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<strong>Dielectric relaxation of benzonitrile and tetramethyl urea with N, methylformamide in C6H6 under 9.885 GHz electric field</strong>

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Title Statement <strong>Dielectric relaxation of benzonitrile and tetramethyl urea with N, methylformamide in C6H6 under 9.885 GHz electric field</strong>
 
Added Entry - Uncontrolled Name Sit, Swapan Kumar; Dr. Meghnad Saha Institute of Technology, Haldia, West Bengal
Gupta, Bhaskar ; Jadavpur University, Kolkata, West Bengal
SAHOO, SWAGATADEB ; National Institute of Technology -Jamshedpur
 
Uncontrolled Index Term 77.22.Gm; 72.80. Le ; 77.22.d
Dielectric relaxation; Dipole moment; Binary mixture; Dimer
 
Summary, etc. Dielectric relaxation of binary (<em>jk</em>) polar mixtures of benzonitrile and tetramethyl urea (TMU) with N,methylformamide (NMF) dissolved in benzene (<em>i</em>) for different weight fractions <em>w</em><sub>jk</sub>’s of polar solutes and mole function <em>x</em><sub>j</sub>’s of NMF at 25, 30, 35 and 40 °C have been studied in terms of relaxation time τ<sub>jk</sub> and dipole moment µ<sub>jk </sub>from conductivity measurement of solution under 9.885 GHz electric field using Debye Model. Solute-solvent and solute-solute association have been predicted from plot of τ<sub>jk </sub>and µ<sub>jk</sub> against <em>x</em><sub>j</sub>’s of NMF up to <em>x</em><sub>j</sub>=0.5 and beyond <em>x</em><sub>j</sub>=0.5 to <em>x</em><sub>j</sub>= 1.0, respectively. Estimated τ and µ from both the proposed methods agree with the reported values. Theoretically µ’s have been calculated from bond angles and bond moments of polar groups due to existence of inductive, mesmeric and electromeric effect arising out of microscopic inhomogeneity in them. Molecular dynamics of polar mixtures have been ascertained from Eyring rate equation to establish Debye relaxation mechanism for all systems.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2018-09-17 10:40:25
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/17762
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 56, ##issue.no## 9 (2018): Indian Journal of Pure & Applied Physics
 
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