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Lee KHK, Aebersold L, Peralta JE, Abboud KA, Christou G. Synthesis, Structure, and Magnetic Properties of an Fe 36 Dimethylarsinate Cluster: The Largest "Ferric Wheel". Inorg Chem 2022; 61:17256-17267. [PMID: 36251497 DOI: 10.1021/acs.inorgchem.2c02841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and characterization of a high-nuclearity FeIII/O/arsinate cluster is reported within the salt [Fe36O12(OH)6(O2AsMe2)63(O2CH)3(H2O)6](NO3)12 (1). The compound was prepared from the reaction of Fe(NO3)3·9H2O, dimethylarsinic acid (Me2AsO2H), and triethylamine in a 1:2:4 molar ratio in acetonitrile. The Fe36 cation of 1 is an unprecedented structural type consisting of nine Fe4 butterfly units of two types, three {FeIII4(μ3-O)2} units A, and six {FeIII4(μ3-O)(μ3-OH)} units B, linked by multiple bridging Me2AsO2- groups into an Fe36 triangular wheel/loop with C3 crystallographic and D3 virtual symmetry that looks like a guitar plectrum. The unusual structure has been rationalized on the basis of the different curvatures of units A and B, the presence of intra-Fe36 hydrogen bonding, and the tendency of Me2AsO2- groups to favor μ3-bridging modes. The cations stack into supramolecular nanotubes parallel to the crystallographic c axis and contain badly disordered solvent and NO3- anions. The cation of 1 is the highest-nuclearity "ferric wheel" to date and also the highest-nuclearity Fe/O cluster of any structural type with a single contiguous Fe/O core. Variable-temperature direct-current magnetic susceptibility data and alternating-current in-phase magnetic susceptibility data indicate that the cation of 1 possesses an S = 0 ground state and dominant antiferromagnetic interactions. The Fe2 pairwise Ji,j couplings were estimated by the combined use of a magnetostructural correlation for high-nuclearity FeIII/oxo clusters and density functional theory calculations using broken-symmetry methods and the Green's function approach. The three methods gave satisfyingly similar Ji,j values and allowed the identification of spin-frustration effects and the resulting relative spin-vector alignments and thus rationalization of the S = 0 ground state of the cation.
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Affiliation(s)
- Kenneth Hong Kit Lee
- Department of Chemistry, University of Florida, Gainesville, Florida32611-7200, United States
| | - Lucas Aebersold
- Department of Physics and Science of Advanced Materials, Central Michigan University, Mount Pleasant, Michigan48859, United States
| | - Juan E Peralta
- Department of Physics and Science of Advanced Materials, Central Michigan University, Mount Pleasant, Michigan48859, United States
| | - Khalil A Abboud
- Department of Chemistry, University of Florida, Gainesville, Florida32611-7200, United States
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida32611-7200, United States
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2
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Akhtar MN, Mereacre V, Novitchi G, AlDamen MA, Anson CE, Powell AK. Synthesis, structures, and magnetic properties of Fe4-Ln2 (Ln = Tb, Ho, and Er) clusters with N, N, N′, N′-tetrakis-(2-hydroxyethyl)ethylenediamine. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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3
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Lutsenko IA, Yambulatov DS, Kiskin MA, Nelyubina YV, Primakov PV, Efimov NN, Babeshkin KA, Khoroshilov AV, Maksimov YV, Novichikhin SV, Zueva EM, Sidorov AA, Eremenko IL. Mono- and tetranuclear Fe(II,III) complexes with primary 1,3-diaminopropane: Synthetic aspects, magnetic properties and thermal behavior. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Dimiza F, Hatzidimitriou AG, Sanakis Y, Papadopoulos AN, Psomas G. Trinuclear and tetranuclear iron(III) complexes with fenamates: Structure and biological profile. J Inorg Biochem 2021; 218:111410. [PMID: 33721718 DOI: 10.1016/j.jinorgbio.2021.111410] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/16/2023]
Abstract
The interaction of FeCl3 with the fenamate non-steroidal anti-inflammatory drugs has led to the formation and isolation of trinuclear iron(III) complexes, while in the presence of the nitrogen-donors 2,2'-bipyridine or pyridine tetranuclear iron(III) complexes were derived. The five resultant complexes were characterized by diverse techniques (including infrared, electronic and Mössbauer spectroscopy) and their crystal structures were determined by single-crystal X-ray crystallography. These complexes are the first structurally characterized Fe(III)-fenamato complexes. The complexes were evaluated for their ability to scavenge in vitro free radicals such as hydroxyl, 1,1-diphenyl-2-picrylhydrazyl and 2,2΄-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid). The in vitro binding affinity of the complexes to calf-thymus (CT) DNA was examined and their interaction with serum albumins was also investigated. In total, the complexes present promising activity against the radicals tested, and they may bind tightly to CT DNA possibly via intercalation and reversibly to serum albumins.
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Affiliation(s)
- Filitsa Dimiza
- Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Antonios G Hatzidimitriou
- Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Yiannis Sanakis
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Ag. Paraskevi, Attiki, Greece
| | - Athanasios N Papadopoulos
- Department of Nutritional Sciences and Dietetics, International Hellenic University, Sindos, Thessaloniki, Greece
| | - George Psomas
- Department of General and Inorganic Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
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Gorinchoy V. Synthesis and Structural Characterization of the Tetranuclear Iron(Iii) Cluster with Salicylic Acid. CHEMISTRY JOURNAL OF MOLDOVA 2020. [DOI: 10.19261/cjm.2020.758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A new tetra-homonuclear iron(III) cluster, [Fe4O2(Sal)4(H2O)6]·4DMA·0.75H2O, where Sal= salicylic acid and DMA= N,N-dimethylacetamide consolidated via two µ3-oxo- and four salicylate-bridges was synthesized and characterized by IR spectroscopic method as well as by single crystal X-ray diffraction analysis. The structure of the obtained tetranuclear compound consists of four FeIII atoms in a “butterfly” arrangement. The coordination sphere of each of the two central FeIII atoms is generated by two μ3-oxo-bridging atoms and four oxygen atoms provided by the tridentate-bridging Sal2- ligands, while the coordination polyhedron of another two iron atoms involve six oxygen atoms from three water molecules, two salicylic and one μ3-oxigen atom. The Fe-O distances within Fe-O-Fe bridge are of 2.102(3) Å (for wing-body) and 2.038(3) Å (for body-body).
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Bera SK, Lahiri GK. Unprecedented metal-metal bonded {Ru 4(μ 3-O) 2} butterfly core in oxido-carboxylato bridged mixed valence cluster-structural elucidation and electronic forms in accessible redox states. Dalton Trans 2020; 49:13573-13581. [PMID: 32970073 DOI: 10.1039/d0dt02741c] [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
Unprecedented metal-metal bonded oxido-carboxylato bridged mixed valence tetraruthenium cluster [(acac)6Ru(μ3-O)2(μ-CH3COO)3] 1 (S = 1/2) (acac = acetylacetonate) with {Ru4(μ3-O)2} "butterfly" core has been achieved via the reaction of Ru(acac)2(CH3CN)2 with excess CH3COONa (Ru : CH3COONa = 1 : 15) in refluxing EtOH-H2O (5 : 1). Structural analysis of 1 ascertained a unique Ru-Ru bonded (Ru2-Ru3: 2.5187(6) Å (DFT: 2.560 Å)) {Ru2(Ru-Ru)(μ3-O)2} butterfly core, unlike the reported other Fe4 or Mn4 derived "butterfly" core. The connectivity of Ru4(μ3-O)2 core in 1 with three Ru2(μ-CH3COO)3 and two each Ru-(acac)2/Ru-acac units resulted in interconnected four RuO6 octahedral entities. The doubly bridged μ3-O2- ions of the nearly planar central metal-metal bonded Ru2O2 core (Ru2-Ru3, "body" or "hinge") linked to the remaining two "wing-tip" Ru atoms (Ru1 and Ru4). Complex 1 with a S = 1/2 spin state displayed paramagnetically shifted 1H NMR over a wide chemical shift range in CDCl3 (δ, 13 to -30 ppm) and a metal based anisotropic EPR (g1 = 2.17, g2 = 2.01, g3 = 1.86; Δg = g1-g3 = 0.31 and 〈g〉 = [1/3(g12 + g22 + g32]1/2 = 2.01) at 100 K in CH3CN-toluene. The metal based one-electron reversible oxidation at 0.49 V and reduction at 0.485 V versus SCE of 1 led to the EPR inactive (even at 4 K) spin-coupled RuIIIRuIIIRuIVRuIV (S = 0) and RuIIIRuIIIRuIIIRuIII (S = 0) electronic configurations for 1+ and 1-, respectively. Mixed valence 1 and 1+ exhibited low-energy near-infrared (NIR) absorption bands at 1350 nm and 1156 nm, respectively, in CH3CN. A combined experimental (UV-vis-NIR and EPR spectroelectrochemistry) and theoretical (DFT) analysis indicated a delocalised mixed valence form of 1 ({Ru2(Ru-Ru)(μ3-O)2}).
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Affiliation(s)
- Sudip Kumar Bera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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Dey D, Patra M, Al-Hunaiti A, Yadav HR, Al-mherat A, Arar S, Maji M, Choudhury AR, Biswas B. Synthesis, structural characterization and C H activation property of a tetra-iron(III) cluster. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stewart CD, Arman H, Benavides B, Musie GT. Crystal structure of gluconate bound iron( iii) complex: synthesis, characterization and redox properties of the complex in aqueous solution. NEW J CHEM 2018. [DOI: 10.1039/c8nj01886c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis, characterization and redox properties of the first single crystal X-ray characterized, water soluble bis-gluconato-tetra-iron(iii) containing complex has been reported.
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Affiliation(s)
| | - Hadi Arman
- Department of Chemistry
- The University of Texas at San Antonio
- San Antonio
- USA
| | - Brenda Benavides
- Department of Chemistry
- The University of Texas at San Antonio
- San Antonio
- USA
| | - Ghezai T. Musie
- Department of Chemistry
- The University of Texas at San Antonio
- San Antonio
- USA
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Vignesh KR, Langley SK, Gartshore CJ, Moubaraki B, Murray KS, Rajaraman G. What Controls the Magnetic Exchange and Anisotropy in a Family of Tetranuclear {Mn2IIMn2III} Single-Molecule Magnets? Inorg Chem 2017; 56:1932-1949. [PMID: 28156106 DOI: 10.1021/acs.inorgchem.6b02527] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Stuart K. Langley
- School of Science and the Environment, Chemistry Division, Manchester Metropolitan University, Manchester, United Kingdom
| | | | - Boujemaa Moubaraki
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Keith S. Murray
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
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Dong J, Liu B, Yang B. Synthesis, crystal structure and magnetic properties of trinuclear chromium(III) basic carboxylate assembly: [Cr3O(salH)7(H2O)2] (salH2=salicylic acid), a new member of [Cr3O] family. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Mitchell KJ, Abboud KA, Christou G. Magnetostructural Correlation for High-Nuclearity Iron(III)/Oxo Complexes and Application to Fe5, Fe6, and Fe8 Clusters. Inorg Chem 2016; 55:6597-608. [DOI: 10.1021/acs.inorgchem.6b00769] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kylie J. Mitchell
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - George Christou
- Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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12
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Exchange Interactions in Cobalt(II) and Nickel(II) Complexes Containing M4(μ3-OH)2 Metal Cores with Distorted Rhombic Topology. THEOR EXP CHEM+ 2015. [DOI: 10.1007/s11237-015-9389-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Lu M, Chen T, Wang M, Jiang G, Lu T, Jiang G, Du J. A new μ3-oxo-centered tri-nuclear carboxyl bridged iron (III) complex with thio-methyl groups in the periphery: Structural, spectroscopic and electrochemical studies. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.12.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Arizaga L, Gancheff JS, Faccio R, Cañón-Mancisidor W, González R, Kremer C, Chiozzone R. Synthesis, crystal structure and magnetic properties of a novel tetranuclear oxo-bridged iron(III) butterfly. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.10.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Li ZY, Dai Y, Zhang H, Zhu J, Zhang JJ, Liu SQ, Duan CY. Square and Butterfly Tetranuclear [Co2Ln2] Clusters Built from the Same Building Blocks but Displaying Different Magnetic Properties: Structural Variation by Means of Solvent and the Radii of Ln3+Ions. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Synthesis, characterization and catalase-like activity of the tetranuclear iron(III) complex involving a (μ-oxo)(μ-hydroxo)bis(μ-alkoxo)tetra(μ-carboxylato)tetrairon core. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.07.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Sutradhar M, Roy Barman T, Drew MG, Rentschler E. Mononuclear and tetranuclear Fe(III) complexes with two different types of N, O donor Schiff base ligands. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.02.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Hou Y, Fang X, Kwon KD, Criscenti LJ, Davis D, Lambert T, Nyman M. Computational and Experimental Characterization of a Cagelike Fe
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Polycation. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yu Hou
- Sandia National Laboratories, Albuquerque, NM 87185, USA
- Current address: Oregon State University, Department of Chemistry, Corvallis, OR 97331, USA, Fax: +1‐515‐294‐0689, http://www.chem.orst.edu/nyman
| | - Xikui Fang
- US DOE Ames Laboratory and Iowa State University, The Ames Laboratory, 148 Spedding Hall, Ames, IA 50011‐3020, USA, http://www.ameslab.gov/dmse/xfang
| | - Kideok D. Kwon
- Sandia National Laboratories, Albuquerque, NM 87185, USA
- Current address: Department of Geology, Kangwon National University, Chuncheon, 200‐701, Korea
| | | | - Danae Davis
- Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Tim Lambert
- Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - May Nyman
- Sandia National Laboratories, Albuquerque, NM 87185, USA
- Current address: Oregon State University, Department of Chemistry, Corvallis, OR 97331, USA, Fax: +1‐515‐294‐0689, http://www.chem.orst.edu/nyman
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Wöckel S, Gałęzowska J, Dechert S, Meyer‐Klaucke W, Nordlander E, Meyer F. Zinc Complexes of a Bioinspired Binucleating Ligand Platform – Equilibria in Solution and Structures in the Solid State. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Simone Wöckel
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, Fax: +49‐551‐39‐3063, http://www.meyer.chemie.uni‐goettingen.de
| | - Joanna Gałęzowska
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, Fax: +49‐551‐39‐3063, http://www.meyer.chemie.uni‐goettingen.de
- New address: Department of Inorganic Chemistry, Faculty of Pharmacy, Wrocław Medical University, Szewska 38, 50‐139 Wrocław, Poland
| | - Sebastian Dechert
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, Fax: +49‐551‐39‐3063, http://www.meyer.chemie.uni‐goettingen.de
| | - Wolfram Meyer‐Klaucke
- Faculty of Science, Department of Chemistry, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany
| | - Ebbe Nordlander
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, Box 124, 22100 Lund, Sweden
| | - Franc Meyer
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany, Fax: +49‐551‐39‐3063, http://www.meyer.chemie.uni‐goettingen.de
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Sutradhar M, Carrella LM, Rentschler E. A Discrete μ4-Oxido Tetranuclear Iron(III) Cluster. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200396] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dutta AK, Maji SK, Dutta S, Robert Lucas C, Adhikary B. Syntheses, crystal structure, spectroscopic, redox and magnetic properties of oxo- and carboxylato-bridged polynuclear iron(III) complexes with phenolate- and pyridine-substituted benzimidazole ligands. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.06.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Nayak S, Novitchi G, Muche S, Luneau D, Dehnen S. Tetranuclear Homo- and Heterometallic Manganese(III) and Nickel(II) Complexes: Synthesis, Structure, and Magnetic Studies. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201100525] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Iasco O, Novitchi G, Jeanneau E, Tommasino JB, Roques N, Luneau D. Versatile chemical transformations of benzoxazole based ligands on complexation with 3d-metal ions. Inorg Chem 2012; 51:2588-96. [PMID: 22233278 DOI: 10.1021/ic202493z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two benzoxazoles derivative ligands were synthesized from the condensation of 3,5-di-tert-butyl-o-benzoquinone (DTBBQ) with ethanolamine or 1,3-diamino-2-hydroxypropane in methanol. Condensation of DTBBQ with ethanolamine gives the expected 5,7-di-tert-butyl-2-methylenhydroxylbenzoxazole (HL1) while with 1,3-diamino-2-hydroxypropane it gives (2-hydroxyethyl-2-{2,4-bis(1,1-dimethylethyl)-1-phenol-6 amino}-2{5,7-di-tert-butyl-benzoxazole}) (H(2)L2) with only one benzoxazole ring instead of the symmetric bis-benzoxazole derivative. The structure of HL1 and H(2)L2 were confirmed by NMR-spectroscopy and X-ray diffraction on a single crystal for HL1. The reaction of HL1 with CuCl(2) gives a mononuclear [Cu(II)(HL1)(2)Cl(2)] (1) complex for which the crystal structure shows that HL1 is preserved. In contrast, upon reaction with nickel(II), cobalt(II), and manganese(II) H(2)L2 is further oxidized and transformed in new ligands HL3 in mononuclear complexes [M(II)(L3)(2)] (M = Ni(II) (2); M = Co(II) (3)) and H(2)L4 in tetranuclear complex [Mn(II)(4)(HL4)(4)Cl(4)] (4) as found from the crystal structures of complexes 2-4. Electrochemical studies for complexes 2 and 3 evidence complicated redox properties. [Mn(II)(4)(HL4)(4)Cl(4)] (4) has a cubane-like structure with a "4 + 2" fashion The magnetic susceptibility of 4 is well fitted considering one Mn---Mn interaction J(a)(Mn(II)-Mn(II)) = -0.50(1) cm(-1) with g = 2.00(7).
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Affiliation(s)
- Olga Iasco
- Laboratoire des Multimatériaux et Interfaces (UMR 5615), Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
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Chesman ASR, Turner DR, Berry KJ, Chilton NF, Moubaraki B, Murray KS, Deacon GB, Batten SR. LnIII2MnIII2 heterobimetallic “butterfly” complexes displaying antiferromagnetic coupling (Ln = Eu, Gd, Tb, Er). Dalton Trans 2012; 41:11402-12. [DOI: 10.1039/c2dt31144e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Takemura Y, Okui Y, Kure B, Nakajima T, Tanase T, Mikuriya M, Takahashi M. Octanuclear iron(III) complexes supported by Kemp’s tricarboxylate ligands. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.09.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Arizaga L, Cerdá M, Faccio R, Mombrú A, Novak M, González R, Kremer C, Chiozzone R. Synthesis, crystal structures, electrochemical and magnetic properties of polynuclear {Fe4} and {Fe8Na4} carboxylate/picolinate clusters. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.02.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yuan N, Sheng T, Tian C, Hu S, Fu R, Zhu Q, Tan C, Wu X. Syntheses, structures and properties of three-dimensional lanthanide frameworks constructed with a trigonal anti-prismatic lanthanide cluster. CrystEngComm 2011. [DOI: 10.1039/c0ce00848f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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28
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Baca SG, Filippova IG, Keene TD, Botezat O, Malaestean IL, Stoeckli-Evans H, Kravtsov VC, Chumacov I, Liu SX, Decurtins S. Iron(III)-Pivalate-Based Complexes with Tetranuclear {Fe4(μ3-O)2}8+ Cores and N-Donor Ligands: Formation of Cluster and Polymeric Architectures. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000838] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kantacha A, Buchholz R, Smith SJ, Schenk G, Gahan LR. Phosphate ester cleavage promoted by a tetrameric iron(III) complex. J Biol Inorg Chem 2010; 16:25-32. [DOI: 10.1007/s00775-010-0696-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Accepted: 08/12/2010] [Indexed: 11/28/2022]
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30
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Murali M, Nayak S, Sánchez Costa J, Ribas J, Mutikainen I, Turpeinen U, Clémancey M, Garcia-Serres R, Latour JM, Gamez P, Blondin G, Reedijk J. Discrete tetrairon(III) cluster exhibiting a square-planar Fe4(mu4-O) core: structural and magnetic properties. Inorg Chem 2010; 49:2427-34. [PMID: 20121207 DOI: 10.1021/ic902360x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aerobic reaction of the Schiff-base ligand N-(benzimidazol-2-yl)salicylaldimine (Hbisi) with iron(II) perchlorate in methanol leads to the formation of the remarkable coordination compound [Fe(4)(mu(4)-O)(mu-MeO)(4)(bisi)(4)](ClO(4))(2) x 4 MeOH (1), whose single-crystal X-ray structure reveals the presence of a discrete Fe(III)(4)(mu(4)-O) core. Magnetic and Mossbauer studies both show that the exchange interaction within the square tetranuclear iron(III) unit is dominated by the central bridging mu(4)-oxido ligand, the involvement of the mu-methoxido bridges being negligible.
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Affiliation(s)
- Mariappan Murali
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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31
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Alborés P, Rentschler E. Rational design of covalently bridged [FeIII2MIIO] clusters. Dalton Trans 2010; 39:5005-19. [DOI: 10.1039/b925214b] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Preparation and characterization of novel oxo-centered basic p-chlorobenzoic bridging trinuclear complexes. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2010. [DOI: 10.2298/jsc090825066k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Three new oxo-centered trinuclear complexes, one of them a mixed-valence complex [Mn3O(C7H4O2Cl)6(Py)3]Py (1) and the others, mixed-metal complexes of [Fe2MnO(C7H4O2Cl)6(Py)3]NO3 (2) and [Fe2CoO(C7H4O2Cl)6(Py)3] (3) were synthesized by the direct reaction between metal nitrates and p-chlorobenzoic acid. These complexes were characterized by elemental analyses (CHN), atomic absorption spectroscopy and spectral (IR, electronic) studies. These are new type of oxo-bridged mixed-metal complexes in which the carboxylate ligand is pchlorobenzoic acid. The UV spectra of the complexes exhibited a strong band in the region 42,500 cm-1 which is related to the (? ? ?*) transitions of the pyridine ligand. The IR spectra of these compounds showed two strong stretching vibrations bands, indicating a bridging coordination mode of the carboxylic group of the ligand in the complexes.
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33
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Gomez-Coca S, Cauchy T, Ruiz E. Extended Fe4 butterfly complexes: theoretical analysis of magnetic properties and magnetostructural maps. Dalton Trans 2010; 39:4832-7. [DOI: 10.1039/b925699g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Rabe V, Frey W, Baro A, Laschat S, Bauer M, Bertagnolli H, Rajagopalan S, Asthalter T, Roduner E, Dilger H, Glaser T, Schnieders D. Syntheses, Crystal Structures, Spectroscopic Properties, and Catalytic Aerobic Oxidations of Novel Trinuclear Non-Heme Iron Complexes. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900516] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Synthesis, structure and electrochemical properties of the cationic complex tris-(imidazolidine-1,10-phenanthroline)iron(II). INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.02.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Newton GN, Cooper GJT, Schuch D, Shiga T, Khanra S, Long DL, Oshio H, Cronin L. cis-Tach based pentadecadentate ligands as building blocks in the synthesis of Fe III and Pd II coordination clusters. Dalton Trans 2009:1549-53. [PMID: 19421597 DOI: 10.1039/b815200d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A dodecanuclear Fe(III) complex, consisting of two {Fe(6)} units coupled across a single hydroxy-bridge and a cage-like Pd(II) trimer were synthesised using the highly branched, pentadecadentate chelating ligand cis,cis-1,3,5-cyclohexanetriamine-N,N,N',N',N'',N''-hexaacetic acid (H(6)hact).
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Affiliation(s)
- Graham N Newton
- WestCHEM, Department of Chemistry, The University of Glasgow, University Avenue, Glasgow, UK
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37
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Synthesis, spectral and thermal characterization of nano-sized, oxo-centered, trinuclear carboxylate-bridged chromium(III) complexes of hydroxycarboxylic acids. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.12.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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38
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O'Brien TA, Jones CM. Comparison of Semiempirical ZILSH and DFT Calculations of Exchange Constants in Fe4 Butterfly Complexes. J Chem Theory Comput 2009; 5:68-79. [PMID: 26609821 DOI: 10.1021/ct700208m] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Magnetic interactions in a series of tetranuclear Fe(3+) complexes with the butterfly core structure have been studied with semiempirical ZILSH and density functional theory (DFT) calculations (B3LYP functional). A theoretical analysis of a previously used method of estimating exchange constants from a restricted number of spin configurations reveals systematic errors arising from asymmetry in the complexes, which cause large variations in results with different choices of spin configurations. Correction factors are derived that yield the correct results obtained from full configuration space (FCS) calculations. Exchange constants obtained from DFT FCS calculations for the "body-body" interaction were large and ferromagnetic, in disagreement with values obtained from empirical fits of magnetic susceptibility data for the complexes, established magnetostructural correlations in polynuclear Fe(3+) complexes, and ZILSH calculations. DFT calculations also gave unreasonably large antiferromagnetic exchange constants for interaction between "wingtip" ions that are not directly bridged, again in disagreement with ZILSH calculations. Estimates of exchange constants for interaction of body and wingtip ions obtained with ZILSH and DFT were similar, with the ZILSH values in slightly better agreement with empirical fits. Considering all interactions, the ZILSH method provides results in better accord with experiment than DFT for these complexes. Additional comparisons of exchange constants obtained with different spin coupling schemes showed that values appropriate for two-center spin eigenfunctions gave consistently better results than values calculated with the local spin operator. The effect of basis set was found to be very small. A brief analysis of these findings is given.
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Affiliation(s)
- Ted A O'Brien
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, Indiana 46202
| | - Candace M Jones
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, 402 North Blackford Street, Indianapolis, Indiana 46202
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39
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Synthesis and characterization of novel oxo-bridged, trinuclear mixed-metal complexes of Cr(III) and Fe(III). JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2009. [DOI: 10.2298/jsc0904401y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Two new heterotrinuclear p-chlorobenzoates, [Fe2CrO(C7H4O2Cl)6(py)3]NO3 (1) and [Cr2FeO(C7H4O2Cl)6(py)3]NO3 (2) were prepared as nitrate salts and characterized by elemental analyses (CHN), spectroscopic (infrared, electronic) studies and atomic absorption spectroscopy. These complexes are a new type of oxo-bridged mixed-metal complex in which the carboxylate ligand is p-chlorobenzoic acid. Bridging coordination modes for the carboxylates were indicated by the presence of ?asym (M2M'O) vibrations in the infrared spectra.
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40
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Roy M, Santhanagopal R, Chakravarty AR. DNA binding and oxidative DNA cleavage activity of (μ-oxo)diiron(iii) complexes in visible light. Dalton Trans 2009:1024-33. [DOI: 10.1039/b815215b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Lan Y, Novitchi G, Clérac R, Tang JK, Madhu NT, Hewitt IJ, Anson CE, Brooker S, Powell AK. Di-, tetra- and hexanuclear iron(III), manganese(II/III) and copper(II) complexes of Schiff-base ligands derived from 6-substituted-2-formylphenols. Dalton Trans 2009:1721-7. [DOI: 10.1039/b818113f] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Raptopoulou CP, Sanakis Y, Boudalis AK. Aerobic FeIII-FeIIReduction in the Presence of 2,4,6-Tri(2-pyridyl)-1,3,5-triazine and Benzilic Acid: Synthesis and Characterization of a Heptacoordinate FeII-Nitrato Complex. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800560] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Boudalis AK, Clemente-Juan JM, Dahan F, Psycharis V, Raptopoulou CP, Donnadieu B, Sanakis Y, Tuchagues JP. Reversible Core-Interconversion of an Iron(III) Dihydroxo Bridged Complex. Inorg Chem 2008; 47:11314-23. [DOI: 10.1021/ic800716r] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Athanassios K. Boudalis
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Juan Modesto Clemente-Juan
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Françoise Dahan
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Vassilis Psycharis
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Catherine P. Raptopoulou
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Bruno Donnadieu
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Yiannis Sanakis
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
| | - Jean-Pierre Tuchagues
- Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece, Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205, route de Narbonne, 31077 Toulouse Cedex 04, France, Instituto de Ciencia Molecular, Universidad de Valencia, c/ Doctor Moliner, 50, 46100 Burjassot, Spain, and Department of Chemistry, University of California at Riverside, Riverside, California 92521
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44
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Stamatatos TC, Christou AG, Mukherjee S, Poole KM, Lampropoulos C, Abboud KA, O’Brien TA, Christou G. High-Yield Syntheses and Reactivity Studies of Fe10 “Ferric Wheels”: Structural, Magnetic, and Computational Characterization of a Star-Shaped Fe8 Complex. Inorg Chem 2008; 47:9021-34. [DOI: 10.1021/ic801038r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Theocharis C. Stamatatos
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Alexander G. Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Shreya Mukherjee
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Katye M. Poole
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Christos Lampropoulos
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Khalil A. Abboud
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - Ted A. O’Brien
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, and Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana 46202-3274
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45
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Martinez J, Aiello I, Bellusci A, Crispini A, Ghedini M. Tetranuclear zinc complexes of ligands containing the 2-pyridyl oxime chelating site. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.12.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Singh AK, Jacob W, Boudalis AK, Tuchagues JP, Mukherjee R. A Tetragonal Core with Asymmetric Iron Environments Supported Solely by Bis(μ-OH){μ-(O–H···O)} Bridging and Terminal Pyridine Amide (N, O) Coordination: A New Member of the Tetrairon(III) Family. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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Gao FX, Gu W, Yang YS, Ma XF, Qian J, Yan SP. An oxo-centered carboxylate-bridged trinuclear complex: synthesis, crystal structure, and magnetic properties of [Cr3(μ3-O)(HL)2(H2O)3](ClO4)3. J COORD CHEM 2008. [DOI: 10.1080/00958970701583946] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Feng-Xian Gao
- a Department of Chemistry , Nankai University 300071 , Tianjin, People's Republic of China
| | - Wen Gu
- a Department of Chemistry , Nankai University 300071 , Tianjin, People's Republic of China
| | - Yong-Sheng Yang
- a Department of Chemistry , Nankai University 300071 , Tianjin, People's Republic of China
| | - Xiao-Fang Ma
- a Department of Chemistry , Nankai University 300071 , Tianjin, People's Republic of China
| | - Jing Qian
- a Department of Chemistry , Nankai University 300071 , Tianjin, People's Republic of China
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48
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Pichon C, Dolbecq A, Mialane P, Marrot J, Rivière E, Goral M, Zynek M, McCormac T, Borshch S, Zueva E, Sécheresse F. Fe2 and Fe4 Clusters Encapsulated in Vacant Polyoxotungstates: Hydrothermal Synthesis, Magnetic and Electrochemical Properties, and DFT Calculations. Chemistry 2008; 14:3189-99. [DOI: 10.1002/chem.200700896] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Boudalis A, Sanakis Y, Clemente-Juan J, Donnadieu B, Nastopoulos V, Mari A, Coppel Y, Tuchagues JP, Perlepes S. A Family of Enneanuclear Iron(II) Single-Molecule Magnets. Chemistry 2008; 14:2514-26. [DOI: 10.1002/chem.200701487] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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50
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Liu JQ, Wang YY, Ma LF, Zhang WH, Zeng XR, Zhong F, Shi QZ, Peng SM. Three new supramolecular networks formed via hydrogen bonding interactions: Syntheses, crystal structures and magnetic properties. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.06.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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