A5023629382- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Crystal structures of chemical compounds
- Synthesis and biological activity
- Synthesis and Characterization of Heterocyclic Compounds
- Chemical Reaction Mechanisms
- Crystallography and molecular interactions
- Lanthanide and Transition Metal Complexes
- Computational Drug Discovery Methods
- Click Chemistry and Applications
- Organometallic Compounds Synthesis and Characterization
- Free Radicals and Antioxidants
- Metal-Catalyzed Oxygenation Mechanisms
- Phenothiazines and Benzothiazines Synthesis and Activities
- Synthesis of Organic Compounds
- Synthesis and Biological Evaluation
- Photosynthetic Processes and Mechanisms
- Chemical Thermodynamics and Molecular Structure
- Oxidative Organic Chemistry Reactions
- Chemical Reactions and Mechanisms
- Molecular spectroscopy and chirality
- Inorganic and Organometallic Chemistry
- Ferrocene Chemistry and Applications
University of Belgrade
2015-2024
University of Belgrade – Faculty of Chemistry
2023-2024
Two new Zn(II) complexes with tridentate hydrazone-based ligands (condensation products of 2-acetylthiazole) were synthesized and characterized by infrared (IR) nuclear magnetic resonance (NMR) spectroscopy single crystal X-ray diffraction methods. The 1, 2 recently [ZnL3(NCS)2] (L3 = (E)-N,N,N-trimethyl-2-oxo-2-(2-(1-(pyridin-2-yl)ethylidene)hydrazinyl)ethan-1-aminium) complex 3 tested as potential catalysts for the ketone-amine-alkyne (KA2) coupling reaction. gas-phase geometry...
In this paper, Cu(II), Mn(II) and Zn(II) complexes with N,N,N-trimethyl-2-oxo-2-(2-(1-(thiazol-2-yl)ethylidene)hydrazinyl)ethan-1-aminium chloride (HL1Cl) were synthesized characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis DFT calculations. all three complexes, a ligand (L1) is coordinated in deprotonated formally neutral zwitterionic form via NNO donor set atoms. Cu(II) mononuclear penta-coordinated [CuL1(N3)(CH3OH)]BF4 [ZnL1(N3)2], respectively, while...
Two Zn(II) complexes with the condensation product of 2-quinolinecarboxaldehyde and trimethylammonium acetohydrazide chloride (Girard's T reagent) (HLCl) monodentate pseudohalides (azide cyanate) have been synthesized characterized by elemental analysis, IR NMR spectroscopy, single-crystal X-ray diffraction. In both complexes, coordination surroundings ions consist a deprotonated hydrazone ligand coordinated through an NNO set donor atoms two (N3– or NCO–) at remaining sites. The showed low...
Magnetic anisotropy in pentagonal bipyramidal complexes of Co(II) (1 and 2), Fe(III) (3 4), Ni(II) (5) with a 2,2′-[2,6-pyridinediylbis(ethylidyne-1-hydrazinyl-2-ylidene)]bis[N,N,N-trimethyl-2-oxoethanaminium] equatorial ligand isothiocyanato axial ligands has been investigated by magnetic susceptibility measurements, powder X-band electron paramagnetic resonance (EPR) spectroscopy, Mössbauer ab initio, ligand-field density functional theory (LFDFT) calculations. The studied display three...
Pentagonal-bipyramidal isothiocyanato Co(II) and Ni(II) complexes with condensation product of 2,6-diacetylpyridine trimethylammoniumacetohydrazide (Girard's T reagent) were synthesized characterized by elemental analyses, IR UV–vis spectra, molar conductivity, magnetic susceptibility. Crystal structures the also determined. Antimicrobial activities ligand metal examined.
In solid-state coordination chemistry, the number of a metal center is not always unambiguously determined, as sometimes from geometrical parameters it clear if ligands are directly bound to central ion or they belong outer sphere complex. The nature bonding between Cu(II) and weakly coordinated anions BF4–, NO3–, ClO4– investigated by combined crystallographic computational study. It shown that synergy crystal structure determination chemistry allows identification all interactions present...
Abstract Two new Zn(II) complexes bearing tridentate hydrazone‐based ligands with NNO or NNS donor atoms were synthesised and characterised by elemental analysis, infrared (IR) nuclear magnetic resonance (NMR) spectroscopies, single crystal X‐ray diffraction methods. These complexes, together four previously analogues, having hydrazone a set of atoms, successfully employed as catalysts in the ketone‐amine‐alkyne (KA 2 ) coupling reaction, furnishing tetrasubstituted propargylamines,...
Square-planar isocyanate and chloride Ni(II) complexes with tridentate PNO condensation product of 2-(diphenylphosphino)benzaldehyde Girard's T reagent have been synthesized their crystal structures were determined. These different monodentate ligands, chloride, cyanate, thiocyanate tested for antimicrobial activities against pathogenic microorganisms. The ligand active not only laboratory control strains bacteria yeast, but also on clinical isolates Escherichia coli Pseudomonas aeruginosa...
Isothiocyanate complexes of Zn(II) and Cd(II) with the condensation product 2,6-diacetylpyridine trimethylammoniumacetohydrazide (Girard's T reagent) were synthesized, characterized, their antimicrobial activities evaluated. The structures determined by elemental analysis, IR, NMR spectroscopy. crystal structure complex was also determined. Quantum-chemical calculations geometry total energy isomers 2,6-diacetylpyridine-bis(trimethylammoniumacetohydrazone) performed in vacuum methanol...
AbstractComplexes of Pd(II) and Co(III) with the condensation derivative 2-(diphenylphosphino)benzaldehyde Girard T reagent were synthesized, characterized, their antimicrobial activities evaluated. The ligand complexes characterized by elemental analysis, IR NMR spectroscopies, X-ray crystallography. In both complexes, deprotonated was coordinated to metal through phosphorus, imine nitrogen, carbonyl oxygen atoms. octahedral complex, two molecules ligands ion, while square-planar...