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

Abstract

Mid-infrared spectra of the DMA–carbon tetrachloride system by transmission and single- and multiple-reflection ATR technique in the whole composition range (0 < x DMA ≤ 1), recorded at room temperature between 5000 and 850 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 classical damped oscillator model, which gives intensities, vibrational transition moments, and dipole moment derivatives with respect to normal coordinates of the corresponding vibrations.