metal FeII -HgII systems are promising platforms to construct sub-THz absorbers.
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Affiliation(s)
- Guanping Li
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Olaf Stefanczyk
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kunal Kumar
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yuuki Mineo
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Koji Nakabayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shin-Ichi Ohkoshi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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3
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Javed MK, Sulaiman A, Yamashita M, Li ZY. Shedding light on bifunctional luminescent spin crossover materials. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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4
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Kumar B, Paul A, Mondal DJ, Paliwal P, Konar S. Spin-State Modulation in Fe II -Based Hofmann-Type Coordination Polymers: From Molecules to Materials. CHEM REC 2022; 22:e202200135. [PMID: 35815939 DOI: 10.1002/tcr.202200135] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/21/2022] [Indexed: 11/05/2022]
Abstract
Spin crossover complexes that reversibly interconvert between two stable states imitate a binary state of 0 and 1, delivering a promising possibility to address the data processing concept in smart materials. Thus, a comprehensive understanding of the modulation of magnetic transition between high spin and low spin and the factors responsible for stabilizing the spin states is an essential theme in modern materials design. In this context, the present review attempts to provide a concise outline of the design strategy employed at the molecular level for fine-tuning the spin-state switching in FeII -based Hofmann-type coordination polymers and their effects on the optical and magnetic response. In addition, development towards the nanoscale architectures of HCPs, i. e., in terms of nanoparticles and thin films, are emphasized to bridge the gap between the laboratory and reality.
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Affiliation(s)
- Bhart Kumar
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Abhik Paul
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Dibya Jyoti Mondal
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Piyush Paliwal
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
| | - Sanjit Konar
- Molecular Magnetism Lab, Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhopal, Madhya Pradesh, 462066, India
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5
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Gkolfi P, Tsivaka D, Tsougos I, Vassiou K, Malina O, Polaskova M, Polyzou CD, Chasapis CT, Tangoulis V. A facile approach to prepare silica hybrid, spin-crossover water-soluble nanoparticles as potential candidates for thermally responsive MRI agents. Dalton Trans 2021; 50:13227-13231. [PMID: 34546269 DOI: 10.1039/d1dt02479e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reverse micelle method was used for the synthesis of water-soluble silica hybrid, spin-crossover (SCO) nanoparticles (NPs). MRI experiments provided temperature dependent T2 values, indicating their potential use as smart MRI agents, while lyophilization of NP dispersions in water yielded powders with a preserved but modified thermal hysteretic magnetic profile.
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Affiliation(s)
- Patroula Gkolfi
- Department of Chemistry, Laboratory of Inorganic Chemistry, University of Patras, 26504, Patras, Greece.
| | - Dimitra Tsivaka
- Department of Medical Physics, University Hospital of Larissa, University of Thessaly, Biopolis, GR-41110 Larissa, Greece.
| | - Ioannis Tsougos
- Department of Medical Physics, University Hospital of Larissa, University of Thessaly, Biopolis, GR-41110 Larissa, Greece.
| | - Katerina Vassiou
- Department of Radiology, University Hospital of Larissa, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Ondřej Malina
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Czech Republic.
| | - Michaela Polaskova
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Czech Republic. .,Department of Experimental Physics, Faculty of Science, Palacký University Olomouc, 17. Listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Christina D Polyzou
- Department of Chemistry, Laboratory of Inorganic Chemistry, University of Patras, 26504, Patras, Greece.
| | - Christos T Chasapis
- NMR Facility, Instrumental Analysis Laboratory, School of Natural Sciences, University of Patras, 26504, Patras, Greece
| | - Vassilis Tangoulis
- Department of Chemistry, Laboratory of Inorganic Chemistry, University of Patras, 26504, Patras, Greece.
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6
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Gong Y, Li ZH, Yan X, Wang YQ, Zhao CY, Han WK, Hu QT, Lu HS, Gu ZG. Bivariate Metal-Organic Frameworks with Tunable Spin-Crossover Properties. Chemistry 2020; 26:12472-12480. [PMID: 32578255 DOI: 10.1002/chem.202002544] [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: 05/25/2020] [Revised: 06/18/2020] [Indexed: 11/05/2022]
Abstract
In this work, pyrazine (A), aminopyrazine (B), quinoxaline (C), and 5,6,7,8-tetrahydroquinoxaline (D) have been screened out among a large number of pyrazine derivatives to construct Hofmann-type metal-organic frameworks (MOFs) Fe(L)[M(CN)4 ] (M=Pt, Pd) with similar 3D pillared-layer structures. X-ray single-crystal diffraction reveals that the alternate linkage between M and FeII ions through cyano bridges forms the 2D extended metal cyanide sheets, and ligands A-D acted as vertical columns to connect the 2D sheets to give 3D pillared-layer structures. Subsequently, a series of bivariate MOFs were constructed by pairwise combination of the four ligands A-D, which were confirmed by 1 H NMR, PXRD, FTIR, and Raman spectroscopy. The results demonstrated that ligand size and crystallization rate play a dominant role in constructing bivariate Hofmann-type MOFs. More importantly, the spin-crossover (SCO) properties of the bivariate MOFs can be finely tuned by adjusting the proportion of the two pillared ligands in the 3D Hofmann-type structures. Remarkably, the spin transition temperatures, Tc ↑ and Tc ↓ of Fe(A)x (B)1-x [Pt(CN)4 ] (x=0 to 1) can be adjusted from 239 to 254 K and from 248 to 284 K, respectively. Meanwhile, the width of the hysteresis loops can be widened from 9 to 30 K. Changing Pt to Pd, the hysteresis loops of Fe(A)x (B)1-x [Pd(CN)4 ] can be tuned from 9 (Tc ↑=215 K, Tc ↓=206 K) to 24 K (Tc ↑=300 K, Tc ↓=276 K). This research provides wider implications in the development of advanced bistable materials, especially in precisely regulating SCO properties.
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Affiliation(s)
- Yu Gong
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Zhi-Hua Li
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Xiaodong Yan
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Ya-Qin Wang
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Chen-Yang Zhao
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Wang-Kang Han
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Qing-Tao Hu
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Hui-Shu Lu
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China
| | - Zhi-Guo Gu
- Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Ministry of Education, Jiangnan University, Wuxi, 214122, P. R. China.,International Joint Research Center for Photoresponsive, Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P. R. China
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7
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Jiménez J, Glatz J, Benchohra A, Gontard G, Chamoreau L, Meunier J, Bousseksou A, Lescouëzec R. Electron Transfer in the Cs⊂{Mn
4
Fe
4
} Cubic Switch: A Soluble Molecular Model of the MnFe Prussian‐Blue Analogues. Angew Chem Int Ed Engl 2020; 59:8089-8093. [DOI: 10.1002/anie.201916199] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/11/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Juan‐Ramón Jiménez
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Jana Glatz
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Amina Benchohra
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Geoffrey Gontard
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Lise‐Marie Chamoreau
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Jean‐François Meunier
- CNRSUniversité de ToulouseLaboratoire de Chimie de Coordination 205 route de Narbonne 31077 Toulouse France
| | - Azzedine Bousseksou
- CNRSUniversité de ToulouseLaboratoire de Chimie de Coordination 205 route de Narbonne 31077 Toulouse France
| | - Rodrigue Lescouëzec
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
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8
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Jiménez J, Glatz J, Benchohra A, Gontard G, Chamoreau L, Meunier J, Bousseksou A, Lescouëzec R. Electron Transfer in the Cs⊂{Mn
4
Fe
4
} Cubic Switch: A Soluble Molecular Model of the MnFe Prussian‐Blue Analogues. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Juan‐Ramón Jiménez
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Jana Glatz
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Amina Benchohra
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Geoffrey Gontard
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Lise‐Marie Chamoreau
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
| | - Jean‐François Meunier
- CNRSUniversité de ToulouseLaboratoire de Chimie de Coordination 205 route de Narbonne 31077 Toulouse France
| | - Azzedine Bousseksou
- CNRSUniversité de ToulouseLaboratoire de Chimie de Coordination 205 route de Narbonne 31077 Toulouse France
| | - Rodrigue Lescouëzec
- Institut Parisien de Chimie Moléculaire—CNRS UMR 8232UPMC—Paris 6Sorbonne Université 4 place Jussieu 75252 Paris cedex 05 France
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9
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Torres-Cavanillas R, Lima-Moya L, Tichelaar FD, Zandbergen HW, Giménez-Marqués M, Coronado E. Downsizing of robust Fe-triazole@SiO 2 spin-crossover nanoparticles with ultrathin shells. Dalton Trans 2019; 48:15465-15469. [PMID: 31241090 DOI: 10.1039/c9dt02086a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chemical protocol to design robust hybrid [Fe(Htrz)2(trz)](BF4)@SiO2 nanoparticles (NPs) with sizes as small as 28 nm and ultrathin silica shells below 3 nm has been developed. These NPs present a characteristic abrupt spin transition with a subsequent decrease in the width of the thermal hysteresis upon reducing the NP size.
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Affiliation(s)
- R Torres-Cavanillas
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - L Lima-Moya
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - F D Tichelaar
- Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - H W Zandbergen
- Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - M Giménez-Marqués
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain.
| | - E Coronado
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980 Paterna, Spain.
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10
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Ge J, Chen Z, Zhang L, Liang X, Su J, Kurmoo M, Zuo J. A Two‐Dimensional Iron(II) Coordination Polymer with Synergetic Spin‐Crossover and Luminescent Properties. Angew Chem Int Ed Engl 2019; 58:8789-8793. [DOI: 10.1002/anie.201903281] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Jing‐Yuan Ge
- College of Materials and Environmental EngineeringHangzhou Dianzi University Hangzhou 310018 China
| | - Zhongyan Chen
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Li Zhang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Xiao Liang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Jian Su
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Mohamedally Kurmoo
- Institut de Chimie de StrasbourgUniversité de Strasbourg, CNRS-UMR 7177 4 rue Blaise Pascal 67008 Strasbourg France
| | - Jing‐Lin Zuo
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
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11
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Ge J, Chen Z, Zhang L, Liang X, Su J, Kurmoo M, Zuo J. A Two‐Dimensional Iron(II) Coordination Polymer with Synergetic Spin‐Crossover and Luminescent Properties. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903281] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jing‐Yuan Ge
- College of Materials and Environmental EngineeringHangzhou Dianzi University Hangzhou 310018 China
| | - Zhongyan Chen
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Li Zhang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Xiao Liang
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Jian Su
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Mohamedally Kurmoo
- Institut de Chimie de StrasbourgUniversité de Strasbourg, CNRS-UMR 7177 4 rue Blaise Pascal 67008 Strasbourg France
| | - Jing‐Lin Zuo
- State Key Laboratory of Coordination ChemistrySchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
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12
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Dugay J, Evers W, Torres-Cavanillas R, Giménez-Marqués M, Coronado E, Van der Zant HSJ. Charge Mobility and Dynamics in Spin-Crossover Nanoparticles Studied by Time-Resolved Microwave Conductivity. J Phys Chem Lett 2018; 9:5672-5678. [PMID: 30212213 DOI: 10.1021/acs.jpclett.8b02267] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We use the electrodeless time-resolved microwave conductivity (TRMC) technique to characterize spin-crossover (SCO) nanoparticles. We show that TRMC is a simple and accurate means for simultaneously assessing the magnetic state of SCO compounds and charge transport information on the nanometer length scale. In the low-spin state from liquid nitrogen temperature up to 360 K the TRMC measurements present two well-defined regimes in the mobility and in the half-life times, in which the former transition temperature TR occurs near 225 K. Below TR, we propose that an activationless regime taking place associated with short lifetimes of the charge carriers points at the presence of shallow-trap states. Above TR, these states are thermally released, yielding a thermally activated hopping regime where longer hops increase the mobility and, concomitantly, the barrier energy. The activation energy could originate not only from intricate contributions such as polaronic self-localizations but also from dynamic disorder due to phonons and/or thermal fluctuations of SCO moieties.
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Affiliation(s)
- Julien Dugay
- Kavli Institute of Nanoscience , Delft University of Technology , Lorentzweg 1 , 2628 CJ Delft , The Netherlands
- Instituto de Ciencia Molecular (ICMol) , Universidad de Valencia , Catedrático José Beltrán 2 , 46980 Paterna , Spain
| | - Wiel Evers
- Kavli Institute of Nanoscience , Delft University of Technology , Lorentzweg 1 , 2628 CJ Delft , The Netherlands
- Optoelectronic Materials Section, Delft ChemTech, Faculty of Applied Sciences , Delft University of Technology , Julianalaan 136 , 2628 BL Delft , The Netherlands
| | - Ramón Torres-Cavanillas
- Instituto de Ciencia Molecular (ICMol) , Universidad de Valencia , Catedrático José Beltrán 2 , 46980 Paterna , Spain
| | - Mónica Giménez-Marqués
- Instituto de Ciencia Molecular (ICMol) , Universidad de Valencia , Catedrático José Beltrán 2 , 46980 Paterna , Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular (ICMol) , Universidad de Valencia , Catedrático José Beltrán 2 , 46980 Paterna , Spain
| | - Herre S J Van der Zant
- Kavli Institute of Nanoscience , Delft University of Technology , Lorentzweg 1 , 2628 CJ Delft , The Netherlands
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13
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Li H, Peng H. Recent advances in self-assembly of spin crossover materials and their applications. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2017.12.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Wang CF, Yang GY, Yao ZS, Tao J. Monitoring the Spin States of Ferrous Ions by Fluorescence Spectroscopy in Spin-Crossover-Fluorescent Hybrid Materials. Chemistry 2018; 24:3218-3224. [DOI: 10.1002/chem.201704901] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Chun-Feng Wang
- Key Laboratory of Cluster Science of Ministry of Education; School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 P.R. China
| | - Guo-Yu Yang
- Key Laboratory of Cluster Science of Ministry of Education; School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 P.R. China
| | - Zi-Shuo Yao
- Key Laboratory of Cluster Science of Ministry of Education; School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 P.R. China
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education; School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 P.R. China
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Feltham HLC, Dankhoff K, Meledandri CJ, Brooker S. Towards Dual-Functionality Spin-Crossover Complexes. Chempluschem 2018; 83:582-589. [DOI: 10.1002/cplu.201700512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/09/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
| | - Katja Dankhoff
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
- Current address: Inorganic Chemistry II, Department of Chemistry; University of Bayreuth; Universitätstrasse 30 Bayreuth 95447 Germany
| | - Carla J. Meledandri
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
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Kurz H, Lochenie C, Wagner KG, Schneider S, Karg M, Weber B. Synthesis and Optical Properties of Phenanthroline-Derived Schiff Base-Like Dinuclear RuII-NiIIComplexes. Chemistry 2018; 24:5100-5111. [DOI: 10.1002/chem.201704632] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Hannah Kurz
- Anorganische Chemie II; Universität Bayreuth; Universitätsstr. 30, NW I 95440 Bayreuth Germany
| | - Charles Lochenie
- Anorganische Chemie II; Universität Bayreuth; Universitätsstr. 30, NW I 95440 Bayreuth Germany
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Sciences et d'Ingénierie Supramoléculaires; Université de Strasbourg; 67083 Strasbourg Cedex France
| | - Kristina G. Wagner
- Physikalische Chemie I; Heinrich-Heine-Universität Düsseldorf; 40204 Düsseldorf Germany
| | - Sandra Schneider
- Anorganische Chemie II; Universität Bayreuth; Universitätsstr. 30, NW I 95440 Bayreuth Germany
| | - Matthias Karg
- Physikalische Chemie I; Heinrich-Heine-Universität Düsseldorf; 40204 Düsseldorf Germany
| | - Birgit Weber
- Anorganische Chemie II; Universität Bayreuth; Universitätsstr. 30, NW I 95440 Bayreuth Germany
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17
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Suleimanov I, Molnár G, Salmon L, Bousseksou A. Near‐Infrared Luminescence Switching in a Spin‐Crossover Polymer Nanocomposite. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Iurii Suleimanov
- LCC CNRS and Université de Toulouse UPS, INP 31077 Toulouse France
| | - Gábor Molnár
- LCC CNRS and Université de Toulouse UPS, INP 31077 Toulouse France
| | - Lionel Salmon
- LCC CNRS and Université de Toulouse UPS, INP 31077 Toulouse France
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Burrows KE, McGrath SE, Kulmaczewski R, Cespedes O, Barrett SA, Halcrow MA. Spin States of Homochiral and Heterochiral Isomers of [Fe(PyBox) 2 ] 2+ Derivatives. Chemistry 2017; 23:9067-9075. [PMID: 28387453 DOI: 10.1002/chem.201700820] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 11/08/2022]
Abstract
The following iron(II) complexes of 2,6-bis(oxazolinyl)pyridine (PyBox; LH ) derivatives are reported: [Fe(LH )2 ][ClO4 ]2 (1); [Fe((R)-LMe )2 ][ClO4 ]2 ((R)-2; LMe =2,6-bis{4-methyloxazolinyl}pyridine); [Fe((R)-LPh )2 ][ClO4 ]2 ((R)-3) and [Fe((R)-LPh )((S)-LPh )][ClO4 ]2 ((RS)-3; LPh =2,6-bis{4-phenyloxazolinyl}pyridine); and [Fe((R)-LiPr )2 ][ClO4 ]2 ((R)-4) and [Fe((R)-LiPr )((S)-LiPr )][ClO4 ]2 ((RS)-4; LiPr =2,6-bis{4-isopropyloxazolinyl}pyridine). Solid (R)-3⋅MeNO2 exhibits an unusual very gradual, but discontinuous thermal spin-crossover with an approximate T1/2 of 350 K. The discontinuity around 240 K lies well below T1/2 , and is unconnected to a crystallographic phase change occurring at 170 K. Rather, it can be correlated with a gradual ordering of the ligand conformation as the temperature is raised. The other solid compounds either exhibit spin-crossover above room temperature (1 and (RS)-3), or remain high-spin between 5-300 K [(R)-2, (R)-4 and (RS)-4]. Homochiral (R)-3 and (R)-4 exhibit more twisted ligand conformations and coordination geometries than their heterochiral isomers, which can be attributed to steric clashes between ligand substituents [(R)-3]; or, between the isopropyl substituents of one ligand and the backbone of the other ((R)-4). In solution, (RS)-3 retains its structural integrity but (RS)-4 undergoes significant racemization through ligand redistribution by 1 H NMR. (R)-4 and (RS)-4 remain high-spin in solution, whereas the other compounds all undergo spin-crossover equilibria. Importantly, T1/2 for (R)-3 (244 K) is 34 K lower than for (RS)-3 (278 K) in CD3 CN, which is the first demonstration of chiral discrimination between metal ion spin states in a molecular complex.
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Affiliation(s)
- Kay E Burrows
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Sarah E McGrath
- 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
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds, LS2 9JT, UK
| | - Simon A Barrett
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
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19
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Félix G, Mikolasek M, Molnár G, Nicolazzi W, Bousseksou A. Control of the Phase Stability in Spin‐Crossover Core–Shell Nanoparticles through the Elastic Interface Energy. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700121] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gautier Félix
- LCC CNRS and Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
- Institut Charles Gerhardt Université Montpellier Place Eugène Bataillon 34095 Montpellier France
| | - Mirko Mikolasek
- LCC CNRS and Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
- Institut Charles Gerhardt Université Montpellier Place Eugène Bataillon 34095 Montpellier France
| | - Gábor Molnár
- LCC CNRS and Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
| | - William Nicolazzi
- LCC CNRS and Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
| | - Azzedine Bousseksou
- LCC CNRS and Université de Toulouse (UPS, INP) 205 route de Narbonne 31077 Toulouse France
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Cook LJK, Kulmaczewski R, Cespedes O, Halcrow MA. Different Spin-State Behaviors in Isostructural Solvates of a Molecular Iron(II) Complex. Chemistry 2015; 22:1789-99. [DOI: 10.1002/chem.201503989] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Laurence J. Kershaw Cook
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK), Fax
- Department of Chemistry; University of Bath; Claverton Down Bath BA2 7AY UK)
| | - Rafal Kulmaczewski
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK), Fax
| | - Oscar Cespedes
- School of Physics and Astronomy; University of Leeds; E.C. Stoner Building Leeds LS2 9JT UK)
| | - Malcolm A. Halcrow
- School of Chemistry; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK), Fax
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21
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Suleimanov I, Costa JS, Molnár G, Salmon L, Fritsky I, Bousseksou A. Effect of ligand substitution in [Fe(H-trz)2(trz)]BF4 spin crossover nanoparticles. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2015. [DOI: 10.17721/fujcv3i1p66-72] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Spin crossover iron(II) 1,2,4-triazole-based coordination compounds in the form of nanoparticles were prepared using a reverse microemulsion technique. Ligand substitution approach was applied to decrease the spin crossover temperature towards room temperature in the well-known [Fe(Htrz)2(trz)]BF4 complex. The compositions of the particles were determined by elemental analysis and thermogravimetry. The morphology was monitored by transition electron microscopy (TEM). The effect associated with the ligand substitution was investigated by optical and magnetic measurements. Transition temperature has been reduced by 33 K comparing the unsubstituted sample to that with 5 % substitution.
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Affiliation(s)
| | | | - Gábor Molnár
- Laboratoire de Chimie de Coordination, CNRS & Université de Toulouse
| | - Lionel Salmon
- Laboratoire de Chimie de Coordination, CNRS & Université de Toulouse
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Wang CF, Li RF, Chen XY, Wei RJ, Zheng LS, Tao J. Synergetic Spin Crossover and Fluorescence in One-Dimensional Hybrid Complexes. Angew Chem Int Ed Engl 2014; 54:1574-7. [DOI: 10.1002/anie.201410454] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 11/24/2014] [Indexed: 11/08/2022]
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23
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Synergetic Spin Crossover and Fluorescence in One-Dimensional Hybrid Complexes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410454] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Grohmann A, Haryono M, Student K, Müller P, Stocker M. Mapping the Spin State in Spin-Crossover Complex Assemblies: Current-Imaging Tunnelling Spectroscopy (CITS). Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201156] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Chiruta D, Linares J, Dimian M, Garcia Y. Size Effect and Role of Short- and Long-Range Interactions on 1D Spin-Crossover Systems within the Framework of an Ising-Like Model. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201316] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Craig GA, Costa JS, Roubeau O, Teat SJ, Aromí G. Local Coordination Geometry and Spin State in Novel FeIIComplexes with 2,6-Bis(pyrazol-3-yl)pyridine-Type Ligands as Controlled by Packing Forces: Structural Correlations. Chemistry 2012; 18:11703-15. [DOI: 10.1002/chem.201200820] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Indexed: 11/10/2022]
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27
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Dong DP, Liu T, Kanegawa S, Kang S, Sato O, He C, Duan CY. Photoswitchable Dynamic Magnetic Relaxation in a Well-Isolated {Fe2Co} Double-Zigzag Chain. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201105987] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Dong DP, Liu T, Kanegawa S, Kang S, Sato O, He C, Duan CY. Photoswitchable Dynamic Magnetic Relaxation in a Well-Isolated {Fe2Co} Double-Zigzag Chain. Angew Chem Int Ed Engl 2012; 51:5119-23. [DOI: 10.1002/anie.201105987] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 03/09/2012] [Indexed: 11/06/2022]
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29
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Liu T, Dong DP, Kanegawa S, Kang S, Sato O, Shiota Y, Yoshizawa K, Hayami S, Wu S, He C, Duan CY. Reversible Electron Transfer in a Linear {Fe2Co} Trinuclear Complex Induced by Thermal Treatment and Photoirraditaion. Angew Chem Int Ed Engl 2012; 51:4367-70. [DOI: 10.1002/anie.201201305] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Indexed: 11/11/2022]
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30
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Liu T, Dong DP, Kanegawa S, Kang S, Sato O, Shiota Y, Yoshizawa K, Hayami S, Wu S, He C, Duan CY. Reversible Electron Transfer in a Linear {Fe2Co} Trinuclear Complex Induced by Thermal Treatment and Photoirraditaion. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201305] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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