1
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Synthesis, crystal structures, electrochemical and gas adsorption properties of two 1D silver(I) coordination polymers constructed from racemic helical ligands. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2022.121242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Subin Kumar K. Design, one-pot synthesis, cytotoxic, in vivo anticancer, antioxidant and antimicrobial evaluation of a novel mixed schiff base ligand and its metal complexes. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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3
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Ismael M, Abdel-Mawgoud AMM, Rabia MK, Abdou A. Ni(II) mixed-ligand chelates based on 2-hydroxy-1-naphthaldehyde as antimicrobial agents: Synthesis, characterization, and molecular modeling. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115611] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4
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Subin Kumar K, Reena V, Aravindakshan K. Synthesis, anticancer and larvicidal activities of a novel Schiff base ligand, 3-((2-((1-(4-hydroxyphenyl)ethylidene)amino)ethyl)imino)-N-(p-tolyl)butanamide and its Mn(II), Fe(III), Co(II), Ni(II) and Zn(II) complexes. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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5
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Subin Kumar K, Aravindakshan K. Synthesis, cytotoxic, anticancer and antimicrobial activities of some metal complexes of a novel tetradentate Schiff base ligand, (E)-3-((2-((E)-(1-(2-hydroxyphenyl)ethylidene)amino)ethyl)imino)-N-phenylbutanamide. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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6
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Shah R, Katouah H, Sedayo AA, Abualnaja M, Aljohani MM, Saad F, Zaky R, El-Metwaly NM. Practical and computational studies on novel Schiff base complexes derived from green synthesis approach: Conductometry as well as in-vitro screening supported by in-silico study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114116] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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7
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Aggoun D, Fernández-García M, López D, Bouzerafa B, Ouennoughi Y, Setifi F, Ourari A. New nickel (II) and copper (II) bidentate Schiff base complexes, derived from dihalogenated salicylaldehyde and alkylamine: Synthesis, spectroscopic, thermogravimetry, crystallographic determination and electrochemical studies. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114640] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Mahmoud WH, Mahmoud NF, Mohamed GG. New nanobidentate Schiff base ligand of 2-aminophenol with 2-acetyl ferrocene with some lanthanide metal ions: synthesis, characterization and Hepatitis A, B, C and breast cancer docking studies. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1391379] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Walaa H. Mahmoud
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
| | - Nessma F. Mahmoud
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
| | - Gehad G. Mohamed
- Faculty of Science, Chemistry Department, Cairo University, Giza, Egypt
- Egypt Nanotechnology Center, Cairo University, 6th October City, Egypt
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9
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Baran T. A new chitosan Schiff base supported Pd(II) complex for microwave-assisted synthesis of biaryls compounds. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.122] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Prakash TD, Dhayabaran VV. Bioactive M(II) complexes of amino acid-based N 3O donor mixed ligand: in vitro and in silico DNA binding studies. J Chem Biol 2017; 10:117-127. [PMID: 28684998 DOI: 10.1007/s12154-017-0170-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 04/19/2017] [Indexed: 11/26/2022] Open
Abstract
Three novel mixed ligand M(II) complexes, namely [CoL1L2Cl2] (1), [CuL1L2Cl2] (2), and [ZnL1L2Cl2] (3), were synthesized using 1,4-naphthoquinone, L-histidine, and 1,10-phenanthroline as ligands. The ligand framework and the corresponding structural changes on complexation were ascertained based on the results of elemental analysis, conductivity measurements, magnetic behavior, FT-IR, UV-visible, 1H NMR, 13C NMR, ESR spectral studies, and ESI mass spectrometry. The biological action of the ligand (L) and complexes 1-3 such as DNA binding and cleaving ability were studied. Results suggest that the ligand and the complexes could interact with calf thymus-DNA (CT-DNA) via intercalation mode. Additionally, complex 2 displayed potential antioxidant activity in in vitro studies. Docking simulation was performed to position the ligand and the complexes into the active site of BDNA (IBNA) to determine the probable binding mode.
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Affiliation(s)
- T Daniel Prakash
- PG and Research Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli, Tamilnadu 620017 India
| | - V Violet Dhayabaran
- PG and Research Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli, Tamilnadu 620017 India
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11
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Gao B, Zhang D, Cui K, Du R. Effect of ligand structure of Schiff base oxovanadium(IV) complexes on their catalytic activity in aerobic oxidation of alcohols. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1324153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Baojiao Gao
- Department of Chemical Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Dandan Zhang
- Department of Chemical Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Kunli Cui
- Department of Chemical Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Ruikui Du
- Department of Chemical Engineering, North University of China, Taiyuan, People’s Republic of China
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12
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Dhayabaran VV, Prakash TD. Synthesis and multi‐spectroscopic study on DNA‐binding, cleavage and biological properties of M(II) complexes based on N
2
O
2
donor Schiff base ligand. LUMINESCENCE 2017; 32:1339-1348. [DOI: 10.1002/bio.3330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/30/2017] [Accepted: 03/05/2017] [Indexed: 12/16/2022]
Affiliation(s)
- V. Violet Dhayabaran
- PG and Research Department of Chemistry Bishop Heber College Tiruchirappalli India
| | - T. Daniel Prakash
- PG and Research Department of Chemistry Bishop Heber College Tiruchirappalli India
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13
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Beyazit N, Çakmak D, Demetgül C. Chromone-based Schiff base metal complexes as catalysts for catechol oxidation: Synthesis, kinetics and electrochemical studies. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.081] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Shokohi-Pour Z, Chiniforoshan H, Sabzalian MR, Esmaeili SA, Momtazi-Borojeni AA. Cobalt (II) complex with novel unsymmetrical tetradentate Schiff base (ON) ligand: in vitro cytotoxicity studies of complex, interaction with DNA/protein, molecular docking studies, and antibacterial activity. J Biomol Struct Dyn 2017; 36:532-549. [PMID: 28271957 DOI: 10.1080/07391102.2017.1287006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
[C20H17N3O2] and cobalt (II) complex [Co(L2)(MeOH)2].ClO4, (L2 = 4-((E)-1-((2-(((E)-pyridin-2-ylmethylene) amino) phenyl) imino) ethyl) benzene-1, 3-diol) novel Schiff base has been synthesiszed and chracterized by Fourier transform infrared, UV-vis, 1H-NMR spectroscopy, and elemental analysis techniques. The interaction of Co(II) complex with DNA and BSA was investigated by electronic absorption spectroscopy, fluorescence spectroscopy, circular dichroism, and thermal denaturation studies. Our experiments indicate that this complex could strongly bind to CT-DNA via minor groove mechanism. In addition, fluorescence spectrometry of BSA with the complex showed that the fluorescence quenching mechanism of BSA was of static type. The complex exhibited significant in vitro cytotoxicity against three human cancer cell lines (JURKAT, SKOV3, and U87). The molecular docking experiment effectively proved the binding of complex to DNA and BSA. Finally, antibacterial assay over gram-positive and gram-negative pathogenic bacterial strains was studied.
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Affiliation(s)
- Zahra Shokohi-Pour
- a Department of Chemistry , Isfahan University of Technology , Isfahan 84156-83111 , Iran
| | - Hossein Chiniforoshan
- a Department of Chemistry , Isfahan University of Technology , Isfahan 84156-83111 , Iran
| | - Mohammad R Sabzalian
- b Department of Agronomy and Plant Breeding , College of Agriculture, Isfahan University of Technology , Isfahan 84156-83111 , Iran
| | - Seyed-Alireza Esmaeili
- c Student Research Committee, Department of Immunology and Allergy , Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences , Mashhad , Iran
| | - Amir Abbas Momtazi-Borojeni
- d Student Research Committee, Department of Medical Biotechnology , Nanotechnology Research Center, School of Medicine, Mashhad University of Medical Sciences , Mashhad , Iran
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15
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Synthesis, characterization and X-ray crystal structure of novel nickel Schiff base complexes and investigation of their catalytic activity in the electrocatalytic reduction of alkyl and aryl halides. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-1022-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Novel Bioactive Co(II), Cu(II), Ni(II) and Zn(II) Complexes with Schiff Base Ligand Derived from Histidine and 1,3-Indandione: Synthesis, Structural Elucidation, Biological Investigation and Docking Analysis. J Fluoresc 2016; 27:135-150. [DOI: 10.1007/s10895-016-1941-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/21/2016] [Indexed: 12/25/2022]
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17
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Purtaş S, Köse M, Tümer F, Tümer M, Gölcü A, Ceyhan G. A novel porphyrin derivative and its metal complexes: Electrochemical, photoluminescence, thermal, DNA-binding and superoxide dismutase activity studies. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.10.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Arun T, Packianathan S, Malarvizhi M, Antony R, Raman N. Bio-relevant complexes of novel N2O2 type heterocyclic ligand: Synthesis, structural elucidation, biological evaluation and docking studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 149:93-102. [PMID: 26057019 DOI: 10.1016/j.jphotobiol.2015.05.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 05/27/2015] [Accepted: 05/28/2015] [Indexed: 01/20/2023]
Abstract
Organic and inorganic entities [Cu(II), Co(II), Ni(II) and Zn(II)] have been bridged by N2O2 type heterocyclic imine (CN) ligand for the synthesis of novel organic-inorganic bridged complexes of the type [M(H2L)]. The synthesized complexes were characterized by spectral techniques such as FT-IR, UV-visible, (1)H NMR, (13)C NMR, EPR, ESI-Mass, elemental analysis, magnetic susceptibility and molar conductivity measurements. The metal complexes adopt square planar geometrical arrangement around the metal ions. DNA binding ability of these complexes has been explored by different techniques viz. electronic absorption, fluorescence, cyclic voltammetry, differential pulse voltammetry and viscosity measurements. These studies prove that CT DNA interaction of the complexes follows intercalation mode. The oxidative cleavage of the complexes with pUC19 DNA has been investigated by gel electrophoresis. Molecular docking calculations have been performed to understand the nature of binding of the complexes with DNA. Moreover, the anti-pathogenic actions of the complexes were tested in vitro against few bacteria and fungi by disk diffusion method. The data reveal that the complexes have higher anti-pathogenic activity than the ligand.
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Affiliation(s)
- T Arun
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamil Nadu, India
| | - S Packianathan
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamil Nadu, India
| | - M Malarvizhi
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamil Nadu, India
| | - R Antony
- Organometallics and Materials Chemistry Lab, IIT-Bombay, Powai, Mumbai 400076, India
| | - N Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, Tamil Nadu, India.
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19
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Ceyhan G, Köse M, Tümer M, Demirtaş İ. Anticancer, photoluminescence and electrochemical properties of structurally characterized two imine derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:731-743. [PMID: 25988819 DOI: 10.1016/j.saa.2015.05.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/17/2015] [Accepted: 05/05/2015] [Indexed: 06/04/2023]
Abstract
Two imine compounds, 4-[(E)-(2-methoxybenzylidene)amino]phenol (L(1)) and 4-[(E)-(3,4-dimethoxybenzylidene)amino]phenol (L(2)) were synthesized and characterized by the analytical and spectroscopic methods. The electrochemical and photoluminescence properties of the imine compounds L(1) and L(2) were investigated in different solvents. The compounds L(1) and L(2) show different redox processes at some potentials. The molecular structures of two Schiff base compounds are broadly similar, differing principally in the position, the number of methoxy (-OCH3) groups and dihedral angles between aromatic rings. While the compound L(1) has only one methoxy group located on the o-position with respect to the imine bond (C=N), the L(2) contains two methoxy groups on the p-m-positions with respect to the imine bond. The imine compounds show two or three emission bands in the 619-832 nm range in organic solvents. In the 1.0×10(-3) M concentration, the compounds have the highest excitation and emission bands. The imine compounds L(1) and L(2) were screened for their in vitro cytotoxicity on HeLa cell lines using the xCELLigence system (Real Time Cell Analyzer).
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Affiliation(s)
- Gökhan Ceyhan
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Muhammet Köse
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Mehmet Tümer
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey.
| | - İbrahim Demirtaş
- Chemistry Department, Çankırı Karatekin University, 18100 Çankırı, Turkey
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20
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Köse M, Ceyhan G, Tümer M, Demirtaş I, Gönül İ, McKee V. Monodentate Schiff base ligands: their structural characterization, photoluminescence, anticancer, electrochemical and sensor properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:477-485. [PMID: 25238187 DOI: 10.1016/j.saa.2014.08.088] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 08/21/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
Two Schiff base compounds, N,N'-bis(2-methoxy phenylidene)-1,5-diamino naphthalene (L(1)) and N,N'-bis(3,4,5-trimethoxy phenylidene)-1,5-diamino naphthalene (L(2)) were synthesized and characterized by the analytical and spectroscopic methods. The electrochemical and photoluminescence properties of the Schiff bases were investigated in the different conditions. The compounds L(1) and L(2) show the reversible redox processes at some potentials. The sensor properties of the Schiff bases were examined and color changes were observed upon addition of the metal cations, such as Hg(II), Cu(II), Co(II) and Al(III). The Schiff base compounds show the bathochromic shift from 545 to 585 nm. The single crystals of the compounds (L(1)) and (L(2)) were obtained from the methanol solution and characterized structurally by the X-ray crystallography technique. The molecule L(2) is centrosymmetric whereas the L(1) has no crystallographically imposed molecular symmetry. However, the molecular structures for these compounds are quite similar, differing principally in the conformation about methoxy groups and the dihedral angle between the two aromatic rings and diamine naphthalene.
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Affiliation(s)
- Muhammet Köse
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Gökhan Ceyhan
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey
| | - Mehmet Tümer
- Chemistry Department, K.Maras Sütcü Imam University, 46100 K.Maras, Turkey.
| | - Ibrahim Demirtaş
- Chemistry Department, Çankırı Karatekin University, 18100 Çankırı, Turkey
| | - İlyas Gönül
- Chemistry Department, Çukurova University, 01100 Adana, Turkey
| | - Vickie McKee
- Chemistry Department, Loughborough University, LE11 3TU Leics, UK
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21
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Catalytic activities of novel silica-supported multifunctional Schiff base ligand & metal complexes under microwave irradiation. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Arun TR, Raman N. Antimicrobial efficacy of phenanthrenequinone based Schiff base complexes incorporating methionine amino acid: structural elucidation and in vitro bio assay. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:292-302. [PMID: 24632238 DOI: 10.1016/j.saa.2014.02.074] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 01/29/2014] [Accepted: 02/11/2014] [Indexed: 06/03/2023]
Abstract
This work focuses the synthesis and characterization of few novel mixed ligand Schiff base metal complexes and their biological activities. For deriving the structural aspects, spectral techniques such as FT-IR, UV-Vis., (1)H NMR, Raman, EPR and the physicochemical characterizations including elemental analysis, molar conductance and magnetic susceptibility method have been involved. All the complexes adopt square planar geometry. DNA binding ability of these complexes has been explored using diverse techniques viz. UV-Vis. absorption, fluorescence spectroscopy, viscometry and cyclic voltammetry. These studies prove that CT-DNA binding of the complexes follows the intercalation mode. Comparative DNA oxidative cleavage ability of the complexes has been done under ultraviolet photo radiation on pUC19 DNA. In addition, the biocidal action of the complexes has been investigated against few pathogenic bacteria and fungi by disc diffusion method. Importantly, the amylase inhibition activity of Cu(II) complex has been explored. The amylase inhibition property has been found to be increased upon increasing the complex concentration.
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Affiliation(s)
- Thesingu Rajan Arun
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India
| | - Natarajan Raman
- Research Department of Chemistry, VHNSN College, Virudhunagar 626 001, India.
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23
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Kacan M, Turkyilmaz M, Karabulut F, Altun O, Baran Y. Complexation, thermal and catalytic studies of N-substituted piperazine, morpholine and thiomorpholine with some metal ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:572-577. [PMID: 24091345 DOI: 10.1016/j.saa.2013.09.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 09/06/2013] [Indexed: 06/02/2023]
Abstract
Several Cu(II), Pt(II) and Ni(II) complexes of N-substituted, piperazine (NN donor), morpholine (NO donor) and thiomorpholine (NS donor) derivatives were synthesized and their thermal behavior and catalytic activity in epoxidation reaction of cis-diphenylethylene were studied using oxygen sources NaOCl. The coordination compounds of Cu(II), Pt(II) and Ni(II) having general formula [MLCl]Cl, [ML2l]Cl2 or [ML]Cl2 with tetra coordinated geometry around metal ions have been isolated as solid. All the ligands and complexes were identified by spectroscopic methods and elemental analysis, magnetic measurements, electrical conductance and thermal analysis. A square planer structures have been proposed for all complexes. The thermal stability of the complexes discussed in terms of ligands donor atoms, geometry and central metal ions. The complexes have a similar thermal behavior for the selected metal ions. The thermogravimetric analyses suggest high thermal stability for most complexes followed by thermal decomposition in different steps. The decomposition processes were observed as water elimination, chloride anion removal and degradation of the organic ligands. Catalytic ability of the complexes were examined and found that all the complexes can effectively catalyze the epoxidation of cis-stilbene with NaOCl.
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Affiliation(s)
- Mesut Kacan
- Trakya University, Science Faculty, Department of Chemistry, Edirne, Turkey
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24
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Koçer S, Uruş S, Çakır A, Güllüce M, Dığrak M, Alan Y, Aslan A, Tümer M, Karadayı M, Kazaz C, Dal H. The synthesis, characterization, antimicrobial and antimutagenic activities of hydroxyphenylimino ligands and their metal complexes of usnic acid isolated from Usnea longissima. Dalton Trans 2014; 43:6148-64. [DOI: 10.1039/c3dt53624f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Schiff base ligands of usnic acid isolated from Usnea longissima and their metal complexes were synthesized and characterized. Investigated their antimicrobial and antimutagenic activities.
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Affiliation(s)
- Sibel Koçer
- Department of Chemistry
- Faculty of Science and Letters
- Kilis 7 Aralık University
- Kilis, Turkey
| | - Serhan Uruş
- Department of Chemistry
- Faculty of Science and Letters
- Kahramanmaraş Sütçü İmam University
- Kahramanmaraş, Turkey
- K. Maraş Sütçü Imam University
| | - Ahmet Çakır
- Department of Chemistry
- Faculty of Science and Letters
- Kilis 7 Aralık University
- Kilis, Turkey
| | - Medine Güllüce
- Department of Biology
- Faculty of Science
- Atatürk University
- Erzurum, Turkey
| | - Metin Dığrak
- Department of Biology
- Faculty of Science and Letters
- Kahramanmaraş Sütçü İmam University
- Kahramanmaraş, Turkey
| | - Yusuf Alan
- Department of Biology
- Faculty of Science
- Muş Alparslan University
- Muş, Turkey
| | - Ali Aslan
- Department of Biology
- Kazım Karabekir Education Faculty
- Atatürk University
- Erzurum, Turkey
| | - Mehmet Tümer
- Department of Chemistry
- Faculty of Science and Letters
- Kahramanmaraş Sütçü İmam University
- Kahramanmaraş, Turkey
| | - Mehmet Karadayı
- Department of Biology
- Faculty of Science
- Atatürk University
- Erzurum, Turkey
| | - Cavit Kazaz
- Department of Chemistry
- Faculty of Science
- Atatürk University
- Erzurum, Turkey
| | - Hakan Dal
- Department of Chemistry
- Faculty of Science
- Anadolu University
- Eskişehir, Turkey
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25
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Cristóvão B, Miroslaw B. Propeller-like heterotrinuclear CuII–LnIII–CuII compounds – Physicochemical properties. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.03.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Antony R, Theodore David S, Saravanan K, Karuppasamy K, Balakumar S. Synthesis, spectrochemical characterisation and catalytic activity of transition metal complexes derived from Schiff base modified chitosan. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:423-30. [PMID: 23274227 DOI: 10.1016/j.saa.2012.09.101] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/10/2012] [Accepted: 09/14/2012] [Indexed: 05/22/2023]
Abstract
Three novel quadridentate Schiff base complexes, [Cu(OIAC)Cl(2)], [Co(OIAC)Cl(2)] and [Ni(OIAC)Cl(2)] [OIAC, a Schiff base ligand: (([2-oxo-1H-indol-3-ylidene]amino)chitosan)] have been synthesized. The molecular structure of the complexes has been characterised by elemental analyses, magnetic measurements, molar conductance studies, vibrational (FT-IR), electronic (UV-Vis) and (1)H NMR spectroscopic techniques. Thermal properties of the complexes have been investigated with TG-DTG analyses. The surface morphological difference of ligand and the complexes has been explored with scanning electron microscopy. The crystallinity of the compounds was analysed by powder X-ray diffraction technique and it was found to be less for the Schiff base (OIAC) and the complexes as compared to the chitosan. The catalytic activities of the complexes have been studied in the oxidation of cyclohexane, using environmental friendly oxidant, hydrogen peroxide. Complex with rough surface has shown higher catalytic activity compared to the other complexes.
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Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology, Tirunelveli 627 152, Tamilnadu, India
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Ceyhan G, Köse M, McKee V, Uruş S, Gölcü A, Tümer M. Tetradentate Schiff base ligands and their complexes: synthesis, structural characterization, thermal, electrochemical and alkane oxidation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 95:382-398. [PMID: 22571942 DOI: 10.1016/j.saa.2012.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 03/12/2012] [Accepted: 04/03/2012] [Indexed: 05/31/2023]
Abstract
Three Schiff base ligands (H(2)L(1)-H(2)L(3)) with N(2)O(2) donor sites were synthesized by condensation of 1,5-diaminonapthalene with benzaldehyde derivatives. A series of Cu(II), Co(II), Ni(II), Mn(II) and Cr(III) complexes were prepared and characterized by spectroscopic and analytical methods. Thermal, electrochemical and alkane oxidation reactions of the ligands and their metal complexes were investigated. Extensive application of 1D ((1)H, (13)C NMR) and 2D (COSY, HETCOR, HMBC and TOSCY) NMR techniques were used to characterize the structures of the ligands and establish the (1)H and (13)C resonance assignments of the three ligands. Ligands H(2)L(1) and H(2)L(3) were obtained as single crystals from THF solution and characterized by X-ray diffraction. Both molecules are centrosymmetric and asymmetric unit contains one half of the molecule. Catalytic alkane oxidation reactions with the transition metal complexes investigated using cyclohexane and cyclooctane as substrates. The Cu(II) and Cr(III) complexes showed good catalytic activity in the oxidation of cyclohexane and cyclooctane to desired oxidized products. Electrochemical and thermal properties of the compounds were also investigated.
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Affiliation(s)
- Gökhan Ceyhan
- Kahramanmaraş Sütçü Imam University, Chemistry Department, 46100 K. Maras, Turkey
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Rodionova LI, Smirnov AV, Borisova NE, Khrustalev VN, Moiseeva AA, Grünert W. Binuclear cobalt complex with Schiff base ligand: Synthesis, characterization and catalytic properties in partial oxidation of cyclohexane. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.06.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Demirezen N, Tarınç D, Polat D, Ceşme M, Gölcü A, Tümer M. Synthesis of trimethoprim metal complexes: Spectral, electrochemical, thermal, DNA-binding and surface morphology studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 94:243-255. [PMID: 22525034 DOI: 10.1016/j.saa.2012.03.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 03/05/2012] [Accepted: 03/22/2012] [Indexed: 05/31/2023]
Abstract
Complexes of trimethoprim (TMP), with Cu(II), Zn(II), Pt(II), Ru(III) and Fe(III) have been synthesized. Then, these complexes have been characterized by spectroscopic techniques involving UV-vis, IR, mass and (1)H NMR. CHN elemental analysis, electrochemical and thermal behavior of complexes have also been investigated. The electrochemical properties of all complexes have been investigated by cyclic voltammetry (CV) using glassy carbon electrode. The biological activity of the complexes has been evaluated by examining their ability to bind to calf-thymus DNA (CT DNA) with UV spectroscopy and cyclic voltammetry. UV studies of the interaction of the complexes with DNA have shown that these compounds can bind to CT DNA. The binding constants of the complexes with CT DNA have also been calculated. The cyclic voltammograms of the complexes in the presence of CT DNA have shown that the complexes can bind to CT DNA by both the intercalative and the electrostatic binding mode. The antimicrobial activity of these complexes has been evaluated against three Gram-positive and four Gram-negative bacteria. Antifungal activity against two different fungi has been evaluated and compared with the reference drug TMP. Almost all types of complexes show excellent activity against all type of bacteria and fungi. The morphology of the CT DNA, TMP, metal ions and metal complexes has been investigated by scanning electron microscopy (SEM). To get the SEM images, the interaction of compounds with CT DNA has been studied by means of differential pulse voltammetry (DPV) at CT DNA modified pencil graphite electrode (PGE). The decrease in intensity of the guanine oxidation signals has been used as an indicator for the interaction mechanism.
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Affiliation(s)
- Nihat Demirezen
- Department of Chemistry, Faculty of Science and Letters, University of Kahramanmaras Sutcu Imam, Campuse of Avsar, 46100 Kahramanmaras, Turkey
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Khalaji AD, Dušek M, Fejfarová K. [ N, N′-Bis(2,3,4-trimethoxybenzylidene)ethane-1,2-diamine-κ 2N, N′]dibromidomercury(II). Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1044. [PMID: 22904720 PMCID: PMC3414113 DOI: 10.1107/s1600536812030577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 07/04/2012] [Indexed: 12/03/2022]
Abstract
In the title compound, [HgBr2(C22H28N2O6)], the HgII ion is bonded to two Br− ions and two N atoms of the chelating Schiff base ligand in a distorted tetrahedral geometry. The Schiff base ligand adopts an E,E conformation. The dihedral angle between the planes of the two halves of the central N,N′-dimethylethylenediamine part of the ligand is 2.3 (11)°. The crystal studied was twinned by pseudomerohedry [twin law (0-10/-100/00-1)]; the contribution of the minor twin component refined to 0.208 (3).
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Electrochemical behavior and antioxidant activity of tetradentate Schiff bases and their copper(II) complexes. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-012-0102-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Uruş S, Özdemir M, Ceyhan G, Tümer M. Chemically Modified Silica-Gel With an Azo-Schiff Ligand and Its Metal Complexes With Cu(II), Co(II), Ni(II) and Mn(II): Applications as Catalysts on the Oxidation of Cyclohexane Under Microwave Power. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/15533174.2011.611208] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Serhan Uruş
- a Chemistry Department, Faculty of Science and Letters , Kahramanmaraş Sütçü İmam University , Kahramanmaraş , Turkey
- b Research and Development Centre For University-Industry-Public Relations, Kahramanmaraş Sütçü İmam University , Kahramanmaraş , Turkey
| | - Mecit Özdemir
- c Chemistry Department, Faculty of Science and Letters , Kilis 7 Aralık University , Kilis , Turkey
| | - Gökhan Ceyhan
- a Chemistry Department, Faculty of Science and Letters , Kahramanmaraş Sütçü İmam University , Kahramanmaraş , Turkey
| | - Mehmet Tümer
- a Chemistry Department, Faculty of Science and Letters , Kahramanmaraş Sütçü İmam University , Kahramanmaraş , Turkey
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Synthesis and spectral characterization of mercury(II) complexes with the bidentate Schiff base ligand N,N′-bis(2,3-dimethoxybenzylidene)-1,2-diaminoethane: The crystal structures of [Hg((23-MeO-ba)2en)I2] and [Hg((23-MeO-ba)2en)Br2]. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.08.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ceyhan G, Çelik C, Uruş S, Demirtaş İ, Elmastaş M, Tümer M. Antioxidant, electrochemical, thermal, antimicrobial and alkane oxidation properties of tridentate Schiff base ligands and their metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 81:184-198. [PMID: 21752697 DOI: 10.1016/j.saa.2011.05.106] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 05/26/2011] [Accepted: 05/30/2011] [Indexed: 05/31/2023]
Abstract
In this study, two Schiff base ligands (HL(1) and HL(2)) and their Cu(II), Co(II), Ni(II), Pd(II) and Ru(III) metal complexes were synthesized and characterized by the analytical and spectroscopic methods. Alkane oxidation activities of the metal complexes were studied on cyclohexane as substrate. The ligands and their metal complexes were evaluated for their antimicrobial activity against Corynebacterium xerosis, Bacillus brevis, Bacillus megaterium, Bacillus cereus, Mycobacterium smegmatis, Staphylococcus aureus, Micrococcus luteus and Enterococcus faecalis (as gram-positive bacteria) and Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli, Yersinia enterocolitica, Klebsiella fragilis, Saccharomyces cerevisiae, and Candida albicans (as gram-negative bacteria). The antioxidant properties of the Schiff base ligands were evaluated in a series of in vitro tests: 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging and reducing power activity of superoxide anion radical generated non-enzymatic systems. Electrochemical and thermal properties of the compounds were investigated.
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Affiliation(s)
- Gökhan Ceyhan
- Kahramanmaraş Sütçü Imam University, Chemistry Department, 46100 K.Maras, Turkey
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Khalaji AD, Fejfarova K, Dusek M. New complex of mercury(II) with Schiff base derived from A-methylcinnamaldehyde and ethylenediamine. RUSS J COORD CHEM+ 2011. [DOI: 10.1134/s1070328411100046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Uruş S, Dolaz M, Tümer M. Synthesis and Catalytic Activities of Silica-Supported Multifunctional Azo-Containing Schiff Base Complexes with Cu(II), Co(II), Ni(II) and Mn(II). J Inorg Organomet Polym Mater 2010. [DOI: 10.1007/s10904-010-9394-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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