0000000000413388

AUTHOR

Martin Breza

showing 8 related works from this author

A five-coordinate manganese(iii) complex of a salen type ligand with a positive axial anisotropy parameter D.

2017

A new high-spin d4 roughly trigonal–bipyramidal (TBP) manganese(III) complex with a salen type ligand (H2L), namely MnL(NCS)·0.4H2O, has been synthesised and characterised by elemental analysis, ESI mass spectrometry, IR and UV-vis spectroscopy, and spectroelectrochemistry. X-ray diffraction analysis revealed an axial compression of the approximate TBP. Temperature dependent magnetic susceptibility and variable-temperature variable-field (VTVH) magnetisation measurements, as well as high-frequency and -field EPR (HFEPR) spectroscopy, were used to accurately describe the magnetic properties of this complex and, in particular, determine the spin Hamiltonian parameters: g-values and the zero-f…

Absorption spectroscopy010405 organic chemistryAnalytical chemistrychemistry.chemical_elementManganese010402 general chemistry01 natural sciencesMagnetic susceptibilitySpectral line0104 chemical scienceslaw.inventionInorganic ChemistryMagnetizationchemistrylawPhysical chemistryElectron paramagnetic resonanceAnisotropySpectroscopyDalton transactions (Cambridge, England : 2003)
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Copper(II) complexes with 1,5-bis(2-hydroxybenzaldehyde)carbohydrazone

2014

Abstract The acid–base properties of 1,5-bis(2-hydroxybenzaldehyde)carbohydrazone (H4L) and its thioanalogue 1,5-bis(2-hydroxybenzaldehyde)thiocarbohydrazone (H4LS) have been studied experimentally by pH-potentiometry and UV–Vis spectrophotometry and theoretically by using DFT methods. Copper(II) complexes [Cu2(HL)(DMSO)2(H2O)]NO3·H2O (1), [{Cu2(HL)(DMF)(H2O)}n][{Cu2(HL)(DMF)NO3}n](NO3)n (2), [Cu2(HL)(DMF)2(H2O)]HSO4·H2O (3), [Cu2(HL)(DMF)2(H2O)][Cu2(HL)(SO4)(H2O)(DMF)2]·2H2O (4) and [Cu4(HL)2(HSO4)(DMF)2]HSO4 (5), where H4L = 1,5-bis(2-hydroxybenzaldehyde)carbohydrazone, have been synthesised. Complexes 1–3 have been characterised by elemental analysis, IR spectroscopy, ESI mass spectromet…

Schiff basemedicine.diagnostic_testLigandStereochemistryInfrared spectroscopychemistry.chemical_elementMagnetic susceptibilityCopperInorganic Chemistrychemistry.chemical_compoundCrystallographyDeprotonationchemistrySpectrophotometryMaterials ChemistrymedicinePhysical and Theoretical ChemistryCyclic voltammetryPolyhedron
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CCDC 978467: Experimental Crystal Structure Determination

2014

Related Article: Diana Dragancea, Sergiu Shova, Eva A. Enyedy, Martin Breza, Peter Rapta, Luca M. Carrella, Eva Rentschler, Anatolie Dobrov, Vladimir B. Arion|2014|Polyhedron|80|180|doi:10.1016/j.poly.2014.03.039

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[(mu~2~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-(nitrato)-(NN-dimethylformamide)-di-copper(ii) (mu~2~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-(aqua)-(NN-dimethylformamide)-di-copper(ii) nitrate monohydrate]Experimental 3D Coordinates
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CCDC 978468: Experimental Crystal Structure Determination

2014

Related Article: Diana Dragancea, Sergiu Shova, Eva A. Enyedy, Martin Breza, Peter Rapta, Luca M. Carrella, Eva Rentschler, Anatolie Dobrov, Vladimir B. Arion|2014|Polyhedron|80|180|doi:10.1016/j.poly.2014.03.039

Space GroupCrystallographyCrystal System(mu~2~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-aqua-bis(NN-dimethylformamide)-di-copper(ii) hydrogen sulfate monohydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 978469: Experimental Crystal Structure Determination

2014

Related Article: Diana Dragancea, Sergiu Shova, Eva A. Enyedy, Martin Breza, Peter Rapta, Luca M. Carrella, Eva Rentschler, Anatolie Dobrov, Vladimir B. Arion|2014|Polyhedron|80|180|doi:10.1016/j.poly.2014.03.039

Space GroupCrystallography(mu~2~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-aqua-bis(NN-dimethylformamide)-di-copper(ii) (mu~2~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-sulfato-aqua-bis(NN-dimethylformamide)-di-copper(ii) dihydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 978470: Experimental Crystal Structure Determination

2014

Related Article: Diana Dragancea, Sergiu Shova, Eva A. Enyedy, Martin Breza, Peter Rapta, Luca M. Carrella, Eva Rentschler, Anatolie Dobrov, Vladimir B. Arion|2014|Polyhedron|80|180|doi:10.1016/j.poly.2014.03.039

Space GroupCrystallographybis(mu~4~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-bis(mu~3~-2-(2-oxidobenzylidene)-N-((2-oxidophenyl)methylidene)hydrazinecarbohydrazonato)-bis(mu~2~-hydrogen sulfato)-tetrakis(dimethylformamide)-octa-copper(ii) bis(hydrogen sulfate)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1515780: Experimental Crystal Structure Determination

2017

Related Article: Sergiu Shova, Angelica Vlad, Maria Cazacu, J. Krzystek, Lukas Bucinsky, Martin Breza, Denisa Darvasiová, Peter Rapta, Joan Cano, Joshua Telser, Vladimir B. Arion|2017|Dalton Trans.|46|11817|doi:10.1039/C7DT01809F

Space GroupCrystallographyCrystal System(22'-{(1133-tetramethyldisiloxane-13-diyl)bis[(propane-31-diyl)(azanylylidene)methylylidene]}bis(46-di-t-butylphenolato))-(isothiocyanato)-manganese(iii) hydrateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 978466: Experimental Crystal Structure Determination

2014

Related Article: Diana Dragancea, Sergiu Shova, Eva A. Enyedy, Martin Breza, Peter Rapta, Luca M. Carrella, Eva Rentschler, Anatolie Dobrov, Vladimir B. Arion|2014|Polyhedron|80|180|doi:10.1016/j.poly.2014.03.039

Space GroupCrystallography(mu~2~-22'-(carbonylbis(hydrazin-2-yl-1-ylidenemethylylidene))diphenolato)-aqua-bis(dimethyl sulfoxide)-di-copper(ii) nitrate monohydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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