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Trimethylamineborane and triethylamineborane: low-temperature thermodynamic properties.
Finke-HL; Todd-SS; Messerly-JF
J Chem Thermodynamics 1970 Jan; 2(1):129-138
The low-temperature thermal properties of trimethylamineborane and triethylamineborane were determined by adiabatic calorimetry over the range 12 to 390 K and 12 to 310 K, respectively. The quantities measured include the heat capacity of the condensed phases, enthalpies of transition, transition temperatures, enthalpies of fusion, and triple-point temperatures. The results were used to calculate the following thermodynamic functions at selected temperatures for the solid and liquid phases: (Gs - H0o)/T, (Hs - H0o)/T, Hs - H0o, Ss, and Cs. Third law entropies and Gibbs energies of formation in the ideal gas state at 298.15 K for both compounds were computed from the results together with vapor pressures and enthalpies of formation from the literature.
OP; Journal Article
Issue of Publication
The Journal of Chemical Thermodynamics