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Rodríguez-Jiménez S, Bennington MS, Akbarinejad A, Tay EJ, Chan EWC, Wan Z, Abudayyeh AM, Baek P, Feltham HLC, Barker D, Gordon KC, Travas-Sejdic J, Brooker S. Electroactive Metal Complexes Covalently Attached to Conductive PEDOT Films: A Spectroelectrochemical Study. ACS Appl Mater Interfaces 2021; 13:1301-1313. [PMID: 33351602 DOI: 10.1021/acsami.0c16317] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The successful covalent attachment, via copper(I)-catalyzed azide alkyne cycloaddition (CuAAC), of alkyne-functionalized nickel(II) and copper(II) macrocyclic complexes onto azide (N3)-functionalized poly(3,4-ethylenedioxythiophene) (PEDOT) films on ITO-coated glass electrodes is reported. To investigate the surface attachment of the selected metal complexes, which are analogues of the cobalt-based complex previously reported to be a molecular catalyst for hydrogen evolution, first, three different PEDOT films were formed by electropolymerization of pure PEDOT or pure N3-PEDOT, and last, 1:2N3-PEDOT:PEDOT were formed by co-polymerizing a 1:4 mixture of N3-EDOT:EDOT monomers. The successful surface immobilization of the complexes on the latter two azide-functionalized films, by CuAAC, was confirmed by X-ray photoelectron spectroscopy (XPS) and electrochemistry as well as by UV-vis-NIR and resonance Raman spectroelectrochemistry. The ratio between the N3 groups, and hence, the number of surface-attached metal complexes after CuAAC functionalization, in pristine N3-PEDOT versus 1:2N3-PEDOT:PEDOT is expected to be 3:1 and seen to be 2.86:1 with a calculated surface coverage of 3.28 ± 1.04 and 1.15 ± 0.09 nmol/cm2, respectively. The conversion, to the metal complex attached films, was lower for the N3-PEDOT films (Ni 74%, Cu 76%) than for the copolymer 1:2N3-PEDOT:PEDOT films (Ni 83%, Cu 91%) due to the former being more sterically congested. The Raman and UV-vis-NIR results were simulated using density functional theory (DFT) and time-dependent DFT (TD-DFT), respectively, and showed good agreement with the experimental data. Importantly, the spectroelectrochemical behavior of both anchored metal complexes is analogous to that of the free metal complexes in solution. This proves that PEDOT films are promising conducting scaffolds for the covalent immobilization of metal complexes, as the existing electrochromic features of the complexes are preserved on immobilization, which is important for applications in electrocatalytic proton and carbon dioxide reduction, optoelectronics, and sensing.
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Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Michael S Bennington
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Alireza Akbarinejad
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Elliot J Tay
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Eddie Wai Chi Chan
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Ziyao Wan
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Abdullah M Abudayyeh
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Paul Baek
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Humphrey L C Feltham
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - David Barker
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Keith C Gordon
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Jadranka Travas-Sejdic
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
- Polymer Biointerface Centre and School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand
| | - Sally Brooker
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
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Abstract
Square planar 1, square pyramidal 2 and trigonal bipyramidal 3 copper complexes are poor catalysts for hydrogen evolution (HER) under photocatalytic conditions, whereas 1 is, or forms, a good and enduring electrocatalyst for HER, but 2 and 3 do not.
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Affiliation(s)
- Abdullah M. Abudayyeh
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Olivier Schott
- Départment de Chimie
- Université de Montréal
- Montréal
- Canada
| | - Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Garry S. Hanan
- Départment de Chimie
- Université de Montréal
- Montréal
- Canada
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
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Bondì L, Rodríguez-Jiménez S, Feltham HLC, Garden AL, Brooker S. Probing the generality of spin crossover complex T½vs. ligand 15N NMR chemical shift correlations: towards predictable tuning. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00919b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A study of 6 families (42 members) demonstrates that within a family the easily calculated 15N-NMR values of ligands enable predictable tuning of T1/2 in the corresponding complexes, except for 2 families with weakly influencing meta-substituents.
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Affiliation(s)
- Luca Bondì
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
- Department of Chemistry ‘Ugo Schiff’ and INSTM Research Unit, University of Florence, 50019 Sesto Fiorentino, Italy
| | - Santiago Rodríguez-Jiménez
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Anna L. Garden
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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Dhers S, Feltham HLC, Rouzières M, Clérac R, Brooker S. Discrete versus Chain Assembly: Hexacyanometallate Linkers and Macrocyclic {3d–4f} Single-Molecule Magnet Building Blocks. Inorg Chem 2019; 58:5543-5554. [DOI: 10.1021/acs.inorgchem.8b03455] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sébastien Dhers
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Mathieu Rouzières
- CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UMR 5031, F-33600 Pessac, France
| | - Rodolphe Clérac
- CNRS, CRPP, UMR 5031, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UMR 5031, F-33600 Pessac, France
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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Singh S, Hogue RW, Feltham HLC, Brooker S. Dinuclear helicate and tetranuclear cage assembly using appropriately designed ditopic triazole-azine ligands. Dalton Trans 2019; 48:15435-15444. [DOI: 10.1039/c9dt01890e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Architecture, helicate or cage, is controlled by choice of meta vs. para phenylene linker in new, robust, ditopic triazole-pyrimidine ligands.
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Affiliation(s)
- Sandhya Singh
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Ross W. Hogue
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
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Karabulut FNH, Feltham HLC, Brooker S. Correction: Substituents drive ligand rearrangements, giving dinuclear rather than mononuclear complexes, and tune Co II/III redox potential. Dalton Trans 2019; 48:12755-12756. [DOI: 10.1039/c9dt90173f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for ‘Substituents drive ligand rearrangements, giving dinuclear rather than mononuclear complexes, and tune CoII/III redox potential’ by Fabrice N. H. Karabulut et al., Dalton Trans., 2018, 47, 11749–11759, DOI: 10.1039/c8dt01502c.
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Affiliation(s)
- Fabrice N. H. Karabulut
- Department of Chemistry and MacDiarmid Institute of Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute of Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute of Advanced Materials and Nanotechnology
- University of Otago
- Dunedin 9054
- New Zealand
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Karabulut FNH, Feltham HLC, Brooker S. Substituents drive ligand rearrangements, giving dinuclear rather than mononuclear complexes, and tune Co II/III redox potential. Dalton Trans 2018; 47:11749-11759. [PMID: 29809223 DOI: 10.1039/c8dt01502c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three new tetradentate imine ligands, HLHBr, HLClH and HLBrH (HLR1R2) were synthesised by 2 : 1 condensation of the appropriately n-halo substituted pyridine-2-carboxaldehyde (5-bromo-4a, 6-bromo-4b or 6-chloro-4c) with 1,3-diaminopropan-2-ol (5). Reactions of each of these three ligands with one equivalent of cobalt(ii) tetrafluoroborate resulted in the formation of three N4O2 coordinated cobalt(ii) complexes: the anticipated mononuclear complex [CoII(HLHBr)(MeOH)2](BF4)2 (1), and two unexpected dinuclear complexes, [CoII2(LBrH-BF2OMe)]2(BF4)2 (2) and [CoII2(LClH-BF2OMe)]2(BF4)2 (3). Dinuclear 2 and 3 result from complexation of cobalt(ii) to the ligands derived from the sterically demanding 6-halo substituted pyridine-2-carboxaldehydes (4b and 4c) undergoing rearrangement, reacting with MeOH and a BF4 anion, resulting in a pair of borate ester bridges between the two cobalt(ii) centres. A similar type of rearrangement is proposed for the PF6 analogues. Cyclic voltammetry in acetonitrile reveals that cobalt(ii) complexes 1-3 undergo a quasi-reversible oxidation: Em = 0.57, 0.38 and 0.29 V vs. 0.01 AgNO3/Ag, respectively. The observed Em value is tuned by the ligand, with the 6-chloro-substituent leading to the lowest Em value being observed for the corresponding cobalt complex, 3, rather than for either of the complexes of the n-bromo-substituted ligands (n = 6 or 5), 2 and 1.
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Affiliation(s)
- Fabrice N H Karabulut
- Department of Chemistry and MacDiarmid Institute of Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
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Balinski K, Schneider L, Wöllermann J, Buling A, Joly L, Piamonteze C, Feltham HLC, Brooker S, Powell AK, Delley B, Kuepper K. Element specific determination of the magnetic properties of two macrocyclic tetranuclear 3d-4f complexes with a Cu 3Tb core by means of X-ray magnetic circular dichroism (XMCD). Phys Chem Chem Phys 2018; 20:21286-21293. [PMID: 29922775 DOI: 10.1039/c7cp08689j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We apply X-ray magnetic circular dichroism to study the internal magnetic structure of two very promising star shaped macrocyclic complexes with a CuII3TbIII core. These complexes are rare examples prepared with a macrocyclic ligand that show indications of SMM (Single Molecule Magnet) behavior, and they differ only in ring size: one has a propylene linked macrocycle, [CuII3TbIII(LPr)(NO3)2(MeOH)(H2O)2](NO3)·3H2O (nickname: Cu3Tb(LPr)), and the other has the butylene linked analogue, [CuII3TbIII(LBu)(NO3)2(MeOH)(H2O)](NO3)·3H2O (nickname: Cu3Tb(LBu)). We analyze the orbital and spin contributions to the Cu and Tb ions quantitatively by applying the spin and orbital sum rules concerning the L2 (M4)/L3 (M5) edges. In combination with appropriate ligand field simulations, we demonstrate that the Tb(iii) ions contribute with high orbital magnetic moments to the magnetic anisotropy, whereas the ligand field determines the easy axis of magnetization. Furthermore, we confirm that the Cu(ii) ions in both molecules are in a divalent valence state, the magnetic moments of the three Cu ions appear to be canted due to 3d-3d intramolecular magnetic interactions. For Cu3Tb(LPr), the corresponding element specific magnetization loops reflect that the Cu(ii) contribution to the overall magnetic picture becomes more important as the temperature is lowered. This implies a low value for the 3d-4f coupling.
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Affiliation(s)
- K Balinski
- Fachbereich Physik and Institut für Physik und Chemie neuer Materialien, Universität Osnabrück, Barbarastr. 7, Osnabrück D-49069, Germany.
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Feltham HLC, Clérac R, Peng Y, Moreno-Pineda E, Powell AK, Brooker S. The Effect of Modifying the Macrocyclic Ring Size on Zn3Ln(Ln= Dy, Er, and Yb) Single-Molecule Magnet Behavior. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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)
- Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; Dunedin New Zealand
| | - Rodolphe Clérac
- CNRS, CRPP, UMR 5031; 33600 Pessac France
- Univ. Bordeaux, CRPP, UMR 5031; 33600 Pessac France
| | - Yan Peng
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr.15 Geb. 30.45 76131 Karlsruhe Germany
- Institute for Nanotechnology; Karlsruhe Institute of Technology; Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Eufemio Moreno-Pineda
- Institute for Nanotechnology; Karlsruhe Institute of Technology; Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Annie K. Powell
- Institute of Inorganic Chemistry; Karlsruhe Institute of Technology; Engesserstr.15 Geb. 30.45 76131 Karlsruhe Germany
- Institute for Nanotechnology; Karlsruhe Institute of Technology; Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; Dunedin New Zealand
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Rodríguez-Jiménez S, Barltrop AS, White NG, Feltham HLC, Brooker S. Solvent Polarity Predictably Tunes Spin Crossover T1/2 in Isomeric Iron(II) Pyrimidine Triazoles. Inorg Chem 2018; 57:6266-6282. [PMID: 29767514 DOI: 10.1021/acs.inorgchem.8b00128] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Alexis S. Barltrop
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Nicholas G. White
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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11
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Abstract
Four tridentate carbazole-based ligands, HLtBu/H {3,6-di(tert-butyl)-1,8-bis[5-(3-benzyl-1,2,3-triazole)]-9H-carbazole}, HLtBu/tBu {3,6-di(tert-butyl)-1,8-bis[5-(3-(4-tert-butyl)benzyl-1,2,3-triazole)]-9H-carbazole}, HLH/H {1,8-bis[5-(3-benzyl-1,2,3-triazole)]-9H-carbazole} and HLH/tBu {1,8-bis[5-(3-(4-tert-butyl)benzyl-1,2,3-triazole)]-9H-carbazole}, were prepared and complexed with cobalt(ii) tetrafluoroborate. In situ air oxidation resulted in cobalt(iii) complexes 1-4 with the general formula [CoIII(L)2]BF4·xH2O (1: L = LtBu/H, x = 2; 2: L = LtBu/tBu, x = 1; 3: L = LH/H, x = 0.5; 4: L = LH/tBu, x = 2). X-ray structural characterisation confirmed that the four complexes are isostructural, with two orthogonally coordinated deprotonated tridentate ligands providing an octahedral N6-donor set to the cobalt(iii) ion. 1H NMR studies show that this structure is maintained in CDCl3 and DMSO-d6 solution. Cyclic voltammetry on 1-4 in MeCN showed that all of the complexes exhibit two reversible, one-electron oxidation processes (probably due to ligand oxidations), and an irreversible or quasi-reversible reduction process (probably due to reduction of Co(iii) to Co(ii)). As expected, the oxidations move 120-140 mV to lower potentials on adding tert-butyl substituents to the 3 and 6 positions of the carbazole rings, and unsurprisingly the potentials are far less sensitive to the nature of the benzyl ring substituents.
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Affiliation(s)
- Michael S Bennington
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Humphrey L C Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Zoë J Buxton
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Nicholas G White
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
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Feltham HLC, Dankhoff K, Meledandri CJ, Brooker S. Towards Dual-Functionality Spin-Crossover Complexes. Chempluschem 2018; 83:582-589. [DOI: 10.1002/cplu.201700512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/09/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
| | - Katja Dankhoff
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
- Current address: Inorganic Chemistry II, Department of Chemistry; University of Bayreuth; Universitätstrasse 30 Bayreuth 95447 Germany
| | - Carla J. Meledandri
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry; University of Otago; MacDiarmid Institute for Advanced Materials and Nanotechnology; PO Box 56 Dunedin 9054 New Zealand
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Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry, MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
| | | | | | | | - Sally Brooker
- Department of Chemistry, MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin, New Zealand
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Feltham HLC, Dumas C, Mannini M, Otero E, Sainctavit P, Sessoli R, Meledandri CJ, Brooker S. Proof of Principle: Immobilisation of Robust Cu II3 Tb III -Macrocycles on Small, Suitably Pre-functionalised Gold Nanoparticles. Chemistry 2017; 23:2517-2521. [PMID: 27981632 DOI: 10.1002/chem.201604821] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 11/11/2022]
Abstract
In a proof-of-principle study, a soluble macrocyclic single-molecule magnet (SMM) containing a CuII3 TbIII magnetic core was covalently grafted onto small gold nanoparticles pre-functionalised with carboxylate-terminated tethers. A modified microemulsion method allowed production of the small and monodisperse nanoparticles (approximately 3.5 nm in diameter) for the chemisorption of a large amount of intact macrocyclic complexes in the hybrid system.
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Affiliation(s)
- Humphrey L C Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin, 9054, New Zealand
| | - Christophe Dumas
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin, 9054, New Zealand
| | - Matteo Mannini
- Dipartimento di Chimica "Ugo Schiff" and UdR INSTM, Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Edwige Otero
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP 48, 91192, Gif-sur-Yvette, France
| | - Philippe Sainctavit
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP 48, 91192, Gif-sur-Yvette, France.,IMPMC, UMR 7590, CNRS, UPMC, IRD, MNHN, 75005, Paris, France
| | - Roberta Sessoli
- Dipartimento di Chimica "Ugo Schiff" and UdR INSTM, Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy
| | - Carla J Meledandri
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin, 9054, New Zealand
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin, 9054, New Zealand
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Feltham HLC, Dumas C, Mannini M, Otero E, Sainctavit P, Sessoli R, Meledandri CJ, Brooker S. Cover Picture: Proof of Principle: Immobilisation of Robust Cu II
3
Tb III
-Macrocycles on Small, Suitably Pre-functionalised Gold Nanoparticles (Chem. Eur. J. 11/2017). Chemistry 2017. [DOI: 10.1002/chem.201605677] [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: 11/08/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Christophe Dumas
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Matteo Mannini
- Dipartimento di Chimica “Ugo Schiff” and UdR INSTM; Università degli Studi di Firenze; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Edwige Otero
- Synchrotron SOLEIL; L'Orme des Merisiers; Saint-Aubin-BP 48 91192 Gif-sur-Yvette France
| | - Philippe Sainctavit
- Synchrotron SOLEIL; L'Orme des Merisiers; Saint-Aubin-BP 48 91192 Gif-sur-Yvette France
- IMPMC; UMR 7590, CNRS, UPMC, IRD, MNHN; 75005 Paris France
| | - Roberta Sessoli
- Dipartimento di Chimica “Ugo Schiff” and UdR INSTM; Università degli Studi di Firenze; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Carla J. Meledandri
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
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16
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Feltham HLC, Dumas C, Mannini M, Otero E, Sainctavit P, Sessoli R, Meledandri CJ, Brooker S. Proof of Principle: Immobilisation of Robust Cu II
3
Tb III
-Macrocycles on Small, Suitably Pre-functionalised Gold Nanoparticles. Chemistry 2017. [DOI: 10.1002/chem.201605717] [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: 11/11/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Christophe Dumas
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Matteo Mannini
- Dipartimento di Chimica “Ugo Schiff” and UdR INSTM; Università degli Studi di Firenze; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Edwige Otero
- Synchrotron SOLEIL; L'Orme des Merisiers; Saint-Aubin-BP 48 91192 Gif-sur-Yvette France
| | - Philippe Sainctavit
- Synchrotron SOLEIL; L'Orme des Merisiers; Saint-Aubin-BP 48 91192 Gif-sur-Yvette France
- IMPMC; UMR 7590, CNRS, UPMC, IRD, MNHN; 75005 Paris France
| | - Roberta Sessoli
- Dipartimento di Chimica “Ugo Schiff” and UdR INSTM; Università degli Studi di Firenze; Via della Lastruccia 3-13 50019 Sesto Fiorentino Italy
| | - Carla J. Meledandri
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology; University of Otago, P.O. Box 56; Dunedin 9054 New Zealand
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17
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Rodríguez-Jiménez S, Feltham HLC, Brooker S. Back Cover: Non-Porous Iron(II)-Based Sensor: Crystallographic Insights into a Cycle of Colorful Guest-Induced Topotactic Transformations (Angew. Chem. Int. Ed. 48/2016). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/anie.201610433] [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: 11/07/2022]
Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
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18
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Rodríguez-Jiménez S, Feltham HLC, Brooker S. Rücktitelbild: Non-Porous Iron(II)-Based Sensor: Crystallographic Insights into a Cycle of Colorful Guest-Induced Topotactic Transformations (Angew. Chem. 48/2016). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610433] [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: 11/12/2022]
Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
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19
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Dhers S, Feltham HLC, Rouzières M, Clérac R, Brooker S. Macrocyclic {3d-4f} SMMs as building blocks for 1D-polymers: selective bridging of 4f ions by use of an O-donor ligand. Dalton Trans 2016; 45:18089-18093. [PMID: 27808299 DOI: 10.1039/c6dt03734h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Crystallisation of the tetranuclear 3d-4f Single-Molecule Magnet (SMM) [CuTbIII(LEt)(NO3)3(MeOH)]·MeOH (1) with Na2[tpa] (tpa = terephthalate and H6LEt is the [3 + 3] imine macrocycle derived from 1,4-diformyl-2,3-dihydroxybenzene and 1,2-diaminoethane) gives a structurally characterised one-dimensional cationic polymer {[CuTbIII(LEt)(tpa)(H2O)3](NO3)·0.5H2O·0.25MeOH}n (2). A comparative study of the static and dynamic magnetic properties of 2 and its precursor, 1, is reported.
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Affiliation(s)
- Sébastien Dhers
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Humphrey L C Feltham
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
| | - Mathieu Rouzières
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France. and Univ. Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechonology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
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20
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Rodríguez-Jiménez S, Feltham HLC, Brooker S. Non-Porous Iron(II)-Based Sensor: Crystallographic Insights into a Cycle of Colorful Guest-Induced Topotactic Transformations. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608813] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
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21
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Rodríguez-Jiménez S, Feltham HLC, Brooker S. Non-Porous Iron(II)-Based Sensor: Crystallographic Insights into a Cycle of Colorful Guest-Induced Topotactic Transformations. Angew Chem Int Ed Engl 2016; 55:15067-15071. [DOI: 10.1002/anie.201608813] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Santiago Rodríguez-Jiménez
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology; University of Otago; PO Box 56 Dunedin 9054 New Zealand
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22
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Hogue RW, Feltham HLC, Miller RG, Brooker S. Spin Crossover in Dinuclear N4S2 Iron(II) Thioether–Triazole Complexes: Access to [HS-HS], [HS-LS], and [LS-LS] States. Inorg Chem 2016; 55:4152-65. [DOI: 10.1021/acs.inorgchem.5b02851] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ross W. Hogue
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
PO Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
PO Box 56, Dunedin 9054, New Zealand
| | - Reece G. Miller
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
PO Box 56, Dunedin 9054, New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
PO Box 56, Dunedin 9054, New Zealand
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23
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Feltham HLC, Johnson C, Elliott ABS, Gordon KC, Albrecht M, Brooker S. “Tail” Tuning of Iron(II) Spin Crossover Temperature by 100 K. Inorg Chem 2015; 54:2902-9. [DOI: 10.1021/ic503040f] [Citation(s) in RCA: 36] [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: 02/02/2023]
Affiliation(s)
- Humphrey L. C. Feltham
- Department
of Chemistry and the MacDiarmid Institute for Advanced Materials and
Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Chloe Johnson
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Anastasia B. S. Elliott
- Department
of Chemistry and the MacDiarmid Institute for Advanced Materials and
Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Keith C. Gordon
- Department
of Chemistry and the MacDiarmid Institute for Advanced Materials and
Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Martin Albrecht
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sally Brooker
- Department
of Chemistry and the MacDiarmid Institute for Advanced Materials and
Nanotechnology, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
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24
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Feltham HLC, Dhers S, Rouzières M, Clérac R, Powell AK, Brooker S. A family of fourteen soluble stable macrocyclic [NiII3LnIII] heterometallic 3d–4f complexes. Inorg Chem Front 2015. [DOI: 10.1039/c5qi00130g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fourteen macrocyclic NiII3LnIII (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu) complexes were made, and checked for Single-Molecule Magnet behaviour; two acyclic analogues were structurally characterised.
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Affiliation(s)
| | - Sébastien Dhers
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | | | | | - Annie K. Powell
- Institute of Inorganic Chemistry
- Karlsruhe Institute of Technology
- 76131 Karlsruhe
- Germany
- Institute for Nanotechnoly
| | - Sally Brooker
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
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25
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Kulmaczewski R, Olguín J, Kitchen JA, Feltham HLC, Jameson GNL, Tallon JL, Brooker S. Remarkable Scan Rate Dependence for a Highly Constrained Dinuclear Iron(II) Spin Crossover Complex with a Wide Thermal Hysteresis Loop. J Am Chem Soc 2014; 136:878-81. [DOI: 10.1021/ja411563x] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Rafal Kulmaczewski
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Juan Olguín
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Jonathan A. Kitchen
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Humphrey L. C. Feltham
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Guy N. L. Jameson
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
| | - Jeffery L. Tallon
- MacDiarmid
Institute for Advanced Materials and Nanotechnology and Robinson Research
Institute, Victoria University of Wellington, P.O. Box 31310, Lower Hutt, New Zealand
| | - Sally Brooker
- Department
of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago,
P.O. Box 56, Dunedin 9054, New Zealand
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26
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Hogue RW, Miller RG, White NG, Feltham HLC, Jameson GNL, Brooker S. Hysteretic spin crossover in iron(ii) complexes of a new pyridine–triazole–pyrazine ligand is tuned by choice of NCE co-ligand. Chem Commun (Camb) 2014; 50:1435-7. [DOI: 10.1039/c3cc43922d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Dhers S, Feltham HLC, Clérac R, Brooker S. Design of one-dimensional coordination networks from a macrocyclic {3d-4f} single-molecule magnet precursor linked by [W(CN)8]3- anions. Inorg Chem 2013; 52:13685-91. [PMID: 24224842 DOI: 10.1021/ic402248y] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The outcome of 1:1 reactions of the tetranuclear 3d-4f Single Molecule Magnet (SMM) [Cu3Tb(L(Pr))(NO3)2(H2O)]NO3 (1) with (TBA)3[W(CN)8] (TBA = tri-n-butyl ammonium cation, [(n-Bu)3N-H](+)) in dimethylformamide (DMF) is dependent on the crystallization method employed: liquid-liquid diffusion of the reagents together gives {[Cu3Tb(L(Pr))W(CN)8(DMF)4]·(DMF)}n (2) whereas diethyl ether vapor diffusion into the reaction solution gives {[Cu3Tb(L(Pr))W(CN)8(DMF)3(H2O)3]·(DMF)1.5·(H2O)0.5}n (3). Both compounds are obtained as black single crystals and feature one-dimensional (1D) coordination networks (chains) of [1](3+) macrocycles linked by [W(CN)8](3-) anions. The two assemblies differ from a structural point of view. Complex 2 has a stepped arrangement with the linkers bound to the opposite faces of the macrocycle, whereas 3 has a square-wave arrangement due to the linkers binding to the same face of the macrocycle. Both compounds display an antiferromagnetic ground state below 3.5 and 2.4 K with a metamagnetic and antiferromagnetic (T, H) phase diagram for 2 and 3, respectively. Remarkably the slow dynamics of the magnetization of the [1](3+) macrocycle units is preserved in 3 while this property is quenched in 2 because of stronger intra- and interchain magnetic interactions inducing a higher critical temperature.
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Affiliation(s)
- Sébastien Dhers
- Department of Chemistry and the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago , P.O. Box 56, Dunedin 9054, New Zealand
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Bilbeisi RA, Zarra S, Feltham HLC, Jameson GNL, Clegg JK, Brooker S, Nitschke JR. Guest Binding Subtly Influences Spin Crossover in an FeII4L4Capsule. Chemistry 2013; 19:8058-62. [DOI: 10.1002/chem.201300805] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Indexed: 11/08/2022]
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Feltham HLC, Clérac R, Ungur L, Chibotaru LF, Powell AK, Brooker S. By Design: A Macrocyclic 3d–4f Single-Molecule Magnet with Quantifiable Zero-Field Slow Relaxation of Magnetization. Inorg Chem 2013; 52:3236-40. [DOI: 10.1021/ic302735j] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and the MacDiarmid
Institute, University of Otago, P.O. Box
56, Dunedin 9054, New Zealand
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP,
UPR 8641, F-33600 Pessac, France
| | | | - Liviu F. Chibotaru
- Division of Quantum and Physical Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven,
Belgium
| | - Annie K. Powell
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology, Engesserstrasse
15 Geb. 30.45, D76131 Karlsruhe, Germany
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtzplatz
1, D76344 Eggenstein-Leopoldshafen, Germany
| | - Sally Brooker
- Department of Chemistry and the MacDiarmid
Institute, University of Otago, P.O. Box
56, Dunedin 9054, New Zealand
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30
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Feltham HLC, Clérac R, Ungur L, Vieru V, Chibotaru LF, Powell AK, Brooker S. Synthesis and Magnetic Properties of a New Family of Macrocyclic MII3LnIII Complexes: Insights into the Effect of Subtle Chemical Modification on Single-Molecule Magnet Behavior. Inorg Chem 2012; 51:10603-12. [DOI: 10.1021/ic300819u] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and
the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Rodolphe Clérac
- CNRS, CRPP, UPR 8641, F-33600 Pessac, France
- Univ. Bordeaux, CRPP, UPR
8641, F-33600 Pessac, France
| | - Liviu Ungur
- Division of Quantum and Physical
Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven, Belgium
| | - Veacheslav Vieru
- Division of Quantum and Physical
Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven, Belgium
| | - Liviu F. Chibotaru
- Division of Quantum and Physical
Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven, Belgium
| | - Annie K. Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstraase
15 Geb. 30.45, 76131 Karlsruhe, Germany
- Institute for Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz
Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sally Brooker
- Department of Chemistry and
the MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56, Dunedin, New Zealand
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31
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Feltham HLC, Lan Y, Klöwer F, Ungur L, Chibotaru LF, Powell AK, Brooker S. Back Cover: A Non‐sandwiched Macrocyclic Monolanthanide Single‐Molecule Magnet: The Key Role of Axiality (Chem. Eur. J. 16/2011). Chemistry 2011. [DOI: 10.1002/chem.201190081] [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: 11/05/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
| | - Yanhua Lan
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Frederik Klöwer
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Liviu Ungur
- Division of Quantum and Physical Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
- INPAC‐Institute of Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
| | - Liviu F. Chibotaru
- Division of Quantum and Physical Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
| | - Annie K. Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
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Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
| | - Rodolphe Clérac
- CNRS, UPR 8641, Centre de Recherche Paul Pascal (CRPP), Equipe “Matériaux Moléculaires Magnétiques”, 115 avenue du Dr. Albert Schweitzer, Pessac F-33600, France
- Université de Bordeaux, UPR 8641, Pessac F-33600, France
| | - Annie K. Powell
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie, Engesserstrasse 15 Geb. 30.45, 76131 Karlsruhe, Germany
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand
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33
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Feltham HLC, Lan Y, Klöwer F, Ungur L, Chibotaru LF, Powell AK, Brooker S. A Non‐sandwiched Macrocyclic Monolanthanide Single‐Molecule Magnet: The Key Role of Axiality. Chemistry 2011; 17:4362-5. [DOI: 10.1002/chem.201100438] [Citation(s) in RCA: 219] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Humphrey L. C. Feltham
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
| | - Yanhua Lan
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Frederik Klöwer
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Liviu Ungur
- Division of Quantum and Physical Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
- INPAC‐Institute of Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
| | - Liviu F. Chibotaru
- Division of Quantum and Physical Chemistry, Katholieke Universiteit Leuven, Celestijenlaan 200F, 3001, Leuven (Belgium)
| | - Annie K. Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15 Geb. 30. 45, 76131 Karlsruhe (Germany)
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, P.O. Box 56 , Dunedin 9054 (New Zealand), Fax: (+64) 3‐479‐7906
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Feltham HLC, Klöwer F, Cameron SA, Larsen DS, Lan Y, Tropiano M, Faulkner S, Powell AK, Brooker S. A family of 13 tetranuclear zinc(ii)-lanthanide(iii) complexes of a [3 + 3] Schiff-base macrocycle derived from 1,4-diformyl-2,3-dihydroxybenzene. Dalton Trans 2011; 40:11425-32. [DOI: 10.1039/c1dt11038a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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White NG, Feltham HLC, Gandolfi C, Albrecht M, Brooker S. Towards Langmuir–Blodgett films of magnetically interesting materials: solution equilibria in amphiphilic iron(ii) complexes of a triazole-containing ligand. Dalton Trans 2010; 39:3751-8. [DOI: 10.1039/b923923e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Feltham HLC, Larsen DS, Brooker S. A hexanuclear iron(iii) complex of a hexadentate fully conjugated diimine ligand derived from 1,4-diformyl-2,3-dihydroxybenzene. NEW J CHEM 2009. [DOI: 10.1039/b9nj00347a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Feltham HLC, Clérac R, Brooker S. Hexa-, hepta- and dodeca-nuclear nickel(II) complexes of three Schiff-base ligands derived from 1,4-diformyl-2,3-dihydroxybenzene. Dalton Trans 2009:2965-73. [DOI: 10.1039/b821782c] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Feltham HLC, Clérac R, Brooker S. A Tetranuclear Mixed-Valence Manganese Complex of a Diimine Ligand Derived from 1,4-Diformyl-2,3-dihydroxybenzene: Synthesis, Structure, and Magnetic Properties. Aust J Chem 2009. [DOI: 10.1071/ch09254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An acyclic hexadentate diimine ligand, H4L1, was prepared in situ in methanol by the condensation of 1,4-diformyl-2,3-dihydroxybenzene (1) with 2-aminoethanol, and complexed directly with two equivalents of MnII(OAc)2·4H2O or MnIII(OAc)3·2H2O, or with one equivalent of each. All three of these one-pot reactions gave the mixed-valent tetrametallic complex [MnII2MnIII2(L1)2(OAc)2(solvents)4], [2(solvents)4]. An X-ray crystal structure determination on [2(MeOH)4]·2MeOH revealed a centre of inversion in the middle of the complex. The four metal ions are in an almost planar array, sandwiched by two offset ligands which provide all of the equatorial donors, with the axial sites occupied by acetate ions and methanol molecules. The two manganese(II) ions are seven coordinate and centrally located, whereas the two manganese(III) ions are Jahn–Teller elongated octahedra and are located in the outer sites. Magnetic analysis of an air-dried sample, [2(MeOH)2(H2O)2]·3H2O, showed that weak antiferromagnetic interactions between the manganese ions dominate, resulting in a low ground spin state.
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