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Spectrophotometric Study of Cobalt (II) Chlorocomplexes in Methanol in the Visible Domain

Abstract : 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: Co 2+ + j Cl - CoCl j ↔ (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.
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https://hal.univ-angers.fr/hal-03253575
Contributeur : Mustayeen Khan <>
Soumis le : mardi 8 juin 2021 - 13:02:03
Dernière modification le : mardi 15 juin 2021 - 14:24:00

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Soumia Boulefred, Abdelghani Chiboub-Fellah, Fatema Zohra Chiboub-Fellah, Mustayeen Ahmed Khan. Spectrophotometric Study of Cobalt (II) Chlorocomplexes in Methanol in the Visible Domain. Advanced Materials Research, Trans Tech Publications, 2011, 324, pp.170-173. ⟨10.4028/www.scientific.net/AMR.324.170⟩. ⟨hal-03253575⟩

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