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Kiehl J, Hochdörffer T, Carrella LM, Schünemann V, Nygaard MH, Overgaard J, Rentschler E. Pronounced Magnetic Bistability in Highly Cooperative Mononuclear [Fe(L npdtz) 2(NCX) 2] Complexes. Inorg Chem 2022; 61:3141-3151. [PMID: 35142508 DOI: 10.1021/acs.inorgchem.1c03491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular materials that exhibit stimuli-responsive bistability are promising candidates for the development of molecular switches and sensors. We herein report on the coexistence of a wide thermal hysteretic spin crossover (SCO) effect and a thermally inducible metastable high-spin state at low temperatures achieved with the two new complexes [FeII(Lnpdtz)2(NCX)2] (X = S; Se), with Lnpdtz being (2-naphthyl-5-pyridyl-1,2,4-thiadiazole) and X = S (1) and Se (2). Pronounced π-π-stacking of the aromatic side residues of the ligands enables strong intermolecular interactions, leading to abrupt SCO properties and broad magnetic hysteresis of 10 K for X = S and 58 K for X = Se. In this paper, we also present the pressure-induced spin-state switching around 0.8 GPa. A pronounced thermally induced excited spin state trapping (TIESST effect) is observed for the highly cooperative SCO compounds, which was experimentally followed by low-temperature single crystal structure analysis (20 K) and temperature-dependent Mössbauer spectroscopy.
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Affiliation(s)
- Jonathan Kiehl
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Tim Hochdörffer
- Department of Physics, Technische Universität Kaiserslautern, Erwin-Schroedinger-Str. 46, D-67663 Kaiserslautern, Germany
| | - Luca M Carrella
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Volker Schünemann
- Department of Physics, Technische Universität Kaiserslautern, Erwin-Schroedinger-Str. 46, D-67663 Kaiserslautern, Germany
| | - Mathilde H Nygaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus, Denmark
| | - Jacob Overgaard
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus, Denmark
| | - Eva Rentschler
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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2
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Suryadevara N, Pausch A, Moreno-Pineda E, Mizuno A, Bürck J, Baksi A, Hochdörffer T, Šalitroš I, Ulrich AS, Kappes MM, Schünemann V, Klopper W, Ruben M. Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes. Chemistry 2021; 27:15171-15179. [PMID: 34165834 PMCID: PMC8597157 DOI: 10.1002/chem.202101432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 11/28/2022]
Abstract
Chiral magnetic materials are proposed for applications in second‐order non‐linear optics, magneto‐chiral dichroism, among others. Recently, we have reported a set of tetra‐nuclear Fe(II) grid complex conformers with general formula C/S‐[Fe4L4]8+ (L: 2,6‐bis(6‐(pyrazol‐1‐yl)pyridin‐2‐yl)‐1,5‐dihydrobenzo[1,2‐d : 4,5‐d′]diimidazole). In the grid complexes, isomerism emerges from tautomerism and conformational isomerism of the ligand L, and the S‐type grid complex is chiral, which originates from different non‐centrosymmetric spatial organization of the trans type ligand around the Fe(II) center. However, the selective preparation of an enantiomerically pure grid complex in a controlled manner is difficult due to spontaneous self‐assembly. To achieve the pre‐synthesis programmable resolution of Fe(II) grid complexes, we designed and synthesized two novel intrinsically chiral ligands by appending chiral moieties to the parent ligand. The complexation of these chiral ligands with Fe(II) salt resulted in the formation of enantiomerically pure Fe(II) grid complexes, as unambiguously elucidated by CD and XRD studies. The enantiomeric complexes exhibited similar gradual and half‐complete thermal and photo‐induced SCO characteristics. The good agreement between the experimentally obtained and calculated CD spectra further supports the enantiomeric purity of the complexes and even the magnetic studies. The chiral resolution of Fe(II)‐ [2×2] grid complexes reported in this study, for the first time, might enable the fabrication of magneto‐chiral molecular devices.
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Affiliation(s)
- Nithin Suryadevara
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ansgar Pausch
- Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Eufemio Moreno-Pineda
- Depto. de Química-Física, Escuela de Química Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, 0824, Panamá, Panamá
| | - Asato Mizuno
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Jochen Bürck
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ananya Baksi
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Tim Hochdörffer
- Fachbereich Physik, Technische Universitat Kaiserslautern (TUK), Erwin-Schrödinger-Strasse 46, 67663, Kaiserslautern, Germany
| | - Ivan Šalitroš
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia.,Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 61200, Brno, Czech Republic.,Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Anne S Ulrich
- Institute of Biological Interfaces (IBG-2), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Manfred M Kappes
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Volker Schünemann
- Fachbereich Physik, Technische Universitat Kaiserslautern (TUK), Erwin-Schrödinger-Strasse 46, 67663, Kaiserslautern, Germany
| | - Wim Klopper
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Mario Ruben
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Centre Européen de Sciences Quantiques (CESQ), Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard Monge, BP 70028, 67083, Strasbourg Cedex, France.,Institute for Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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Wolny JA, Hochdörffer T, Sadashivaiah S, Auerbach H, Jenni K, Scherthan L, Li AM, von Malotki C, Wille HC, Rentschler E, Schünemann V. Vibrational properties of 1D- and 3D polynuclear spin crossover Fe(II) urea-triazoles polymer chains and quantification of intrachain cooperativity. J Phys Condens Matter 2020; 33:034004. [PMID: 32679572 DOI: 10.1088/1361-648x/aba71d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
The vibrational dynamics of the iron centres in 1D and 3D spin crossover Fe(II) 4-alkyl-urea triazole chains have been investigated by synchrotron based nuclear inelastic scattering. For the 1D system, the partial density of phonon states has been modelled with density functional theory methods. Furthermore, spin dependent iron ligand distances and vibrational modes were obtained. The previously introduced intramolecular cooperativity parameterHcoop(Rackwitzet al, Phys. Chem. Chem. Phys. 2013,15,15450) has been determined to -31 kJ mol-1for [Fe(n-Prtrzu)3(tosylate)2] and to +27 kJ mol-1for [Fe(n-Prtrzu)3(BF4)2]. The change of sign inHcoopis in line with the incomplete and gradual character of the spin transition for the former as well as with the sharp transition for the latter reported previously (Rentschler and von Malotki, Inorg. Chem., Act. 2008,361,3646). This effect can be ascribed to the networks of intramolecular interactions in the second coordination sphere of the polymer chains, depending on the spin state of the iron centres. In addition, we observe a decreased coupling and coherence when comparing the system which displays a sharp spin transition to the system with an incomplete soft transition by analyzing molecular modes involving a movement of the iron centres.
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Affiliation(s)
- Juliusz A Wolny
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Tim Hochdörffer
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Sakshath Sadashivaiah
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Hendrik Auerbach
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Kevin Jenni
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Lena Scherthan
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
| | - Ai-Min Li
- Institute of Inorganic and Analytical of Chemistry, University of Mainz, Mainz, Germany
| | - Christian von Malotki
- Institute of Inorganic and Analytical of Chemistry, University of Mainz, Mainz, Germany
| | | | - Eva Rentschler
- Institute of Inorganic and Analytical of Chemistry, University of Mainz, Mainz, Germany
| | - Volker Schünemann
- Department of Physics, Technische Universität Kaiserslautern, Kaiserslautern, Germany
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Scherthan L, Pfleger RF, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Alp EE, Anson CE, Diller R, Powell AK, Schünemann V. Frontispiz: Untersuchung von Schwingungen in Bezug auf Spin‐Phonon‐Kopplung in Einzelmolekülmagneten mittels nuklearer inelastischer Streuung am
161
Dy‐Kern. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202082361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Rouven F. Pfleger
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
| | - Hendrik Auerbach
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Tim Hochdörffer
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Juliusz A. Wolny
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Wenli Bi
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Physics University of Alabama at Birmingham Birmingham AL 35294 USA
| | - Jiyong Zhao
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
| | - Rolf Diller
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Annie K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
- Institute of Nanotechnology Karlsruhe Institute of Technology 76021 Karlsruhe Deutschland
| | - Volker Schünemann
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
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Scherthan L, Pfleger RF, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Alp EE, Anson CE, Diller R, Powell AK, Schünemann V. Exploring the Vibrational Side of Spin-Phonon Coupling in Single-Molecule Magnets via 161 Dy Nuclear Resonance Vibrational Spectroscopy. Angew Chem Int Ed Engl 2020; 59:8818-8822. [PMID: 32181552 PMCID: PMC7317570 DOI: 10.1002/anie.201914728] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/14/2020] [Indexed: 11/06/2022]
Abstract
Synchrotron-based nuclear resonance vibrational spectroscopy (NRVS) using the Mössbauer isotope 161 Dy has been employed for the first time to study the vibrational properties of a single-molecule magnet (SMM) incorporating DyIII , namely [Dy(Cy3 PO)2 (H2 O)5 ]Br3 ⋅2 (Cy3 PO)⋅2 H2 O ⋅2 EtOH. The experimental partial phonon density of states (pDOS), which includes all vibrational modes involving a displacement of the DyIII ion, was reproduced by means of simulations using density functional theory (DFT), enabling the assignment of all intramolecular vibrational modes. This study proves that 161 Dy NRVS is a powerful experimental tool with significant potential to help to clarify the role of phonons in SMMs.
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Affiliation(s)
- Lena Scherthan
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Rouven F. Pfleger
- Institute of Inorganic ChemistryKarlsruhe Institute of TechnologyEngesserstr. 1576131KarlsruheGermany
| | - Hendrik Auerbach
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Tim Hochdörffer
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Juliusz A. Wolny
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Wenli Bi
- Advanced Photon SourceArgonne National Laboratory9700 South Cass AvenueArgonneIL60439USA
- Department of PhysicsUniversity of Alabama at BirminghamBirminghamAL35294USA
| | - Jiyong Zhao
- Advanced Photon SourceArgonne National Laboratory9700 South Cass AvenueArgonneIL60439USA
| | - Michael Y. Hu
- Advanced Photon SourceArgonne National Laboratory9700 South Cass AvenueArgonneIL60439USA
| | - E. Ercan Alp
- Advanced Photon SourceArgonne National Laboratory9700 South Cass AvenueArgonneIL60439USA
| | - Christopher E. Anson
- Institute of Inorganic ChemistryKarlsruhe Institute of TechnologyEngesserstr. 1576131KarlsruheGermany
| | - Rolf Diller
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Annie K. Powell
- Institute of Inorganic ChemistryKarlsruhe Institute of TechnologyEngesserstr. 1576131KarlsruheGermany
- Institute of NanotechnologyKarlsruhe Institute of Technology76021KarlsruheGermany
| | - Volker Schünemann
- Department of PhysicsTechnische Universität KaiserslauternErwin-Schrödinger-Str. 4667663KaiserslauternGermany
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Scherthan L, Pfleger RF, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Alp EE, Anson CE, Diller R, Powell AK, Schünemann V. Frontispiece: Exploring the Vibrational Side of Spin‐Phonon Coupling in Single‐Molecule Magnets via
161
Dy Nuclear Resonance Vibrational Spectroscopy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202082361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Rouven F. Pfleger
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Hendrik Auerbach
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Tim Hochdörffer
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Juliusz A. Wolny
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Wenli Bi
- Advanced Photon Source Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
- Department of Physics University of Alabama at Birmingham Birmingham AL 35294 USA
| | - Jiyong Zhao
- Advanced Photon Source Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source Argonne National Laboratory 9700 South Cass Avenue Argonne IL 60439 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Rolf Diller
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
- Institute of Nanotechnology Karlsruhe Institute of Technology 76021 Karlsruhe Germany
| | - Volker Schünemann
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
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Scherthan L, Pfleger RF, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Alp EE, Anson CE, Diller R, Powell AK, Schünemann V. Untersuchung von Schwingungen in Bezug auf Spin‐Phonon‐Kopplung in Einzelmolekülmagneten mittels nuklearer inelastischer Streuung am
161
Dy‐Kern. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Rouven F. Pfleger
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
| | - Hendrik Auerbach
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Tim Hochdörffer
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Juliusz A. Wolny
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Wenli Bi
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Physics University of Alabama at Birmingham Birmingham AL 35294 USA
| | - Jiyong Zhao
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
| | - Rolf Diller
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
| | - Annie K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Deutschland
- Institute of Nanotechnology Karlsruhe Institute of Technology 76021 Karlsruhe Deutschland
| | - Volker Schünemann
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Deutschland
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Hochdörffer T, Chumakov AI, Wille HC, Schünemann V, Wolny JA. Vibrational properties and cooperativity of the 3D spin crossover network [Fe(pyrazine)][Pt(CN) 4]. Dalton Trans 2019; 48:15625-15634. [PMID: 31418431 DOI: 10.1039/c9dt02139f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nuclear inelastic scattering of synchrotron radiation has been used to determine the phonon density of vibrational states (pDOS) for the high-spin and low-spin phases of the hydrated and dehydrated isomer of the spin crossover polymer [Fe(pyrazine)][Pt(CN)4]. Density functional theory calculations have been performed for molecular models of the 3D polymeric system. The models contain 15 Fe(ii)/Zn(ii) centres and allowed the assignment of the observed bands to the corresponding vibrational modes. Thermodynamic parameters like the mean force constant and the vibrational entropy but also sound velocities of the molecular lattices in both spin states have been derived from the pDOS. Modelling of the low-spin and high-spin centres in the environment or matrix of different spins has revealed the enthalpic and entropic components of the intramolecular cooperativity. In contrast to the 1D spin crossover systems (Rackwitz, et al., Phys. Chem. Chem. Phys., 2013, 15, 15450) based on the rigid 1,2,4-triazole derivatives the distortion of the low-spin iron Fe(ii) centre by the matrix of high-spin Fe(ii) (modelled as Zn(ii)) occurs only in two dimensions, defined by the [M(CN)4]2- sheets, rather than concerning all six Fe-N bonds, as in 1D systems. The enthalpic intramolecular cooperativity has been determined to be 15 kJ mol-1 which is lower than that in 1D systems (20-30 kJ mol-1). Yet, the entropic contribution stabilizes the low-spin state in a low-spin matrix, a behaviour which is opposite to what was found for the 1D systems.
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Affiliation(s)
- Tim Hochdörffer
- Department of Physics, Technische Universität Kaiserslautern, Erwin Schrödinger Str. 46, 67663 Kaiserslautern, Germany.
| | | | | | - Volker Schünemann
- Department of Physics, Technische Universität Kaiserslautern, Erwin Schrödinger Str. 46, 67663 Kaiserslautern, Germany.
| | - Juliusz A Wolny
- Department of Physics, Technische Universität Kaiserslautern, Erwin Schrödinger Str. 46, 67663 Kaiserslautern, Germany.
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Berdiell IC, Hochdörffer T, Desplanches C, Kulmaczewski R, Shahid N, Wolny JA, Warriner SL, Cespedes O, Schünemann V, Chastanet G, Halcrow MA. Supramolecular Iron Metallocubanes Exhibiting Site-Selective Thermal and Light-Induced Spin-Crossover. J Am Chem Soc 2019; 141:18759-18770. [DOI: 10.1021/jacs.9b08862] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Izar Capel Berdiell
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Tim Hochdörffer
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | | | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Namrah Shahid
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Juliusz A. Wolny
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | - Stuart L. Warriner
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Oscar Cespedes
- School of Physics and Astronomy, EC Stoner Building, University of Leeds, Leeds LS2 9JT, U.K
| | - Volker Schünemann
- Department of Physics, Technical University of Kaiserslautern, Erwin Schrödinger Straße 46, D-67663 Kaiserslautern, Germany
| | | | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
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Scherthan L, Schmidt SFM, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Toellner T, Alp EE, Brown DE, Anson CE, Powell AK, Schünemann V. Rücktitelbild: 161
Dy Time-Domain Synchrotron Mössbauer Spectroscopy for Investigating Single-Molecule Magnets Incorporating Dy Ions (Angew. Chem. 11/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Sebastian F. M. Schmidt
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
| | - Hendrik Auerbach
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Tim Hochdörffer
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Juliusz A. Wolny
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Wenli Bi
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Geology; University of Illinois at Urbana-Champaign; Urbana IL 61801 USA
| | - Jiyong Zhao
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Tom Toellner
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Dennis E. Brown
- Department of Physics; Northern Illinois University; 1425 W. Lincoln Hwy. DeKalb IL 60115-2828 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
- Institute of Nanotechnology; Karlsruhe Institute of Technology; 76131 Karlsruhe Germany
| | - Volker Schünemann
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
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Scherthan L, Schmidt SFM, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Toellner T, Alp EE, Brown DE, Anson CE, Powell AK, Schünemann V. 161
Dy Time‐Domain Synchrotron Mössbauer Spectroscopy for Investigating Single‐Molecule Magnets Incorporating Dy Ions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Sebastian F. M. Schmidt
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Hendrik Auerbach
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Tim Hochdörffer
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Juliusz A. Wolny
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Wenli Bi
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Geology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Jiyong Zhao
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Tom Toellner
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Dennis E. Brown
- Department of Physics Northern Illinois University 1425 W. Lincoln Hwy. DeKalb IL 60115-2828 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
- Institute of Nanotechnology Karlsruhe Institute of Technology 76131 Karlsruhe Germany
| | - Volker Schünemann
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
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12
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Scherthan L, Schmidt SFM, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Toellner T, Alp EE, Brown DE, Anson CE, Powell AK, Schünemann V. Back Cover: 161
Dy Time-Domain Synchrotron Mössbauer Spectroscopy for Investigating Single-Molecule Magnets Incorporating Dy Ions (Angew. Chem. Int. Ed. 11/2019). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/anie.201900407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Sebastian F. M. Schmidt
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
| | - Hendrik Auerbach
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Tim Hochdörffer
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Juliusz A. Wolny
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Wenli Bi
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Geology; University of Illinois at Urbana-Champaign; Urbana IL 61801 USA
| | - Jiyong Zhao
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Tom Toellner
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source; Argonne National Laboratory; 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Dennis E. Brown
- Department of Physics; Northern Illinois University; 1425 W. Lincoln Hwy. DeKalb IL 60115-2828 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr. 15 76131 Karlsruhe Germany
- Institute of Nanotechnology; Karlsruhe Institute of Technology; 76131 Karlsruhe Germany
| | - Volker Schünemann
- Department of Physics; Technische Universität Kaiserslautern; Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
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Scherthan L, Schmidt SFM, Auerbach H, Hochdörffer T, Wolny JA, Bi W, Zhao J, Hu MY, Toellner T, Alp EE, Brown DE, Anson CE, Powell AK, Schünemann V. 161
Dy Time‐Domain Synchrotron Mössbauer Spectroscopy for Investigating Single‐Molecule Magnets Incorporating Dy Ions. Angew Chem Int Ed Engl 2019; 58:3444-3449. [DOI: 10.1002/anie.201810505] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/23/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Lena Scherthan
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Sebastian F. M. Schmidt
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Hendrik Auerbach
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Tim Hochdörffer
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Juliusz A. Wolny
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
| | - Wenli Bi
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
- Department of Geology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Jiyong Zhao
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Michael Y. Hu
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Tom Toellner
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - E. Ercan Alp
- Advanced Photon Source Argonne National Laboratory 9700 S. Cass Avenue Argonne IL 60439 USA
| | - Dennis E. Brown
- Department of Physics Northern Illinois University 1425 W. Lincoln Hwy. DeKalb IL 60115-2828 USA
| | - Christopher E. Anson
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstr. 15 76131 Karlsruhe Germany
- Institute of Nanotechnology Karlsruhe Institute of Technology 76131 Karlsruhe Germany
| | - Volker Schünemann
- Department of Physics Technische Universität Kaiserslautern Erwin-Schrödinger-Str. 46 67663 Kaiserslautern Germany
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