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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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Kubicki, Maciej
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024In vitro anticancer, antioxidant, antimicrobial, antileishmanial, enzymes inhibition and in vivo anti-inflammatory activities of organotin(IV) derivatives of 4-bromophenoxyacetic acidcitations
- 2024Self-assembly of simple Schiff base ligand into unique saddle-type [4x4] tetranuclear architecture and its application as selective voltammetric dopamine sensor in aqueous conditionscitations
- 2023New N4-Donor Ligands as Supramolecular Guests for DNA and RNA: Synthesis, Structural Characterization, In Silico, Spectrophotometric and Antimicrobial Studiescitations
- 2021Electropolymerization of [2 × 2] grid-type cobalt(II) complex with thiophene substituted dihydrazone ligandcitations
- 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
- 2019Solid-state supramolecular architectures of a series of Hg(II) halide coordination compounds based on hydroxyl-substituted Schiff base ligandscitations
- 2018Coordination properties of N,N′-bis(5-methylsalicylidene)-2-hydroxy-1,3-propanediamine with d- and f-electron ions: crystal structure, stability in solution, spectroscopic and spectroelectrochemical studiescitations
- 2018Co(III), V(IV) and Cu(II) complexes of bidentate N,O-donor Schiff base ligands: Characterization, anticancer activities and metal oxide nanoparticles preparation via solid state thermal decompositioncitations
- 2018Synthesis, X-ray crystallography, thermogravimetric analysis and spectroscopic characterization of isostructural one-dimensional coordination polymers as sorbents for some anionscitations
- 2018Recurrent supramolecular motifs in discrete complexes and coordination polymers based on mercury halides: prevalence of chelate ring stacking and substituent effectscitations
- 2017A mechanistic study on unexpected and solvent-based pH-tuneable role of benzylic pendant side-arm on N2O2-donor naphthodiaza-crown macrocyclic ligand as a sensitive fluorogenic chemosensor for Al3+ in aqueous solutioncitations
- 2017Dipyrromethane functionalized monomers as precursors of electrochromic polymerscitations
- 2017The spectroscopic studies of new polymeric complexes of silver(I) and original mononuclear complexes of lanthanides(III) with benzimidazole-based hydrazonecitations
- 2016Utilization of a new gold/Schiff-base iron(iii) complex composite as a highly sensitive voltammetric sensor for determination of epinephrine in the presence of ascorbic acidcitations
- 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
- 2015Supramolecular polymer of Schiff base gadolinium complex: Synthesis, crystal structure and spectroscopic propertiescitations
- 2013New complexes of cobalt(II) ions with pyridinecarboxylic acid N-oxides and 4,4′-bypcitations
- 2013Mono-, di- and trinuclear complexes of bis(terpyridine) ligand: Synthesis, crystal structures and magnetic propertiescitations
- 2012Synthesis, complexation studies and structural characterization of d and f metal ion complexes with 4-chloroquinaldinic acid N-oxidecitations
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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>