1
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Gobbo A, Pereira SAP, Mota FAR, Sinenko I, Glinkina K, Rocchi D, Guelfi M, Biver T, Donati C, Zacchini S, Saraiva MLMFS, Dyson PJ, Marchetti F. Anticancer potential of NSAID-derived tris(pyrazolyl)methane ligands in iron(II) sandwich complexes. Dalton Trans 2024. [PMID: 39072444 DOI: 10.1039/d4dt00920g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Tris(pyrazolyl)methane (tpm), 2,2,2-tris(pyrazolyl)ethanol (tpmOH) and its esterification derivatives with ibuprofen and flurbiprofen (tpmIBU and tpmFLU) were used as ligands to obtain complexes of the type [Fe(tpmX)2]Cl2 (1-4). The tpmIBU and tpmFLU ligands and corresponding complexes 3 and 4 were characterized by IR and multinuclear NMR spectroscopy, and the structure of tpmIBU was elucidated by single crystal X-ray diffraction. Complexes 1-4 were also assessed for their behaviour in aqueous media (solubility in D2O, octanol/water partition coefficient, stability in physiological-like conditions). The antiproliferative activity of ligands and complexes was determined on A2780, A2780cis and A549 cancer cell lines and the non-cancerous HEK 293T and BJ cell lines. The ligands and complexes were investigated for their ability to inhibit COX-2 (cyclooxygenase) and HNE (4-hydroxynonenal) enzymes. Complexes 3 and 4 exhibited cytotoxicity that may be attributed predominantly to their bioactive fragments, while DNA binding and enhancement of ROS production do not appear to play any significant role.
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Affiliation(s)
- Alberto Gobbo
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Sarah A P Pereira
- LAQV, REQUIMTE, Laboratório de Química Aplicada, Faculdade de Farmácia da Universidade do Porto, Portugal
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH 1015, Switzerland
| | - Fátima A R Mota
- LAQV, REQUIMTE, Laboratório de Química Aplicada, Faculdade de Farmácia da Universidade do Porto, Portugal
| | - Irina Sinenko
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH 1015, Switzerland
| | - Kseniya Glinkina
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH 1015, Switzerland
| | - Dario Rocchi
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Massimo Guelfi
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Tarita Biver
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Chiara Donati
- University of Padova, Department of Pharmaceutical and Pharmacological Sciences, Via F. Marzolo 5, I-35131 Padova, Italy
| | - Stefano Zacchini
- University of Bologna, Department of Industrial Chemistry "Toso Montanari", Via P. Gobetti 85, I-40129 Bologna, Italy
| | - M Lúcia M F S Saraiva
- LAQV, REQUIMTE, Laboratório de Química Aplicada, Faculdade de Farmácia da Universidade do Porto, Portugal
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH 1015, Switzerland
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
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2
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A monomeric iron(III) compound containing N-(2-pyridylmethyl)iminodiisopropanolate and thiocyanato ligands: structure, magnetic and catalytic properties. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Shahid N, Burrows KE, Pask CM, Cespedes O, Howard MJ, McGowan PC, Halcrow MA. Heteroleptic iron( ii) complexes of chiral 2,6-bis(oxazolin-2-yl)-pyridine (PyBox) and 2,6-bis(thiazolin-2-yl)pyridine ligands – the interplay of two different ligands on the metal ion spin sate. Dalton Trans 2022; 51:4262-4274. [DOI: 10.1039/d2dt00393g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The spin-crossover properties of [Fe(LR)L][ClO4]2 (LR = a chiral PyBox {L1R} or ThioPyBox {L2R} derivative) show subtle differences depending on the tridentate ‘L’ co-ligand.
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Affiliation(s)
- Namrah Shahid
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT
| | - Kay E. Burrows
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT
| | | | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, WH Bragg Building, Leeds, UK LS2 9JT
| | - Mark J. Howard
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT
| | - Patrick C. McGowan
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT
| | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT
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4
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Spin Crossover in New Iron(II) Coordination Compounds with Tris(pyrazol-1-yl)Methane. CRYSTALS 2020. [DOI: 10.3390/cryst10090843] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
We review here new advances in the synthesis and investigation of iron(II) coordination compounds with tris(pyrazol-1-yl)methane and its derivatives as ligands. The complexes demonstrate thermally induced spin crossover accompanied by thermochromism. Factors that influence the nature and temperature of the spin crossover are discussed.
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5
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Tretiakov S, Damen JAM, Lutz M, Moret ME. A dianionic C 3-symmetric scorpionate: synthesis and coordination chemistry. Dalton Trans 2020; 49:13549-13556. [PMID: 32941574 DOI: 10.1039/d0dt02601h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introducing charges into ligand systems fine-tunes their electronic properties and influences the solubility of their metal complexes. Herein, we present a synthesis of a dianionic, C3-symmetric ligand combining three anionic N-donors tethered to a positively charged phosphonium center. The tris-skatylmethylphosphonium (TSMP) ligand, isolated in the form of its dipotassium salt TSMPK2, is the first dianionic homoscorpionate capable of metal exchange. The potassium cations in TSMPK2 are exchangeable for other metals, which results in rich coordination chemistry. Thus, the ligand displays a bridging μ2:κ2:κ1 coordination mode with trigonal planar Cu(i) centers in the tetrameric complex [(TSMP)Cu]44-. The κ3 mode is accessed upon addition of 1 equiv. of P(OEt)3 per Cu(i) to yield the tetrahedral monomeric complex [(TSMP)CuP(OEt)3]-. Both Fe(ii) and Ni(ii) in pyridine give octahedral high-spin κ3 complexes with composition (TSMP)M(Py)3 (M = Fe, Ni). Displacement of three pyridine ligands in (TSMP)Fe(Py)3 for a second equivalent of TSMP gives a high-spin pseudotetrahedral 2 : 1 complex [(TSMP)2Fe]2- with the ligands in κ2 coordination mode. The reduction in coordination number is likely due to electrostatic repulsion of the negatively-charged indolides as well as their weaker π-accepting character as compared to pyridine.
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Affiliation(s)
- Serhii Tretiakov
- Utrecht University, Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Faculty of Science, 3584 CG Utrecht, The Netherlands.
| | - Johannes A M Damen
- Utrecht University, Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Faculty of Science, 3584 CG Utrecht, The Netherlands.
| | - Martin Lutz
- Utrecht University, Crystal and Structural Chemistry, Bijvoet Centre for Biomolecular Research, Faculty of Science, 3584 CH Utrecht, The Netherlands
| | - Marc-Etienne Moret
- Utrecht University, Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Faculty of Science, 3584 CG Utrecht, The Netherlands.
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6
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Gardinier JR, Meise KJ, Jahan F, Wang D, Lindeman SV. Selective Isomer Formation and Crystallization-Directed Magnetic Behavior in Nitrogen-Confused C-Scorpionate Complexes of Fe(O 3SCF 3) 2. Inorg Chem 2019; 58:8953-8968. [PMID: 31247826 DOI: 10.1021/acs.inorgchem.8b03454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The complex [Fe(HL*)2](OTf)2, 1, where HL* = bis(3,5-dimethylpyrazol-1-yl)(3-1H-pyrazole)methane, was prepared in order to compare its magnetic properties with those of the analogous parent complex, [Fe(HL)2](OTf)2, that lacks methyl groups on pyrazolyl rings and that undergoes spin crossover (SCO) from the low spin (LS) to the high spin (HS) form above room temperature. It was anticipated that this new semibulky derivative should favor the HS state and undergo SCO at a lower temperature range. During this study, six crystalline forms of 1 were prepared by controlling the crystallization conditions. Thus, when reagents are combined in CH3CN, an equilibrium mixture of cis and trans isomers is established that favors the latter below 311 K. The trans isomer can be isolated exclusively as a mixture of solvates, LS trans-1·2CH3CN and HS trans-1·4CH3CN, by cooling CH3CN solutions to -20 °C with the former being favored at high concentrations and short crystallization times. Subsequently, vapor diffusion of Et2O into CH3CN solutions of pure trans-1·2CH3CN gives solvate-free HS trans-1. Subjecting trans-1·2CH3CN to vacuum at room temperature gives microcrystalline trans-1·CH3CN, identified by elemental analysis and its distinct powder X-ray diffraction pattern. If an isomeric mixture of 1 is subject to room-temperature vapor diffusion, then a crystalline mixture of HS isomers cis-1 and trans-1 is obtained. Finally, slowly cooling hot acetonitrile solutions of isomeric mixtures of 1 to room temperature gives large prisms of HS co-1, a species with both cis and trans isomers in the unit cell. The complexes trans-1, trans-1·CH3CN, cis-1, and co-1 undergo SCO below 250 K while trans-1·xCH3CN (x = 2, 4) solvates do not undergo SCO before desolvation.
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Affiliation(s)
- James R Gardinier
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Kristin J Meise
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Fathiya Jahan
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Denan Wang
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
| | - Sergey V Lindeman
- Department of Chemistry , Marquette University , Milwaukee , Wisconsin 53201-1881 , United States
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7
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Phonsri W, Lewis BAI, Jameson GNL, Murray KS. Double spin crossovers: a new double salt strategy to improve magnetic and memory properties. Chem Commun (Camb) 2019; 55:14031-14034. [DOI: 10.1039/c9cc07416c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of a “double spin crossover” material, [FeII(3,5-Me2 tris(pyrazolyl)methane)(tris(pyrazolyl)methane)][FeIII azodiphenolate]ClO4·2MeCN was synthesised by reacting a spin crossover FeII complex cation with a spin crossover FeIII complex anion.
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Affiliation(s)
| | | | - Guy N. L. Jameson
- School of Chemistry
- Bio21 Molecular Science and Biotechnology Institute
- The University of Melbourne
- Parkville
- Australia
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8
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Tailleur E, Marchivie M, Negrier P, Denux D, Massip S, Mondieig D, Chastanet G, Guionneau P. Using polymorphism to master the spin crossover mechanism in [Fe(PM-PeA)2(NCSe)2]. CrystEngComm 2019. [DOI: 10.1039/c9ce01137d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polymorphism drives the mechanism of the spin-crossover in [Fe(PM-PeA)2(NCSe)2] single-crystals.
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9
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Smeets V, Wolff M, Wolny JA, Schünemann V, Dîrtu MM, Ge J, Vanacken J, Moshchalkov V, Garcia Y. Spin State Crossover, Vibrational, Computational, and Structural Studies of Fe
II
1‐Isopropyl‐1
H
‐tetrazole Derivatives. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Valentin Smeets
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université catholique de Louvain Place Louis Pasteur 1 1348 Louvain‐la‐Neuve Belgium
| | - Mariusz Wolff
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université catholique de Louvain Place Louis Pasteur 1 1348 Louvain‐la‐Neuve Belgium
- Institute of Chemistry University of Silesia 9th Szkolna Street Katowice Poland
| | - Juliusz A. Wolny
- Department of Physics University of Kaiserslautern 67663 Kaiserslautern Germany
| | - Volker Schünemann
- Department of Physics University of Kaiserslautern 67663 Kaiserslautern Germany
| | - Marinela M. Dîrtu
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université catholique de Louvain Place Louis Pasteur 1 1348 Louvain‐la‐Neuve Belgium
| | - Jun‐Yi Ge
- Solid State Physics and Magnetism Section Katholieke Universiteit Leuven Celestijnenlaan 200d 3001 Leuven Belgium
| | - Johan Vanacken
- Solid State Physics and Magnetism Section Katholieke Universiteit Leuven Celestijnenlaan 200d 3001 Leuven Belgium
| | - Victor Moshchalkov
- Solid State Physics and Magnetism Section Katholieke Universiteit Leuven Celestijnenlaan 200d 3001 Leuven Belgium
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université catholique de Louvain Place Louis Pasteur 1 1348 Louvain‐la‐Neuve Belgium
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10
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Phonsri W, Macedo DS, Davies CG, Jameson GNL, Moubaraki B, Murray KS. Heteroleptic iron(iii) Schiff base spin crossover complexes: halogen substitution, solvent loss and crystallite size effects. Dalton Trans 2017; 46:7020-7029. [DOI: 10.1039/c7dt00947j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New heteroleptic iron(iii) spin crossover complexes, [Fe(qsal-X)(thsa)]·nMeCN, have been investigated. Halogen substitution, solvent and crystallite size effects are discussed.
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Affiliation(s)
- Wasinee Phonsri
- School of Chemistry
- 17 Rainforest Walk
- Monash University
- Clayton
- Australia
| | - David S. Macedo
- School of Chemistry
- 17 Rainforest Walk
- Monash University
- Clayton
- Australia
| | - Casey G. Davies
- Department of Chemistry & MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin
- New Zealand
| | - Guy N. L. Jameson
- Department of Chemistry & MacDiarmid Institute for Advanced Materials and Nanotechnology
- University of Otago
- Dunedin
- New Zealand
| | | | - Keith S. Murray
- School of Chemistry
- 17 Rainforest Walk
- Monash University
- Clayton
- Australia
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11
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Zhang YZ, Gómez-Coca S, Brown AJ, Saber MR, Zhang X, Dunbar KR. Trigonal antiprismatic Co(ii) single molecule magnets with large uniaxial anisotropies: importance of Raman and tunneling mechanisms. Chem Sci 2016; 7:6519-6527. [PMID: 27928492 PMCID: PMC5125373 DOI: 10.1039/c6sc02035f] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 06/15/2016] [Indexed: 11/21/2022] Open
Abstract
A trigonal antiprismatic Co(ii) molecule exhibits counterion-dependent relaxation of the magnetization due to the importance of the Raman relaxation process.
The air-stable mononuclear Co(ii) compounds [CoII(Tpm)2][ClO4]2 (1, Tpm = tris(pyrazol-1-yl)methane), [CoII(Tpm)2][BPh4]2·2MeCN (2) with trigonal antiprismatic geometry (trigonally elongated octahedral geometry) are reported. Magnetic and theoretical studies reveal that the complexes exhibit single-molecule magnet behavior with uniaxial anisotropy and a huge energy difference between ground and first excited Karmers' doublets (∼200 cm–1). Under applied DC fields, compounds 1 and 2 exhibit frequency and temperature dependence of the imaginary susceptibility. The fit of the data to an Orbach relaxation process yields effective energy barriers of 30.6(1) and 44.7(6) cm–1 for 1 and 2, respectively, but there is no real state at that energy. The inclusion of tunneling, direct and Raman relaxation processes leads to the conclusion that the inclusion of an Orbach process is not required to provide a good fit to the data. More interestingly, a detailed study of the dependence of the relaxation time with field shows that for these Kramers' ions, tunneling is the predominant process at low temperature and that differences in the counteranion allow for a tuning of the Raman process at higher temperatures. These findings underscore the fact that large uniaxial anisotropy can be achieved in hexacoordinate Co(ii) trigonal antiprismatic complexes which is an unexplored geometry in mononuclear single molecule magnets.
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Affiliation(s)
- Yuan-Zhu Zhang
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ; ; Department of Chemistry , South University of Science and Technology of China , 518055 , Shenzhen , P. R. China
| | - Silvia Gómez-Coca
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ;
| | - Andrew J Brown
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ;
| | - Mohamed R Saber
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ; ; Department of Chemistry , Fayoum University , Fayoum 63514 , Egypt
| | - Xuan Zhang
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ;
| | - Kim R Dunbar
- Department of Chemistry , Texas A & M University , College Station , TX 77842-3012 , USA . ;
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12
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Martins LMDRS, Pombeiro AJL. Water-Soluble C-Scorpionate Complexes - Catalytic and Biological Applications. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600053] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Luísa M. D. R. S. Martins
- Chemical Engineering Department; Instituto Superior de Engenharia de Lisboa; R. Conselheiro Emídio Navarro 1959-007 Lisboa Portugal
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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13
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Gardinier JR, Treleven AR, Meise KJ, Lindeman SV. Accessing spin-crossover behaviour in iron(ii) complexes of N-confused scorpionate ligands. Dalton Trans 2016; 45:12639-43. [DOI: 10.1039/c6dt01898j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scorpionates with a dislocated pyrazolyl have been prepared on a large scale to allow new variations in iron(ii) spin-crossover materials.
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Affiliation(s)
| | - Alex R. Treleven
- Department of Chemistry
- Marquette University
- Milwaukee
- USA 53201-1881
| | - Kristin J. Meise
- Department of Chemistry
- Marquette University
- Milwaukee
- USA 53201-1881
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14
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Herold CF, Carrella LM, Rentschler E. A Family of Dinuclear Iron(II) SCO Compounds Based on a 1,3,4‐Thiadiazole Bridging Ligand. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500483] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christian F. Herold
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz Duesbergweg 10–14, 55128 Mainz, Germany, http://www.ak‐rentschler.chemie.uni‐mainz.de
| | - Luca M. Carrella
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz Duesbergweg 10–14, 55128 Mainz, Germany, http://www.ak‐rentschler.chemie.uni‐mainz.de
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University Mainz Duesbergweg 10–14, 55128 Mainz, Germany, http://www.ak‐rentschler.chemie.uni‐mainz.de
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15
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Tyagi N, Chakraborty A, Singh UP, Roy P, Ghosh K. Mononuclear iron(iii) complexes of tridentate ligands with efficient nuclease activity and studies of their cytotoxicity. Org Biomol Chem 2015; 13:11445-58. [DOI: 10.1039/c5ob01623a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mono- and bis-chelated iron(iii) complexes derived from phenolato-based tridentate ligands have been synthesised and characterized. These complexes show electrostatic DNA interactions and efficient DNA cleavage via OH˙ radicals, and induce cytotoxicity in MCF7 cell lines.
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Affiliation(s)
- Nidhi Tyagi
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Ajanta Chakraborty
- Department of Biochemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Udai P. Singh
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Partha Roy
- Department of Biochemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Kaushik Ghosh
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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16
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Santoro A, Sambiagio C, McGowan PC, Halcrow MA. Synthesis and coordination chemistry of 1,1,1-tris-(pyrid-2-yl)ethane. Dalton Trans 2015; 44:1060-9. [DOI: 10.1039/c4dt02824d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The complexes [ML2]n+(Mn+= Fe2+, Co2+, Co3+, Cu2+and Ag+), [PdCl2L] and [CuI(L)] are described. [AgL2]+is an unusual square planar silver(i) centre (left). Exposure of [CuI(L)] to air affords mono- or dinuclear copper(ii)/carbonato products. Two of the copper complexes form crystalline hydrates with complicated hydrogen bond networks (right).
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17
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García-Rodríguez R, Bullock TH, McPartlin M, Wright DS. Synthesis and structures of tris(2-pyridyl)aluminate sandwich compounds [{RAl(2-py′)2}2M] (py′ = 2-pyridyl, M = Ca, Mn, Fe). Dalton Trans 2014; 43:14045-53. [DOI: 10.1039/c4dt00951g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
While neither the bridgehead group (R) nor remote ring Me-groups have any impact on metal coordination of tris(2-pyridyl) aluminate ligands [RAl(2-py′)3]−, Me groups adjacent to the donor pyridyl-N atoms have a large effect on their ability to form sandwich arrangements.
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Affiliation(s)
| | | | - Mary McPartlin
- Chemistry Department
- Cambridge University
- Cambridge CB2 1EW, UK
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18
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Durá G, Carrión MC, Jalón FA, Manzano BR, Rodríguez AM. Dinuclear Species versus Zigzag or Helical Polymers in Palladium, Zinc, and Copper Complexes with Ditopic Bis(pyrazolyl)methane Ligands. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300948] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Lavrenova LG, Shakirova OG. Spin Crossover and Thermochromism of Iron(II) Coordination Compounds with 1,2,4-Triazoles and Tris(pyrazol-1-yl)methanes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200980] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Lavrenova LG, Strekalova AD, Virovets AV, Piryazev DA, Daletskii VA, Sheludyakova LA, Mikhailovskaya TF, Vasilevskii SF. Spin crossover in the coordination compounds of iron(II) with tris(3,5-dimethylpyrazol-1-yl)methane. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412070081] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Hirosawa N, Oso Y, Ishida T. Spin Crossover and Light-induced Excited Spin-state Trapping Observed for an Iron(II) Complex Chelated with Tripodal Tetrakis(2-pyridyl)methane. CHEM LETT 2012. [DOI: 10.1246/cl.2012.716] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naoki Hirosawa
- Department of Engineering Science, The University of Electro-Communications
| | - Yuya Oso
- Department of Engineering Science, The University of Electro-Communications
| | - Takayuki Ishida
- Department of Engineering Science, The University of Electro-Communications
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22
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Lavrenova LG, Virovets AV, Peresypkina EV, Strekalova AD, Piryazev DA, Daletsky VA, Sheludyakova LA, Vasilevsky SF. Spin-crossover in the complex of iron(II) nitrate with tris(3,5-dimethylpyrazol-1-yl)methane. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.11.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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23
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High-temperature spin crossover in the [Fe(L)2][Fe(L)(NCS)3](NCS)·2H2O complex, L=tris(pyrazol-1-yl)methane. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.08.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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25
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Goodman MA, Nazarenko AY, Casavant BJ, Li Z, Brennessel WW, DeMarco MJ, Long G, Goodman MS. Tris(5-methylpyrazolyl)methane: Synthesis and Properties of Its Iron(II) Complex. Inorg Chem 2011; 51:1084-93. [DOI: 10.1021/ic2022038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Margaret A. Goodman
- Department of Math and Natural
Sciences, D’Youville College, Buffalo,
New York 14201, United States
| | | | | | | | - William W. Brennessel
- Department of Chemistry, University of Rochester, Rochester, New York 14627,
United States
| | - Michael J. DeMarco
- Department
of Physics, SUNY at Buffalo, Buffalo, New
York 14260, United States
| | - Gen Long
- Department
of Physics, SUNY at Buffalo, Buffalo, New
York 14260, United States
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26
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Gass IA, Batten SR, Forsyth CM, Moubaraki B, Schneider CJ, Murray KS. Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.01.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Gan X, Chi SM, Mu WH, Yao JC, Quan L, Li C, Bian ZY, Chen Y, Fu WF. Cu(I) and Pb(II) complexes containing new tris(7-naphthyridyl)methane derivatives: synthesis, structures, spectroscopy and geometric conversion. Dalton Trans 2011; 40:7365-74. [PMID: 21681325 DOI: 10.1039/c0dt01747g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel facial-capping tris-naphthyridyl compounds, 2-chloro-5-methyl-7-((2,4-dimethyl-1,8-naphthyridin-7(1H)-ylidene)(2,4-dimethyl-1,8-naphthyridin-7-yl))methyl-1,8-naphthyridine (L(1)) and 2-chloro-7-((2-methyl-1,8-naphthyridin-7(1H)-ylidene)(2-methyl-1,8-naphthyridin-7-yl))methyl-1,8-naphthyridine (L(2)), as well as their Cu(i) and Pb(ii) complexes, [CuL(a)(PPh(3))]BF(4) (1) (PPh(3) = triphenylphosphine, L(a) = bis(2,4-dimethyl-1,8-naphthyridin-7-yl)(2-chloro-5-methyl-1,8-naphthyridin-7-yl)methane), [CuL(b)(PPh(3))]BF(4) (2) (L(b) = bis(2-methyl-1,8-naphthyridin-7-yl)(2-chloro-1,8-naphthyridin-7-yl)methane), [Pb(OL(a))(NO(3))(2)] (3) (OL(a) = bis(2,4-dimethyl-1,8-naphthyridin-7-yl)(2-chloro-5-methyl-1,8-naphthyridin-7-yl)methanol) and [Pb(L(b))(2)][Pb(CH(3)OH)(NO(3))(4)] (4), have been synthesized and characterized by X-ray diffraction analysis, MS, NMR and elemental analysis. The structural investigations revealed that the transfer of the H-atom at the central carbon to an adjacent naphthyridine-N atom affords L(1) and L(2) possessing large conjugated architectures, and the central carbon atoms adopt the sp(2) hybridized bonding mode. The reversible hydrogen transfer and a geometric configuration conversion from sp(2) to sp(3) of the central carbon atom were observed when Pb(II) and Cu(I) were coordinated to L(1) or L(2). The molecular energy changes accompanying the hydrogen migration and titration of H(+) to different receptor-N at L(1) were calculated by density functional theory (DFT) at the SCRF-B3LYP/6-311++G(d,p) level in a CH(2)Cl(2) solution, and the observed lowest-energy absorption and emission for L(1) and L(2) can be tentatively assigned to an intramolecular charge transfer (ICT) transition in nature.
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Affiliation(s)
- Xin Gan
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, PR China
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28
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Halcrow MA. Structure:function relationships in molecular spin-crossover complexes. Chem Soc Rev 2011; 40:4119-42. [PMID: 21483934 DOI: 10.1039/c1cs15046d] [Citation(s) in RCA: 668] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spin-crossover compounds are becoming increasingly popular for device and sensor applications, and in soft materials, that make use of their switchable colour, paramagnetism and conductivity. The de novo design of new solid spin-crossover compounds with pre-defined switching properties is desirable for application purposes. This challenging problem of crystal engineering requires an understanding of how the temperature and cooperativity of a spin-transition are influenced by the structure of the bulk material. Towards that end, this critical review presents a survey of molecular spin-crossover compounds with good availability of crystallographic data. A picture is emerging that changes in molecular shape between the high- and low-spin states, and the ability of a lattice to accommodate such changes, can play an important role in determining the existence and the cooperativity of a thermal spin-transition in the solid state (198 references).
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Affiliation(s)
- Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT. m.a.halcrow@ leeds.ac.uk
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29
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Silva TF, Guedes da Silva MF, Mishra GS, Martins LM, Pombeiro AJ. Synthesis and structural characterization of iron complexes with 2,2,2-tris(1-pyrazolyl)ethanol ligands: Application in the peroxidative oxidation of cyclohexane under mild conditions. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.12.036] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Saha R, Biswas S, Steele IM, Dey K, Mostafa G. A supramolecular spin crossover Fe(III) complex and its Cr(III) isomer: stabilization of water-chloride cluster within supramolecular host. Dalton Trans 2011; 40:3166-75. [PMID: 21340091 DOI: 10.1039/c0dt01256d] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The metal complexes, [M(Hdammthiol)(2)]Cl·3H(2)O [M = Cr(III) (1), Fe(III) (2)] [where H(2)dammthiol is the thiol form of the ligand, diacetylmonoxime morpholine N-thiohydrazone] were synthesized by metal template reactions of diacetylemonoxime with morpholine N-thiohydrazide in the presence of CrCl(3)·6H(2)O and FeCl(3)·6H(2)O. Both the complexes (1 and 2) were characterized by single crystal X-ray crystallography, spectroscopic (IR and UV-vis), Mössbauer and TGA analyses. The single crystal X-ray studies of both complexes show that the supramolecular hosts, constructed by the discrete mononuclear complexes, form supramolecular channels along the c-axis which are filled up by water-chloride clusters. In both complexes, the 1D water-chloride chain with chair-like architecture within the supramolecular hosts presents novelty. The magnetic measurement study of Fe(III) complex shows a spin crossover from S = 1/2 at 2.5 K to S = 5/2 at 300 K. At very low temperature, the presence of strong cooperative hydrogen bonding interactions stabilizes the S = 1/2 state.
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Affiliation(s)
- Rajat Saha
- Department of Physics, Jadavpur University, Jadavpur, Kolkata-700032, India
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31
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Schneider CJ, Moubaraki B, Cashion JD, Turner DR, Leita BA, Batten SR, Murray KS. Spin crossover in di-, tri- and tetranuclear, mixed-ligand tris(pyrazolyl)methane iron(ii) complexes. Dalton Trans 2011; 40:6939-51. [DOI: 10.1039/c0dt01725f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Griaznova T, Katsyuba S, Shakirova O, Lavrenova L. Variable temperature IR spectroscopy and quantum chemistry as the tool for diagnostics of metal spin state. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.06.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Reger DL, Elgin JD, Foley EA, Smith MD, Grandjean F, Long GJ. Structural, Magnetic, and Mössbauer Spectral Study of the Electronic Spin-State Transition in [Fe{HC(3-Mepz)2(5-Mepz)}2](BF4)2. Inorg Chem 2009; 48:9393-401. [DOI: 10.1021/ic901259e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel L. Reger
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - J. Derek Elgin
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
- Department of Chemistry and Physics, Coastal Carolina University, Conway, South Carolina 29528
| | - Elizabeth A. Foley
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208
| | - Fernande Grandjean
- Department of Physics, B5, University of Liège, B-4000 Sart-Tilman, Belgium
| | - Gary J. Long
- Department of Chemistry, Missouri University of Science and Technology, University of Missouri, Rolla, Missouri 65409-0010
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34
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Nielsen P, Toftlund H, Bond AD, Boas JF, Pilbrow JR, Hanson GR, Noble C, Riley MJ, Neville SM, Moubaraki B, Murray KS. Systematic Study of Spin Crossover and Structure in [Co(terpyRX)2](Y)2 Systems (terpyRX = 4′-alkoxy-2,2′:6′,2′′-terpyridine, X = 4, 8, 12, Y = BF4−, ClO4−, PF6−, BPh4−). Inorg Chem 2009; 48:7033-47. [DOI: 10.1021/ic802252k] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pia Nielsen
- Institute of Physics and Chemistry, University of Southern Denmark, Odense, Denmark
| | - Hans Toftlund
- Institute of Physics and Chemistry, University of Southern Denmark, Odense, Denmark
| | - Andrew D. Bond
- Institute of Physics and Chemistry, University of Southern Denmark, Odense, Denmark
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35
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Reger DL, Little CA, Semeniuc RF, Smith MD. Synthesis and structural characterization of a mixed-ligand diiron(II) complex formed by a linked bitopic tris(pyrazolyl)methane ligand: {HC(3,5-Me2pz)3Fe[μ-p-C6H4(CH2OCH2C(pz)3)2]Fe(3,5-Me2pz)3CH}(BF4)4 (pz=pyrazolyl ring). Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.03.120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Pritchard R, Lazar H, Barrett SA, Kilner CA, Asthana S, Carbonera C, Létard JF, Halcrow MA. Thermal and light-induced spin-transitions in iron(ii) complexes of 2,6-bis(4-halopyrazolyl)pyridines: the influence of polymorphism on a spin-crossover compound. Dalton Trans 2009:6656-66. [DOI: 10.1039/b907094j] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Mishra V, Mukherjee R, Linares J, Balde C, Desplanches C, Létard JF, Collet E, Toupet L, Castro M, Varret F. Temperature-Dependent Interactions and Disorder in the Spin-Transition Compound [FeII(L)2][ClO4]2·C7H8 Through Structural, Calorimetric, Magnetic, Photomagnetic, and Diffuse Reflectance Investigations. Inorg Chem 2008; 47:7577-87. [DOI: 10.1021/ic8002977] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vibha Mishra
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Rabindranath Mukherjee
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Jorge Linares
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Chérif Balde
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Cédric Desplanches
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Jean-François Létard
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Eric Collet
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Loic Toupet
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - Miguel Castro
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
| | - François Varret
- GEMAC, CNRS—Université de Versailles, 78035 Versailles cedex, France, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India, ICMCB, CNRS, Université Bordeaux 1, 87, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France, Université de Rennes 1, Institut de Physique de Rennes, UMR UR1-CNRS 6251, Campus Beaulieu, F-35042 Rennes, France, and Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza)—Pendro Cerbuna 12, 5009 Zaragoza, Spain
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38
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Abibat Salaudeen A, Kilner CA, Halcrow MA. Mononuclear and dinuclear iron thiocyanate and selenocyanate complexes of tris-pyrazolylmethane ligands. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Murray KS. Advances in Polynuclear Iron(II), Iron(III) and Cobalt(II) Spin‐Crossover Compounds. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800352] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Keith S. Murray
- School of Chemistry, Monash University, Building 23, Clayton, Victoria 3800, Australia, Fax: +61‐3‐99054597
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