Dielectric Study of Dipolar Association in Dihalogenobenzenes |
| M. Dutkiewicz Institute of Physics, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland |
| Received: June 22, 1992 |
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| The nonlinear dielectric effect (NDE) has been studied in o-bromochlorobenzene and m-bromochlorobenzene, and their solutions in benzene. On the basis of NDE results and the values of electric permittivity ε, density d, and refractive index n obtained in this work, the molar polarizabilities: linear ⟨μ2⟩ and nonlinear ⟨μ4⟩ were calculated. Assuming dipolar association of the investigated dihalogenobenzenes molecules to be restricted to dimerization, the Gibbs energy ΔG0dim of the dimerization process as a function of the Onsager field factor f(ε) is determined, which allowed us to draw a conclusion on the structure of associates. |
| DOI: 10.12693/APhysPolA.82.443 PACS numbers: 35.20.My, 61.25.Em, 82.60.Hc |