Crystal structure, spectroscopic and magnetic properties, and antimicrobial activities of cobalt(II) 2-methylthionicotinate complexes with N-heterocyclic ligands

Segľa, Peter; Miklovič, Jozef; Mikloš, Dušan; Titiš, Ján; Herchel, Radovan; Moncóľ, Ján; Kaliňáková, Barbora; Hudecová, Daniela; Mrázová, Viera; Lis, Tadeusz; Melnı́k, Milan

doi:10.1007/s11243-008-9137-0

Cited by 15 publications

(6 citation statements)

References 45 publications

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“…Synthesis, spectroscopic and magnetic properties, and crystal structures of some copper(II), cobalt(II) and nickel(II) complexes with furopyridine and its derivatives as ligands have been reported in previous articles [12][13][14][15][16][17][18]. The furopyridines in all structures of the complexes are monodentate nitrogen donor ligands.…”

Section: Introductionmentioning

confidence: 90%

Synthesis, spectroscopic properties, crystal structure and biological activities of copper(II) 2-methylthionicotinate complexes with furopyridines

Segľa

Miklovič

Mikloš

et al. 2008

Transition Met Chem

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The synthesis and characterization of six new 2-methylthionicotinate (2-MeSnic) copper(II) monomeric complexes [Cu(2-MeSnic) 2 L 2 ] (L is furo[3,2-c]pyridinefpy, 2-methylfuro[3,2-c]pyridine-Mefpy, 2,3-dimethylfuro-[3,2-c]pyridine-Me 2 fpy or benzo[4,5]furo[3,2-c]pyridineBfp), [Cu(2-MeSnic) 2 (fpy) 2 (H 2 O)], as well as [Cu(2-MeSnic) 2 (CF 3 Phfpy) 2 (H 2 O) 2 ] (CF 3 Phfpy is 2-(3-trifluoromethylphenyl)furo[3,2-c]pyridine) are reported. The characterizations were based on elemental analysis, infrared, electronic and EPR spectra. The crystal structure of one of the complexes has been determined. The Cu II atoms of [Cu(2-MeSnic) 2 (fpy) 2 (H 2 O)] are six-coordinated in a highly distorted tetragonal-bipyramidal arrangement by two nitrogen atoms, one from each fpy, in trans-positions, by three oxygen atoms of the carboxyl groups of 2-MeSnic ligands (one monodentate, one asymmetrically bidentate), one axial position being occupied by the oxygen of a water molecule. The antimicrobial effects have been tested on various strains of bacteria, yeasts and filamentous fungi. A comparison of the IC 50 and MIC values has shown a decrease of inhibition activities of tested compounds in the order: [Cu(2-MeSnic) 2 (Bfp) 2 ] [ Bfp [ [Cu(2-MeSnic) 2 (CF 3 Phfpy) 2 (H 2 O) 2 ] [ [Cu-(2-MeSnic) 2 (Me 2 fpy) 2 ] [ CF 3 Phfpy [ [Cu(2-MeSnic) 2 (Mefpy) 2 ] [ Me 2 fpy [ [Cu(2-MeSnic) 2 (fpy) 2 (H 2 O)] [ [Cu(2-MeSnic) 2 (H 2 O)] 2 [ Mefpy [ fpy = 2-MeSnicH = CuSO 4 .

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Section: Introductionmentioning

confidence: 90%

Synthesis, spectroscopic properties, crystal structure and biological activities of copper(II) 2-methylthionicotinate complexes with furopyridines

Segľa

Miklovič

Mikloš

et al. 2008

Transition Met Chem

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“…The chelating mode to metal centre can be revealed by D = v as (COO À ) À v s (COO À ). [26][27][28] The D values of both compounds are above 200 cm À1 and indicate a monodentate bonding mode (each oxygen atom to another Mn atom) (Table 3).…”

Section: Spectroscopic Characterizationmentioning

confidence: 99%

An exchange interaction of the antiferromagnetic nature in benzoate bridged Mn(ii) chains

et al. 2022

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“…Advantages of the solid-solid synthesis method are much higher yield, being inexpensive, faster reaction rate, easier operating, energy saving, and environmental friendly [18], and it is in accordance with the requirements of green chemistry. Cobalt is an essential trace element for human and all animals, and its complexes have been used in the fields of medicine, bioinorganic chemistry, functional materials, and so forth [19–24]. At the same time, the cobalt compounds are often used in chemical reactions as oxidation catalysts, such as typical catalysts that are the cobalt carboxylates, which are also used in paints, varnishes, and pigments industry [25].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure, and Thermal Decomposition of the Cobalt(II) Complex with 2-Picolinic Acid

2014

The Scientific World Journal

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The cobalt(II) complex of 2-picolinic acid (Hpic), namely, [Co(pic)2(H2O)2] · 2H2O, was synthesized with the reaction of cobalt acetate and 2-picolinic acid as the reactants by solid-solid reaction at room temperature. The composition and structure of the complex were characterized by elemental analysis, infrared spectroscopy, single crystal X-ray diffraction, and thermogravimetry-differential scanning calorimetry (TG-DSC). The crystal structure of the complex belongs to monoclinic system and space group P2(1)/n, with cell parameters of a = 9.8468(7) Å, b = 5.2013(4) Å, c = 14.6041(15) Å, β = 111.745(6)°, V = 747.96(11) Å3, Z = 2, D c = 1.666 g cm−3, R 1 = 0.0297, and wR 2 = 0.0831. In the title complex, the Co(II) ion is six-coordinated by two pyridine N atoms and two carboxyl O atoms from two 2-picolinic acid anions, and two O atoms from two H2O molecules, and forming a slightly distorted octahedral geometry. The thermal decomposition processes of the complex under nitrogen include dehydration and pyrolysis of the ligand, and the final residue is cobalt oxalate at about 450°C.

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Crystal structure, spectroscopic and magnetic properties, and antimicrobial activities of cobalt(II) 2-methylthionicotinate complexes with N-heterocyclic ligands

Cited by 15 publications

References 45 publications

Synthesis, spectroscopic properties, crystal structure and biological activities of copper(II) 2-methylthionicotinate complexes with furopyridines

Synthesis, spectroscopic properties, crystal structure and biological activities of copper(II) 2-methylthionicotinate complexes with furopyridines

An exchange interaction of the antiferromagnetic nature in benzoate bridged Mn(ii) chains

Synthesis, Crystal Structure, and Thermal Decomposition of the Cobalt(II) Complex with 2-Picolinic Acid

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