2,4,6,8-Tetrathiatricyclo[3.3.1.1(3,7)]decane, 1,3,5,7-tetramethyl-

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Gas 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-37. ± 5.0kJ/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol

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
Δfsolid-154. ± 3.kJ/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Δcsolid-8477. ± 3.kJ/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Quantity Value Units Method Reference Comment
solid,1 bar300.83J/mol*KN/AChang and Westrum, 1962DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
295.85298.15Chang and Westrum, 1962T = 5 to 350 K.; DH

Phase change 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
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Δsub117. ± 4.2kJ/molVHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Δsub117.0kJ/molN/AHeath, Hefter, et al., 1978DRB
Δsub117.1 ± 4.1kJ/molTEHeath, Hefter, et al., 1978AC

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.

Heath, Hefter, et al., 1978
Heath, G.A.; Hefter, G.T.; Steele, W.V., The standard enthalpy of formation of 1,3,5,7-tetramethyl-2,4,6,8-tetrathiaadamatane, J. Chem. Thermodyn., 1978, 10, 395-401. [all data]

Chang and Westrum, 1962
Chang, S.-S.; Westrum, E.F., Jr., Heat capacities and thermodynamic properties of globular molecules. III. Two methyl-substituted polythiaadamantanes, Ber. Bunsenges. Phys. Chem., 1962, 66, 524-527. [all data]


Notes

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