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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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Żamojć, Krzysztof
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Publications (2/2 displayed)
- 2015Physicochemical properties of ternary oxovanadium(IV) complexes with oxydiacetate and 1,10-phenanthroline or 2,2'-bipyridine: cytoprotective activity in hippocampal neuronal HT22 cellscitations
- 2012Thermal properties of potassium bis(oxalato)diaquochromates(III) in solid state. Trans-cis isomerization of the [Cr2O4)2(OH2)2</SUB>]- complex ion in aqueous solutionscitations
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article
Thermal properties of potassium bis(oxalato)diaquochromates(III) in solid state. Trans-cis isomerization of the [Cr2O4)2(OH2)2</SUB>]- complex ion in aqueous solutions
Abstract
The thermal decomposition of trans- K[Cr(C2O4)2(OH2)2]ჼ003H2O and cis-K[Cr(C2O4)2(OH2)2] has been studied using the TG–MS technique. The mea- surements were carried out in an argon atmosphere over the temperature range of 293–873 K. The influence of the complex structures and configurational geometry on the stability of the transition products and the pathways of thermal transformations has been discussed. Further- more, the kinetics of the isomerization reactions of the [Cr(C2O4)2(OH2)2]- complex ion catalyzed by five dif- ferent metal ions: Be2?, Mg2?, Ca2?, Sr2? and Ba2? have been studied. The isomerization reactions were studied in aqueous solution at five various temperatures (283–303 K), at constant concentration of metal ions (C = 0.1 M) and the constant ionic strength of solution (Na?, NO3-) I = 2.4 M. The rates of the isomerization reaction were determined spectrophotometrically by monitoring of absor- bance changes at 410 nm.