A comparative dielectric relaxation study between hydrogen-and non-hydrogen-bonded liquids: Nitriles vs alcohols
S N Helambe M P Lokhande A C Kumbharkhane S C Mehrotra
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Dielectric properties of nitriles have been studied using time domain reflectometry in the frequency range of 10 MHz to 10 GHz over the temperature range of 0°C to 45°C. The calculated dielectric relaxation parameters are compared with values for the corresponding n-alcohols. The dielectric behaviour in n-nitrile systems is quite different from the corresponding behaviour in n-alcohols. The dipoles in n-nitrile systems show a tendency to remain antiparallel, unlike in alcohol systems. The activation energy decreases with the increase of molecular size, whereas in hydrogen bonded liquid it increases.
S N Helambe1 M P Lokhande1 A C Kumbharkhane1 S C Mehrotra1
Volume 97, 2023
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