Infrared optical constants, molar absorption coefficients, dielectric constants, molar polarisabilities, transition moments and dipole moment derivatives of liquid N,N-dimethylformamide–carbon tetrachloride mixtures

Mid-infrared spectra of the N,N-dimethylformamide–carbon tetrachloride system by transmission and single- and multiple-reflection ATR technique in the whole composition range (0 < xDMF ≤ 1), recorded at room temperature between 5000 and 840 cm−1, are presented. The complex optical constant, molar absorption coefficient, complex dielectric constant and complex molar polarisability spectra are determined. The wavenumber × imaginary molar polarisability spectra were fitted to the classical damped oscillator model, which gives intensities, vibrational transition moments, and dipole moment derivatives with respect to normal coordinates of the vibrations.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide