engleski

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

Mid-infrared spectra of the DMA–carbon tetrachloride system by transmission and single- and multiple-reflection ATR technique in the whole composition range (0 < xDMA ≤1) were recorded at room temperature between 5000 and 850cm−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 vibrations.

N ; N-dimethylacetamide ; infrared spectroscopy ; liquid mixtures ; optical constants ; dielectric constants ; molar polarisability ; transition moment ; dipole moment derivative

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