Anthracene photodimer

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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
Δfsolid73.2kcal/molCcbBender and Farber, 1952 
Quantity Value Units Method Reference Comment
Δcsolid-3389.8kcal/molCcbBender and Farber, 1952Corresponding Δfsolid = 73.2 kcal/mol (simple calculation by NIST; no Washburn corrections)
Δcsolid-3386.4kcal/molCcbSwietoslawski and Starczewska, 1928Heat of combustion corrected for constant pressure; Corresponding Δfsolid = 69.8 kcal/mol (simple calculation by NIST; no Washburn corrections)

Reaction 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

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Individual Reactions

Anthracene photodimer = 2Anthracene

By formula: C28H20 = 2C14H10

Quantity Value Units Method Reference Comment
Δr-16.0kcal/molCmBendig, Buchwitz, et al., 1981liquid phase; solvent: Cyclohexane; Dimerization, see Bendig and Kreysig, 1981
Δr6.9 ± 1.5kcal/molCmDonati, Guarini, et al., 1981solid phase

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.

Bender and Farber, 1952
Bender, P.; Farber, J., The heats of combustion of anthracene transannular peroxide and dianthracene, J. Am. Chem. Soc., 1952, 74, 1450-1452. [all data]

Swietoslawski and Starczewska, 1928
Swietoslawski, W.; Starczewska, H., Influence of certain corrections on the results of measurements of the heat of combustion of organic substances, Bull. Int. Acad. Pol. Sci. Lett. Cl. Med., 1928, 85-97. [all data]

Bendig, Buchwitz, et al., 1981
Bendig, J.; Buchwitz, W.; Fischer, J.; Kreysig, D., Deactivation behavior of arenes and heteroarenes. XXXII. Effect of endo- and exocyclic substitution on the reversible dimerization behavior of anthracenes, J. Prakt. Chem., 1981, 323, 485-498. [all data]

Bendig and Kreysig, 1981
Bendig, J.; Kreysig, D., Deactivation behavior of arenes and heteroarenes. XXXI. A model of the reversible photodimerization of anthracene and 9-methylanthracene, J. Prakt. Chem., 1981, 323, 471-484. [all data]

Donati, Guarini, et al., 1981
Donati, D.; Guarini, G.G.T.; Sarti-Fantoni, P., Evaluation of the enthalpic change during the monomerization reaction of crystalline anthracene photodimer (AD), Mol. Cryst. Liq. Cryst., 1981, 69, 241-243. [all data]


Notes

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