Abstract
Raman spectroscopy was used to study the complexation in saturated ZnBr2(CdBr2)CH3CNH2O solutions at 25°C within the CN stretching region. Using the Fourier deconvolution procedure for spectral contours, the formation of the complex (CH3CN)Zn2+ in saturated and unsaturated (0.2 mole fraction CH3CN) solutions of the system ZnBr2CH3CNH2O was studied. The Fermi resonance interaction between 2253 and 2290 cm−1 determines opposite directions of the combination band shift for the two systems. The differences in complexation of Zn2+ and Cd2+ in the mixed solvent are discussed on the basis of the preferred cation solvation by the solvent molecules.
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