Temperature dependent dielectric relaxation studies of halopropane from 10 Mhz to 50 Ghz using a time domain reflectometry (TDR)

Shinde, Ravindra V; Kumbharkhane, A C

Abstract

Temperature dependent dielectric relaxation study of halopropane (1-Chloropropane, 1-Bromopropane, 1-Iodopropane) have been carried out in the frequency 10 MHz to 50 GHz using Time domain reflectometry technique. The complex permittivity spectrum has been fitted with single Debye relaxation spectral function. Non-linear square fit method has been used to obtain dielectric parameters such as static dielectric constant (ε0), relaxation time (τ), Kirkwood Correlation factor  and thermodynamic parameters viz. Entropy and enthalpy. The observed properties of Kirkwood correlation (g)and thermodynamic parameters significantly confirm the intermolecular association and hydrogen bonding in halopropanes.

Keyword(s)

Halopropanes; Complex permittivity; Kirkwood Correlation factor; Time Domain Reflectometry; Thermodynamic parameters


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