1
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Costa LMO, Reis IS, Fernandes C, Marques MM, Resende JALC, Krenske EH, Schenk G, Gahan LR, Horn A. Synthesis, characterization and computational investigation of the phosphatase activity of a dinuclear Zinc(II) complex containing a new heptadentate asymmetric ligand. J Inorg Biochem 2023; 239:112064. [PMID: 36410306 DOI: 10.1016/j.jinorgbio.2022.112064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/24/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022]
Abstract
We report the synthesis of a new asymmetric heptadentate ligand based on the 1,3-diaminopropan-2-ol backbone. The ligand 3-[[3-(bis-pyridin-2-ylmethyl-amino)-2-hydroxy-propyl]-(2-carbamoyl-ethyl)-amino]-propionamide (HL1) contains two amide and two pyridine groups attached to the 1,3-diaminopropan-2-ol core. Reaction between HL1 and Zn(ClO4)2.6H2O resulted in the formation of the dinuclear [Zn2(L1)(μ-OAc)](ClO4)2 complex, characterized by single crystal X-ray diffraction, 1H, 13C and 15N NMR, ESI-(+)-MS, CHN elemental analysis as well as infrared spectroscopy. The phosphatase activity of the complex was studied in the pH range 6-11 employing pyridinium bis(2,4-dinitrophenyl)phosphate (py(BDNPP)) as substrate. The complex exhibited activity dependent on the pH, presenting an asymmetric bell shape profile with the highest activity at pH 9; at high pH ligand exchange is rate-limiting. The hydrolysis of BDNPP- at pH 9 displayed behavior characteristic of Michaelis-Menten kinetics, with kcat = 5.06 × 10-3 min-1 and Km = 5.7 ± 1.0 mM. DFT calculations map out plausible reaction pathways and identify a terminal, Zn(II)-bound hydroxide as likely nucleophile.
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Affiliation(s)
- Luel M O Costa
- Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ 28013-602, Brazil
| | - Iago S Reis
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Christiane Fernandes
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Marcelo M Marques
- Colégio Universitário Geraldo Reis, Universidade Federal Fluminense, Niterói, RJ 24210-200, Brazil
| | - Jackson A L C Resende
- Instituto de Ciências Exatas e da Terra, Universidade Federal de Mato Grosso, Pontal do Araguaia, MT, Brazil
| | - Elizabeth H Krenske
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Gerhard Schenk
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia; Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland, Australia, 4072; Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Lawrence R Gahan
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Adolfo Horn
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil.
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2
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Voitekhovich SV, Lyakhov AS, Degtyarik MM, Grigoriev YV, Shiman DI, Klose J, Stepurko EN, Blokhin AV, Ivashkevich LS, Kersting B, Ivashkevich OA. Dicopper(II) complexes with N3,N4-Bridging 1-alkyltetrazoles: Synthesis, crystal structure, magnetic and thermodynamic properties. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Nadarkhani S, Golchoubian H, Shirvan A. Synthesis, Crystal structure, and Chromotropism properties of Dihalo N-2-ethanolpicolylamine Copper(II). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Hydrolytic reactivity of novel copper(II) complexes with reduced N-salicylate threonine Schiff bases: distinguishable effects of various micelles. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Kinoshita-Kikuta E, Ichimaru Y, Yamano Y, Kato K, Kurosaki H, Kinoshita E, Koike T. Characterization of the Binding of Adenosine-5′-monophosphate to a µ-Type Alkoxide-Linked Dinuclear Zinc(II) Complex in Crystal and Solution State. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Emiko Kinoshita-Kikuta
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yoshimi Ichimaru
- Department of Clinical Pharmacy, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, Kanagawa 224-0806, Japan
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya, Aichi 463-8521, Japan
| | - Yoshi Yamano
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Koichi Kato
- Department of Clinical Pharmacy, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, Kanagawa 224-0806, Japan
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya, Aichi 463-8521, Japan
| | - Hiromasa Kurosaki
- College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya, Aichi 463-8521, Japan
| | - Eiji Kinoshita
- Faculty of Human Sciences, Hiroshima Bunkyo University, 1-2-1 Kabehigashi, Asakita-ku, Hiroshima 731-0295, Japan
| | - Tohru Koike
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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6
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Shu J, Yue J, Qiu X, Liu X, Ren W, Li Q, Li Y, Xu B, Zhang K, Jiang W. Binuclear metal complexes with a novel hexadentate imidazole derivative for the cleavage of phosphate diesters and biomolecules: distinguishable mechanisms. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00108f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidative cleavage of phosphate diesters (HPNP, BNPP) is highly faster than the hydrolytic one by binuclear metal complexes with novel imidazole derivative, producing a non-lactone phosphate monoester due to the direct attack of free radicals.
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Affiliation(s)
- Jun Shu
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Jian Yue
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Xin Qiu
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Xiaoqiang Liu
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Wang Ren
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Qianli Li
- College of Chemistry and Chemical Engineering
- Liaocheng University
- Shandong Liaocheng 252059
- P. R. China
| | - Yulong Li
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Bin Xu
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Kaiming Zhang
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
| | - Weidong Jiang
- School of Chemistry and Environmental Engineering
- Sichuan University of Science & Engineering
- Sichuan Zigong 643000
- P. R. China
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7
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8
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Guanidine- and purine-functionalized ligands of FeIIIZnII complexes: effects on the hydrolysis of DNA. J Biol Inorg Chem 2019; 24:675-691. [DOI: 10.1007/s00775-019-01680-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/21/2019] [Indexed: 01/01/2023]
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9
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Affiliation(s)
- Ladislav Habala
- Faculty of Pharmacy, Department of Chemical Theory of Drugs, Comenius University Bratislava, Slovakia
| | - Ferdinand Devínsky
- Faculty of Pharmacy, Department of Chemical Theory of Drugs, Comenius University Bratislava, Slovakia
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10
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Casanova I, Durán ML, Viqueira J, Sousa-Pedrares A, Zani F, Real JA, García-Vázquez JA. Metal complexes of a novel heterocyclic benzimidazole ligand formed by rearrangement-cyclization of the corresponding Schiff base. Electrosynthesis, structural characterization and antimicrobial activity. Dalton Trans 2018; 47:4325-4340. [DOI: 10.1039/c8dt00532j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot electrochemical synthesis of metal complexes containing a novel heterocyclic benzimidazole ligand is reported and characterized.
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Affiliation(s)
- I. Casanova
- Departamento de Química Inorgánica
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - M. L. Durán
- Departamento de Química Inorgánica
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - J. Viqueira
- Departamento de Química Inorgánica
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - A. Sousa-Pedrares
- Departamento de Química Inorgánica
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - F. Zani
- Departamento di Farmacia
- Parco Area delle Scienze
- 43124 Parma
- Italy
| | - J. A. Real
- Institut de Ciencia Molecular Departament de Química Inorgánica
- Universitat de Valencia
- Valencia
- Spain
| | - J. A. García-Vázquez
- Departamento de Química Inorgánica
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
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11
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Barman SK, Mondal T, Koley D, Lloret F, Mukherjee R. A phenoxo-bridged dicopper(ii) complex as a model for phosphatase activity: mechanistic insights from a combined experimental and computational study. Dalton Trans 2017; 46:4038-4054. [PMID: 28271106 DOI: 10.1039/c6dt03514k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A μ-phenoxo-bis(μ2-1,3-acetato)-bridged dicopper(ii) complex [Cu(L1)(μ-O2CMe)2][NO3] (1) has been synthesized from the perspective of modeling phosphodiesterase activity. Structural characterization was done initially with 1·3Et2O (vapour diffusion of Et2O into MeOH solution of 1; poor crystal quality) and finally with its perchlorate salt [Cu(L1)(μ-O2CMe)2][ClO4]·1.375MeCN·0.25H2O, crystallized from vapour diffusion of n-pentane into a MeCN-MeOH mixture (comparatively better crystal quality). An asymmetric unit of such a crystal contains two independent molecules of compositions [Cu(L1)(μ-O2CMe)2][ClO4] and [Cu(L1)(μ-O2CMe)2(MeCN)][ClO4] (coordinated MeCN with 0.75 occupancy), and two molecules of MeCN and H2O (each H2O molecule with 0.25 occupancy) as the solvent of crystallization. These two cations, each having five-coordinate (μ-phenoxo)bis(μ-acetato)-bridged CuII ions, differ by only the coordination environment of only one CuII ion, which has a weakly coordinated acetonitrile molecule in its sixth position. Temperature-dependent magnetic studies on 1 reveal that the copper(ii) centres are antiferromagnetically coupled with the exchange-coupling constant J = -124(1) cm-1. Theoretically calculated J = -126.51 cm-1, employing a broken-symmetry DFT approach, is in excellent agreement with the experimental value. The dicopper(ii) complex has been found to be catalytically efficient in the hydrolysis of 2-hydroxypropyl-p-nitrophenylphosphate (HPNP). Detailed kinetic experiments and solution studies (potentiometry, species distribution and ESI-MS) were performed to elucidate the reaction mechanism. DFT calculations were performed to discriminate between different possible mechanistic pathways. The free-energy barrier for HPNP hydrolysis catalyzed by 1 is comparable to that obtained from the experimentally-determined value. The involvement of non-covalent (hydrogen-bonding) interaction has also been probed by DFT calculations. The activity of 1 is found to be the highest, compared to the structurally-characterized Mn, Co, Ni and Zn complexes of L1(-) reported earlier, under identical experimental conditions, in which each metal centre is six-coordinate.
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Affiliation(s)
- Suman K Barman
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India. and Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, India
| | - Totan Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, India
| | - Debasis Koley
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, India
| | - Francesc Lloret
- Departament de Química Inorgànica/Fundació General de la Universitat de València (FGUV)/Instituto de Ciencia, Molecular (ICMOL), Universitat de València, Polígono de la Coma, s/n, 46980-Paterna, València, Spain
| | - Rabindranath Mukherjee
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India. and Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741 246, India
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12
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Smolko A, Šupljika F, Martinčić J, Jajčanin-Jozić N, Grabar-Branilović M, Tomić S, Ludwig-Müller J, Piantanida I, Salopek-Sondi B. The role of conserved Cys residues in Brassica rapa auxin amidohydrolase: Cys139 is crucial for the enzyme activity and Cys320 regulates enzyme stability. Phys Chem Chem Phys 2017; 18:8890-900. [PMID: 26959939 DOI: 10.1039/c5cp06301a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Brassica rapa auxin amidohydrolase (BrILL2) participates in the homeostasis of the plant hormones auxins by hydrolyzing the amino acid conjugates of auxins, thereby releasing the free active form of hormones. Herein, the potential role of the two conserved Cys residues of BrILL2 (at sequence positions 139 and 320) has been investigated by using interdisciplinary approaches and methods of molecular biology, biochemistry, biophysics and molecular modelling. The obtained results show that both Cys residues participate in the regulation of enzyme activity. Cys320 located in the satellite domain of the enzyme is mainly responsible for protein stability and regulation of enzyme activity through polymer formation, as has been revealed by enzyme kinetics and differential scanning calorimetry analysis of the BrILL2 wild type and mutants C320S and C139S. Cys139 positioned in the active site of the catalytic domain is involved in the coordination of one Mn(2+) ion of the bimetal center and is crucial for the enzymatic activity. Although the point mutation Cys139 to Ser causes the loss of enzyme activity, it does not affect the metal binding to the BrILL2 enzyme, as has been shown by isothermal titration calorimetry, circular dichroism spectropolarimetry and differential scanning calorimetry data. MD simulations (200 ns) revealed a different active site architecture of the BrILL2C139S mutant in comparison to the wild type enzyme. Additional possible reasons for the inactivity of the BrILL2C139S mutant have been discussed based on MD simulations and MM-PBSA free energy calculations of BrILL2 enzyme complexes (wt and C139S mutant) with IPA-Ala as a substrate.
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Affiliation(s)
- Ana Smolko
- Division of Molecular Biology, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
| | - Filip Šupljika
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
| | - Jelena Martinčić
- Division of Molecular Biology, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
| | - Nina Jajčanin-Jozić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
| | | | - Sanja Tomić
- Division of Physical Chemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | | | - Ivo Piantanida
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, 10000 Zagreb, Croatia.
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13
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Koepf M, Bergkamp JJ, Teillout AL, Llansola-Portoles MJ, Kodis G, Moore AL, Gust D, Moore TA. Design of porphyrin-based ligands for the assembly of [d-block metal : calcium] bimetallic centers. Dalton Trans 2017; 46:4199-4208. [DOI: 10.1039/c6dt04647a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A secondary binding-site for alkaline-earth cations is introduced on a porphyrin platform to obtain competent bitopicN,O-ligands.
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Affiliation(s)
- Matthieu Koepf
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | | | | | | | - Gerdenis Kodis
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Ana L. Moore
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Devens Gust
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Thomas A. Moore
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
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14
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Kirillova MV, Santos CIM, André V, Fernandes TA, Dias SSP, Kirillov AM. Self-assembly generation, structural features, and oxidation catalytic properties of new aqua-soluble copper(ii)-aminoalcohol derivatives. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00553e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Multidentate aminoalcohols were applied as unexplored building blocks to generate two novel Cu(ii) coordination compounds that act as efficient catalysts for the mild and acid-promoter-free oxidation of C5–C8 cycloalkanes.
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Affiliation(s)
- Marina V. Kirillova
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Carla I. M. Santos
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Vânia André
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Tiago A. Fernandes
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Sara S. P. Dias
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
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15
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Schmidt M, Görls H, Plass W. Facile high-yield synthesis of unsymmetric end-off compartmental double Schiff-base ligands: easy access to mononuclear precursor and unsymmetric dinuclear complexes. RSC Adv 2016. [DOI: 10.1039/c6ra16870a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel approach to unsymmetric end-off compartmental ligands with a selective high-yield synthesis and access to unsymmetric dinuclear complexes.
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Affiliation(s)
- Markus Schmidt
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität Jena
- 07743 Jena
- Germany
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität Jena
- 07743 Jena
- Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität Jena
- 07743 Jena
- Germany
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16
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Dalle KE, Meyer F. Modelling Binuclear Metallobiosites: Insights from Pyrazole-Supported Biomimetic and Bioinspired Complexes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500185] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Camargo TP, Maia FF, Chaves C, de Souza B, Bortoluzzi AJ, Castilho N, Bortolotto T, Terenzi H, Castellano EE, Haase W, Tomkowicz Z, Peralta RA, Neves A. Synthesis, characterization, hydrolase and catecholase activity of a dinuclear iron(III) complex: Catalytic promiscuity. J Inorg Biochem 2015; 146:77-88. [DOI: 10.1016/j.jinorgbio.2015.02.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/24/2015] [Accepted: 02/24/2015] [Indexed: 12/20/2022]
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18
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Sanyal R, Zhang X, Kundu P, Chattopadhyay T, Zhao C, Mautner FA, Das D. Mechanistic Implications in the Phosphatase Activity of Mannich-Based Dinuclear Zinc Complexes with Theoretical Modeling. Inorg Chem 2015; 54:2315-24. [DOI: 10.1021/ic502937a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ria Sanyal
- Department
of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
| | - Xuepeng Zhang
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Priyanka Kundu
- Department
of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
| | - Tanmay Chattopadhyay
- Department
of Chemistry, Panchakot Mahavidyalaya, Sarbari, Purulia 723121, India
| | - Cunyuan Zhao
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Franz A. Mautner
- Institut
fuer Physikalische und Theoretische Chemie, Technische Universitaet Graz, A-8010 Graz, Austria
| | - Debasis Das
- Department
of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India
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19
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Khadir N, Boghaei DM, Assoud A, Nascimento OR, Nicotina A, Ghivelder L, Calvo R. The structure, magnetism and EPR spectra of a (μ-thiophenolato)(μ-pyrazolato-N,N') double bridged dicopper(II) complex. Dalton Trans 2015; 44:2431-8. [PMID: 25553757 DOI: 10.1039/c4dt03322a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new binuclear copper(ii) complex, namely [Cu2L(pz)(DMSO)], where L = 2,6-bis[(2-phenoxy)iminomethyl]-4-methylthiophenolate(3-) and pz = pyrazolate ligand, has been synthesized by a one-pot synthesis involving copper(ii) acetate monohydrate, the S-protected ligand precursor 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2'-hydroxy anil, (), and pyrazole, in which a metal-promoted S-deprotection reaction occurs during the formation of the complex. This was characterized by routine physicochemical studies, single crystal X-ray diffraction and electron paramagnetic resonance (EPR) techniques. The structure analysis reveals that there are copper centres in two different environments, a slightly distorted square planar and a distorted square-pyramidal, arranged in binuclear units. The EPR study of these binuclear units performed at 9.4 GHz in the temperature range between 4 and 293 K shows an antiferromagnetic interaction between Cu(II) ions, and allows evaluating g factors gx = 2.068(1), gy = 2.091(1) and gz = 2.165(1), with <g> = 2.108(1), an exchange coupling parameter J0 = -26(1) cm(-1) (defined as ), and a zero field splitting of the ground triplet state described by D = 86(2) × 10(-4) cm(-1) and E = -48(3) × 10(-4) cm(-1). These results are discussed and compared with the existing literature.
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Affiliation(s)
- Narjes Khadir
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran.
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20
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Synthesis of homo- and heterobimetallic Ni II –M II (M = Fe, Co, Ni, Zn) complexes based on an unsymmetric ligand framework: Structures, spectroscopic features, and redox properties. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.018] [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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21
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Bosch S, Comba P, Gahan LR, Schenk G. Dinuclear Zinc(II) Complexes with Hydrogen Bond Donors as Structural and Functional Phosphatase Models. Inorg Chem 2014; 53:9036-51. [DOI: 10.1021/ic5009945] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Simone Bosch
- Anorganisch-Chemisches Institut, Universität Heidelberg, INF 270, D-69120, Heidelberg, Germany
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Peter Comba
- Anorganisch-Chemisches Institut, Universität Heidelberg, INF 270, D-69120, Heidelberg, Germany
| | - Lawrence R. Gahan
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
| | - Gerhard Schenk
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia
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22
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Thallaj NK, Orain PY, Thibon A, Sandroni M, Welter R, Mandon D. Steric Congestion at, and Proximity to, a Ferrous Center Leads to Hydration of α-Nitrile Substituents Forming Coordinated Carboxamides. Inorg Chem 2014; 53:7824-36. [DOI: 10.1021/ic500096h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nasser K. Thallaj
- Laboratoire de Chimie Biomimétique des Métaux de Transition, Institut de Chimie de Strasbourg−UMR 7177, CNRS−Université de Strasbourg, Bâtiment Le Bel, 4 rue Blaise Pascal, CS
90032, F-67081 Strasbourg
Cedex, France
- Faculty of
Applied Sciences, Department of Chemistry, Kalamoon University at Deratiah, P.O.
Box 222, Deratiah, Syria
| | - Pierre-Yves Orain
- Laboratoire de Chimie,
Electrochimie Moléculaires et Chimie Analytique, UMR 6521, CNRS−Université de Bretagne Occidentale, 6 Avenue
Victor Le Gorgeu, CS 93837, F-29238 Brest Cedex 3, France
| | - Aurore Thibon
- Laboratoire de Chimie Biomimétique des Métaux de Transition, Institut de Chimie de Strasbourg−UMR 7177, CNRS−Université de Strasbourg, Bâtiment Le Bel, 4 rue Blaise Pascal, CS
90032, F-67081 Strasbourg
Cedex, France
- Laboratoire CLAC, Institut de Chimie de Strasbourg−UMR 7177, CNRS−Université de Strasbourg, 1 rue
Blaise Pascal, F-67000 Strasbourg Cedex, France
| | - Martina Sandroni
- Laboratoire de Chimie,
Electrochimie Moléculaires et Chimie Analytique, UMR 6521, CNRS−Université de Bretagne Occidentale, 6 Avenue
Victor Le Gorgeu, CS 93837, F-29238 Brest Cedex 3, France
| | - Richard Welter
- Institut
de Biologie Moléculaire des Plantes, UPR CNRS 2357, Université de Strasbourg, F-67084 Strasbourg, France
| | - Dominique Mandon
- Laboratoire de Chimie Biomimétique des Métaux de Transition, Institut de Chimie de Strasbourg−UMR 7177, CNRS−Université de Strasbourg, Bâtiment Le Bel, 4 rue Blaise Pascal, CS
90032, F-67081 Strasbourg
Cedex, France
- Laboratoire de Chimie,
Electrochimie Moléculaires et Chimie Analytique, UMR 6521, CNRS−Université de Bretagne Occidentale, 6 Avenue
Victor Le Gorgeu, CS 93837, F-29238 Brest Cedex 3, France
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23
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Daumann LJ, Schenk G, Gahan LR. Metallo-β-lactamases and Their Biomimetic Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Das B, Daver H, Pyrkosz-Bulska M, Persch E, Barman SK, Mukherjee R, Gumienna-Kontecka E, Jarenmark M, Himo F, Nordlander E. A dinuclear zinc(II) complex of a new unsymmetric ligand with an N(5)O(2) donor set: a structural and functional model for the active site of zinc phosphoesterases. J Inorg Biochem 2014; 132:6-17. [PMID: 24001510 DOI: 10.1016/j.jinorgbio.2013.08.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 08/01/2013] [Accepted: 08/01/2013] [Indexed: 02/03/2023]
Abstract
The dinuclear complex [Zn(2)(DPCPMP)(pivalate)](ClO4), where DPCPMP is the new unsymmetrical ligand [2-(N-(3-((bis((pyridin-2-yl)methyl)amino)methyl)-2-hydroxy-5-methylbenzyl)-N-((pyridin-2-yl)methyl)amino)acetic acid], has been synthesized and characterized. The complex is a functional model for zinc phosphoesterases with dinuclear active sites. The hydrolytic efficacy of the complex has been investigated using bis-(2,4-dinitrophenyl)phosphate (BDNPP), a DNA analog, as substrate. Speciation studies using potentiometric titrations have been performed for both the ligand and the corresponding dizinc complex to elucidate the formation of the active hydrolysis catalyst; they reveals that the dinuclear zinc(II) complexes, [Zn(2)(DPCPMP)](2+) and [Zn(2)(DPCPMP)(OH)](+) predominate the solution above pH4. The relatively high pK(a) of 8.38 for water deprotonation suggests that a terminal hydroxide complex is formed. Kinetic investigations of BDNPP hydrolysis over the pH range 5.5-11.0 and with varying metal to ligand ratio (metal salt:ligand=0.5:1 to 3:1) have been performed. Variable temperature studies gave the activation parameters ΔH(‡)=95.6kJmol(-1), ΔS(‡)=-44.8Jmol(-1)K(-1), and ΔG(‡)=108.0 kJmol(-1). The cumulative results indicate the hydroxido-bridged dinuclear Zn(II) complex [Zn(2)(DPCPMP)(μ-OH)](+) as the effective catalyst. The mechanism of hydrolysis has been probed by computational modeling using density functional theory (DFT). Calculations show that the reaction goes through one concerted step (S(N)2 type) in which the bridging hydroxide in the transition state becomes terminal and performs a nucleophilic attack on the BDNPP phosphorus; the leaving group dissociates simultaneously in an overall inner sphere type activation. The calculated free energy barrier is in good agreement with the experimentally determined activation parameters.
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Affiliation(s)
- Biswanath Das
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Henrik Daver
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Monika Pyrkosz-Bulska
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie Street 14, 50-383 Wroclaw, Poland
| | - Elke Persch
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Suman K Barman
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | | | | | - Martin Jarenmark
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ebbe Nordlander
- Inorganic Chemistry Research Group, Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, SE-22100 Lund, Sweden.
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25
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Daumann LJ, Schenk G, Ollis DL, Gahan LR. Spectroscopic and mechanistic studies of dinuclear metallohydrolases and their biomimetic complexes. Dalton Trans 2013; 43:910-28. [PMID: 24135968 DOI: 10.1039/c3dt52287c] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enhanced understanding of the metal ion binding and active site structural features of phosphoesterases such as the glycerophosphodiesterase from Enterobacter aerogenes (GpdQ), and the organophosphate degrading agent from Agrobacterium radiobacter (OpdA) have important consequences for potential applications. Coupled with investigations of the metalloenzymes, programs of study to synthesise and characterise model complexes based on these metalloenzymes can add to our understanding of structure and function of the enzymes themselves. This review summarises some of our work and illustrates the significance and contributions of model studies to knowledge in the area.
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Affiliation(s)
- Lena J Daumann
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia.
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26
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Daumann LJ, Marty L, Schenk G, Gahan LR. Asymmetric zinc(ii) complexes as functional and structural models for phosphoesterases. Dalton Trans 2013; 42:9574-84. [DOI: 10.1039/c3dt50514f] [Citation(s) in RCA: 19] [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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27
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Joy RA, Arman H, Xiang S, Musie GT. Synthesis, crystal structure, magnetic and electrochemical studies of two copper complexes with carboxylate rich dinucleating ligand. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.08.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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28
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Ledesma GN, Signorella SR. Chemical design and synthesis of unsymmetrical diamino proligands employing a flexible route. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Zeng F, Ni J, Ding C, Xie Y. A binuclear Cu(II) complex of a Schiff-base type polyhydroxyl ligand with asymmetrical phenoxo and methoxo bridges: crystal structure and magnetic properties. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.690867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Fanhua Zeng
- a Shanghai Key Laboratory of Functional Materials Chemistry , East China University of Science and Technology , Shanghai 200237 , P.R. China
- b Department of Chemistry and Life Science , Xiangnan University , Chenzhou 423000 , P.R. China
| | - Jia Ni
- c Department of Chemistry , Shantou University , Shantou, 515063 , P.R. China
| | - Caixia Ding
- a Shanghai Key Laboratory of Functional Materials Chemistry , East China University of Science and Technology , Shanghai 200237 , P.R. China
| | - Yongshu Xie
- a Shanghai Key Laboratory of Functional Materials Chemistry , East China University of Science and Technology , Shanghai 200237 , P.R. China
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30
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Arora H, Barman SK, Lloret F, Mukherjee R. Isostructural Dinuclear Phenoxo-/Acetato-Bridged Manganese(II), Cobalt(II), and Zinc(II) Complexes with Labile Sites: Kinetics of Transesterification of 2-Hydroxypropyl-p-nitrophenylphosphate. Inorg Chem 2012; 51:5539-53. [DOI: 10.1021/ic201971t] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Himanshu Arora
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Suman K. Barman
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Francesc Lloret
- Departament de Quı́mica Inorgànica/Instituto de
Ciencia Molecular (ICMOL), Universitat de València, Polígono de la Coma, s/n, 46980-Paterna
(València), Spain
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31
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Ng GKY, Ziller JW, Borovik AS. Structural diversity in metal complexes with a dinucleating ligand containing carboxyamidopyridyl groups. Inorg Chem 2011; 50:7922-4. [PMID: 21793511 DOI: 10.1021/ic200881t] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The synthesis of a (carboxyamido)pyridinepyrazolate (H(5)bppap) dinucleating ligand is described. Bimetallic iron and cobalt complexes of H(5)bppap ([M(II)(2)H(2)bppap](+)) showed structural differences in both their primary and secondary coordination spheres. The binding of small molecules into the preorganized ligand cavity is verified by the hydration of [Fe(II)(2)H(2)bppap](+) and [Co(II)(2)H(2)bppap](+), leading to the formation of complexes [{Co(II)(OH)}Co(II)H(3)bppap](+) and [{Fe(II)(OH)}Fe(II)H(3)bppap](+), in which one of the metal centers has a terminal hydroxo ligand.
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Affiliation(s)
- Gary K-Y Ng
- Department of Chemistry, University of California-Irvine, 1102 Natural Science II, Irvine, California 92697, USA
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32
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Wimberg J, Scheele UJ, Dechert S, Meyer F. New Pyridazine-Bridged NHC/Pyrazole Ligands and Their Sequential Silver(I) Coordination. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100264] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Rolff M, Schottenheim J, Tuczek F. Monooxygenation of external phenolic substrates in small-molecule dicopper complexes: implications on the reaction mechanism of tyrosinase. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.503273] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Malte Rolff
- a Institut für Anorganische Chemie, Christian Albrechts Universität Kiel , Max-Eyth-Straße 2, D-24118 Kiel, Germany
| | - Julia Schottenheim
- a Institut für Anorganische Chemie, Christian Albrechts Universität Kiel , Max-Eyth-Straße 2, D-24118 Kiel, Germany
| | - Felix Tuczek
- a Institut für Anorganische Chemie, Christian Albrechts Universität Kiel , Max-Eyth-Straße 2, D-24118 Kiel, Germany
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34
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Sachse A, John M, Meyer F. A unique Pd4 platform with CH3 and mu-CH2 groups and its C-C coupling reaction with simple olefins. Angew Chem Int Ed Engl 2010; 49:1986-9. [PMID: 20155765 DOI: 10.1002/anie.200904745] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Anna Sachse
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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35
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Camargo MA, Neves A, Szpoganicz B, Bortoluzzi AJ, Fischer FL, Terenzi H, Castellano EE. Synthesis, Structure, and Phosphatase-Like Activity of a New Trinuclear Gd Complex with the Unsymmetrical Ligand H3L As a Model for Nucleases. Inorg Chem 2010; 49:3057-63. [DOI: 10.1021/ic100276z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Maryene A. Camargo
- Laboratório de Bioinorgânica e Crystalografia (LABINC), Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Ademir Neves
- Laboratório de Bioinorgânica e Crystalografia (LABINC), Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Bruno Szpoganicz
- Laboratório de Bioinorgânica e Crystalografia (LABINC), Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Adailton J. Bortoluzzi
- Laboratório de Bioinorgânica e Crystalografia (LABINC), Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Franciele L. Fischer
- Laboratório de Expressão Gênica, Departamento de Bioquímica, CCB, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Hernán Terenzi
- Laboratório de Expressão Gênica, Departamento de Bioquímica, CCB, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Eduardo E. Castellano
- Instituto de Física, Universidade de São Paulo,13560-970 São Carlos, São Paulo, Brazil
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36
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Piovezan C, Jovito R, Bortoluzzi AJ, Terenzi H, Fischer FL, Severino PC, Pich CT, Azzolini GG, Peralta RA, Rossi LM, Neves A. Heterodinuclear FeIIIZnII-Bioinspired Complex Supported on 3-Aminopropyl Silica. Efficient Hydrolysis of Phosphate Diester Bonds. Inorg Chem 2010; 49:2580-2. [DOI: 10.1021/ic902489j] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clovis Piovezan
- LABINC Laboratório de Bioinorgânica e Cristalografia Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Rafael Jovito
- LABINC Laboratório de Bioinorgânica e Cristalografia Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Adailton J. Bortoluzzi
- LABINC Laboratório de Bioinorgânica e Cristalografia Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Hernán Terenzi
- Laboratório de Expressão Gênica, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Franciele L. Fischer
- Laboratório de Expressão Gênica, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Patricia C. Severino
- Laboratório de Expressão Gênica, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Claus T. Pich
- Laboratório de Expressão Gênica, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Gisele G. Azzolini
- Laboratório de Expressão Gênica, Departamento de Bioquímica, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Rosely A. Peralta
- LABINC Laboratório de Bioinorgânica e Cristalografia Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
| | - Liane M. Rossi
- Instituto de Química, Universidade de São Paulo, 05508-000 São Paulo SP, Brazil
| | - Ademir Neves
- LABINC Laboratório de Bioinorgânica e Cristalografia Departamento de Química, Universidade Federal de Santa Catarina, Campus Trindade, BR-88040-900 Florianópolis SC, Brazil
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37
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Sachse A, John M, Meyer F. A Unique Pd4 Platform with CH3 and μ-CH2 Groups and Its CC Coupling Reaction with Simple Olefins. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200904745] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Jarenmark M, Csapó E, Singh J, Wöckel S, Farkas E, Meyer F, Haukka M, Nordlander E. Unsymmetrical dizinc complexes as models for the active sites of phosphohydrolases. Dalton Trans 2010; 39:8183-94. [DOI: 10.1039/b925563j] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Mandal S, Balamurugan V, Lloret F, Mukherjee R. Syntheses, X-ray Structures, and Physicochemical Properties of Phenoxo-Bridged Dinuclear Nickel(II) Complexes: Kinetics of Transesterification of 2-Hydroxypropyl-p-nitrophenylphosphate. Inorg Chem 2009; 48:7544-56. [DOI: 10.1021/ic8018937] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sukanta Mandal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - V. Balamurugan
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMOL), Universitat de València, Polígono de la Coma, s/n, 46980-Paterna (València), Spain
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40
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Sander O, Näther C, Tuczek F. Chiral Dicopper Complexes with a Doubly Asymmetric Ligand as Models for the Tyrosinase Active Site: Synthesis, Structure, O2-Reactivity and Comparison with Their Symmetric Analogs. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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41
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Gahan LR, Smith SJ, Neves A, Schenk G. Phosphate Ester Hydrolysis: Metal Complexes As Purple Acid Phosphatase and Phosphotriesterase Analogues. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900231] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lawrence R. Gahan
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Sarah J. Smith
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
| | - Ademir Neves
- Laboratorio de Bioinorgânica e Cristalografica, Departamento de Química, Universidade Federal de Santa Catarina, 88040‐900, Florianópolis, SC, Brazil
| | - Gerhard Schenk
- School of Chemistry and Molecular BioSciences, The University of Queensland, 4072 Brisbane, Australia
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42
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Buchholz RR, Etienne ME, Dorgelo A, Mirams RE, Smith SJ, Chow SY, Hanton LR, Jameson GB, Schenk G, Gahan LR. A structural and catalytic model for zinc phosphoesterases. Dalton Trans 2008:6045-54. [DOI: 10.1039/b806391e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Ferreira DEC, De Almeida WB, Neves A, Rocha WR. Theoretical investigation of the reaction mechanism for the phosphate diester hydrolysis using an asymmetric dinuclear metal complex as a biomimetic model of the purple acid phosphatase enzyme. Phys Chem Chem Phys 2008; 10:7039-46. [DOI: 10.1039/b809189g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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44
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