Relaxation dynamics in molecular alloys. I. Annealed (C2F6)1−x(CClF3)x mixtures
- 1 February 1991
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 94 (3) , 2143-2148
- https://doi.org/10.1063/1.459885
Abstract
Solid solutions of (C2F6)1−x(CClF3)x were investigated using dielectric spectroscopy. In part I of this work results on thermally equilibrated (C2F6)1−x(CClF3)x alloys are presented. The molar polarizability of liquid and plastic C2F6 was determined. The phase diagram of (C2F6)1−x(CClF3)x was studied in detail. It exhibits two eutectic points and a large miscibility gap. In a high‐temperature orientationally disordered phase mixed crystals can be grown up to CClF3 concentrations x≊0.5; in the low‐temperature ordered state solid solutions are stable for x≤0.25. The dielectric loss spectra indicate that in (C2F6)1−x(CClF3)x different relaxation channels are available for the CClF3 dipoles.Keywords
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