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Guadouri HA, Merzougui M, Hannachi D, Ali MA, Ouari K. Unsymmetrical salen nickel (II) complex embracing phenol bridge: X-ray structure, redox investigation, computational calculations, antimicrobial and catalytic activities. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Synthesis, Spectral Characterization, and In Vitro Cytotoxicity of Some Fe(III) Complexes Bearing Unsymmetrical Salen-Type Ligands Derived from 2-Hydroxynaphthaldehyde and Substituted Salicylaldehydes. J CHEM-NY 2021. [DOI: 10.1155/2021/8028064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Six Fe(III) complexes bearing unsymmetrical salen-type ligands derived from 2-hydroxynaphthaldehyde and substituted salicylaldehydes were synthesized by coordinating the unsymmetrical salen-type ligands with FeCl3.6H2O. The synthetic complexes were characterized by electrospray ionization mass spectra (ESI-MS), effective magnetic moments (μeff), and infrared (IR) and ultraviolet-visible (UV-Vis) spectra. The spectroscopic data are in good agreement with the suggested molecular formulae of the complexes. Their cyclic voltammetric studies in acetonitrile solutions showed that the Fe(III)/Fe(II) reduction processes are electrochemically irreversible. The in vitro cytotoxicity of the obtained complexes was screened on human cancer cell lines KB (a subline of Hela tumor cell line) and HepG2 (a human liver cancer cell line) and a normal human cell line HEK-293 (Human Embryonic Kidney cell line). The results showed that the synthetic Fe(III) complexes are highly cytotoxic and quite selective. The synthetic complexes bearing unsymmetrical salen-type ligands with different substituted groups in the salicyl ring indicate different cytotoxicity.
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Synthesis, Characterization, and In Vitro Cytotoxicity of Unsymmetrical Tetradentate Schiff Base Cu(II) and Fe(III) Complexes. Bioinorg Chem Appl 2021; 2021:6696344. [PMID: 34035799 PMCID: PMC8118743 DOI: 10.1155/2021/6696344] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/13/2021] [Accepted: 04/16/2021] [Indexed: 11/18/2022] Open
Abstract
Unsymmetrical tetradentate Schiff base Fe(III) and Cu(II) complexes were prepared by the coordination of some unsymmetrical tetradentate Schiff base ligands with CuCl2·2H2O or FeCl3·6H2O. The obtained complexes were characterized by ESI-MS, IR, and UV-Vis. The spectroscopic data with typical signals are in agreement with the suggested molecular formulae of the complexes. Their cyclic voltammetric studies in acetonitrile solutions showed that the Cu(II)/Cu(I) and Fe(III)/Fe(II) reduction processes are at (−)1.882–(−) 1.782 V and at (−) 1.317–(−) 1.164 V, respectively. The in vitro cytotoxicity of obtained complexes was screened for KB and Hep-G2 human cancer cell lines. The results showed that almost unsymmetrical tetradentate Schiff base complexes have good cytotoxicity. The synthetic complexes bearing the unsymmetrical tetradentate Schiff base ligands with different substituted groups in the salicyl ring indicate different cytotoxicity. The obtained Fe(III) complexes are more cytotoxic than Cu(II) complexes and relative unsymmetric Schiff base ligands.
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Preuß A, Korb M, Rüffer T, Bankwitz J, Georgi C, Jakob A, Schulz SE, Lang H. Synthesis of β‐Ketoiminato Copper(II) Complexes and Their Use in Copper Deposition. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Andrea Preuß
- Inorganic Chemistry, Institute of Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
- Faculty of Natural Sciences MAIN Research Center Rosenbergstraße 6 09126 Chemnitz Germany
| | - Marcus Korb
- School of Molecular Sciences Faculty of Science The University of Western Australia 6009 Crawley Perth, WA Australia
| | - Tobias Rüffer
- Inorganic Chemistry, Institute of Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Jörn Bankwitz
- Faculty of Science Fraunhofer Institute for Electronic Nano Systems (ENAS) Technologie‐Campus 3 09126 Chemnitz Germany
| | - Colin Georgi
- Faculty of Science Fraunhofer Institute for Electronic Nano Systems (ENAS) Technologie‐Campus 3 09126 Chemnitz Germany
| | - Alexander Jakob
- Inorganic Chemistry, Institute of Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Stefan E. Schulz
- Faculty of Science Fraunhofer Institute for Electronic Nano Systems (ENAS) Technologie‐Campus 3 09126 Chemnitz Germany
- Center for Microtechnologies Faculty of Science Technische Universität Chemnitz 09107 Chemnitz Germany
| | - Heinrich Lang
- Inorganic Chemistry, Institute of Chemistry Faculty of Natural Sciences Technische Universität Chemnitz 09107 Chemnitz Germany
- Faculty of Natural Sciences MAIN Research Center Rosenbergstraße 6 09126 Chemnitz Germany
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Tavassoli M, Montazerozohori M, Masoudiasl A, Akbari Z, Doert T, Vazquez Lopez E, Fatemi S. Synthesis, spectral analysis, crystal structure, Hirshfeld surface analyses, thermal behavior of two new nickel complexes and usage as precursor for preparation of Ni/NiO nanoparticles. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Preuß A, Korb M, Rüffer T, Bankwitz J, Georgi C, Jakob A, Schulz SE, Lang H. A β-ketoiminato palladium(II) complex for palladium deposition. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2019. [DOI: 10.1515/znb-2019-0172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Abstract
The ¦-ketoiminato complex [Pd(OAc)L] (3) can be synthesized by the reaction of bis(benzoylacetone)diethylenetriamine (1, = LH) with [Pd(OAc)2] (2). The structure of 3 in the solid state has been determined by single X-ray diffraction analysis. Complex 3 crystallizes as a dimer (3
2), which is formed by hydrogen bonds between NH and OOAc functionalities of two adjacent ligands. Each of the Pd atoms is complexed by one ON2 donor unit of the polydentate ligand L
− and an acetate group. Pd–Pd interactions and hydrogen bond formation between a NH and the C=O acetate moiety lead to a [4 + 2] coordination at Pd. The non-coordinated part of L exists in its ¦-keto-enamine form. The thermal decomposition behavior of 3
2 was studied by TG (thermogravimetry) and TG-MS showing that 3
2 decomposes between 200 and 500°C independent of the applied atmosphere. Under oxygen PdO is produced, while under argon Pd is formed as confirmed by PXRD measurements. Complex 3
2 was applied as a spin-coating precursor (conc. 0.1 mol L−1, volume 1.5 mL, 3000 rpm, deposition time 6 min, heating rate 50 K min−1, holding time 60 min (Ar) and 120 min (air) at T = 800°C). The as-obtained samples are characterized by granulated particles of Pd/PdO on the substrate surface. EDX (energy-dispersive X-ray spectroscopy) and XPS (X-ray photoelectron spectroscopy) measurements confirmed the formation of Pd (Ar) or PdO (O2) with up to 12 mol% C impurity.
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Affiliation(s)
- Andrea Preuß
- Technische Universität Chemnitz , Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry , D-09107 Chemnitz , Germany
- MAIN Research Center , Rosenbergstraße 6 , 09126 Chemnitz , Germany
| | - Marcus Korb
- University of Western Australia , School of Molecular Sciences , Perth , WA 6009 , Australia
| | - Tobias Rüffer
- Technische Universität Chemnitz , Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry , D-09107 Chemnitz , Germany
| | - Jörn Bankwitz
- Fraunhofer Institute for Electronic Nano Systems (ENAS) , Technologie-Campus 3 , D-09126 Chemnitz , Germany
| | - Colin Georgi
- Fraunhofer Institute for Electronic Nano Systems (ENAS) , Technologie-Campus 3 , D-09126 Chemnitz , Germany
| | - Alexander Jakob
- Technische Universität Chemnitz , Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry , D-09107 Chemnitz , Germany
| | - Stefan E. Schulz
- Fraunhofer Institute for Electronic Nano Systems (ENAS) , Technologie-Campus 3 , D-09126 Chemnitz , Germany
- Technische Universität Chemnitz , Center for Microtechnologies , D-09107 Chemnitz , Germany
| | - Heinrich Lang
- Technische Universität Chemnitz , Faculty of Natural Sciences, Institute of Chemistry, Inorganic Chemistry , D-09107 Chemnitz , Germany
- MAIN Research Center , Rosenbergstraße 6 , 09126 Chemnitz , Germany , Phone: +49 (0)371 531 21210, Fax: +49 (0)371 531 21219
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Ahumada G, Oyarce J, Roisnel T, Kahlal S, del Valle MA, Carrillo D, Saillard JY, Hamon JR, Manzur C. Synthesis, structures, electrochemical and quantum chemical investigations of Ni(ii) and Cu(ii) complexes with a tetradentate Schiff base derived from 1-(2-thienyl)-1,3-butanedione. NEW J CHEM 2018. [DOI: 10.1039/c8nj04923h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical oxidation of four-coordinate square planar Schiff-base Ni(ii) and Cu(ii) complexes leads to the formation of oligomers at the electrode.
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Affiliation(s)
- Guillermo Ahumada
- Laboratorio de Química Inorgánica
- Instituto de Química
- Facultad de Ciencias
- Pontificia Universidad Católica de Valparaíso
- Valparaíso
| | - Jocelyn Oyarce
- Laboratorio de Química Inorgánica
- Instituto de Química
- Facultad de Ciencias
- Pontificia Universidad Católica de Valparaíso
- Valparaíso
| | - Thierry Roisnel
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Samia Kahlal
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - María Angélica del Valle
- Laboratorio de Electroquímica de Polímeros (LEP)
- Pontificia Universidad Católica de Chile
- 7820436 Macul
- Chile
| | - David Carrillo
- Laboratorio de Química Inorgánica
- Instituto de Química
- Facultad de Ciencias
- Pontificia Universidad Católica de Valparaíso
- Valparaíso
| | - Jean-Yves Saillard
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Jean-René Hamon
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Carolina Manzur
- Laboratorio de Química Inorgánica
- Instituto de Química
- Facultad de Ciencias
- Pontificia Universidad Católica de Valparaíso
- Valparaíso
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