The effect of solvent-solute interaction on vibrational spectra of benzilidene (o-dimethylhydrogenosiloxy) aniline was studied in a number of solvents. The spectral vibrational frequency shifts observed in different solvents have been correlated with refractive indexes and dielectric constants of the solvents. The results obtained were applied to the Buckingham's modification of the Bauer-Magat formula for solute-solvent interaction. Generally, infrared spectral frequencies of Si-O bands in solution phase shifted to lower wavenumber than those observed in gas phase, except in nitrobenzene which is attributed to specific interaction. The calibration lines between Delta v/v vs epsilon-1/2 epsilon+1 were made to determine the specific and non specific solute-solvent interactions. Results obtained from these calibration lines are also discussed in terms of solute-solvent interactions.
M JAVED ,M I ZIA ,M MAZHAR ,M IKRAM ,S ALI ,
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