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http://dspace1.univ-tlemcen.dz/handle/112/1881| Titre: | Spectrophotometric Study of Cobalt (II) Chlorocomplexes in Methanol in the Visible Domain |
| Auteur(s): | BOULEFRED, Soumia CHIBOUB-FELLAH, Abdelghani CHIBOUB-FELLAH, Fatema Zohra AHMED KHAN, Mustayeen |
| Mots-clés: | Cobalt(II) Chlorocomplexes Spectrophotometry Stability Constant βJ Structural Modifications OH → TD |
| Date de publication: | 2011 |
| Résumé: | Cobalt(II) chlorocomplexes were studied in a polar protic solvent namely methanol at 25°C. The spectrophotometric technique in the visible region was used. The studied equilibrium is: Co2+ + j Cl- CoClj ↔ (j-2)-. Formation of three chlorocomplexes and a structural modification (Oh → Td) were obtained from recorded spectra analysis. The stability of CoCl+ was studied by the graphical method of Kruh and the overall stability constants were calculated with the SIRKO program based on the least-square method. Different models were tested and the model was retained for which the best values are: log β1 = 0.92, log β2 = 1.31 and log β3 = 1.08. |
| Description: | ADVANCES IN INNOVATIVE MATERIALS AND APPLICATIONS, DOI: 10.4028/www.scientific.net/AMR.324.170, Volume :324, pp. 170-173, 2011. |
| URI/URL: | http://dspace.univ-tlemcen.dz/handle/112/1881 |
| Collection(s) : | Articles internationaux |
Fichier(s) constituant ce document :
| Fichier | Description | Taille | Format | |
|---|---|---|---|---|
| Spectrophotometric-Study-of-Cobalt-II.pdf | 99,05 kB | Adobe PDF | Voir/Ouvrir |
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