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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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Van Meervelt, Luc
KU Leuven
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2020Synthesis, structure and <i>in vitro</i> cytotoxicity testing of some 2-aroylbenzofuran-3-olscitations
- 2014High current density electrodeposition of silver from silver-containing liquid metal salts with pyridine-N-oxide ligandscitations
- 2012Crystal structures of low-melting ionic transition-metal complexes with N-alkylimidazole ligandscitations
- 2010Cobalt(II) complexes of nitrile-functionalized ionic liquidscitations
- 2009Pyrrolidinium Ionic Liquid Crystalscitations
- 2004Lanthanide(III) nitrobenzenesulfonates as new nitration catalysts: The role of the metal and of the counterion in the catalytic efficiencycitations
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article
Crystal structures of low-melting ionic transition-metal complexes with N-alkylimidazole ligands
Abstract
<p>A series of ionic liquids with copper(ii), nickel(ii) or cobalt(ii)-containing cations have been synthesised and characterised, where possible with single crystal X-ray diffraction. A number of N-methylimidazole (MeIm), N-ethylimidazole (EtIm), N-butylimidazole (BuIm) or N-hexylimidazole (HeIm) ligands are coordinated to the metal centres and bis(trifluoromethyl) sulfonyl imide (Tf <sub>2</sub>N) anions provide the charge balance. Two types of metal complexes have been analysed. One has the general formula [Cu(AlkIm) <sub>4</sub>][Tf <sub>2</sub>N] <sub>2</sub> (AlkIm = MeIm, EtIm, BuIm and HeIm) and contains square planar copper(ii) centres with longer interactions to oxygen atoms of bis(trifluoromethylsulfonyl)imide anions. The other type of metal complex has a metal:ligand ratio of 1:6, with composition [M(MeIm) <sub>6</sub>][Tf <sub>2</sub>N] <sub>2</sub> (M = Cu, Ni, Co) and contains octahedral metal centres. The ionic liquids have low melting points and the change in melting points is discussed as a function of alkyl chain length on the imidazole ligand and as a function of the metal centre. The metal-ligand interactions and intermolecular interactions in the crystal structures are analysed and related to the properties of the metal complexes.</p>