Critical assessment of thermodynamic properties of perovskite-type cesium lead chloride CsPbCl3

The results of thermochemical study of the CsPbCl3 formation thermodynamics available in literature were critically evaluated by comparison with those calculated from the temperature dependence of EMF of galvanic cells involving CsPbCl3 as well as with the newly obtained solution calorimetric data. The origin of the discrepancy between the values of standard formation enthalpy reported by different scientific groups was identified. Redetermined solution enthalpy of CsPbCl3 in dimethyl sulfoxide allowed correcting the earlier reported value of the standard formation enthalpy of CsPbCl3. As a result, the following consistent set of the thermodynamic functions for CsPbCl3 was obtained: Delta f H degrees(298) = (-810.3 +/- 0.4) kJ mol(-1), s 98 = (270.1 +/- 4.3) J mol(-1) K-1.

Automated summary

By critically evaluating and comparing the results of thermochemical study on the formation thermodynamics of CsPbCl3, the discrepancy in the reported standard formation enthalpy values was identified and corrected using newly obtained solution calorimetric data, resulting in a consistent set of thermodynamic functions for CsPbCl3.