Different Structural States of 4-Methylpyridine–Water Solutions: Experimental Study of the Adiabatic Compressibility at the Hypersonic Frequency
The behavior of the adiabatic compressibility BS with variation in the temperature t and the concentration x in the aqueous solution of a nonelectrolyte is experimentally studied from the fine structure of the spectra of light scattering. The sign inversion of the derivative of the adiabatic compressibility with respect to the concentration dBS(x)/dx and temperature dBS(t)/dt is observed. In the temperature-concentration phase diagram, the inversion points determine the lines of transition from the solution structure characterized by a nondisturbed continuous network of hydrogen bonds to the disturbed one, and, further, to the structure with fragmentary network.
L.M. Sabirov, D.I. Semenov, and Kh.S. Khaidarov, Opt. Spectrosc. 103, 490 (2007).
L.M. Sabirov, D.I. Semenov, and Kh.S. Khaidarov, Opt. Spectrosc. 105, 369 (2008).
M.I. Davis, G. Douheret, J.C.R. Reis, and M.J. Blandamer, Phys. Chem. Chem. Phys. 3, 4555 (2001).
O.V. Grineva, J. Struct. Chem. 48, 753 (2007).
S. Ernst and W. Marczak, Bull. Pol. Acad. Sci. Chem. 40, 307 (1992).
L. Wang, H. Ding, J. Zhao, Ch. Song, and J. Wang, J. Chem. Eng. Data. 54, 1000 (2009).
D.I. Semenov, Phys. Wave Phenom. 18, 155 (2010).
L.A. Bulavin, N.P. Malomuzh, and K.S. Shakun, Ukr. Phys. J. 47, 653 (2005).
L.A. Bulavin, A.I. Fisenko, and N.P. Malomuzh, Chem. Phys. Lett. 453, 183 (2008).