1,3,5-Triazine, 2,4,6-trimethoxy-

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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-70.1kcal/molSemiStewart, 2004 
Δfgas-92.71 ± 0.36kcal/molCcrImamura, Takahashi, et al., 1989ALS

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-114.3 ± 0.29kcal/molCcrImamura, Takahashi, et al., 1989ALS
Δfsolid-114.4 ± 0.21kcal/molCcrJohnson and Prosen, 1985ALS
Quantity Value Units Method Reference Comment
Δcsolid-757.42 ± 0.20kcal/molCcrImamura, Takahashi, et al., 1989ALS
Δcsolid-757.34 ± 0.20kcal/molCcrJohnson and Prosen, 1985ALS

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
49.5298.15Imamura, Takahashi, et al., 1989One temperature, estimated.; 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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δsub21.59 ± 0.22kcal/molCImamura, Takahashi, et al., 1989ALS
Δsub21.1 ± 0.31kcal/molCImamura, Takahashi, et al., 1989See also Murata, Sakiyama, et al., 1985.; AC
Δsub21.6 ± 0.24kcal/molCImamura, Takahashi, et al., 1989See also Murata, Sakiyama, et al., 1985.; AC
Δsub21.1 ± 0.31kcal/molCImamura, Murata, et al., 1988AC

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
21.589298.15N/AImamura, Takahashi, et al., 1989DH
20.7 ± 0.31338.CImamura, Murata, et al., 1988Based on data from 330. to 346. K.; AC

Entropy of sublimation

ΔsubS (cal/mol*K) Temperature (K) Reference Comment
72.42298.15Imamura, Takahashi, et al., 1989DH

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
4.33395.2DSCHandelsman-Benory, Botoshansky, et al., 2000Based on data from 298. to 523. K.; AC

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.

Stewart, 2004
Stewart, J.J.P., Comparison of the accuracy of semiempirical and some DFT methods for predicting heats of formation, J. Mol. Model, 2004, 10, 1, 6-10, https://doi.org/10.1007/s00894-003-0157-6 . [all data]

Imamura, Takahashi, et al., 1989
Imamura, A.; Takahashi, K.; Murata, S.; Sakiyama, M., Standard enthalpies of formation of trimethyl cyanurate, malonamide, and 1,3-dimethyluracil, J. Chem. Thermodyn., 1989, 21, 237-246. [all data]

Johnson and Prosen, 1985
Johnson, W.H.; Prosen, E.J., Determination of the enthalpies of combustion and formation of substituted triazines in an adiabatic rotating bomb calorimeter, J. Res. NBS, 1985, 90, 295-303. [all data]

Murata, Sakiyama, et al., 1985
Murata, S.; Sakiyama, M.; Seki, S., Sublimation calorimetric studies using a calvet microcalorimeter, Thermochimica Acta, 1985, 88, 1, 121-126, https://doi.org/10.1016/0040-6031(85)85419-8 . [all data]

Imamura, Murata, et al., 1988
Imamura, A.; Murata, S.; Sakiyama, M., Combustion and sublimation calorimetric studies on acetylurea and trimethyl isocyanurate, J. Chem. Thermodyn., 1988, 20, 389-396. [all data]

Handelsman-Benory, Botoshansky, et al., 2000
Handelsman-Benory, Eidit; Botoshansky, Mark; Greenberg, Mark; Shteiman, Vitaly; Kaftory, Menahem, Methyl Rearrangement of Methoxy-Triazines in the Solid- and Liquid-State, Tetrahedron, 2000, 56, 36, 6887-6897, https://doi.org/10.1016/S0040-4020(00)00510-X . [all data]


Notes

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