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Kurzak, Krzysztof; Kuźniarska‐Biernacka, Iwona; Kurzak, Barbara; Jezierska, Julia

doi:10.1023/a:1011957312088

Cited by 11 publications

(21 citation statements)

References 21 publications

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“…This report is a continuation of our studies on interpretation of the electronic spectra of the copper(II) complexes with Schiff bases derived from salicylaldehyde and aromatic amines (Scheme 1) in variety of solvents [1][2][3][4]. It is known, that the variation of the size and nature of substituent of the salicylaldimine ligand can be responsible for changes in the coordination geometry around metal ion.…”

Section: Introductionmentioning

confidence: 75%

“…In general, the solution spectra at room temperature are not sufficiently resolved to allow consideration of these interactions. The matrix elements of the excited states given by Kurzak et al [1,4] for the orthorhombic d 9 system (C 2h symmetry) were used for these calculations. Coordinate system and numbering the ligators used for AOM calculations are the same as in the previous paper [4].…”

Section: Methods Of Calculationsmentioning

confidence: 99%

“…The matrix elements of the excited states given by Kurzak et al [1,4] for the orthorhombic d 9 system (C 2h symmetry) were used for these calculations. Coordinate system and numbering the ligators used for AOM calculations are the same as in the previous paper [4]. For the complex studied three AOM parameters (e r (O), e r (N), e p\ (N)) were fitted to four bands, which result from the Gaussian analysis.…”

Section: Methods Of Calculationsmentioning

confidence: 99%

“…1b) in UV region, together with their Gaussian analysis. On the basis of our previous studies [3] and the literature data cited above we assigned the band at ca. 26000 cm -1 to the MLCT Cu?O and the high-energy band to the MLCT Cu?N transition.…”

Section: Uv Spectra Of Ligand and Complexmentioning

confidence: 95%

“…Because the electronic absorption spectra of the complexes depend on these changes, it is sensible to calculate the ligand-field parameters. The coordination and solvent effects lead to significant changes in the d-d transitions and the ligand-field parameters of the complexes in solution [3,5].…”

Section: Introductionmentioning

confidence: 99%

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Spectrochemical properties and solvatochromism of bis(salicylidene-2-amino-3-methylpyridine)copper(II)

Kurzak

Kuźniarska‐Biernacka

2009

Struct Chem

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The title complex, denoted as [Cu(Msap) 2 ], is a deep brown solid soluble in common solvents like chloroform, toluene, benzene, dioxane, acetone, methanol, ethanol, 2-propanol, dimethylformamide, dimethyl sulfoxide, and acetonitrile that is a necessary condition for solvatochromism observation. The complex has been characterized by elemental analysis, molar conductivity, ultraviolet, and visible spectroscopy. The available X-ray data for similar compounds show that copper atom adopts planar coordination geometry. The molar conductivities indicate their non-electrolytic properties. The electronic spectra have been used to study the coordination properties of donor atoms and their bonding abilities, as well as solvatochromism. The results obtained show that the interactions of metal with donors depend on solvent polarity and the color changes are subtle.

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Section: Introductionmentioning

confidence: 75%

Section: Methods Of Calculationsmentioning

confidence: 99%

Section: Methods Of Calculationsmentioning

confidence: 99%

Section: Uv Spectra Of Ligand and Complexmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Spectrochemical properties and solvatochromism of bis(salicylidene-2-amino-3-methylpyridine)copper(II)

Kurzak

Kuźniarska‐Biernacka

2009

Struct Chem

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Anti‐Sporothrix Activity of Novel Copper‐Itraconazole Complexes

de Azevedo‐França,

Borba‐Santos,

de Matos

et al. 2024

ChemMedChem

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A series of new metal complexes, [Cu(ITZ)2Cl2]·5H2O (1), [Cu(NO3)2(ITZ)2] ·3H2O·C4H10O and [Cu(ITZ)2)(PPh3)2]NO3·5H2O (3) were synthesized by a reaction of itraconazole (ITZ) with the respective copper salts under reflux. The metal complexes were characterized by elemental analyses, molar conductivity, 1H and 13C{1H} nuclear magnetic resonance, UV‐Vis, infrared and EPR spectroscopies. The antifungal activity of these metal complexes was evaluated against the main sporotrichosis agents: Sporothrix brasiliensis, Sporothrix schenkii, and Sporothrix globosa. All three new compounds inhibited the growth of S. brasiliensis and S. schenckii at lower concentrations than the free azole, with complex 2 able to kill all species at 4 µM and induce more pronounced alterations in fungal cells. Complexes 2 and 3 exhibited higher selectivity and no mutagenic effect at the concentration that inhibited fungal growth and affected fungal cells. The strategy of coordinating itraconazole (ITZ) to copper was successful, since the corresponding metal complexes were more effective than the parent drug. Particularly, the promising antifungal activity of the Cu‐ITZ complexes makes them potential candidates for the development of an alternative drug to treat mycoses.

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Spectrochemical Properties and Solvatochromism of Tetradentate Schiff Base Complex with Nickel: Calculations and Experiments

Gonciarz¹,

Żuber²,

Zwoździak³

2018

ChemistryOpen

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The nickel(II) complex with a tetradentate Schiff base ligand obtained by condensation of 1,3‐propanediamine with salicylaldehyde (H2salpn) was studied in a variety of solvents at room temperature. The product, that is, the N′,N′′‐propylenebis(salicylaldiminato)nickel(II) ([Ni(salpn)]) complex, is brown in color in the solid state. The properties of the ligand and complex were characterized by elemental analysis, solubility in common solvents, molar conductivities, and ultraviolet (UV) and visible (Vis) spectroscopy. The [Ni(salpn)] complex is easily soluble in common solvents such as chloroform, methanol, ethanol, dimethyl formamide, dimethyl sulfoxide, acetonitrile, dioxane, acetone, 2‐propanol, and toluene—a necessary condition for observing solvatochromism. The molar conductivity values, equal to 0.0 S mol‐1 cm2 in these solvents, point to a typical non‐electrolyte behavior for this complex. Spectroscopic measurements were used to confirm the square‐planar geometry of the species in solution and to determine the coordination properties of the donor atoms and their bonding abilities (CFM/AOM parameters), as well as trichromaticity coordinate calculations. The results obtained show that the interactions of the metal with the donors depend on the polarity of the solvent.

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Untitled

Cited by 11 publications

References 21 publications

Spectrochemical properties and solvatochromism of bis(salicylidene-2-amino-3-methylpyridine)copper(II)

Spectrochemical properties and solvatochromism of bis(salicylidene-2-amino-3-methylpyridine)copper(II)

Anti‐Sporothrix Activity of Novel Copper‐Itraconazole Complexes

Spectrochemical Properties and Solvatochromism of Tetradentate Schiff Base Complex with Nickel: Calculations and Experiments

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