Phenanthrene, 4,5-dimethyl-

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

Quantity Value Units Method Reference Comment
Δfsolid21.3 ± 1.4kcal/molCcbFrisch, 1962see Frisch, Barker, et al., 1963
Quantity Value Units Method Reference Comment
Δcsolid-2004.3 ± 1.4kcal/molCcbFrisch, 1962see Frisch, Barker, et al., 1963; Corresponding Δfsolid = 21.26 kcal/mol (simple calculation by NIST; no Washburn corrections)

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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
20.5383.GSNass, Lenoir, et al., 1995Based on data from 313. to 453. K.

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.

Frisch, 1962
Frisch, M.A., A high precision calorimeter for ther measurement of small energy differences, Ph.D. Thesis for University of Wisconsin, 1962, 1-100. [all data]

Frisch, Barker, et al., 1963
Frisch, M.A.; Barker, C.; Margrave, J.L.; Newman, M.S., Strain energies in hydrocarbons from heats to combustion. I. 4,5-and 2,7-dimethylphenanthrenes, 1,12- and 5,8-benzo(c)phenanthrenes and 1',9- and 3',6-benzanthracenes, J. Am. Chem. Soc., 1963, 85, 2356-2357. [all data]

Nass, Lenoir, et al., 1995
Nass, Karen; Lenoir, Dieter; Kettrup, Antonius, Calculation of the Thermodynamic Properties of Polycyclic Aromatic Hydrocarbons by an Incremental Procedure, Angew. Chem. Int. Ed. Engl., 1995, 34, 16, 1735-1736, https://doi.org/10.1002/anie.199517351 . [all data]


Notes

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