Orientational and dielectric behaviour of N, N-dimethylformamide in different non-polar solvents
Dielectric behaviour of concentrated solutions of different mole fractions of N, N-dimethylformamide in various non-polar solvents has been studied using precision LCR meter with four terminal liquid dielectric test fixture over a frequency range 20 Hz to 2 MHz at 303.15 K temperature. The dielectric parameters namely dielectric constant (ε′), dielectric loss (ε″) and static dielectric constant (ε0) have been determined by capacitive measurement method. The limiting dielectric constant (ε∞) has been determined by Abbe’s refractometer for the same solutions at 303.15 K temperature. Kirkwood correlation factor geff has also been calculated using determined values of ε0 and ε∞,to gain information about the orientational behaviour of N, N-dimethylformamide in different non-polar solvent environments.
Dielectric constant; Dielectric loss; Kirkwood correlation factor
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