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Characteristics of Heteroassociates in the System Dimethylformamide-Water, According to Data of 1H NMR Relaxation, Refractometry, Densimetry, and Acoustic Spectroscopy

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Abstract

The dimethylformamide-water system was studied by proton spin-spin relaxation (296 K) and refractometry (298 K), and the results in combination with published densimetric data (293 K) and data on the sound velocities (293 K) were used to simulate the associative equilibria. A consistent scheme of heteroassociative equilibria in the dimethylformamide-water system was suggested. The compositions of the heteroassociates were determined, and their stability constants (in the mole fraction scale), relaxation efficiency coefficients, limiting refractive indices, limiting sound velocities, and limiting densities were calculated.

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Authors and Affiliations

  1. Kuban State University, Krasnodar, Russia

    I. V. Sukhno, V. Yu. Buz'ko, I. A. Kovaleva & V. T. Panyushkin

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  1. I. V. Sukhno
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  2. V. Yu. Buz'ko
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  3. I. A. Kovaleva
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  4. V. T. Panyushkin
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__________

Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 9, 2005, pp. 1435–1438.

Original Russian Text Copyright © 2005 by Sukhno, Buz'ko, Kovaleva, Panyushkin.

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Sukhno, I.V., Buz'ko, V.Y., Kovaleva, I.A. et al. Characteristics of Heteroassociates in the System Dimethylformamide-Water, According to Data of 1H NMR Relaxation, Refractometry, Densimetry, and Acoustic Spectroscopy. Russ J Gen Chem 75, 1363–1366 (2005). https://doi.org/10.1007/s11176-005-0428-2

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  • DOI: https://doi.org/10.1007/s11176-005-0428-2

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