RU  |  EN

ISSN  1684-792X

Issue 46


UDK: 539.196


GAFUROV Malik Magomedovich,
RABADANOV Kamil Shakhrievich,
ATAEV Mansur Badavievich,
KIRILLOV Svyatoslav Aleksandrovich

The processes of solvation of cations in the lithium perchlorate–dimethyl sulfoxide system have been studied on the basis of the Raman spectrum data. To make a conclusion about solvation process, time correlation functions of the solvent molecule vibrational relaxation were calculated and consequently oscillation modulation times τω were found. The latter helped determine the times of molecule interaction with cations. Changes in dephasing parameters and oscillation modulation of dimethyl sulfoxide show that solvate complexes in ionic solutions are less stable than the H-bonded (CH3)2SO molecule associates.

Keywords: спектры комбинационного рассеяния; колебательная дефазировка; временная корреляционная функция; диметилсульфоксид; Raman spectra; vibrational dephasing; time correlation function; dimethyl sulfoxide.

Pages: 35 - 39

Date: 10.03.2012


  • Formation of contact ion pairs and solvation of Li+ ion in sulfones: Phase diagrams, conductivity, Raman spectra, and dynamics / D.O. Tretyakov, V.D. Prisiazhnyi, M.M. Gafurov, K.Sh. Rabadanov, S.A. Kirillov // J. Chem. Eng. Data. 2010. Vol. 55. P. 1958–1964.
  • Фазовая диаграмма и строение растворов системы нитрат лития – диметилсульфон / М.Б. Атаев, М.М. Гафуров, М.Г. Какагасанов, С.А. Кириллов, В.Д. Присяжный, К.Ш. Рабаданов, Д.О. Третьяков // Доп. НАН України. 2010. Вып. 4. С. 134–139.
  • Сольватация ионов в системе LiClO4-(CH3)2SO2 / Д.О. Третьяков, В.Д. Присяжный, М.М. Гафуров, К.Ш. Рабаданов, М.И. Горобец, С.А. Кириллов // Вісн. Харківськ. нац. унів. 2010. № 895. Хімія. Вип. 18(41). С. 114–119,
  • Фазовые равновесия, ионная ассоциация и механизмы сольватации в системе LiN(CF3SO2)2–(CH3)2SO2 / М.М. Гафуров, К.Ш. Рабаданов, В.Д. Присяжный, Д.О. Третьяков, М.И. Горобец, С.А. Кириллов, М.Б. Атаев, М.Г. Какагасанов // Журн. физ. хим. 2011. № 85 (9). С. 1615–1620.
  • Xu K. Nonaqueous Liquid electrolytes for lithium-based rechargeable batteries // Chem. Rev. 2004. N 104. P. 4303–4418.
  • Rothschild W.G. Dynamics of molecular liquids. New York: Wiley, 1984.
  • Wang C.H. Spectroscopy of condensed media. Dynamics of molecular interactions. Orlando: Academic, 1985.
  • Oxtoby D.W. Dephasing of molecular vibrations in liquids // Adv. Chem. Phys. 1979. Vol. 40. P. 1–48.
  • Kubo R.A. Stochastic theory of line-shape and relaxation // G. ter Haar (Ed.), Fluctuations, relaxation and resonance in magnetic systems, Scottish Universities’ Summer School 1961. Edinburgh: Oliver and Boyd, 1962. P. 23–68.
  • Kirillov S.A. Time-correlation functions from band-shape fits without fourier transform // Chem. Phys. Lett. 1999. Vol. 303. N 1–2. P. 37–42.
  • Kirillov S.A. Spectroscopy of interparticle interactions in ionic and molecular liquids: novel approaches // Pure Appl. Chem. 2004. Vol. 76. N 1. P. 171–182.
  • Forel M.T., Tranquil M. Spectres de vibration du diméthylsulfoxide et du diméthylsulfoxide-d6 // Spectrochim. Acta. 1970. Vol. A26. P. 1023–1034.
  • Alia J.M., Edwards H.G.M., Lawson E.E. Preferential solvation and ionic association in lithium and silver trifluoromethanesulfonate solutions in acrylonitrile/dimethylsulfoxide mixed solvent. A Raman spectroscopic study // Vibr. Spectr. 2004. Vol. 34. N 2. P. 187–197.
  • Kloss A.A. and Fawcett W.R. ATR-FTIR studies of ionic solvation and ion-pairing in dimethyl sulfoxide solutions of the alkali metal nitrates // J. Chem. Soc., Faraday Trans. 1998. Vol. 94(11). P. 1587–1591.

Back to Table of Contents