Li7Pb2: enthalpy of formation

3 accepted literature formation-enthalpy value(s) (DFT 3).

Systems: Li–Pb

Literature values

Enthalpy of formation of Li7Pb2 reported in the literature (3)
ValuePhase as printedT (K)ClassMethodSystemSourceLocationQuote
-35.14 kJ/mol-atom ± 2.11Li7Pb2298.15DFTLi–Pb[1] Zhou 2016
cites Seith 1937		Table 2, p. 2, row 3
report
-33.48 kJ/mol-atom ± 0.5Li7Pb2298.15DFTLi–Pb[1] Zhou 2016
cites Kalyanaraman 1982		Table 2, p. 2, row 4
report
-31.03 kJ/mol-atomLi7Pb20DFTfirst-principles calculationsLi–Pb[1] Zhou 2016Table 2, p. 2, row 5
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.

Uncertainty budget of the literature values of Li7Pb2
ValueUnitPrintedReadingMethod (class, basis)CompositionScatterConversionEffective
-35.14kJ/mol-atom2.110.0058.395 (dft, calibrated)8.395
-33.48kJ/mol-atom0.50.0058.395 (dft, calibrated)8.395
-31.03kJ/mol-atom0.0058.395 (dft, calibrated)8.395

Sources

  1. Chenyang Zhou, Cuiping Guo, Changrong Li, Zhenmin Du, Thermodynamic optimization of the Li–Pb system aided by first-principles calculations, Journal of Nuclear Materials 477, 95-101 (2016). doi:10.1016/j.jnucmat.2016.04.061