Two versatile salicylatocopper(II) complexes: Structure, spectral, magnetic, electrochemical properties and SOD mimetic activity

Puchoňová, Miroslava; Matejová, Simona; Jorı́k, Vladimı́r; Šalitroš, Ivan; Švorc, Ľubomír; Mazúr, Milan; Moncóľ, Ján; Valigura, Dušan

doi:10.1016/j.poly.2018.05.036

Cited by 14 publications

(6 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact for manganese (II) complexes the magnetic moment values of 5.69 µB and 5.54 µB for complex (1) and complex (3) respectively are in accordance with the presence of one manganese (II) atom per molecule [34]. For the complex (4) of copper (II) the magnetic moment values of 1.66 µB is in the range expected for a mononuclear copper (II) complex [35]. The infrared spectra of the various synthesized compounds were used to determine the different coordination modes of organic ligands and transition metal anions.…”

Section: [Insert Scheme 1]supporting

confidence: 58%

Metal transition complexes of tridentate Schiff base ligands derived from 2-hydrazinopyridine: synthesis, spectroscopic characterization and X-ray structures

et al. 2019

View full text Add to dashboard Cite

Mononuclear complexes of 1-(pyridin-2-ylmethylidene)-2-(pyridin-2-yl)hydrazine (HL 1 ) and 1-(pyridin-2-yl)-2-(1-, [Zn(HL 1 )(CH3COO)2] . (H2O)3 (2), [Mn(HL 2 )2] . (ClO4)2 (3) and [Cu(HL 2 )(NO3)2] (4), were synthesized and characterized by physico-chemical and spectroscopic methods and X-ray structure determination. The mononuclear compounds 1, 2 and 4 contain one ligand molecule per metal atom while the manganese (II) atom in the compound 3 is coordinated to two ligand molecules. Both ligands coordinated to the transition metal center in tridentate fashion through two Npyridyl atoms and one Nimino atom. The chloride and acetate anions coordinate in monodentate manner respectively in complex 1 and in complex 2. In complex

show abstract

Section: [Insert Scheme 1]supporting

confidence: 58%

Metal transition complexes of tridentate Schiff base ligands derived from 2-hydrazinopyridine: synthesis, spectroscopic characterization and X-ray structures

et al. 2019

View full text Add to dashboard Cite

show abstract

“…EPR spectrum of the polycrystalline complex Cu(3-Mesal) 2 (pnia) 2 measured at room temperature is shown in Figure 4. (Puchoňová, 2018;Puchoňová, 2015). (Sieron, 2007).…”

Section: Apparatus and Physical Measurementmentioning

confidence: 99%

“…In previous studies, copper(II) complexes with nicotinamide (nia) derivatives have been examinated for many reasons e.g. their biological aspects (antiinfl ammatory, antibacterial, SOD mimetic activities) and of course for their magnetic or structural properties (Zvimba, 2007;Puchoňová, 2018;Shiekl, 2018). Information concerning the complex structure is important for understanding the interaction between molecules in a solution as well as in pure substance solid state and moreover in cocrystal formation.…”

Section: Introductionmentioning

confidence: 99%

“…Possible structural motif of the prepared complex and its purity were studied by elemental analysis (EA), powder diffraction analysis (XRPD), electronic absorption spectra (UV/Vis), infrared spectra (IR) and Electron Paramagnetic Resonance spectroscopy (EPR). Coordination variability of the studied com poud Cu(3-Mesal) 2 (pnia) 2 was compared with that of previously published (Puchoňová, 2018;Puchoňová, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bis(3-methylsalicylato)bis(picolinamide)copper(II) complex — preparation, spectral properties and supposed structure

Matejová

Puchoňová

Hrindová

et al. 2019

Acta Chimica Slovaca

Self Cite

View full text Add to dashboard Cite

Blue methylsalicylatocopper(II) complex with picolinamide Cu(3-Mesal)2(pnia)2 has been prepared and characterized by elemental analysis and spectral methods. Based on the infrared spectra, monodentate coordination of 3-methylsalicylate anion has been assumed and the coordination variability of the anion has been shown. By determination and refinement of the unit cell from powder diffraction data, the existence of a monomeric Cu(II) complex can be anticipated. EPR spectrum of the complex is in good agreement with these results. The g-factors fulfil the relation g|| > g┴ > 2.0023, which is consistent with the dx2 – y2 ground electronic state and indicates coordination sphere of distorted tetragonal symmetry {CuN2O2O2´} for the central copper(II) ions.

show abstract

“…The combination of a linear amine and a heterocyclic ring via an azomethine moiety can lead to complexes having biological activity. Copper complex with Schiff base ligands has also been investigated as effective scavengers of superoxide radicals, acting as antioxidants [22,23]. Extensive studies have been carried out on the transition metal complexes with imidazolebased Schiff bases, but there is no reported copper complex with the N,N-dimethyl-N'-((5-methyl-1H-imidazol-4-yl)methylene)ethane-1,2-diamine (C9H16N4).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, spectroscopic studies and X-ray structure determination of two mononuclear copper complexes derived from the Schiff base ligand N,N-dimethyl-N'-((5-methyl-1H-imidazol-4-yl)methylene)ethane-1,2-diamine

Haba

Tamboura

et al. 2019

Eur J Chem

View full text Add to dashboard Cite

Reactions of the Schiff base N,N-dimethyl-N'-((5-methyl-1H-imidazol-4-yl)methylene) ethane-1,2-diamine (HL), synthesised in situ, with chloride or thiocyanate copper (II) salt; afforded two new mononuclear complexes, [Cu(HL)Cl2]·H2O (1) and [Cu(HL)(SCN)2] (2). These compounds have been studied and characterized by elemental analysis, IR and UV-Vis spectroscopies, electrochemistry, molar conductivity and room temperature magnetic measurements. Single crystal X-ray structure determination of the complexes revealed the presence of neutral moieties in the asymmetric unit. The mononuclear (1) crystallises in the monoclinic space group P21/c with the following unit cell parameters a = 7.4355(3) Å, b = 7.2952(3) Å, c = 26.2729(11) Å, β = 93.461(4)°, V = 1422.52(10) Å3, Z = 4, R1 = 0.033 and wR2 = 0.082 and the mononuclear complex (2) crystallises in the monoclinic space group C2/c with the following unit cell parameters a = 26.2578(7) Å, b = 7.4334(2) Å, c = 16.6237(5) Å, β = 99.089(3)°, V = 3203.95(16) Å3, Z = 8, R1 = 0.037 and wR2 = 0.104. In both complexes the ligand acts in tridentate fashion and the coordination environment of the copper atom can be described as distorted square pyramidal. The crystal lattice of the complex 1 is stabilized by electrostatic forces of attraction and O–H···Cl, C–H···O, N–H···Cl, and C–H···Cl, hydrogen bonding interactions while the crystal lattice of the complex 2 is stabilized by N–H···S and C–H···N.

show abstract

Two versatile salicylatocopper(II) complexes: Structure, spectral, magnetic, electrochemical properties and SOD mimetic activity

Cited by 14 publications

References 56 publications

Metal transition complexes of tridentate Schiff base ligands derived from 2-hydrazinopyridine: synthesis, spectroscopic characterization and X-ray structures

Metal transition complexes of tridentate Schiff base ligands derived from 2-hydrazinopyridine: synthesis, spectroscopic characterization and X-ray structures

Bis(3-methylsalicylato)bis(picolinamide)copper(II) complex — preparation, spectral properties and supposed structure

Synthesis, spectroscopic studies and X-ray structure determination of two mononuclear copper complexes derived from the Schiff base ligand N,N-dimethyl-N'-((5-methyl-1H-imidazol-4-yl)methylene)ethane-1,2-diamine

Contact Info

Product

Resources

About