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Vol. 31 No. 2 (2019): Vol. 31 No. 2

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Investigation of Temperature Dependent Dielectric Relaxation Studies of 4-Bromoacetanilide in Dilute Solution of Carbon Tetrachloride

https://doi.org/10.14233/ajchem.2019.21724
Chitra Manro
Department of Physics, IIS University (Deemed to be University), Mansarovar, Jaipur-302020, India
Ritu Jain
Department of Physics, IIS University (Deemed to be University), Mansarovar, Jaipur-302020, India

Corresponding Author(s) : Chitra Manro

manrochitra@gmail.com

Asian Journal of Chemistry, Vol. 31 No. 2 (2019): Vol. 31 No. 2

Abstract

The changes in dielectric parameters of 4-bromoacetanilide in dilute solution of carbon tetrachloride with temperature variation are studied at a fixed frequency of 9.27 GHz. The investigation are being done for five different mole fractions of 4-bromoacetanilide in the microwave region. The values of dielectric constant (ε′) and dielectric loss (ε′′) are determined by using Heston et al. method. Permittivity at a static frequency (εo) and at an optical frequency (ε∞) is calculated with the help of dipole meter and Abbe’s refractometer, respectively. Higasi’s method is used to calculate the values of relaxation times (τ1, τ2 and τ0). From these values, it is found that the relaxation time decreases systematically with the increase in temperature. The fall of τ2 with the increase in temperature has been observed to be more remarkable in comparison to the value of τ1. It indicates that the rate of falls of the relaxation time related to intramolecular rotation with temperature is faster as compared to the internal group rotation.

Keywords

4-Bromoacetanilide Dielectric parameters Relaxation time
Manro, C., & Jain, R. (2018). Investigation of Temperature Dependent Dielectric Relaxation Studies of 4-Bromoacetanilide in Dilute Solution of Carbon Tetrachloride. Asian Journal of Chemistry, 31(2), 463–468. https://doi.org/10.14233/ajchem.2019.21724
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