2,4,6-Trimethylbenzonitrile, N-oxide

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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
Δfgas137.0 ± 4.0kJ/molCcbAcree, Simirsky, et al., 1992 
Δfgas133.4 ± 4.0kJ/molCcbAcree, Tucker, et al., 1991 

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
Δfsolid49.3 ± 3.5kJ/molCcbAcree, Simirsky, et al., 1992ALS
Δfsolid55.9 ± 1.5kJ/molCcbAcree, Tucker, et al., 1991ALS
Quantity Value Units Method Reference Comment
Δcsolid-5556.5 ± 2.5kJ/molCcbAcree, Simirsky, et al., 1992ALS
Δcsolid-5563.1 ± 0.8kJ/molCcbAcree, Tucker, et al., 1991ALS
Quantity Value Units Method Reference Comment
solid,1 bar265.08J/mol*KN/AAcree, Sevruk, et al., 1993DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
236.10298.15Acree, Sevruk, et al., 1993T = 6 to 319 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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δsub87.8 ± 1.8kJ/molVAcree, Simirsky, et al., 1992ALS
Δsub77.5 ± 3.7kJ/molVAcree, Tucker, et al., 1991ALS

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.080224.3crystaline, IIcrystaline, IAcree, Sevruk, et al., 1993DH
87.800298.15crystaline, I Acree, Sevruk, et al., 1993p = 0.109 Pa.; DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.35224.3crystaline, IIcrystaline, IAcree, Sevruk, et al., 1993DH
265.08298.15crystaline, I Acree, Sevruk, et al., 1993p; DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes

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

Acree, Simirsky, et al., 1992
Acree, W.E., Jr.; Simirsky, V.V.; Kozyro, A.A.; Krasulin, A.P.; Kabo, G.J.; Frenkel, M.L., Thermodynamic properties of organic compounds. 2. Combustion and sublimation enthalpies of 2,4,6-trimethylbenzonitrile N-oxide, J. Chem. Eng. Data, 1992, 37, 131-133. [all data]

Acree, Tucker, et al., 1991
Acree, W.E., Jr.; Tucker, S.A.; Zvaigzne, A.I.; Meng-Yan, Y.; Pilcher, G.; Ribeiro Da Silva, M.D.M., Enthalpies of combustion of 2,4,6-trimethylbenzonitrile, 2,4,6-trimethylbenzonitrile N-oxide,, 2,6-dimethylbenzonitrile, 2,4,6-trimethoxybenzonitrile, and 2,4,6-trimethoxybenzonitrile N-oxide: the dissociation enthalpies of the (N-O) bonds, J. Chem. Thermodyn., 1991, 23, 31-36. [all data]

Acree, Sevruk, et al., 1993
Acree, W.E., Jr.; Sevruk, V.M.; Kozyro, A.A.; Krasulin, A.P.; Kabo, G.J.; Frenkel, M.L., Thermodynamic properties of organic compounds. 3. Sublimation enthalpy and heat capacities of 2,4,6-trimethylbenzonitrile N-oxide, J. Chem. Eng. Data, 1993, 38(1), 101-104. [all data]


Notes

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