Abstract
MO LCAO calculations in the Hückel approximation of the tautomeric (azo enol, oxo azo, and hydrazo) forms of 3-phenylazopentane-2,4-dione (L) revealed that the oxo azo tautomer is most reactive. The effective charges at the atoms of all the tautomers were calculated. Complexation between some metals and L in aqueous ethanol was studied by potentiometric and conductometric titration. The potentiometric data were used to calculate the standard thermodynamic functions of the complexation.
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Original Russian Text © S.R. Gadzhieva, T.M. Mursalov, K.T. Makhmudov, F.M. Chyragov, 2006, published in Koordinatsionnaya Khimiya, 2006, Vol. 32, No. 4, pp. 316–320.
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Gadzhieva, S.R., Mursalov, T.M., Makhmudov, K.T. et al. Quantum-chemical calculations of the tautomeric forms of 3-phenylazopentane-2,4-dione and the thermodynamic parameters of complexation between its isomers and some metals in aqueous ethanol. Russ J Coord Chem 32, 304–308 (2006). https://doi.org/10.1134/S1070328406040129
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DOI: https://doi.org/10.1134/S1070328406040129