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

Abstract:

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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.

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Periodical:

Edited by:

Maher Soueidan, Mohamad Roumié and Pierre Masri

Pages:

170-173

DOI:

10.4028/www.scientific.net/AMR.324.170

Citation:

S. Boulefred et al., "Spectrophotometric Study of Cobalt (II) Chlorocomplexes in Methanol in the Visible Domain", Advanced Materials Research, Vol. 324, pp. 170-173, 2011

Online since:

August 2011

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$35.00

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