Syntheses, structural characterization and antimicrobial activities of novel cobalt-pyrazine-2,3-dicarboxylate complexes with N-donor ligands

Yeşılel, Okan Zafer; Mutlu, Ahmet; Darcan, Cihan; Büyükgüngör, Orhan

doi:10.1016/j.molstruc.2009.10.048

Cited by 23 publications

(10 citation statements)

References 34 publications

(37 reference statements)

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“…The IR spectrum of H2pzdc displays a broad band at approximately 2500 cm -1 [43,44]. The disappearance of this broad band in the IR spectra of the coordination polymers demonstrated that H2pzdc lost two hydrogens with coordination polymer formation and coordinates to the metal ions via the deprotonated oxygen atoms of the carboxylate groups [31,[43][44][45]. The peaks of the (C=O) and (C=N) stretch vibrations belonging to H2pzdc appeared at lower energetic frequencies in the IR spectra of the coordination polymers.…”

Section: Ir Spectroscopymentioning

confidence: 99%

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Cu(II) and Cd(II) coordination polymers derived from pyrazine-2,3-dicarboxylato and 1-vinylimidazole ligands: Synthesis, characterization and hydrogen storage capacities

Gördük

Yilmaz

Andaç

2019

Maced. J. Chem. Chem. Eng.

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In this study, two new coordination polymers of Cu(II) and Cd(II) ions with pyrazine-2,3-dicarboxylic acid and 1-vinylimidazole were synthesized. The structures of these coordination polymers were characterized with elemental analysis, infrared spectroscopy, thermal analysis, powder X-ray diffraction, and magnetic susceptibility techniques. According to the results of the thermal analysis, the coordination polymers that contained water molecules decomposed below 100 °C, and the final products for both coordination polymers were the related metal oxides in an oxygen atmosphere. Powder X-ray diffraction analysis revealed that the coordination polymers were in the crystalline form. The hydrogen storage capacities and surface areas of the coordination polymers were also determined. The highest hydrogen storage capacities were measured as 296 ml/g for the Cu(II) coordination polymer and 330 ml/g for the Cd(II) coordination polymer at approximately 75 bar and 75 K.

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Section: Ir Spectroscopymentioning

confidence: 99%

“…There are several known complexes of H2pzdc that act as mono-, di-, or multidentates. For these reasons, H2pzdc is an important bridging ligand that is used to design CPs [29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Cu(II) and Cd(II) coordination polymers derived from pyrazine-2,3-dicarboxylato and 1-vinylimidazole ligands: Synthesis, characterization and hydrogen storage capacities

Gördük

Yilmaz

Andaç

2019

Maced. J. Chem. Chem. Eng.

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“…Stability of 2 during the dissolution indicates that the antiproliferative activity is derived from the complex. Furthermore, cobalt complexes possess in vivo insulin-like properties [52], antifungal [53], antioxidant activity [54] and antimicrobial activities [55,56].…”

Section: Electrochemical Propertiesmentioning

confidence: 99%

Synthesis, characterization, and in vitro antiproliferative and antibacterial studies of tetraazamacrocyclic complexes of Co(II) and Cu(II) with pyromellitic acid

Nikolić¹,

Antić-Stanković

Tanasković

2018

Journal of Coordination Chemistry

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New cationic tetranuclear Co(II) and neutral binuclear Cu(II) complexes with tpmc (N,N´,N´´,N´´´-tetrakis-(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane) and bridging pyromellitate ligand pma (tetraanion 1,2,4,5-benzenetetracarboxylic acid) were isolated. The composition of the compounds is proposed based on elemental analyses (C, H, N, M = Cu, Co), molar conductivity determination, UV-vis, FTIR, EPR, LC-MS and reflectance spectroscopy, magnetic measurements, cyclic voltammetry, as well as TG and DTA. It is proposed that in [Co 4 (pma)(tpmc) 2 ](ClO 4) 4 •6H 2 O (1), cobalt(II) is six-coordinate out of cyclam rings and one OCOfrom pma participates in coordination with one Co(II). In the case of [Cu 2 (pma)tpmc]•8H 2 O (2), one OCOfrom pma bridges two Cu(II). The cytotoxic activity of 1 and 2 was tested against tumor cell lines human cervix adenocarcinoma (HeLa), estrogenreceptor-positive human breast cancer (MCF-7), human myelogenous leukemia (K562) and the human Caucasian Burkitt's lymphoma (Ramos). The IC 50 values for 1 and 2 were within the range 44.66±2.39 to 152.40±2.28 μM, and from 140.88±3.51 to 192.05±2.09 μM, respectively. Both 1 and 2 were tested for antimicrobial activity. We determined that minimal inhibitory concentration for 1 against Staphylococcus aureus, Bacillus subtilis and Klebsiella pneumoniae was 25 mM. Complex 2 did not express activity against tested microbial strains.

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“…The first reported study about the biological activity of cobalt compounds was in 1952, where cobalt(III) compounds of bidentate mustard seemed to act as hypoxia-selective agents [ 4 , 5 ]. Several compounds showed considerable activity against bacteria strains and against leukemia and lymphoma cell lines [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystallographic, spectroscopic studies and biological activity of new cobalt(II) complexes with bioactive mixed sulindac and nitrogen-donor ligands

Shalash

Ali

2017

Chemistry Central Journal

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Four novel complexes [Co(H2O)4(sul)2] 1, [Co(2-ampy)2(sul)2] 2, [Co(H2O)2(1,10-phen) (sul)2] 3 and [Co(2,9-dimephen)(sul)2] 4 (sul = sulindac, 2-ampy = 2-amino pyridine, 1,10-phen = 1,10-phenanthroline and 2,9-dimeph = 2,9-dimethyl-1,10-phenanthroline) were prepared and characterized by IR, UV–Visible spectroscopy and magnetic properties. The crystal structures of complexes 1 and 4 were determined by single-crystal X-ray diffraction. In-vitro anti-bacterial activity for the prepared complexes against Gram-positive (Staphylococcus epidermidis, Staphylococcus aureus) and Gram-negative (Bordetella, Escherichia coli) bacteria and Yeast species (Saccharomyces and Candida) were performed using agar well-diffusion method. Only complex 4 showed reasonable activity against yeast. All compounds showed more anti-bacterial activity against Gram-positive bacteria than Gram-negative.Graphical abstractThis work reports synthesis, crystallographic, spectroscopic studies and biological activity of new cobalt(II) complexes with bioactive mixed sulindac and nitrogen-donor ligands. The crystal structures of complexes 1 and 4 were determined using single-crystal X-ray diffraction. In-vitro anti-bacterial activity of the prepared complexes and their parent ligands were investigated against different Gram-positive and Gram-negative bacteria using agar diffusion method Electronic supplementary materialThe online version of this article (doi:10.1186/s13065-017-0268-2) contains supplementary material, which is available to authorized users.

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Syntheses, structural characterization and antimicrobial activities of novel cobalt-pyrazine-2,3-dicarboxylate complexes with N-donor ligands

Cited by 23 publications

References 34 publications

Cu(II) and Cd(II) coordination polymers derived from pyrazine-2,3-dicarboxylato and 1-vinylimidazole ligands: Synthesis, characterization and hydrogen storage capacities

Cu(II) and Cd(II) coordination polymers derived from pyrazine-2,3-dicarboxylato and 1-vinylimidazole ligands: Synthesis, characterization and hydrogen storage capacities

Synthesis, characterization, and in vitro antiproliferative and antibacterial studies of tetraazamacrocyclic complexes of Co(II) and Cu(II) with pyromellitic acid

Synthesis, crystallographic, spectroscopic studies and biological activity of new cobalt(II) complexes with bioactive mixed sulindac and nitrogen-donor ligands

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