INVESTIGATIONS OF INTERMOLECULAR INTERACTIONS BETWEEN 2-METHOXYETHANOL AND NITROBENZENE THROUGH DIELECTRIC RELAXATION STUDY
S.B. Sayyad ^a, P.B. Undre ^b, P. Yannewar ^c, S.S. Patil ^b, P.W. Khirade ^b, and S.C. Mehrotra ^c
a Milliya Arts, Science and Management Science College, Beed–431 122, India
^b Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabd–431 004, India
E-mail: prabhakarundre@yahoo.co.in
^c Department of Computer Science and IT, Dr. Babasaheb Ambedkar Marathwada University, Aurangabd–431 004, India

Received 30 July 2010; revised 6 December 2010; accepted 15 December 2010

Complex dielectric spectra $\varepsilon$*($\omega$) = ${\varepsilon}^{\prime}$ – i${\varepsilon}^{\prime\prime}$ ${}^{}$of binary mixture of 2-methoxyethanol with nitrobenzene were obtained in the frequency range of 10 MHz to 20 GHz over the volume fraction range 0 < $v$ < 1 and at different temperatures of 288, 298, 308, and 318 K using the time domain reflectometry (TDR) technique. The static dielectric constant ${\varepsilon}_{\mathrm{s}}$ and relaxation time $\tau$ have been obtained. These values are used to obtain the excess permittivity ${\varepsilon}_{\mathrm{s}}^{\mathrm{E}}$, excess inverse relaxation time $(1/\tau)^{\mathrm{E}}$, Kirkwood correlation factor $g^{\mathrm{eff}}$, Bruggeman factor f_B, and thermodynamic parameters. On the basis of above parameters, intermolecular interaction and dynamics of molecules at molecular level are predicated.

Keywords: dielectric relaxation, excess parameters, Kirkwood correlation factor, thermodynamic parameters, time domain reflectometry

TARPMOLEKULINIŲ 2-METOKSIETANOLIO IR NITROBENZENO SĄVEIKŲ TYRIMAS, MATUOJANT DIELEKTRINĘ RELAKSACIJĄ
S.B. Sayyad ^a, P.B. Undre ^b, P. Yannewar ^c, S.S. Patil ^b, P.W. Khirade ^b, S.C. Mehrotra ^c
Swami Ramanand Teerth Marathwada universitetas, Nandedas, Maharaštra, Indija

Dvinario 2-metoksietanolio ir nitrobenzeno mišinio kompleksiniai spektrai $\varepsilon$*($\omega$) = ${\varepsilon}^{\prime}$ – i${\varepsilon}^{\prime\prime}$ gauti 0 < $v$ < 1 tūrio daliai dažnių srityje nuo 10 MHz iki 20 GHz 288, 298, 308 ir 318 K temperatūroje, naudojant laikinę reflektometriją. Gautos statinė dielektrinė konstanta ${\varepsilon}_{\mathrm{s}}$ ir relaksacijos trukmė τ. Šios vertės naudojamos viršijančiajai skvarbai ${\varepsilon}_{\mathrm{s}}^{\mathrm{E}}$, viršijančiajai atvirkštinei relaksacijos trukmei $(1/\tau)^{\mathrm{E}}$, Kirkvudo koreliacijos koeficientui $g^{\mathrm{eff}}$, Brugemano koeficientui f_B ir termodinaminiams parametrams nustatyti. Remiantis gautais parametrais, molekuliniu lygmeniu aiškinama tarpmolekulinė sąveika ir molekulių dinamika.