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Bouchey C, Shopov DY, Gruen AD, Tolman WB. Mimicking the Cu Active Site of Lytic Polysaccharide Monooxygenase Using Monoanionic Tridentate N-Donor Ligands. ACS OMEGA 2022; 7:35217-35232. [PMID: 36211076 PMCID: PMC9535706 DOI: 10.1021/acsomega.2c04432] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
In an effort to prepare small molecule mimics of the active site of lytic polysaccharide monooxygenase (LPMO), three monoanionic tridentate N donor ligands comprising a central deprotonated amide group flanked by two neutral donors were prepared, and their coordination chemistry with Cu(I) and Cu(II) was evaluated. With Cu(I), a dimer formed, which was characterized by X-ray crystallography and NMR spectroscopy. A variety of mononuclear and dinuclear Cu(II) species with a range of auxiliary ligands (MeCN, Cl-, OH-, OAc-, OBz-, CO3 2-) were prepared and characterized by X-ray diffraction and various spectroscopies (UV-vis, EPR). The complexes exhibit structural similarities to the LPMO active site.
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Affiliation(s)
- Caitlin
J. Bouchey
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Dimitar Y. Shopov
- Department
of Chemistry, Washington University in St.
Louis, One Brookings Drive, Campus Box 1134, St.
Louis, Missouri 63130, United States
| | - Aaron D. Gruen
- Department
of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - William B. Tolman
- Department
of Chemistry, Washington University in St.
Louis, One Brookings Drive, Campus Box 1134, St.
Louis, Missouri 63130, United States
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2
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Ragno D, De Risi C, Massi A, Di Carmine G, Toldo S, Leonardi C, Bortolini O. Regiodivergent Synthesis of Benzothiazole‐based Isosorbide Imidates by Oxidative N‐Heterocyclic Carbene Catalysis. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniele Ragno
- University of Ferrara: Universita degli Studi di Ferrara Chemical, Pharmaceutical and Agricultural Sciences ITALY
| | - Carmela De Risi
- University of Ferrara: Universita degli Studi di Ferrara Chemical, Pharmaceutical and Agricultural Sciences ITALY
| | - Alessandro Massi
- University of Ferrara: Universita degli Studi di Ferrara DepartmentEnvironmental and Prevention Sciences ITALY
| | - Graziano Di Carmine
- University of Ferrara: Universita degli Studi di Ferrara Chemical, Pharmaceutical and Agricultural Sciences ITALY
| | - Sofia Toldo
- University of Ferrara: Universita degli Studi di Ferrara Environmental and Prevention Sciences ITALY
| | - Costanza Leonardi
- University of Ferrara: Universita degli Studi di Ferrara Chemical, Pharmaceutical and Agricultural Sciences ITALY
| | - Olga Bortolini
- Universita of Ferrara DepartmentEnvironmental and Prevention Sciences Via Borsari 46 44121 Ferrara ITALY
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3
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Deghadi RG, Mohamed GG, Mahmoud NF. Bioactive La (III), Er (III), Yb (III), Ru (III) and Ta(V) Complexes of New Organometallic Schiff Base: Preparation, Structural Characterization, Antibacterial, Anticancer activities and MOE Studies. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Reem G. Deghadi
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
| | - Nessma F. Mahmoud
- Chemistry Department, Faculty of Science Cairo University Giza Egypt
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4
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Velluti F, Acevedo A, Serra G, Ellena J, Borthagaray G, Facchin G, Scarone L, Alvarez N, Torre MH. Novel bisthiazole ligand and its copper(II) complex with unusual seven membered ring: Synthesis, characterization, experimental and theoretical study of the effect of ligand flexibility, and antimicrobial activity. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Meena BI, Lakk-Bogáth D, Keszei S, Kaizer J. Bleach catalysis in aqueous medium by iron(III)-isoindoline complexes and hydrogen peroxide. CR CHIM 2021. [DOI: 10.5802/crchim.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Toda T, Kuwata S. Synthesis, Structures, and Reactivities of Iron Complexes Bearing an Isoindoline‐Based, Polyprotic Pincer‐Type Pyrazole Ligand. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tatsuro Toda
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 E4-1 O-okayama Meguro-ku Tokyo 152-8552 Japan
| | - Shigeki Kuwata
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 E4-1 O-okayama Meguro-ku Tokyo 152-8552 Japan
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7
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Abstract
The bis(pyridylimino)isoindoline (BPI) ligand is a tridentate chelate that binds to metals via a meridional coordination mode. However, when this ligand forms a complex with Re(CO)3, an almost exclusively facial moiety, the BPI ligand deforms to coordinate in a facial mode. We have in-vestigated this deformation via structural and theoretical means, and the non-planar binding mode of the ligand bathochromically shifts the metal to ligand charge transfer (MLCT) transition.
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8
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Lenartowicz P, Psurski M, Kotynia A, Pieniężna A, Cuprych M, Poniatowska K, Brasuń J, Kafarski P. Dipeptides of S-Substituted Dehydrocysteine as Artzyme Building Blocks: Synthesis, Complexing Abilities and Antiproliferative Properties. Int J Mol Sci 2021; 22:ijms22042168. [PMID: 33671589 PMCID: PMC7927096 DOI: 10.3390/ijms22042168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Dehydropeptides are analogs of peptides containing at least one conjugate double bond between α,β-carbon atoms. Its presence provides unique structural properties and reaction centre for chemical modification. In this study, the series of new class of dipeptides containing S-substituted dehydrocysteine with variety of heterocyclic moieties was prepared. The compounds were designed as the building blocks for the construction of artificial metalloenzymes (artzymes). Therefore, the complexing properties of representative compounds were also evaluated. Furthermore, the acknowledged biological activity of natural dehydropeptides was the reason to extend the study for antiproliferative action of against several cancer cell lines. METHODS The synthetic strategy involves glycyl and phenylalanyl-(Z)-β-bromodehydroalanine as a substrate in one pot addition/elimination reaction of thiols. After deprotection of N-terminal amino group the compounds with triazole ring were tested as complexones for copper(II) ions using potentiometric titration and spectroscopic techniques (UV-Vis, CD, EPR). Finally, the antiproliferative activity was evaluated by sulforhodamine B assay. RESULTS AND CONCLUSIONS A simple and efficient procedure for preparation of dipeptides containing S-substituded dehydrocysteine was provided. The peptides containing triazole appeared to be strong complexones of copper(II) ions. Some of the peptides exhibited promising antiproliferative activities against number of cancer cell lines, including cell lines resistant to widely used anticancer agent.
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Affiliation(s)
- Paweł Lenartowicz
- Faculty of Chemistry, University of Opole, ul. Oleska 48, 45-052 Opole, Poland
- Correspondence: (P.L.); (P.K.)
| | - Mateusz Psurski
- Laboratory of Experimental Anticancer Therapy, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, ul. R. Weigla 12, 53-114 Wrocław, Poland; (M.P.); (M.C.); (K.P.)
| | - Aleksandra Kotynia
- Department of Inorganic Chemistry, Wrocław Medical University, ul. Borowska 211 A, 50-556 Wrocław, Poland; (A.K.); (A.P.); (J.B.)
| | - Aleksandra Pieniężna
- Department of Inorganic Chemistry, Wrocław Medical University, ul. Borowska 211 A, 50-556 Wrocław, Poland; (A.K.); (A.P.); (J.B.)
| | - Monika Cuprych
- Laboratory of Experimental Anticancer Therapy, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, ul. R. Weigla 12, 53-114 Wrocław, Poland; (M.P.); (M.C.); (K.P.)
| | - Klaudia Poniatowska
- Laboratory of Experimental Anticancer Therapy, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, ul. R. Weigla 12, 53-114 Wrocław, Poland; (M.P.); (M.C.); (K.P.)
| | - Justyna Brasuń
- Department of Inorganic Chemistry, Wrocław Medical University, ul. Borowska 211 A, 50-556 Wrocław, Poland; (A.K.); (A.P.); (J.B.)
| | - Paweł Kafarski
- Department of Bioorganic Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
- Correspondence: (P.L.); (P.K.)
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9
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Synthesis and structure of mono and bis {1,3-bis(2- pyridylimino)isoindoline} supported 3d transition metal complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129344] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Gaire S, Schrage BR, Nemykin VN, Ziegler CJ. 1,3-Bis(pyridineylidene)isoindoline: an isoindoline chelate with a stretched electronic structure. Dalton Trans 2021; 50:826-829. [PMID: 33399604 DOI: 10.1039/d0dt04347h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A bridging carbon analog of the well-studied bis(pyridyl)iminoisoindoline (BPI) can be produced via a one step reaction between diiminoisoindoline and pyridine-2-acetonitrile. The resultant bis(pyridineylidene)isoindoline (BPYI) is structurally analogous to BPI and can readily form metal complexes. However, it exhibits a markedly different electronic structure with intense absorption bands in the visible region of the spectrum.
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Affiliation(s)
- Sanjay Gaire
- Department of Chemistry, University of Akron, Akron, OH 44325, USA.
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11
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Benkó T, Lukács D, Frey K, Németh M, Móricz MM, Liu D, Kováts É, May NV, Vayssieres L, Li M, Pap JS. Redox-inactive metal single-site molecular complexes: a new generation of electrocatalysts for oxygen evolution? Catal Sci Technol 2021. [DOI: 10.1039/d1cy01087e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Bypassing the metal-based oxidation in a Cu-containing water oxidation catalytic system.
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Affiliation(s)
- Tímea Benkó
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
| | - Dávid Lukács
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
| | - Krisztina Frey
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
| | - Miklós Németh
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
| | - Márta M. Móricz
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
| | - Dongyu Liu
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Éva Kováts
- Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, P.O. Box 49, H-1525 Budapest, Hungary
| | - Nóra V. May
- Centre for Structural Science, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - Lionel Vayssieres
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Mingtao Li
- International Research Center for Renewable Energy (IRCRE), State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - József S. Pap
- Centre for Energy Research, Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Konkoly-Thege street 29-33, 1121 Budapest, Hungary
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12
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An Iron(III) Complex with Pincer Ligand—Catalytic Water Oxidation through Controllable Ligand Exchange. REACTIONS 2020. [DOI: 10.3390/reactions1010003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pincer ligands occupy three coplanar sites at metal centers and often support both stability and reactivity. The five-coordinate [FeIIICl2(tia-BAI)] complex (tia-BAI− = 1,3-bis(2’-thiazolylimino)isoindolinate(−)) was considered as a potential pre-catalyst for water oxidation providing the active form via the exchange of chloride ligands to water molecules. The tia-BAI− pincer ligand renders water-insolubility to the Fe–(tia-BAI) assembly, but it tolerates the presence of water in acetone and produces electrocatalytic current in cyclic voltammetry associated with molecular water oxidation catalysis. Upon addition of water to [FeIIICl2(tia-BAI)] in acetone the changes in the Fe3+/2+ redox transition and the UV-visible spectra could be associated with solvent-dependent equilibria between the aqua and chloride complex forms. Immobilization of the complex from methanol on indium-tin-oxide (ITO) electrode by means of drop-casting resulted in water oxidation catalysis in borate buffer. The O2 detected by gas chromatography upon electrolysis at pH 8.3 indicates >80% Faraday efficiency by a TON > 193. The investigation of the complex/ITO assembly by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) before and after electrolysis, and re-dissolution tests suggest that an immobilized molecular catalyst is responsible for catalysis and de-activation occurs by depletion of the metal.
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13
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Design and Fine-Tuning Redox Potentials of Manganese(II) Complexes with Isoindoline-Based Ligands: H2O2 Oxidation and Oxidative Bleaching Performance in Aqueous Solution. Catalysts 2020. [DOI: 10.3390/catal10040404] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A series of divalent manganese complexes [MII(HL1–6)Cl2] with the 1,3-bis(2’-Ar-imino)isoindolines (HLn, n = 1–6, Ar = pyridyl, 4-methylpyridyl, imidazolyl, thiazolyl, benzimidazolyl and N-methylbenzimidazolyl, respectively) including the previously reported ligands (HL1–2, 4–6) and complexes ([MII(HL1,5)Cl2]) have been prepared and characterized by electrochemical and spectroscopic methods. In these complexes, it was possible to control the redox potential of the metal center by varying the aryl substituent on the bis-iminoisoindoline moiety, and investigate its effect in a catalase-like reaction, and oxidative bleaching process in buffered aqueous solution. The kinetics of the dismutation of H2O2 into H2O and O2, and the oxidative degradation of morin by H2O2 were investigated in buffered water, where the reactivity of the catalysts in both systems was markedly influenced by the redox and Lewis acidic properties of the metal centers and the concentration of the bicarbonate ions. Both the catalase-like and bleaching activity of the catalysts showed a linear correlation with the MnIII/MnII redox potentials. The E1/2 spans a 561 mV range from 388 mV (Ar = benzymidazolyl) to 948 mV (Ar = 4-methylpyridyl) vs. the SCE. The amount of bicarbonate is a critical issue for the in situ formation of peroxycarbonate as a versatile oxidant, and its participation in the formation of high valent MnIV = O species.
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14
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Szyrwiel Ł, Shimura M, Setner B, Szewczuk Z, Malec K, Malinka W, Brasun J, Pap JS. SOD-Like Activity of Copper(II) Containing Metallopeptides Branched By 2,3-Diaminopropionic Acid: What the N-Termini Elevate, the C-Terminus Ruins. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-9717-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Székács I, Tokarz P, Horvath R, Kovács K, Kubas A, Shimura M, Brasun J, Murzin V, Caliebe W, Szewczuk Z, Paluch A, Wojnárovits L, Tóth T, Pap JS, Szyrwiel Ł. In vitro SOD-like activity of mono- and di-copper complexes with a phosphonate substituted SALAN-type ligand. Chem Biol Interact 2019; 306:78-88. [DOI: 10.1016/j.cbi.2019.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/20/2019] [Accepted: 04/01/2019] [Indexed: 10/27/2022]
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16
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De S, Chamoreau LM, El Said H, Li Y, Flambard A, Boillot ML, Tewary S, Rajaraman G, Lescouëzec R. Thermally-Induced Spin Crossover and LIESST Effect in the Neutral [Fe II( Mebik) 2(NCX) 2] Complexes: Variable-Temperature Structural, Magnetic, and Optical Studies (X = S, Se; Mebik = bis(1-methylimidazol-2-yl)ketone). Front Chem 2018; 6:326. [PMID: 30186827 PMCID: PMC6111792 DOI: 10.3389/fchem.2018.00326] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/11/2018] [Indexed: 11/17/2022] Open
Abstract
Two new iron(II) neutral complexes of bis(1-methylimidazol-2-yl)ketone (Mebik) with molecular formula [FeII(Mebik)2(NCS)2] (1) and [FeII(Mebik)2(NCSe)2] (2) have been synthesized and characterized by magnetic measurements, single-crystal X-ray diffraction, and solid state UV-vis spectroscopy. The temperature dependent magnetic susceptibility measurements of crystalline samples of both compound show the occurrence of a gradual spin transition centered at T1/2 = 260 K and 326 K, respectively. The crystal structures of both compounds were determined at different temperatures, below and above the transition, in order to detect the structural changes associated with the spin transition. The main structural modifications, when passing from the low-spin to the high-spin form, consist of an important lengthening of the Fe-N(Mebik) and Fe-N (C-S/Se) distances (by ca. 0.20 and 0.18 Å, respectively) and a noticeable variation of the N-Fe-N angles, leading to a more distorted [Fe-N6] octahedron. The spin-transition phenomenon also affects the optical properties, with significant decrease of the intensity of the Metal-to-Ligand charge transfer band upon increasing the temperature. Finally, both complexes exhibit a light-induced excited spin-state trapping under laser light irradiation at low temperature. DFT calculations were also carried out on these complexes in order to rationalize the theoretically predicted magnetic and optical behavior with those of the experimental one. The results clearly highlights the dramatic alteration of the magneto-structural behavior of the tris-chelate [FeII(Mebik)3]2+ spin-crossover complex upon substituting one Mebik with NCS and NCSe ligands.
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Affiliation(s)
- Siddhartha De
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Lise-Marie Chamoreau
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Hasnaa El Said
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Yanling Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Alexandrine Flambard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Marie-Laure Boillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS, Bat 420, Univ. Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Subrata Tewary
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Rodrigue Lescouëzec
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
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17
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De S, Tewary S, Garnier D, Li Y, Gontard G, Lisnard L, Flambard A, Breher F, Boillot ML, Rajaraman G, Lescouëzec R. Solution and Solid-State Study of the Spin-Crossover [FeII
(R-bik)3
](BF4
)2
Complexes (R = Me, Et, Vinyl). Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Siddhartha De
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
| | - Subrata Tewary
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Powai, Mumbai Maharashtra India
| | - Delphine Garnier
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
- Institut für Anorganische Chemie; Karlsruhe Institut für Technologie (KIT); Campus Süd, Engesserstr. 15, Geb. 30.45 76131 Karlsruhe Germany
| | - Yanling Li
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
| | - Geoffrey Gontard
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
| | - Laurent Lisnard
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
| | - Alexandrine Flambard
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
| | - Frank Breher
- Institut für Anorganische Chemie; Karlsruhe Institut für Technologie (KIT); Campus Süd, Engesserstr. 15, Geb. 30.45 76131 Karlsruhe Germany
| | - Marie-Laure Boillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; Univ. Paris Sud, Université Paris-Saclay, CNRS; 91405 Orsay CEDEX France
| | - Gopalan Rajaraman
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Powai, Mumbai Maharashtra India
| | - Rodrigue Lescouëzec
- Institut Parisien de Chimie Moléculaire (UMR 8232); Université Paris 06, Sorbonne Universités; 4 Place Jussieu 75252 Paris CEDEX 5 France
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18
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Manzanera-Estrada ME, Cruz-Ramírez M, Flores-Alamo M, Gracia y Jiménez JM, Galindo-Murillo R, García-Ramos JC, Ruiz-Azuara L, Ortiz-Frade L. Effect of tunable redox behavior of bis chelate substituted 1,10-phenantroline Cu(II) complexes on its reaction with superoxide anion in DMSO. Toward a simple criterion to identify a SOD-like mechanism. J Inorg Biochem 2017; 175:118-128. [DOI: 10.1016/j.jinorgbio.2017.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 10/19/2022]
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19
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Kotynia A, Janek T, Czyżnikowska Ż, Bielińska S, Kamysz W, Brasuń J. The Analysis of Cu(II)/Zn(II) Cyclopeptide System as Potential Cu,ZnSOD Mimic Center. Int J Pept Res Ther 2017; 23:431-439. [PMID: 29170621 PMCID: PMC5681615 DOI: 10.1007/s10989-017-9574-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2017] [Indexed: 01/24/2023]
Abstract
In this paper are presented the features of copper (II) and zinc (II) heteronuclear complexes of the cyclic peptide—c(HKHGPG)2. The coordination properties of ligand were studied by potentiometric, UV–Vis and CD spectroscopic methods. These experiments were carried out in aqueous solutions at 298 K depending on pH. It turned out that in a physiological pH dominates Cu(II)/Zn(II) complex ([CuZnL]4+) which could mimic the active center of superoxide dismutase (Cu,ZnSOD). In next step we performed in vitro research on Cu,ZnSOD activity for [CuZnL]4+ complex existing in 7.4 pH by the method of reduction of nitroblue tetrazolium (NBT). Also mono- and di-nuclear copper (II) complexes of this ligand were examined. The ability of inhibition free radical reaction were compared for all complexes. The results of these studies show that Cu(II) mono-, di-nuclear and Cu(II)/Zn(II) complexes becoming to new promising synthetic superoxide dismutase mimetics, and should be considered for further biological assays.
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Affiliation(s)
- Aleksandra Kotynia
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211a, 50-552 Wroclaw, Poland
| | - Tomasz Janek
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211a, 50-552 Wroclaw, Poland
| | - Żaneta Czyżnikowska
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211a, 50-552 Wroclaw, Poland
| | - Sylwia Bielińska
- Department of Inorganic Chemistry, Medical University of Gdansk, 80-416 Gdansk, Poland
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Medical University of Gdansk, 80-416 Gdansk, Poland
| | - Justyna Brasuń
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211a, 50-552 Wroclaw, Poland
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Marciniak A, Cebrat M, Brasuń J. The Coordination Abilities of New Cyclic Analogs of Somatostatin. Int J Pept Res Ther 2016; 23:135-143. [PMID: 28250719 PMCID: PMC5306305 DOI: 10.1007/s10989-016-9546-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 11/24/2022]
Abstract
Two new somatostatin analogs with a characteristic part of the sequence -c(Cys-Phe-Trp-Lys-Thr-Cys)- and with two histidine and two aspartic acid moieties in their structures were synthesized and analyzed in terms of their coordination abilities with copper (II) ions. Both peptides bind Cu(II) effectively. Ligands form 4N complexes with \documentclass[12pt]{minimal}
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\begin{document}$$\left\{ {{\text{N}}_{\text{Im}} ,{ 3} {\text{N}}_{\text{amide}}^{ - } } \right\}$$\end{document}NIm,3Namide- binding mode in a basic range of pH. But in spite of very similar sequences of the two peptides a significant difference in the effectiveness of the binding of copper (II) ions was observed.
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Affiliation(s)
- Aleksandra Marciniak
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211A, 50-556 Wrocław, Poland
| | - Marek Cebrat
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Justyna Brasuń
- Department of Inorganic Chemistry, Wroclaw Medical University, Borowska 211A, 50-556 Wrocław, Poland
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21
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Caballero AB, Terol-Ordaz L, Espargaró A, Vázquez G, Nicolás E, Sabaté R, Gamez P. Histidine-Rich Oligopeptides To Lessen Copper-Mediated Amyloid-β Toxicity. Chemistry 2016; 22:7268-80. [DOI: 10.1002/chem.201600286] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Ana B. Caballero
- Department of Inorganic and Organic Chemistry; University of Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Laia Terol-Ordaz
- Department of Inorganic and Organic Chemistry; University of Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Alba Espargaró
- Department of Physical Chemistry; Faculty of Pharmacy and; Institute of Nanoscience and Nanotechnology (IN2UB); University of Barcelona; Avda. Joan XXIII 27-31 08028 Barcelona Spain
| | - Guillem Vázquez
- Department of Inorganic and Organic Chemistry; University of Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Ernesto Nicolás
- Department of Inorganic and Organic Chemistry; University of Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
| | - Raimon Sabaté
- Department of Physical Chemistry; Faculty of Pharmacy and; Institute of Nanoscience and Nanotechnology (IN2UB); University of Barcelona; Avda. Joan XXIII 27-31 08028 Barcelona Spain
| | - Patrick Gamez
- Department of Inorganic and Organic Chemistry; University of Barcelona; Martí i Franquès 1-11 08028 Barcelona Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA); Passeig Lluís Companys 23 08010 Barcelona Spain
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22
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Scheja A, Baabe D, Menzel D, Pietzonka C, Schweyen P, Bröring M. Spin Crossover and Valence Tautomerism in Neutral Homoleptic Iron Complexes of Bis(pyridylimino)isoindolines. Chemistry 2015; 21:14196-204. [PMID: 26248693 DOI: 10.1002/chem.201501551] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Anne Scheja
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106 Braunschweig (Germany) http://www.tu‐braunschweig.de/iaac/personal/broering
| | - Dirk Baabe
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106 Braunschweig (Germany) http://www.tu‐braunschweig.de/iaac/personal/broering
| | - Dirk Menzel
- Institut für Physik der Kondensierten Materie, TU Braunschweig, Mendelssohnstraße 2‐3, 38106 Braunschweig (Germany)
| | - Clemens Pietzonka
- Fachbereich Chemie, Philipps‐Universität Marburg, Hans‐Meerweinstraße, 35032 Marburg (Germany)
| | - Peter Schweyen
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106 Braunschweig (Germany) http://www.tu‐braunschweig.de/iaac/personal/broering
| | - Martin Bröring
- Institut für Anorganische und Analytische Chemie, TU Braunschweig, Hagenring 30, 38106 Braunschweig (Germany) http://www.tu‐braunschweig.de/iaac/personal/broering
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23
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Lakk-Bogáth D, Harasztia M, Csonka R, Speier G, Kaizer J. H2O2-oxidation of α-aminoisobutyric and cyclic amino acids catalyzed by iron(III) isoindoline complexes. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
During the past decade isoindoline-based ligands became the subject of growing interest due to their modular set-up.
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Affiliation(s)
- Róbert Csonka
- Department of Chemistry
- University of Pannonia
- 8201 Veszprém
- Hungary
| | - Gábor Speier
- Department of Chemistry
- University of Pannonia
- 8201 Veszprém
- Hungary
| | - József Kaizer
- Department of Chemistry
- University of Pannonia
- 8201 Veszprém
- Hungary
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25
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Szávuly M, Csonka R, Speier G, Barabás R, Giorgi M, Kaizer J. Oxidation of 2-aminophenol by iron(III) isoindoline complexes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Chang TM, Sinharay S, Astashkin AV, Tomat E. Prodigiosin analogue designed for metal coordination: stable zinc and copper pyrrolyldipyrrins. Inorg Chem 2014; 53:7518-26. [PMID: 25008284 PMCID: PMC4106694 DOI: 10.1021/ic5008439] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The pyrrolyldipyrrin motif is found in several naturally occurring prodigiosin pigments. The potential roles of the interactions of prodigiosins with transition metals and the properties of metal-bound pyrrolyldipyrrins, however, have been difficult to assess because of the very limited number of well-characterized stable complexes. Here, we show that the introduction of a meso-aryl substituent and an ethyl ester group during the sequential assembly of the three heterocycles affords a pyrrolyldipyrrin of enhanced coordinating abilities when compared to that of natural prodigiosins. UV-visible absorption studies indicate that this ligand promptly binds Zn(II) ions with 2:1 ligand-to-metal stoichiometry and Cu(II) ions with 1:1 stoichiometry. Notably, no addition of base is required for the formation of the resulting stable complexes. The crystal structures reveal that whereas the tetrahedral zinc center engages two nitrogen donors on each ligand, the pseudosquare planar copper complex features coordination of all three pyrrolic nitrogen atoms and employs the ester group as a neutral ligand. This first example of coordination of a redox-active transition metal within a fully conjugated pyrrolyldipyrrin framework was investigated spectroscopically by electron paramagnetic resonance to show that the 1:1 metal-to-ligand ratio found in the crystal structure is also maintained in solution.
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Affiliation(s)
- Tsuhen M Chang
- Department of Chemistry and Biochemistry, University of Arizona , 1306 East University Boulevard, Tucson, Arizona 85721-0041, United States
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Kotynia A, Czyżnikowska Ż, Bielińska S, Szyrwiel Ł, Kamysz W, Malinka W, Brasuń J. The impact of two –GlyProGly– motifs on formation of di-copper complexes by His4-cyclopeptides. NEW J CHEM 2014. [DOI: 10.1039/c4nj00689e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pap JS, Cranswick MA, Balogh-Hergovich E, Baráth G, Giorgi M, Rohde GT, Kaizer J, Speier G, Que L. An Iron(II)(1,3-bis(2'-pyridylimino)isoindoline) Complex as a Catalyst for Substrate Oxidation with H 2O 2. Evidence for a Transient Peroxodiiron(III) Species. Eur J Inorg Chem 2013; 2013:3858-3866. [PMID: 24587695 PMCID: PMC3935335 DOI: 10.1002/ejic.201300162] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Indexed: 11/06/2022]
Abstract
The complex [Fe(indH)(solvent)3](ClO4)2 (1) has been isolated from the reaction of equimolar amounts of 1,3-bis(2'-pyridylimino)isoindoline (indH) and Fe(ClO4)2 in acetonitrile and characterized by X-ray crystallography and several spectroscopic techniques. It is a suitable catalyst for the oxidation of thioanisoles and benzyl alcohols with H2O2 as the oxidant. Hammett correlations and kinetic isotope effect experiments support the involvement of an electrophilic metal-based oxidant. A metastable green species (2) is observed when 1 is reacted with H2O2 at -40 °C, which has been characterized to have a FeIII(μ-O)(μ-O2)FeIII core on the basis of UV-Vis, electron paramagnetic resonance, resonance Raman, and X-ray absorption spectroscopic data.
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Affiliation(s)
- József S Pap
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Wartha Vince u. 1., Hungary
| | - Matthew A Cranswick
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455, USA
| | - E Balogh-Hergovich
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Wartha Vince u. 1., Hungary
| | - Gábor Baráth
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Wartha Vince u. 1., Hungary
| | - Michel Giorgi
- Aix-Marseille Université, FR1739, Spectropole, Campus St. Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille cedex 20, France
| | - Gregory T Rohde
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455, USA
| | - József Kaizer
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Wartha Vince u. 1., Hungary
| | - Gábor Speier
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Wartha Vince u. 1., Hungary
| | - Lawrence Que
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455, USA
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Váradi T, Pap JS, Giorgi M, Párkányi L, Csay T, Speier G, Kaizer J. Iron(III) complexes with meridional ligands as functional models of intradiol-cleaving catechol dioxygenases. Inorg Chem 2013; 52:1559-69. [PMID: 23320898 DOI: 10.1021/ic302378r] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Six dichloroiron(III) complexes of 1,3-bis(2'-arylimino)isoindoline (BAIH) with various N-donor aryl groups have been characterized by spectroscopy (infrared, UV-vis), electrochemistry (cyclic voltammetry), microanalysis, and in two cases X-ray crystallography. The structurally characterized Fe(III)Cl(2)(L(n)) complexes (n = 3, L(3) = 1,3-bis(2'-thiazolylimino)isoindoline and n = 5, L(5) = 1,3-bis(4-methyl-2'-piridylimino)isoindoline) are five-coordinate, trigonal bipyramidal with the isoindoline ligands occupying the two axial and one equatorial positions meridionally. These compounds served as precursors for catechol dioxygenase models that were formed in solution upon addition of 3,5-di-tert-butylcatechol (H(2)DBC) and excess triethylamine. These adducts react with dioxygen in N,N-dimethylformamide, and the analysis of the products by chromatography and mass spectrometry showed high intradiol over extradiol selectivity (the intradiol/extradiol product ratios varied between 46.5 and 6.5). Kinetic measurements were performed by following the change in the intensity of the catecholate to iron ligand-to-metal charge transfer (LMCT) band, the energy of which is influenced by the isoindolinate-ligand (827-960 nm). In combination with electrochemical investigations the kinetic studies revealed an inverse trend between reaction rates and oxidation potentials associated with the coordinated DBC(2-). On the basis of these results, a substrate activation mechanism is suggested for this system in which the geometry of the peroxide-bridged intermediate may be of key importance in regioselectivity.
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Affiliation(s)
- Tünde Váradi
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Hungary
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Synthesis of a low-spin iron(III) complex from its high-spin iron(II) counterpart: What causes redox potentials that disobey the expected trends? INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2012.10.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Pap JS, Kripli B, Bors I, Bogáth D, Giorgi M, Kaizer J, Speier G. Transition metal complexes bearing flexible N₃ or N₃O donor ligands: reactivity toward superoxide radical anion and hydrogen peroxide. J Inorg Biochem 2012; 117:60-70. [PMID: 23078775 DOI: 10.1016/j.jinorgbio.2012.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 08/22/2012] [Accepted: 08/24/2012] [Indexed: 01/25/2023]
Abstract
Mononuclear complexes of N-methylpropanoate-N,N-bis-(2-pyridylmethyl)amine (MPBMPA) and N-propanoate-N,N-bis-(2-pyridylmethyl)amine (HPBMPA) with first row transition metals from Mn to Cu were synthesized and characterized by spectroscopy (infrared, UV-visible), electrochemistry (cyclic voltammetry), microanalysis and in four cases X-ray crystallography. Structure of the complexes revealed high flexibility of these ligands that can adopt facial (Fe) and meridional (Cu) geometry. Activity in the degradation of reactive oxygen species (superoxide radical anion: superoxide dismutase (SOD)-like activity and hydrogen peroxide: catalase-like activity) was tested throughout the complex series in aqueous solutions. In connection with the catalytic dismutation of H(2)O(2), bleaching tests with morin were also conducted in water. Comparison of the two ligands helped in elucidating the possible role of the carboxylate moiety in the different catalytic reactions. Although no general trends could be revealed between reactivity and constitution of the first coordination sphere, plausible explanations for differences are discussed individually for SOD like, catalase-like and bleaching activity.
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Affiliation(s)
- József S Pap
- Department of Chemistry, University of Pannonia, 8201 Veszprém, Hungary
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Champouret Y, Gulli S, Daran J, Poli R. Preparation of Diamine‐β‐diketiminato Copper(II) Complexes and Their Application in the Reverse Atom‐Transfer Radical Polymerization of Styrene. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yohan Champouret
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France, Fax: +33‐5‐61553003
| | - Stefano Gulli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France, Fax: +33‐5‐61553003
| | - Jean‐Claude Daran
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France, Fax: +33‐5‐61553003
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, route de Narbonne, 31077 Toulouse, France, Fax: +33‐5‐61553003
- Institut Universitaire de France, 103, bd Saint‐Michel, 75005 Paris, France
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Pap JS, Bányai V, Szilvási DS, Kaizer J, Speier G, Giorgi M. Influence of meridional N3-ligands on supramolecular assembling and redox behavior of carboxylatocopper(II) complexes. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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