| 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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Jastrząb, Renata
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Topics
Publications (7/7 displayed)
- 2019Preparation and characterization of long-term stable SERS active materials as potential supports for medical diagnosticcitations
- 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
- 2018Carboxyl groups of citric acid in the process of complex formation with bivalent and trivalent metal ions in biological systemscitations
- 2017PVDF membrane morphology - Influence of polymer molecularweight and preparation temperaturecitations
- 2017Applications of silver nanoparticles stabilized and/or immobilized by polymer matrixescitations
- 2015Supramolecular polymer of Schiff base gadolinium complex: Synthesis, crystal structure and spectroscopic propertiescitations
- 2013Potentiometric Study of Lanthanide Salicylaldimine Schiff Base Complexescitations
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article
Supramolecular polymer of Schiff base gadolinium complex: Synthesis, crystal structure and spectroscopic properties
Abstract
<p>Abstract The new gadolinium(III) nitrate complex [Gd(H<inf>2</inf>L)<inf>2</inf>(NO<inf>3</inf>)<inf>3</inf>(EtOH)]MeOH where H<inf>2</inf>L is N,N′-bis(5-methylsalicylidene)-4-methyl-1,3-phenylenediamine was obtained in template condensation reaction of 5-methylsalicylaldehyde with 4-methyl-1,3-phenylenediamine in presence of gadolinium(III) nitrate hexahydrate. The structure of the complex was determined by single-crystal X-ray diffraction analysis and by physicochemical methods. The central cation is nine-coordinated, and the coordination resembles distorted tricapped trigonal prism and only oxygen atoms are involved in coordination. In the crystal structure there is uncoordinated solvent - methanol molecule. The methanol molecule plays an important role in the crystal packing by hydrogen bonding and it connects the complex molecules into infinite chains. Electron paramagnetic resonance studies confirmed complex formation of gadolinium ion because internal coordination sphere of gadolinium was changed. The absorption and fluorescence properties of [Gd(H<inf>2</inf>L)<inf>2</inf>(NO<inf>3</inf>)<inf>3</inf>(EtOH)]MeOH were studied in different solvents: ethyl acetate, 1-propanol, methanol, ethanol and acetonitrile. Fluorescence quantum yields (Φ<inf>F</inf>) were calculated for the complex in all solvents and the values, of Φ<inf>F</inf> are rather low, the exact values depend on solvent, being between 0.0005 (in acetonitrile and ethyl acetate) and 0.0014 (in 1-propanol).</p>