Abstract
The complexing of protonated chitosan with dodecyl sulfate ions in water solutions is studied using IR spectroscopy data and quantum-chemical calculations. It is established that the electrostatic interaction between the protonated amino groups of chitosan and dodecyl sulfate ions is apparent in the IR spectrum as a band at 833 cm−1. The need to consider the effect the solvent has on the formation of hydrogen-bound ion pairs [CTS+ ⋅ C12H25O -3 ] is shown via a quantum-chemical simulation of the equilibrium geometry and the energy characteristics of complexing and hydration.
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Original Russian Text © S.V. Shilova, K.A. Romanova, Yu.G. Galyametdinov, A.Ya. Tret’yakova, V.P. Barabanov, 2016, published in Zhurnal Fizicheskoi Khimii, 2016, Vol. 90, No. 6, pp. 885–889.
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Shilova, S.V., Romanova, K.A., Galyametdinov, Y.G. et al. Characteristics of the complexing of chitosan with sodium dodecyl sulfate, according to IR spectroscopy data and quantum-chemical calculations. Russ. J. Phys. Chem. 90, 1181–1184 (2016). https://doi.org/10.1134/S003602441606025X
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DOI: https://doi.org/10.1134/S003602441606025X