Abstract
To establish the composition of the gentamicin complex (GNMC) of copper(II) in the polymer matrix of an ion-selective membrane (ISM), we investigated spectra of the ISM upon both incorporation of the GNMC and its complex with copper(II) by the IR spectrometry method. A number of spectral changes were revealed: the appearance and disappearance of some absorption bands and batho- and hypsochromic shifts accompanied by the substantial rearrangement of the bands’ intensities. The observed effects are indicative of the change of the distribution of the charge within the molecule, the formation of new bonds, and rotational transformation in the formation of a chelate cycle. This confirms not only the presence of a complex in the polymer matrix but also that its structure is identical to the one found in solution before.
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Original Russian Text © T.G. Dzherayan, I.V. Bykov, M.V. Kostitsyna, E.V. Shipulo, O.M. Petrukhin, A.A. Dunaeva, E.V. Vladimirova, 2010, published in Zhurnal Analiticheskoi Khimii, 2010, Vol. 65, No. 7, pp. 743–748.
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Dzherayan, T.G., Bykov, I.V., Kostitsyna, M.V. et al. Study of a gentamicin-selective membrane polymer matrix by infrared spectroscopy. J Anal Chem 65, 726–731 (2010). https://doi.org/10.1134/S1061934810070117
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DOI: https://doi.org/10.1134/S1061934810070117