Thermodynamic Study of Tellurium Polybromide Complexes

The pressure of saturated and unsaturated Br 2 vapors over (cation) 2 {[TeBr 6 ](Br 2 )} (cation = Me 4 N + , Et 4 N + ) solid polybromotellurates is measured via static tensimetry using membrane zero manometers in a wide range of temperatures. Experimental data are used to determine the thermal sta...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2024, Vol.98 (1), p.50-56
Main Authors: Zelenina, L. N., Chusova, T. P., Korobeinikov, N. A., Usol’tsev, A. N.
Format: Article
Language:English
Subjects:
Bismuth
Bromine compounds
Cations
Chemical bonds
Chemistry
Chemistry and Materials Science
Physical Chemistry
Tellurium
Thermal stability
Thermodynamics
Thermodynamics and Materials Science
Vaporization
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Summary:The pressure of saturated and unsaturated Br 2 vapors over (cation) 2 {[TeBr 6 ](Br 2 )} (cation = Me 4 N + , Et 4 N + ) solid polybromotellurates is measured via static tensimetry using membrane zero manometers in a wide range of temperatures. Experimental data are used to determine the thermal stability of these compounds ( T dec ). A physicochemical model of vaporization is proven, thermodynamic characteristics of the evaporation of bromine that bonds the moieties of polybromotellurate anions ( , , = f ( T )) are calculated, and the energies of bonding between [TeBr 6 ] octahedra and Br 2 ( ) are determined. Results are compared to others for bismuth polybromide complexes studied earlier.
ISSN:0036-0244
1531-863X
DOI:10.1134/S003602442401031X