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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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Louka, Febee R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Dinuclear doubly bridged phenoxido copper(II) complexes as efficient anticancer agentscitations
- 2023Structure and magnetic characterization of some bicompartmental [N6O2] divalent metal(ii) complexes using bis(phenolato) ligands bearing two pendant bis(pyridyl) amine arms
- 2023Magnetostructural Properties of Some Doubly-Bridged Phenoxido Copper(II) Complexescitations
- 2023Copper(II) and zinc(II) complexes bridged by benzenoid aromatic oxocarbon and dicarboxylate dianionscitations
- 2021Identification of potent anticancer copper(ii) complexes containing tripodal bis[2-ethyl-di(3,5-dialkyl-1H-pyrazol-1-yl)]amine moietycitations
- 2020Polynuclear and coordination polymers of copper(II) complexes assembled by flexible polyamines and bridging rigid N-heterocyclic multicarboxylatescitations
- 2015Five-coordinate metal(II) complexes based pyrazolyl ligands.citations
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article
Structure and magnetic characterization of some bicompartmental [N6O2] divalent metal(ii) complexes using bis(phenolato) ligands bearing two pendant bis(pyridyl) amine arms
Abstract
<p>Reactions of the bicompartmental bis(phenolato) compound 6,6′-methylenebis(2-((bis(pyridin-2-ylmethyl)amino)methyl)-4-chlorophenol)hemihydrate (H<sub>2</sub>L ½H<sub>2</sub>O) with 3d metal(ii) ions afforded novel fully structurally characterized bridged acetato dinuclear complexes [Mn<sub>2</sub>(HL)(μ<sub>1,2</sub>-OAc)<sub>2</sub>]PF<sub>6</sub> (1) [Zn<sub>2</sub>(HL)(μ<sub>1,2</sub>-OAc)(H<sub>2</sub>O)<sub>0.75</sub>(MeOH)<sub>0.25</sub>](PF<sub>6</sub>)<sub>2</sub>·0.45(H<sub>2</sub>O) (5) and [Cd<sub>2</sub>(HL)(μ<sub>1,1,2</sub>-OAc)(OAc)(H<sub>2</sub>O)]PF<sub>6</sub>·H<sub>2</sub>O (6) as well as the polymeric bridged-azido tetranuclear catena-[Cu<sub>4</sub>(HL)<sub>2</sub>(μ<sub>1,1</sub>-N<sub>3</sub>)<sub>2</sub>(μ<sub>1,3</sub>-N<sub>3</sub>)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub>·5H<sub>2</sub>O (4). The complex [Cu<sub>4</sub>(HL)<sub>2</sub>(ClO<sub>4</sub>)<sub>3</sub>(H<sub>2</sub>O)<sub>5</sub>](ClO<sub>4</sub>)<sub>3</sub>·5H<sub>2</sub>O (2) was partially characterized. In addition, three more dinuclear complexes [Cu<sub>2</sub>(H<sub>2</sub>L)(NO<sub>3</sub>)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub> (3), [Cu<sub>2</sub>(HL)(OAc)(CH<sub>3</sub>OH)](PF<sub>6</sub>)<sub>2</sub> (7) and [Cu<sub>2</sub>(HL)(NCS)<sub>2</sub>]NO<sub>3</sub>·2H<sub>2</sub>O (8) were also isolated. All complexes were characterized by CHN elemental analysis, IR and UV-Vis spectroscopy, ESI-MS, conductivity measurements and X-ray single crystal crystallography for compounds 1, 4, 5 and 6, where the bis(phenolato) ligand displayed different deprotonation (H<sub>2</sub>L, HL<sup>−</sup> and L<sup>2−</sup>). The magnetic susceptibility measurements over the temperature range 2-300 K revealed very weak antiferromagnetic coupling in dimanganese(ii) 1 (J = −1.64(1) cm<sup>−1</sup>) and almost negligible magnetic interaction in dicopper(ii) 2 (J = 0(3) cm<sup>−1</sup>). In the azido catena-[Cu<sub>4</sub>(HL)<sub>2</sub>(μ<sub>1,1</sub>-N<sub>3</sub>)<sub>2</sub>(μ<sub>1,3</sub>-N<sub>3</sub>)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub>·5H<sub>2</sub>O (4) complex, the J value of −133(3) cm<sup>−1</sup> was obtained upon moderate-to-strong antiferromagnetic coupling through the di-μ<sub>1,3</sub>-N<sub>3</sub>-bridged dicopper(ii) unit with no magnetic interaction between the two copper(ii) ions in the di-μ<sub>1,1</sub>-N<sub>3</sub>-bridged unit.</p>