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Iron(II) Mediated Supramolecular Architectures with Schiff Bases and Their Spin-Crossover Properties. Molecules 2023; 28:molecules28031012. [PMID: 36770685 PMCID: PMC9919814 DOI: 10.3390/molecules28031012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Supramolecular architectures, which are formed through the combination of inorganic metal cations and organic ligands by self-assembly, are one of the techniques in modern chemical science. This kind of multi-nuclear system in various dimensionalities can be implemented in various applications such as sensing, storage/cargo, display and molecular switching. Iron(II) mediated spin-crossover (SCO) supramolecular architectures with Schiff bases have attracted the attention of many investigators due to their structural novelty as well as their potential application possibilities. In this paper, we review a number of supramolecular SCO architectures of iron(II) with Schiff base ligands exhibiting varying geometrical possibilities. The structural and SCO behavior of these complexes are also discussed in detail.
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2
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Spin state of two mononuclear iron(II) complexes of a tridentate bis(imino)pyridine N-donor ligand: Experimental and theoretical investigations. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Craze AR, Zenno H, Pfrunder MC, McMurtrie JC, Hayami S, Clegg JK, Li F. Supramolecular Modulation of Spin Crossover in an Fe(II) Dinuclear Triple Helicate. Inorg Chem 2021; 60:6731-6738. [DOI: 10.1021/acs.inorgchem.1c00553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander R. Craze
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Hikaru Zenno
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
| | - Michael C. Pfrunder
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George St, Brisbane, QLD 4001, Australia
| | - John C. McMurtrie
- School of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George St, Brisbane, QLD 4001, Australia
| | - Shinya Hayami
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Feng Li
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
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4
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Wilson BH, Kruger PE. Modulation of Crystal Packing via the Tuning of Peripheral Functionality for a Family of Dinuclear Mesocates. Chem Asian J 2020; 15:2716-2723. [PMID: 32634270 DOI: 10.1002/asia.202000686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/03/2020] [Indexed: 11/11/2022]
Abstract
A family of four novel pyrazinyl-hydrazone based ligands have been synthesized with differing functionality at the 5-position of the central aromatic ring. Previous work has shown such ligands to form dinuclear triple mesocates which pack to form hexagonal channels capable of gas sorption. The effect of the peripheral functionality of the ligand on the crystal packing was investigated by synthesizing complexes 1 to 4 which feature amino, bromo, iodo and methoxy substituents respectively. Complexes 1 to 3 crystallized in the same hexagonal space group P63 /m and featured 1D channels. However, on closer inspection while the packing of 1 is mediated by hydrogen bonding interactions, the packing of complexes 2 and 3 are not, due to a subtlety different π-π stacking interaction enforced by the halogen substituent. The more bulky nature of the methoxy substituent of 4 results in the complex crystallizing in the triclinic space group P-1, featuring an entirely different crystal packing.
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Affiliation(s)
- Benjamin H Wilson
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Physical and Chemical Sciences, University of Canterbury, Christchurch, 8041, New Zealand.,Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario, N9B 3P4, Canada
| | - Paul E Kruger
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Physical and Chemical Sciences, University of Canterbury, Christchurch, 8041, New Zealand
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5
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Howard-Smith KJ, Craze AR, Zenno H, Yagyu J, Hayami S, Li F. A large dinuclear Fe(ii) triple helicate demonstrating a two-step spin crossover. Chem Commun (Camb) 2020; 56:8838-8841. [PMID: 32632428 DOI: 10.1039/d0cc03708g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Reported herein, the synthesis as well as the structural and magnetic characterisation of the largest reported dinuclear Fe(ii) triple helicate system to exhibit spin crossover-and also a rare example of a 273° helical twist using aromatic spacers-is presented, with exploration of the two-step spin-transition observed.
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Affiliation(s)
- Kyle J Howard-Smith
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
| | - Alexander R Craze
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
| | - Hikaru Zenno
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Japan
| | - Junya Yagyu
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Japan
| | - Shinya Hayami
- Department of Chemistry, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Japan
| | - Feng Li
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
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6
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Tanaka T, Sunatsuki Y, Suzuki T. Iron(II) Complexes Having Dinuclear Mesocate or Octanuclear Bicapped Trigonal Prism Structures Dependent on the Rigidity of Bis(bidentate) Schiff Base Ligands Containing Imidazole Groups. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsubasa Tanaka
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Yukinari Sunatsuki
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Takayoshi Suzuki
- Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
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7
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Percástegui EG, Mosquera J, Ronson TK, Plajer AJ, Kieffer M, Nitschke JR. Waterproof architectures through subcomponent self-assembly. Chem Sci 2018; 10:2006-2018. [PMID: 30881630 PMCID: PMC6385555 DOI: 10.1039/c8sc05085f] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/12/2018] [Indexed: 11/21/2022] Open
Abstract
Construction of metal–organic containers that are soluble and stable in water can be challenging – we present diverse strategies that allow the synthesis of kinetically robust water-soluble architectures via subcomponent self-assembly.
Metal–organic containers are readily prepared through self-assembly, but achieving solubility and stability in water remains challenging due to ligand insolubility and the reversible nature of the self-assembly process. Here we have developed conditions for preparing a broad range of architectures that are both soluble and kinetically stable in water through metal(ii)-templated (MII = CoII, NiII, ZnII, CdII) subcomponent self-assembly. Although these structures are composed of hydrophobic and poorly-soluble subcomponents, sulfate counterions render them water-soluble, and they remain intact indefinitely in aqueous solution. Two strategies are presented. Firstly, stability increased with metal–ligand bond strength, maximising when NiII was used as a template. Architectures that disassembled when CoII, ZnII and CdII templates were employed could be directly prepared from NiSO4 in water. Secondly, a higher density of connections between metals and ligands within a structure, considering both ligand topicity and degree of metal chelation, led to increased stability. When tritopic amines were used to build highly chelating ligands around ZnII and CdII templates, cryptate-like water-soluble structures were formed using these labile ions. Our synthetic platform provides a unified understanding of the elements of aqueous stability, allowing predictions of the stability of metal–organic cages that have not yet been prepared.
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Affiliation(s)
| | - Jesús Mosquera
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , UK .
| | - Tanya K Ronson
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , UK .
| | - Alex J Plajer
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , UK .
| | - Marion Kieffer
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , UK .
| | - Jonathan R Nitschke
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , UK .
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8
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9
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Miller TF, Holloway LR, Nye PP, Lyon Y, Beran GJO, Harman WH, Julian RR, Hooley RJ. Small Structural Variations Have Large Effects on the Assembly Properties and Spin State of Room Temperature High Spin Fe(II) Iminopyridine Cages. Inorg Chem 2018; 57:13386-13396. [DOI: 10.1021/acs.inorgchem.8b01973] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tabitha F. Miller
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Lauren R. Holloway
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Phoebe P. Nye
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Yana Lyon
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Gregory J. O. Beran
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - W. Hill Harman
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Ryan R. Julian
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
| | - Richard J. Hooley
- Department of Chemistry, University of California—Riverside, Riverside, California 92521, United States
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10
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Archer RJ, Scott HS, Polson MIJ, Williamson BE, Mathonière C, Rouzières M, Clérac R, Kruger PE. Varied spin crossover behaviour in a family of dinuclear Fe(ii) triple helicate complexes. Dalton Trans 2018; 47:7965-7974. [PMID: 29862409 DOI: 10.1039/c8dt01567h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dinuclear triple-helicate complexes of the formula [Fe2L3](BF4)4·solv (solv = CH3CN, CHCl3, H2O) have been synthesised and structurally characterised. The bis-bidentate ligands, L, present either strong-field 2-pyridylimine (1) or weaker-field 2-imidazolylimine (2) and 4-imidazolylimine (3) coordination spheres about Fe(ii) centres in an octahedral geometry. Whereas 1 is pervasively diamagnetic, spin crossover (SCO) behaviour is observed in 2 and 3 and has been studied using variable-temperature structural, UV-visible spectroscopic, magnetic and photo-magnetic techniques. Variable-temperature (1.8-400 K) magnetic-susceptibility measurements reveal the T1/2 values of 2 and 3 to be strongly dependent upon the solvent and degree of solvation. Photomagnetic studies at 10 K under white-light irradiation revealed an inefficient photo-induced SCO in 2, but full switching in 3.
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Affiliation(s)
- Rosanna J Archer
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
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11
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Scott HS, Staniland RW, Kruger PE. Spin crossover in homoleptic Fe(II) imidazolylimine complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Struch N, Topić F, Schnakenburg G, Rissanen K, Lützen A. Electron-Deficient Pyridylimines: Versatile Building Blocks for Functional Metallosupramolecular Chemistry. Inorg Chem 2017; 57:241-250. [DOI: 10.1021/acs.inorgchem.7b02412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Niklas Struch
- Kekulé-Institut
für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany
| | - Filip Topić
- University of Jyväskylä, Department of
Chemistry, Nanoscience Center, P.O. Box
35, 40014 Jyväskylä, Finland
| | - Gregor Schnakenburg
- Institut
für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany
| | - Kari Rissanen
- University of Jyväskylä, Department of
Chemistry, Nanoscience Center, P.O. Box
35, 40014 Jyväskylä, Finland
| | - Arne Lützen
- Kekulé-Institut
für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany
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13
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McConnell AJ, Aitchison CM, Grommet AB, Nitschke JR. Subcomponent Exchange Transforms an Fe II4L 4 Cage from High- to Low-Spin, Switching Guest Release in a Two-Cage System. J Am Chem Soc 2017; 139:6294-6297. [PMID: 28426930 PMCID: PMC5537689 DOI: 10.1021/jacs.7b01478] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
![]()
Subcomponent
exchange transformed new high-spin FeII4L4 cage 1 into previously-reported
low-spin FeII4L4 cage 2: 2-formyl-6-methylpyridine was ejected in favor of the less sterically
hindered 2-formylpyridine, with concomitant high- to low-spin transition
of the cage’s FeII centers. High-spin 1 also reacted more readily with electron-rich anilines than 2, enabling the design of a system consisting of two cages
that could release their guests in response to combinations of different
stimuli. The addition of p-anisidine to a mixture
of high-spin 1 and previously-reported low-spin FeII4L6 cage 3 resulted in
the destruction of 1 and the release of its guest. However,
initial addition of 2-formylpyridine to an identical mixture of 1 and 3 resulted in the transformation of 1 into 2; added p-anisidine
then reacted preferentially with 3 releasing its guest.
The addition of 2-formylpyridine thus modulated the system’s
behavior, fundamentally altering its response to the subsequent signal p-anisidine.
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Affiliation(s)
- Anna J McConnell
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Catherine M Aitchison
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Angela B Grommet
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom
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14
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Darawsheh MD, Barrios LA, Roubeau O, Teat SJ, Aromí G. Guest-tuned spin crossover in flexible supramolecular assemblies templated by a halide (Cl−, Br− or I−). Chem Commun (Camb) 2017; 53:569-572. [DOI: 10.1039/c6cc08906b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A supramolecular dimer of spin-crossover [FeL3]2+ complexes, L, being a polyheterocyclic ligand, encapsulates halides to form [X@[FeL3]2]3+ cations with tunable magnetic properties.
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Affiliation(s)
- M. D. Darawsheh
- Departament de Química Inorgànica and IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - L. A. Barrios
- Departament de Química Inorgànica and IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - O. Roubeau
- Instituto de Ciencia de Materiales de Aragón (ICMA)
- CSIC and Universidad de Zaragoza
- Zaragoza
- Spain
| | - S. J. Teat
- Advanced Light Source
- Berkeley Laboratory
- Berkeley
- USA
| | - G. Aromí
- Departament de Química Inorgànica and IN2UB
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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15
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Darawsheh M, Barrios LA, Roubeau O, Teat SJ, Aromí G. Guest-, Light- and Thermally-Modulated Spin Crossover in [FeII2] Supramolecular Helicates. Chemistry 2016; 22:8635-45. [DOI: 10.1002/chem.201601080] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Mohanad Darawsheh
- Departement de Inorgánica; Universitat de Barcelona; Diagonal 645 08028 Barcelona Spain
| | - Leoni A. Barrios
- Departement de Inorgánica; Universitat de Barcelona; Diagonal 645 08028 Barcelona Spain
| | - Olivier Roubeau
- Instituto de Ciencia de Materiales de Aragón (ICMA); CSIC and Universidad de Zaragoza; Plaza San Francisco s/n 50009 Zaragoza Spain
| | - Simon J. Teat
- Advanced Light Source; Berkeley Laboratory; 1 Cyclotron Road Berkeley California 94720 USA
| | - Guillem Aromí
- Departement de Inorgánica; Universitat de Barcelona; Diagonal 645 08028 Barcelona Spain
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