DL-Leucine

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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-640.70 ± 0.88kJ/molCcbHuffman, Fox, et al., 1937Author's hf298=-154.25 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-3578.3 ± 0.88kJ/molCcbHuffman, Fox, et al., 1937Author's hf298=-154.25 kcal/mol; ALS
Quantity Value Units Method Reference Comment
solid,1 bar207.1J/mol*KN/AHuffman and Ellis, 1937Extrapolation below 90 K, 58.20 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
194.30296.6Huffman and Ellis, 1937T = 86 to 297 K. Value is unsmoothed experimental datum.; DH

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Huffman, Fox, et al., 1937
Huffman, H.M.; Fox, S.W.; Ellis, E.L., Thermal data. VII. The heats of combustion of seven amino acids, J. Am. Chem. Soc., 1937, 59, 2144-21. [all data]

Huffman and Ellis, 1937
Huffman, H.M.; Ellis, E.L., Thermal data. VIII. The heat capacities, entropies and free energies of some amino acids, J. Am. Chem. Soc., 1937, 59, 2150-2152. [all data]


Notes

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