1
|
Zakrzewski J, Liberka M, Wang J, Chorazy S, Ohkoshi SI. Optical Phenomena in Molecule-Based Magnetic Materials. Chem Rev 2024; 124:5930-6050. [PMID: 38687182 PMCID: PMC11082909 DOI: 10.1021/acs.chemrev.3c00840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Since the last century, we have witnessed the development of molecular magnetism which deals with magnetic materials based on molecular species, i.e., organic radicals and metal complexes. Among them, the broadest attention was devoted to molecule-based ferro-/ferrimagnets, spin transition materials, including those exploring electron transfer, molecular nanomagnets, such as single-molecule magnets (SMMs), molecular qubits, and stimuli-responsive magnetic materials. Their physical properties open the application horizons in sensors, data storage, spintronics, and quantum computation. It was found that various optical phenomena, such as thermochromism, photoswitching of magnetic and optical characteristics, luminescence, nonlinear optical and chiroptical effects, as well as optical responsivity to external stimuli, can be implemented into molecule-based magnetic materials. Moreover, the fruitful interactions of these optical effects with magnetism in molecule-based materials can provide new physical cross-effects and multifunctionality, enriching the applications in optical, electronic, and magnetic devices. This Review aims to show the scope of optical phenomena generated in molecule-based magnetic materials, including the recent advances in such areas as high-temperature photomagnetism, optical thermometry utilizing SMMs, optical addressability of molecular qubits, magneto-chiral dichroism, and opto-magneto-electric multifunctionality. These findings are discussed in the context of the types of optical phenomena accessible for various classes of molecule-based magnetic materials.
Collapse
Affiliation(s)
- Jakub
J. Zakrzewski
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Doctoral
School of Exact and Natural Sciences, Jagiellonian
University, Lojasiewicza
11, 30-348 Krakow, Poland
| | - Michal Liberka
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
- Doctoral
School of Exact and Natural Sciences, Jagiellonian
University, Lojasiewicza
11, 30-348 Krakow, Poland
| | - Junhao Wang
- Department
of Materials Science, Faculty of Pure and Applied Science, University of Tsukuba, 1-1-1 Tonnodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Szymon Chorazy
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Shin-ichi Ohkoshi
- Department
of Chemistry, School of Science, The University
of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
2
|
Kaushik K, Mehta S, Das M, Ghosh S, Kamilya S, Mondal A. Stimuli-responsive magnetic materials: impact of spin and electronic modulation. Chem Commun (Camb) 2023; 59:13107-13124. [PMID: 37846652 DOI: 10.1039/d3cc04268e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Addressing molecular bistability as a function of external stimuli, especially in spin-crossover (SCO) and metal-to-metal electron transfer (MMET) systems, has seen a surge of interest in the field of molecule-based magnetic materials due to their enormous potential in various technological applications such as molecular spintronics, memory and electronic devices, switches, sensors, and many more. The fine-tuning of molecular components allow the design and synthesis of materials with tailored properties for these vast applications. In this Feature Article, we discuss a part of our research work into this broad topic, pertaining to the recent discoveries in the field of switchable molecular magnetic materials based on SCO and MMET systems, along with some historical background of the area and related accomplishments made in recent years.
Collapse
Affiliation(s)
- Krishna Kaushik
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sakshi Mehta
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Mayurika Das
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sounak Ghosh
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sujit Kamilya
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Abhishake Mondal
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| |
Collapse
|
3
|
Grunwald J, Torres J, Buchholz A, Näther C, Kämmerer L, Gruber M, Rohlf S, Thakur S, Wende H, Plass W, Kuch W, Tuczek F. Defying the inverse energy gap law: a vacuum-evaporable Fe(ii) low-spin complex with a long-lived LIESST state. Chem Sci 2023; 14:7361-7380. [PMID: 37416721 PMCID: PMC10321519 DOI: 10.1039/d3sc00561e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/25/2023] [Indexed: 07/08/2023] Open
Abstract
The novel vacuum-evaporable complex [Fe(pypypyr)2] (pypypyr = bipyridyl pyrrolide) was synthesised and analysed as bulk material and as a thin film. In both cases, the compound is in its low-spin state up to temperatures of at least 510 K. Thus, it is conventionally considered a pure low-spin compound. According to the inverse energy gap law, the half time of the light-induced excited high-spin state of such compounds at temperatures approaching 0 K is expected to be in the regime of micro- or nanoseconds. In contrast to these expectations, the light-induced high-spin state of the title compound has a half time of several hours. We attribute this behaviour to a large structural difference between the two spin states along with four distinct distortion coordinates associated with the spin transition. This leads to a breakdown of single-mode behaviour and thus drastically decreases the relaxation rate of the metastable high-spin state. These unprecedented properties open up new strategies for the development of compounds showing light-induced excited spin state trapping (LIESST) at high temperatures, potentially around room temperature, which is relevant for applications in molecular spintronics, sensors, displays and the like.
Collapse
Affiliation(s)
- Jan Grunwald
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel 24098 Kiel Germany +49 431 880 1520 +49 431 880 1410
| | - Jorge Torres
- Institut für Experimentalphysik, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany +49 30 838 452098 +49 30 838 52098
| | - Axel Buchholz
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena 07743 Jena Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel 24098 Kiel Germany +49 431 880 1520 +49 431 880 1410
| | - Lea Kämmerer
- Fakultät für Physik and CENIDE, Universität Duisburg-Essen 47048 Duisburg Germany
| | - Manuel Gruber
- Fakultät für Physik and CENIDE, Universität Duisburg-Essen 47048 Duisburg Germany
| | - Sebastian Rohlf
- Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel 24098 Kiel Germany
| | - Sangeeta Thakur
- Institut für Experimentalphysik, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany +49 30 838 452098 +49 30 838 52098
| | - Heiko Wende
- Fakultät für Physik and CENIDE, Universität Duisburg-Essen 47048 Duisburg Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-Universität Jena 07743 Jena Germany
| | - Wolfgang Kuch
- Institut für Experimentalphysik, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany +49 30 838 452098 +49 30 838 52098
| | - Felix Tuczek
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel 24098 Kiel Germany +49 431 880 1520 +49 431 880 1410
| |
Collapse
|
4
|
Powell CJ, Ferrence GM, Bosch E, Groeneman RH. Engineering solid-state photoreactivity within silver(I) organosulfonate complexes containing an ester-functionalized reactant molecule. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2111260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Conrad J. Powell
- Department of Biological Sciences, Webster University, St. Louis, MO, USA
| | | | - Eric Bosch
- Department of Chemistry and Biochemistry, Missouri State University, Springfield, MO, USA
| | - Ryan H. Groeneman
- Department of Biological Sciences, Webster University, St. Louis, MO, USA
| |
Collapse
|
5
|
Ghosh S, Bagchi S, Kamilya S, Mehta S, Sarkar D, Herchel R, Mondal A. Impact of counter anions on spin-state switching of manganese(III) complexes containing an azobenzene ligand. Dalton Trans 2022; 51:7681-7694. [PMID: 35521740 DOI: 10.1039/d2dt00660j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four mononuclear manganese(III) complexes coordinated with photo-active hexadentate azobenzene ligands, [Mn(5azo-sal2-323)](X) (X = Cl, 1; X = BF4, 2; X = ClO4, 3; X = PF6, 4), were prepared. The impact of various counter anions on the stabilization and switching of the spin state of the manganese(III) center was explored through detailed magneto-structural investigation using variable temperature single-crystal X-ray diffraction, magnetic, spectroscopic, and spectroelectrochemical studies, along with theoretical calculations. All four complexes consisted of an isostructural monocationic distorted octahedral MnN4O2 coordination environment offered by the hexadentate ligand and Cl-, BF4-, ClO4-, and PF6- as counter anions respectively. Complex 1 with a spherical Cl- counter anion showed a reversible and gradual spin-state switching between low-spin (LS) (S = 1) and high-spin (HS) (S = 2) states above 400 K, where non-covalent cation-anion interactions played a significant role in stabilizing the LS state. While, irrespective of the shape of the counter anion, complexes 2-4 remained in the HS state throughout the measured temperature range of 300-2 K, where strong π-π interaction between the azobenzene motifs among cationic units played a substantial role in stabilizing the HS state. Furthermore, magnetic data analyses revealed significantly large zero-field splitting in the S = 1 state for 1 (D = 19.4 cm-1, E/D = 0.008) in comparison with that in the S = 2 state for 2-4 (D = 3.99-4.97 cm-1, E/D = 0.002-0.195). Spectroelectrochemical investigations revealed the quasi-reversible reduction and oxidation of the manganese(III) center to manganese(II) and manganese(IV), respectively. A detailed theoretical calculation at the DFT and CASSCF level of theory was carried out to better understand the magneto-structural correlation.
Collapse
Affiliation(s)
- Subrata Ghosh
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sukanya Bagchi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sujit Kamilya
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Sakshi Mehta
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Debopam Sarkar
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| | - Radovan Herchel
- Department of Inorganic Chemistry, Faculty of Science, Palacký University, CZ-771 46 Olomouc, Czech Republic
| | - Abhishake Mondal
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Sir C V Raman Road, Bangalore 560012, India.
| |
Collapse
|
6
|
Qiu JZ, You Y, Yu Y, Chen ZF, Guo CJ, Zhong YL, Lin WQ, Shu XG. A Mononuclear Iron(II) Spin-Crossover Molecule Decorated by Photochromic Azobenzene Group. Molecules 2022; 27:molecules27051571. [PMID: 35268672 PMCID: PMC8912052 DOI: 10.3390/molecules27051571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 02/05/2023] Open
Abstract
Aiming at constructing photoresponsive spin crossover (SCO) behavior, herein we designed a new ligand Abtz (Abtz = (E)-N-(4-((E)-phenyldiazenyl)phenyl)-1-(thiazol-4-yl)methanimine) which was decorated by a photochromic azobenzene group. Based on this photochromic ligand, a mononuclear Fe(II) SCO molecule [Fe(Abtz)3](BF4)2·(EAC)2 (1, EAC = ethyl acetate) was successfully synthesized and showed a complete one-step SCO behavior. Under continuous UV light and blue-light exposure, the cis–trans photoisomerization of both ligand Abtz and compound 1 in the liquid phase was confirmed through UV–Vis spectra. Moreover, the 1H-NMR spectra of Abtz reveal a trans–cis conversion ratio of 37%. Although the UV–Vis spectra reveal the photochromic behavior for 1 in the solution phase, the SCO behavior in the liquid state is absent according to the variable-temperature Evans method, suggesting the possible decomposition. Moreover, in the solid state, the cis–trans photoisomerization of both Abtz and 1 was not observed, due to the steric hindrance.
Collapse
Affiliation(s)
- Jiang-Zhen Qiu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Yong You
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Ye Yu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Zhuo-Fan Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Cheng-Jie Guo
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
| | - Yi-Ling Zhong
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
| | - Wei-Quan Lin
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| | - Xu-Gang Shu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (Y.Y.); (Y.Y.); (Z.-F.C.); (C.-J.G.)
- Correspondence: (J.-Z.Q.); (W.-Q.L.); (X.-G.S.)
| |
Collapse
|
7
|
Bosch E, Ferrence GM, Powell C, Unruh DK, Krueger HR, Groeneman R. Cooperative non-covalent interactions and synthetic feed as driving forces to structural diversity within organic co-crystals containing isosteric perhalobenzenes. CrystEngComm 2022. [DOI: 10.1039/d2ce00360k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of three co-crystals based upon a pair of isosteric halogen-bond donors, namely 1,4-diiodoperchlorobenzene and 1,4-diiodoperfluorobenzene, along with the acceptor trans-1-(4-methylbenzoate)-2-(4-pyridyl)ethylene is reported. Along with the varied stoichiometric ratios...
Collapse
|
8
|
Shen KY, Zhang CJ, Qu LY, Jiang SQ, Zhang Y, Tong ML, Bao X. Thermodriven, Acidity-Driven, and Photodriven Spin-State Switching in Pyridylacylhydrazoneiron(II) Complexes at or above Room Temperature. Inorg Chem 2021; 60:18225-18233. [PMID: 34784709 DOI: 10.1021/acs.inorgchem.1c02866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The magnetic bistability of spin-crossover (SCO) materials is highly appealing for applications as molecular switches and information storage. However, switching of the spin state around room temperature remains challenging. In this work, we reported the successful manipulation of the spin states of two iron(II) complexes (1-Fe and 2-Fe) based on pyridylacylhydrazone ligands in manifold ways. Both complexes are stabilized in the low-spin (LS) state at room temperature because of the strong ligand-field strength imposed by the ligands. 2-Fe shows thermoinduced SCO above room temperature with a very large and reproducible hysteresis (>50 K), while 1-Fe remains in the LS state up to 400 K. Acidity-driven spin-state switching of the two complexes was achieved at room temperature as a result of the complex dissociation and release of iron(II) in its high-spin (HS) state. Recovery of the complex is feasible upon further alkalization treatment in the case of 1-Fe, allowing bidirectional modulation of the spin state of the metal center. Light-driven one-way switching from LS to HS is also achieved by virtue of E-to-Z isomerization at the C═N double bond, which results in dissociation of the complex because of the poor binding affinity in the Z configuration.
Collapse
Affiliation(s)
- Kai Yan Shen
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Chen Ju Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Lei Yu Qu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Shi Qing Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Yi Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Ming Liang Tong
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xin Bao
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| |
Collapse
|
9
|
Wang LF, Lv BH, Wu FT, Huang GZ, Ruan ZY, Chen YC, Liu M, Ni ZP, Tong ML. Reversible on-off switching of spin-crossover behavior via photochemical [2+2] cycloaddition reaction. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1093-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Xue S, Guo Y, Garcia Y. Spin crossover crystalline materials engineered via single-crystal-to-single-crystal transformations. CrystEngComm 2021. [DOI: 10.1039/d1ce00234a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This highlight illustrates the latest crystalline materials engineered via SCSC transformations, with emphasis on the onset and progress of spin crossover in a crystal control.
Collapse
Affiliation(s)
- Shufang Xue
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yunnan Guo
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| |
Collapse
|
11
|
Nakaya M, Ohtani R, Lindoy LF, Hayami S. Light-induced excited spin state trapping in iron(iii) complexes. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01188f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review discusses the correlation of the local and whole molecular structure of iron(iii) complexes with the magnetic properties including the light-induced excited spin-state trapping (LIESST) effect.
Collapse
Affiliation(s)
- Manabu Nakaya
- Department of Chemistry
- Faculty of Science
- Josai University
- Sakado
- Japan
| | - Ryo Ohtani
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Fukuoka 819-0395
- Japan
| | | | - Shinya Hayami
- Department of Chemistry
- Faculty of Advanced Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
| |
Collapse
|
12
|
Tumanov SV, Veber SL, Tolstikov SE, Artiukhova NA, Ovcharenko VI, Fedin MV. Exchange interactions in photoinduced magnetostructural states of copper( ii)–nitroxide spin dyads. Dalton Trans 2020; 49:5851-5858. [DOI: 10.1039/d0dt00706d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We investigate intra- and intercluster exchange couplings in photoinduced states of copper(ii)–nitroxide based molecular magnets (“breathing crystals”) using variable-temperature EPR spectroscopy.
Collapse
Affiliation(s)
- Sergey V. Tumanov
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Sergey L. Veber
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | | | | | | | - Matvey V. Fedin
- International Tomography Center SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| |
Collapse
|
13
|
Megow S, Fitschen HL, Tuczek F, Temps F. Ultrafast Photodynamics of an Azopyridine-Functionalized Iron(II) Complex: Implications for the Concept of Ligand-Driven Light-Induced Spin Change. J Phys Chem Lett 2019; 10:6048-6054. [PMID: 31549841 DOI: 10.1021/acs.jpclett.9b02083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report on the ultrafast photodynamics of an iron(II) complex with a photoisomerizable pentadentate azo-tetrapyridylamino ligand after irradiation with ultraviolet light. The results of femtosecond transient electronic absorption spectroscopy performed on the low-spin (LS) form of the title complex show that initial excitation of the ππ* state of the azopyridine unit in the ligand at λpump = 312 nm is followed by an ultrafast intersystem crossing (ISC) that leads to the formation of a metal-centered (MC) 5T state, in competition with the intended photoswitching of the azopyridine unit. Additional measurements carried out upon excitation of the singlet metal-to-ligand charge-transfer (1MLCT) transition at λpump = 455 nm suggest that this energy transfer occurs via an MLCT state. The resulting high-spin (HS) 5T state of the complex is metastable and recovers to the LS ground state with a time constant of ∼3 ns. The implications of these observations on the ligand-driven light-induced spin change concept are discussed.
Collapse
Affiliation(s)
- Sebastian Megow
- Institut für Physikalische Chemie , Christian-Albrechts-Universität , Olshausenstrasse 40 , 24098 Kiel , Germany
| | - Henrike-Leonie Fitschen
- Institut für Anorganische Chemie , Christian-Albrechts-Universität , Olshausenstrasse 40 , 24098 Kiel , Germany
| | - Felix Tuczek
- Institut für Anorganische Chemie , Christian-Albrechts-Universität , Olshausenstrasse 40 , 24098 Kiel , Germany
| | - Friedrich Temps
- Institut für Physikalische Chemie , Christian-Albrechts-Universität , Olshausenstrasse 40 , 24098 Kiel , Germany
| |
Collapse
|
14
|
Wang LF, Zhuang WM, Huang GZ, Chen YC, Qiu JZ, Ni ZP, Tong ML. Spin-crossover modulation via single-crystal to single-crystal photochemical [2 + 2] reaction in Hofmann-type frameworks. Chem Sci 2019; 10:7496-7502. [PMID: 31588302 PMCID: PMC6764279 DOI: 10.1039/c9sc02274k] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 07/03/2019] [Indexed: 02/01/2023] Open
Abstract
This study reports the first modulation of spin-crossover (SCO) behavior via a photochemical [2 + 2] cycloaddition reaction. Here we construct two no-solvent Fe(ii)-Ag(i) bimetallic Hofmann-type frameworks, [Fe(4-spy)2{Ag(CN)2}2] (1) and [Fe(2,4-bpe)2{Ag(CN)2}2] (2) (4-spy = 4-styrylpyridine, 2,4-bpe = trans-1-(2-pyridyl)-2-(4-pyridyl)ethylene). For 1, the dimerization of 4-spy results in a single-crystal to single-crystal (SCSC) transformation from 2D interdigitated layers to a 3D interpenetrated structure. Additionally, a 3D → 3D structural transformation accompanied with Ag(i)-N bond breaking is achieved via the photochemical cycloaddition reaction of 2,4-bpe in 2. More importantly, both the spin transition temperatures and the SCO character are effectively modulated; thus, this approach provides a new strategy for constructing photo-responsive SCO magnetic materials.
Collapse
Affiliation(s)
- Long-Fei Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Wei-Man Zhuang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Guo-Zhang Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Yan-Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Jiang-Zhen Qiu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Zhao-Ping Ni
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| | - Ming-Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education , School of ChemistrySun , Yat-Sen University , Guangzhou , 510275 P. R. China .
| |
Collapse
|
15
|
Cirera J, Ruiz E. Computational Modeling of Transition Temperatures in Spin-Crossover Systems. COMMENT INORG CHEM 2019. [DOI: 10.1080/02603594.2019.1608967] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jordi Cirera
- Departament de Química Inorgànica i Orgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica i Orgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona, Spain
| |
Collapse
|
16
|
Chastanet G, Lorenc M, Bertoni R, Desplanches C. Light-induced spin crossover—Solution and solid-state processes. CR CHIM 2018. [DOI: 10.1016/j.crci.2018.02.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
17
|
|
18
|
Shiga T, Sato Y, Tachibana M, Sato H, Matsumoto T, Sagayama H, Kumai R, Murakami Y, Newton GN, Oshio H. Carboxylic Acid Functionalized Spin-Crossover Iron(II) Grids for Tunable Switching and Hybrid Electrode Fabrication. Inorg Chem 2018; 57:14013-14017. [PMID: 30379073 DOI: 10.1021/acs.inorgchem.8b01856] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two carboxyl-substituted iron(II) grids, one protonated, [Fe4(HL)4](BF4)4·4MeCN·AcOEt (1), and the other deprotonated, [Fe4(L)4]·DMSO·EtOH (2), where H2L = 4-{4,5-bis[6-(3,5-dimethylpyrazol-1-yl)pyrid-2-yl]-1 H-imidazol-2-yl}benzoic acid, were synthesized. Single-crystal X-ray structure analyses reveal that both complexes have a tetranuclear [2 × 2] grid structure. 1 formed one-dimensional chains through intermolecular hydrogen bonds between the carboxylic acid units of neighboring grids, while 2 formed two-dimensional layers stabilized by π-π-stacking interactions. 1 showed spin transition between the 3HS-1LS and 1.5HS-2.5LS states around 200 K, while 2 showed spin-crossover between the 4LS and 2LS-2HS states above 300 K. A modified indium-tin oxide (ITO) electrode was fabricated by soaking the ITO in a solution of 1. The resultant electrode showed reversible redox waves attributed to the original redox processes of iron(II)/iron(III).
Collapse
Affiliation(s)
- Takuya Shiga
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| | - Yamato Sato
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| | - Minami Tachibana
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| | - Hiroki Sato
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| | - Takuto Matsumoto
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| | - Hajime Sagayama
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science , High Energy Accelerator Research Organization , Oho 1-1 , Tsukuba , Ibaraki 305-0801 , Japan
| | - Reiji Kumai
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science , High Energy Accelerator Research Organization , Oho 1-1 , Tsukuba , Ibaraki 305-0801 , Japan
| | - Youichi Murakami
- Photon Factory and Condensed Matter Research Center, Institute of Materials Structure Science , High Energy Accelerator Research Organization , Oho 1-1 , Tsukuba , Ibaraki 305-0801 , Japan
| | - Graham N Newton
- GSK Carbon Neutral Laboratories for Sustainable Chemistry , The University of Nottingham , Nottingham NG7 2TU , U.K
| | - Hiroki Oshio
- Graduate School of Pure and Applied Sciences , University of Tsukuba , Tennodai 1-1-1 , Tsukuba , Ibaraki 305-8571 , Japan
| |
Collapse
|
19
|
|
20
|
Abstract
Switching magnetic properties have attracted a wide interest from inorganic chemist for the objectives of information storage and quantum computing at the molecular level. This review is focused on magnetic switches based on a mechanical motion, which is an innovative approach. Three main strategies to control magnetic properties by a mechanical motion have been developed in the literature and will be described. The first one (ligand-induced spin change) consists in modulating the ligand field strength by a configuration change of the ligand in spin-crossover complexes. The second one (coordination-induced spin-state switching) is based on a change in the coordination number of a metallic center that is triggered by the motion of one ligand. The third one uses the modulation of the exchange interaction between two spin-centers by a mechanical motion.
Collapse
|
21
|
Klaß M, Krahmer J, Näther C, Tuczek F. Design, synthesis, and evaluation of nickel dipyridylmethane complexes for Coordination-Induced Spin State Switching (CISSS). Dalton Trans 2018; 47:1261-1275. [DOI: 10.1039/c7dt03952b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination of pyridine to a nickel(ii) dipyridylmethane complex changes the spin state.
Collapse
Affiliation(s)
- Michaela Klaß
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Jan Krahmer
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Christian Näther
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | - Felix Tuczek
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| |
Collapse
|
22
|
Ndiaye MM, Pillet S, Bendeif EE, Marchivie M, Chastanet G, Boukheddaden K, Triki S. Hidden Hysteretic Behavior of a Paramagnetic Iron(II) Network Revealed by Light Irradiation. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701098] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sébastien Pillet
- Université de Lorraine; CNRS; CRM2; Blvd des aiguillettes 54506 Vandœuvre-lès-Nancy France
| | - El-Eulmi Bendeif
- Université de Lorraine; CNRS; CRM2; Blvd des aiguillettes 54506 Vandœuvre-lès-Nancy France
| | - Mathieu Marchivie
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer 33608 Pessac France
| | - Guillaume Chastanet
- CNRS; Université de Bordeaux; ICMCB; 87 avenue du Dr. A. Schweitzer 33608 Pessac France
| | - Kamel Boukheddaden
- UMR-CNRS 8635; Univ. Versailles; 45 Av. des Etats-Unis 78035 Versailles France
| | - Smail Triki
- UMR CNRS 6521; Univ. Brest (UBO); C.S. 93837 29238 Brest Cedex 3 France
| |
Collapse
|
23
|
Affiliation(s)
- Anna J. McConnell
- Otto Diels-Institute of Organic Chemistry, Kiel University, Kiel, Germany
| |
Collapse
|
24
|
Tumanov SV, Veber SL, Tolstikov SE, Artiukhova NA, Romanenko GV, Ovcharenko VI, Fedin MV. Light-Induced Spin State Switching and Relaxation in Spin Pairs of Copper(II)–Nitroxide Based Molecular Magnets. Inorg Chem 2017; 56:11729-11737. [DOI: 10.1021/acs.inorgchem.7b01689] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergey V. Tumanov
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Sergey L. Veber
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | | | - Natalia A. Artiukhova
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Galina V. Romanenko
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Victor I. Ovcharenko
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
| | - Matvey V. Fedin
- International Tomography Center SB RAS, Institutskaya
Str. 3a, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| |
Collapse
|
25
|
Šalitroš I, Fuhr O, Gál M, Valášek M, Ruben M. Photoisomerization of Bis(tridentate) 2,6-Bis(1H
-pyrazol-1-yl)pyridine Ligands Exhibiting a Multi-anthracene Skeleton. Chemistry 2017; 23:10100-10109. [DOI: 10.1002/chem.201700825] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan Šalitroš
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Department of Inorganic Chemistry; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava 81237 Slovak Republic
| | - Olaf Fuhr
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Karlsruhe Nano-Micro Facility (KNMF); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Miroslav Gál
- Department of Inorganic Chemistry; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava 81237 Slovak Republic
| | - Michal Valášek
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Mario Ruben
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS); CNRS-Université de Strasbourg, 23; rue du Loess, BP 43 67034 Strasbourg cedex 2 France
| |
Collapse
|
26
|
Molecular magnetism, quo vadis? A historical perspective from a coordination chemist viewpoint☆. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.004] [Citation(s) in RCA: 240] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
27
|
Li P, de Bruin B, Reek JNH, Dzik WI. Photo- and Thermal Isomerization of (TP)Fe(CO)Cl2 [TP = Bis(2-diphenylphosphinophenyl)phenylphosphine]. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00644] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ping Li
- Homogeneous, Supramolecular
and Bio-Inspired Catalysis, van’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Bas de Bruin
- Homogeneous, Supramolecular
and Bio-Inspired Catalysis, van’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joost N. H. Reek
- Homogeneous, Supramolecular
and Bio-Inspired Catalysis, van’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Wojciech I. Dzik
- Homogeneous, Supramolecular
and Bio-Inspired Catalysis, van’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| |
Collapse
|
28
|
Zhang YZ, Ferko P, Siretanu D, Ababei R, Rath NP, Shaw MJ, Clérac R, Mathonière C, Holmes SM. Thermochromic and Photoresponsive Cyanometalate Fe/Co Squares: Toward Control of the Electron Transfer Temperature. J Am Chem Soc 2014; 136:16854-64. [DOI: 10.1021/ja508280n] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | | | - Diana Siretanu
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
| | - Rodica Ababei
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
- CNRS, ICMCB, UPR 9048, F-33600 Pessac, France
- Univ. Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | | | - Michael J. Shaw
- Department
of Chemistry, University of Southern Illinois at Edwardsville, Edwardsville, Illinois 62026, United States
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
| | - Corine Mathonière
- CNRS, ICMCB, UPR 9048, F-33600 Pessac, France
- Univ. Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | | |
Collapse
|
29
|
|
30
|
Schmidt SO, Kisslinger S, Würtele C, Bonnet S, Schindler S, Tuczek F. Iron(II) Complexes Supported by a Tetradentate Ligand Providing a Strained Equatorial Coordination Environment: Geometric and Electronic-Structural Implications. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
31
|
Lin YC, Hsu IJ, Hsieh HH, Lee JF, Chen JM, Lee JM, Wang Y. Spin Transition of [Fe(btr)3](ClO4)2Studied by X-ray Absorption Spectroscopy. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200600205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Milek M, Heinemann FW, Khusniyarov MM. Spin Crossover Meets Diarylethenes: Efficient Photoswitching of Magnetic Properties in Solution at Room Temperature. Inorg Chem 2013; 52:11585-92. [DOI: 10.1021/ic401960x] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Magdalena Milek
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen−Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen−Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Marat M. Khusniyarov
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen−Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| |
Collapse
|
33
|
Nihei M, Suzuki Y, Kimura N, Kera Y, Oshio H. Bidirectional Photomagnetic Conversions in a Spin-Crossover Complex with a Diarylethene Moiety. Chemistry 2013; 19:6946-9. [DOI: 10.1002/chem.201300767] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Indexed: 11/12/2022]
|
34
|
Chuang YC, Ho WL, Sheu CF, Lee GH, Wang Y. Crystal engineering from a 1D chain to a 3D coordination polymer accompanied by a dramatic change in magnetic properties. Chem Commun (Camb) 2013; 48:10769-71. [PMID: 23023531 DOI: 10.1039/c2cc35879d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique structural transformation in the crystalline state assisted by coordination substitution is induced during a dehydration process. A 1D chain coordination polymer is irreversibly converted to a 3D interpenetrated network accompanied by a change in magnetic properties from a paramagnetic material to a spin crossover system.
Collapse
Affiliation(s)
- Yu-Chun Chuang
- Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan
| | | | | | | | | |
Collapse
|
35
|
Thies S, Sell H, Bornholdt C, Schütt C, Köhler F, Tuczek F, Herges R. Light-driven coordination-induced spin-state switching: rational design of photodissociable ligands. Chemistry 2012; 18:16358-68. [PMID: 23090862 DOI: 10.1002/chem.201201698] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 08/29/2012] [Indexed: 11/10/2022]
Abstract
The bistability of spin states (e.g., spin crossover) in bulk materials is well investigated and understood. We recently extended spin-state switching to isolated molecules at room temperature (light-driven coordination-induced spin-state switching, or LD-CISSS). Whereas bistability and hysteresis in conventional spin-crossover materials are caused by cooperative effects in the crystal lattice, spin switching in LD-CISSS is achieved by reversibly changing the coordination number of a metal complex by means of a photochromic ligand that binds in one configuration but dissociates in the other form. We present mathematical proof that the maximum efficiency in property switching by such a photodissociable ligand (PDL) is only dependent on the ratio of the association constants of both configurations. Rational design by using DFT calculations was applied to develop a photoswitchable ligand with a high switching efficiency. The starting point was a nickel-porphyrin as the transition-metal complex and 3-phenylazopyridine as the photodissociable ligand. Calculations and experiments were performed in two iterative steps to find a substitution pattern at the phenylazopyridine ligand that provided optimum performance. Following this strategy, we synthesized an improved photodissociable ligand that binds to the Ni-porphyrin with an association constant that is 5.36 times higher in its trans form than in the cis form. The switching efficiency between the diamagnetic and paramagnetic state is efficient as well (72% paramagnetic Ni-porphyrin after irradiation at 365 nm, 32% paramagnetic species after irradiation at 440 nm). Potential applications arise from the fact that the LD-CISSS approach for the first time allows reversible switching of the magnetic susceptibility of a homogeneous solution. Photoswitchable contrast agents for magnetic resonance imaging and light-controlled magnetic levitation are conceivable applications.
Collapse
Affiliation(s)
- Steffen Thies
- Institut für Organische Chemie, Universität Kiel, Otto-Hahn-Platz 4, 24118 Kiel, Germany
| | | | | | | | | | | | | |
Collapse
|
36
|
Cirera J, Paesani F. Theoretical Prediction of Spin-Crossover Temperatures in Ligand-Driven Light-Induced Spin Change Systems. Inorg Chem 2012; 51:8194-201. [DOI: 10.1021/ic300750c] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jordi Cirera
- Department of Chemistry and Biochemistry, University
of California, San Diego, 9500 Gilman Drive, La Jolla, California
92093-0314, United States
| | - Francesco Paesani
- Department of Chemistry and Biochemistry, University
of California, San Diego, 9500 Gilman Drive, La Jolla, California
92093-0314, United States
| |
Collapse
|
37
|
|
38
|
Boillot ML, Zarembowitch J, Sour A. Ligand-Driven Light-Induced Spin Change (LD-LISC): A Promising Photomagnetic Effect. Top Curr Chem (Cham) 2012. [DOI: 10.1007/b95419] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
39
|
|
40
|
Bannwarth A, Schmidt SO, Peters G, Sönnichsen FD, Thimm W, Herges R, Tuczek F. FeIII Spin-Crossover Complexes with Photoisomerizable Ligands: Experimental and Theoretical Studies on the Ligand-Driven Light-Induced Spin Change Effect. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101227] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
A Supramolecular Protecting Group Strategy Introduced to the Organic Solid State: Enhanced Reactivity through Molecular Pedal Motion. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201106842] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
42
|
Elacqua E, Kaushik P, Groeneman RH, Sumrak JC, Bučar DK, MacGillivray LR. A Supramolecular Protecting Group Strategy Introduced to the Organic Solid State: Enhanced Reactivity through Molecular Pedal Motion. Angew Chem Int Ed Engl 2011; 51:1037-41. [DOI: 10.1002/anie.201106842] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Indexed: 11/12/2022]
|
43
|
Study on the spin-crossover transition in [Fe(cis-/trans-stpy)4(X)2] (stpy: styrylpyridine, X: NCS, NCBH3) under high pressure toward ligand-driven light-induced spin change. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
44
|
Affiliation(s)
- Markus Schütte
- a Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424, Potsdam, Germany
| | - Christa Stolle
- a Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424, Potsdam, Germany
| | - Dirk G. Kurth
- a Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424, Potsdam, Germany
| |
Collapse
|
45
|
Thies S, Sell H, Schütt C, Bornholdt C, Näther C, Tuczek F, Herges R. Light-induced spin change by photodissociable external ligands: a new principle for magnetic switching of molecules. J Am Chem Soc 2011; 133:16243-50. [PMID: 21888403 DOI: 10.1021/ja206812f] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Magnetic bistability in spin-crossover materials generally is a collective phenomenon that arises from the cooperative interaction of a large number of microscopic magnetic moments within the crystal lattice in the solid state. We now report on individual molecules in homogeneous solution that are switched between the diamagnetic and paramagnetic states at room temperature by light-driven coordination-induced spin-state switching (LD-CISSS). Switching of the coordination number (and concurrently of the spin state) was achieved by using Ni-porphyrin as a square-planar platform and azopyridines as photodissociable axial ligands. The square-planar Ni-porphyrin is diamagnetic (low-spin, S = 0), and all complexes with axial ligands are paramagnetic (high-spin, S = 1). Association constants were determined for all conceivable 1:1 and 1:2 porphyrin/azopyridine complexes. The binding constants of the trans azopyridines are larger than those of the corresponding cis isomers. Thus, upon irradiation with UV light (365 nm, trans → cis) and visible light (455 nm, cis → trans), switching of the magnetic properties was achieved. Upon substitution of the azopyridines at the 4- and 4'-positions with larger substituents, the difference in trans and cis association constants, and thus the switching efficiency, was increased. A photoinduced, reversible switching between 20 and 68% paramagnetic Ni species in solution was achieved with isopropyl substituents at room temperature.
Collapse
Affiliation(s)
- Steffen Thies
- Otto-Diels-Institut für Organische Chemie, Christian-Albrechts-Universität, Otto-Hahn-Platz 4, D-24098 Kiel, Germany
| | | | | | | | | | | | | |
Collapse
|
46
|
Quantum-chemical modeling of metal coordination compounds with photoswitchable magnetic properties controlled by ligand rearrangements. THEOR EXP CHEM+ 2011. [DOI: 10.1007/s11237-011-9167-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
47
|
Venkataramani S, Jana U, Dommaschk M, Sönnichsen FD, Tuczek F, Herges R. Magnetic bistability of molecules in homogeneous solution at room temperature. Science 2011; 331:445-8. [PMID: 21273483 DOI: 10.1126/science.1201180] [Citation(s) in RCA: 419] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Magnetic bistability, as manifested in the magnetization of ferromagnetic materials or spin crossover in transition metal complexes, has essentially been restricted to either bulk materials or to very low temperatures. We now present a molecular spin switch that is bistable at room temperature in homogeneous solution. Irradiation of a carefully designed nickel complex with blue-green light (500 nanometers) induces coordination of a tethered pyridine ligand and concomitant electronic rearrangement from a diamagnetic to a paramagnetic state in up to 75% of the ensemble. The process is fully reversible on irradiation with violet-blue light (435 nanometers). No fatigue or degradation is observed after several thousand cycles at room temperature under air. Preliminary data show promise for applications in magnetic resonance imaging.
Collapse
Affiliation(s)
- S Venkataramani
- Otto-Diels-Institute for Organic Chemistry, University of Kiel, 24118-Kiel, Germany
| | | | | | | | | | | |
Collapse
|
48
|
Hasegawa Y, Takahashi K, Kume S, Nishihara H. Complete solid state photoisomerization of bis(dipyrazolylstyrylpyridine)iron(ii) to change magnetic properties. Chem Commun (Camb) 2011; 47:6846-8. [DOI: 10.1039/c1cc11850a] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Photothermal studies of the room temperature photo-induced spin state change in the Fe(III)(salten)(mepepy) complex. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.06.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
50
|
Daku LML, Linares J, Boillot ML. Ab initio static and molecular dynamics study of the absorption spectra of the 4-styrylpyridine photoswitch in its cis and trans forms. Phys Chem Chem Phys 2010; 12:6107-23. [DOI: 10.1039/b920850j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|