Extended rotational diffusion and dielectric relaxation in liquid solutions
β Scribed by Yuri P. Kalmykov; James McConnell
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 904 KB
- Volume
- 193
- Category
- Article
- ISSN
- 0378-4371
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β¦ Synopsis
The complex dielectric permittivity for a dilute solution of polar molecules dissolved in a nonpolar solvent is calculated in the context of a generalized J-diffusion model. This model takes into account both inertial effects and finite duration of collisions. The theory is compared with experimental far-infrared absorption spectra of HCl and DC1 in nonpolar solvents.
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Rcccived 17 f\pril 1984 \lolecular reorientation in the presence of internal rotation is investigated and an analytical espression for the spin-rotational rate of a nucleus attached to the internal rotor is obtained in terms of the internal angular-momentum correlation rime. -4 model of n symmetric-
Dielectric relaxation studies have been made on eight rigid polar solutes in a-terphenyl solution at four temperatures between 328 and 343 K in the frequencyrange 1 to6GHz. The relaxation times and activation parameters may be.reasonably, interpreted in terms of the molecular reorientation of indivi