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Diadamantane

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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus524.KN/AClark, McKervey, et al., 1974Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Tfus523.KN/ACarson, Laye, et al., 1971Uncertainty assigned by TRC = 3. K; TRC
Quantity Value Units Method Reference Comment
Ttriple517.92KN/ASpinella, Andrews, et al., 1978Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC
Quantity Value Units Method Reference Comment
Deltasub95.94kJ/molVClark, Knox, et al., 1979Gas flow technique for Hs, see Clark, Knox, et al., 1975 AND Carson, Laye, et al., 1971, 2; ALS
Deltasub96.0kJ/molN/AClark, Knox, et al., 1979DRB

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
96.0 ± 0.8319.TSGCClark, Knox, et al., 1975, 2Based on data from 305. - 333. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
8.66517.9Domalski and Hearing, 1996AC

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
4.445407.22crystaline, IIIcrystaline, IISpinella, Andrews, et al., 1978, 2DH
8.960440.43crystaline, IIcrystaline, ISpinella, Andrews, et al., 1978, 2DH
8.646517.92crystaline, IliquidSpinella, Andrews, et al., 1978, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
10.92407.22crystaline, IIIcrystaline, IISpinella, Andrews, et al., 1978, 2DH
20.34440.43crystaline, IIcrystaline, ISpinella, Andrews, et al., 1978, 2DH
16.69517.92crystaline, IliquidSpinella, Andrews, et al., 1978, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


References

Go To: Top, Phase change data, Notes

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

Clark, McKervey, et al., 1974
Clark, Timothy; McKervey, M. Anthony; Mackle, Henry; Rooney, John J., Pre-melting transitions in caged hydrocarbons, a general theory of disorder in plastic crystals, J. Chem. Soc., Faraday Trans. 1, 1974, 70, 0, 1279, https://doi.org/10.1039/f19747001279 . [all data]

Carson, Laye, et al., 1971
Carson, A.S.; Laye, P.G.; Steele, W.V.; Johnston, D.E.; McKervey, M.A., The Enthalpy of Formation of Diamantane, J. Chem. Thermodyn., 1971, 3, 915. [all data]

Spinella, Andrews, et al., 1978
Spinella, G.M.; Andrews, J.T.S.; Bacon, W.E.; Fort, R.C.; Sabo, J., Diamantane:heat capacity(300 to 540 K) and thermodynamics of transition and fusion, J. Chem. Thermodyn., 1978, 10, 1023-32. [all data]

Clark, Knox, et al., 1979
Clark, T.; Knox, T.M.O.; McKervey, M.A.; Mackle, H.; Rooney, J.J., Thermochemistry of bridged-ring substances. Enthalpies of formation of some diamondoid hydrocarbons and of perhydroquinacene. Comparisons with data from empirical force field calculations, J. Am. Chem. Soc., 1979, 101, 2404-2410. [all data]

Clark, Knox, et al., 1975
Clark, T.; Knox, T.M.; Mackle, H.; McKervey, M.A.; Rooney, J.J., Calorimetric evaluation of enthalpies of formation of some bridged-ring hydrocarbons. Comparison with data from empirical force field calculations., J. Am. Chem. Soc., 1975, 97, 3835-3836. [all data]

Carson, Laye, et al., 1971, 2
Carson, A.S.; Laye, P.G.; Steele, W.V.; Johnson, D.E.; McKervey, M.A., The enthalpy of formation of diamantane, J. Chem. Thermodyn., 1971, 3, 915-918. [all data]

Clark, Knox, et al., 1975, 2
Clark, Timothy; Knox, Trevor; Mackle, Henry; McKervey, M. Anthony; Rooney, John J., Heats of sublimation of some cage hydrocarbons by a temperature scanning technique, J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 2107, https://doi.org/10.1039/f19757102107 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Spinella, Andrews, et al., 1978, 2
Spinella, G.M.; Andrews, J.T.S.; Bacon, W.E., Diamantane: heat capacity (300 to 540 K) and thermodynamics of transition and fusion, J. Chem. Thermodynam., 1978, 10, 1023-1032. [all data]


Notes

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