La2Sb: enthalpy of formation
4 accepted literature formation-enthalpy value(s) (experimental 2, model 1, DFT 1).
Systems: La–Sb
Literature values
| Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote |
|---|---|---|---|---|---|---|---|---|
| -142.089 kJ/mol (basis unstated) | La2Sb | 298.15 | experimental | La–Sb | [1] Wang 2013 cites Goryacheva 1971 | Table 3, p. 3, row 3 report | ||
| -97.9 kJ/mol (basis unstated) | La2Sb | 298.15 | experimental | La–Sb | [1] Wang 2013 cites Borzone 1979 doi | Table 3, p. 3, row 2 report | ||
| -94 kJ/mol (basis unstated) | La2Sb | 0 | model | Miedema model | La–Sb | [1] Wang 2013 cites Colinet 1984 doi | Table 3, p. 3, row 4 report | |
| -88.09 kJ/mol (basis unstated) | La2Sb | 0 | DFT | first-principles | La–Sb | [1] Wang 2013 | Table 3, p. 3, row 1 report |
Uncertainty budget
Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.
| Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective |
|---|---|---|---|---|---|---|---|---|
| -142.089 | kJ/mol (basis unstated) | 5.000e-4 | 10.5 (unknown, calibrated) | 10.5 | ||||
| -97.9 | kJ/mol (basis unstated) | 5.000e-4 | 10.5 (unknown, calibrated) | 10.5 | ||||
| -94 | kJ/mol (basis unstated) | 5.000e-4 | 11.7 (model_calculated, calibrated) | 11.7 | ||||
| -88.09 | kJ/mol (basis unstated) | 5.000e-4 | 29.9 (dft, calibrated) | 29.9 |
Sources
- Jinsan Wang, Changrong Li, Cuiping Guo, Zhenmin Du, Xushan Zhao, Jianyun Shen, Thermodynamic assessment of the La–Sb and the Ho–Sb systems using the associate model, Thermochimica Acta 551, 104-109 (2013). doi:10.1016/j.tca.2012.10.026