Vibrational relaxation study of C O stretching mode of liquid N , N -dimethylformamide: Comparative study with theoretical calculation

The study reports to the bandshape analysis of C O stretching band of liquid N , N -dimethylformamide using various polar and non-polar solvents. The changes in bandwidths and anisotropy shift have been explained for neat liquid as well as binary mixtures using different solvents. The vibrational relaxation rates were correlated with different solvent concentrations to understand interacting nature of molecules. Ab initio calculation is carried out to give a complete picture of the molecule and vibrational spectra. The calculated characteristics of DMF are in good agreement with experimental values, allowing them to be used in spectral and structural analysis.