RAMAN SPECTRAL STUDY OF MAGNESIUM SOLVENT INTERACTION IN ACETONE SOLUTION

Raman spectra have been used to investigate the cation-solvent interac tion in acetone solution of Mg(ClIO4)(2). Analysis of the bands of C=O and C-C valence vibrations of acetone and the totally symmetric vibra tion of ClO4- ion led to the identification of different magnesium-ace tone associations. The stability of the formed solvate species has bee n tested by adding NaSCN to solution. It is found that all bands arisi ng from the solvated acetone molecules to the Mg2+ ion are changed in the presence of NaSCN and the new bands, attributed to the other speci es, occur. Formation of the magnesium-isothiocyanato complexes in solu tion has been supported by the analysis of the symmetric stretching nu (1) (C-N) vibration of the SCN- ion.