| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hnatejko, Zbigniew
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023LuminescentHybrid BPA.DA-NVP@Eu2L3Materials: In Situ Synthesis, Spectroscopic, Thermal, andMechanical Characterization
- 2019Complexation behavior of 6,6″-dimethyl-2,2′:6′,2″-terpyridine ligand with Co(II), Au(III), Ag(I), Zn(II) and Cd(II) ions: Synthesis, spectroscopic characterization and unusual structural motifscitations
- 2018Carboxyl groups of citric acid in the process of complex formation with bivalent and trivalent metal ions in biological systemscitations
- 2017The spectroscopic studies of new polymeric complexes of silver(I) and original mononuclear complexes of lanthanides(III) with benzimidazole-based hydrazonecitations
- 2015Two types of lanthanide Schiff base complexes: Synthesis, structure and spectroscopic studiescitations
- 2015Different supramolecular architectures in self-assembled praseodymium(III) and europium(III) complexes with rare coordination pattern of salicylaldimine ligandcitations
- 2013New complexes of cobalt(II) ions with pyridinecarboxylic acid N-oxides and 4,4′-bypcitations
- 2012Synthesis, complexation studies and structural characterization of d and f metal ion complexes with 4-chloroquinaldinic acid N-oxidecitations
- 2011Synthesis, spectroscopic and structural properties of uranyl complexes based on bipyridine N-oxide ligandscitations
- 2002Luminescence studies of Eu(III) mixed ligand complexescitations
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article
New complexes of cobalt(II) ions with pyridinecarboxylic acid N-oxides and 4,4′-byp
Abstract
<p>This paper reports a study concerning the isolation and characterization of mixed ligand complexes of the Co(II) ions with pyridinecarboxylic acids N-oxides (picolinic (PNO), nicotinic (NNO) and isonicotinic (INO)), [Co(PNO)<sub>2</sub>(4,4′-byp)]·6H<sub>2</sub>O 1, [Co(NNO)(4,4′-byp)NO<sub>3</sub>]·8H<sub>2</sub>O 2 and [Co(INO)(4,4′-byp)NO<sub>3</sub>]·7H<sub>2</sub>O 3; (4,4′-byp = 4,4′-bipyridine). The complexes 2 and 3 were prepared by the hydrothermal synthesis. The structures of the complexes were elucidated on the basis of elemental analysis, thermal decomposition, IR and mass spectroscopy. IR spectra show that N-oxides act as bidentate ligands, in which both the N-oxide and the carboxylate groups are involved in coordination. In 2 and 3 the Co(II) ion exists in the same coordination environment. For 1, the X-ray crystal structure has been determined and it turned out that it contains the coordination polymers, created by the chains of Co ions joined by 4,4′-byp ligands. The Co(II) ion occupies the center of symmetry in the space group C2/c. This ion is coordinated by two nitrogen atoms (from two 4,4′-byp ligands) and four oxygen atoms from two PNO anions. The extensive network of hydrogen bonds involving six different water molecules connects the one-dimensional polymers into three-dimensional crystal structure. © 2012 Elsevier B.V. All rights reserved.</p>