Dielectric Relaxation Studies of Trihalogenated Esters in Different Solvents at Microwave Frequency

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概要

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• The dielectric permittivity ε′ and dielectric loss ε″ have been measured at 9.83 GHz for the solutions of four trihalogenated esters in six non-polar solvents having wide range of viscosities at 35 °C. The static permittivity ε<SUB>0</SUB> at 1 MHz and high frequency limiting permittivity ε<SUB>∞</SUB>=<I>n</I><SUB>D</SUB><SUP>2</SUP> have also been measured at 35 °C. The normalized plots of logτ <I>vs.</I> logη for these esters are linear for non-interacting solvents only. The anomalous behaviour of these solutes in other solvents has been explained in terms of solute-solvent interactions. The distribution parameter α, the free energies of activation <I>ΔF</I><SUB>τ</SUB>, <I>ΔF</I><SUB>η</SUB> and the dipole moment μ of these esters have also been reported.

著者

• Vyas A.

  Microwave Laboratory, Department of Physics, University of Jodhpur

• Purohit H.

  Microwave Laboratory, University of Jodhpur

• Sharma H.

  Microwave Laboratory, University of Jodhpur

• Purohit H.

  Microwave Laboratory, Department of Physics, University of Jodhpur

• Sharma H.

  Microwave Laboratory, Department of Physics, University of Jodhpur

関連論文

• Dielectric Relaxation Studies of Trihalogenated Esters in Different Solvents at Microwave Frequency
• Dielectric Dispersion and Relaxation Mechanism in Some Trifluoro Compounds at Microwave Frequencies

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