1,3,5-Triazine, 2,4,6-trimethoxy-
- Formula: C6H9N3O3
- Molecular weight: 171.1540
- IUPAC Standard InChIKey: DFUGJTBMQKRCPI-UHFFFAOYSA-N
- CAS Registry Number: 877-89-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: s-Triazine, 2,4,6-trimethoxy-; Trimethyl cyanurate; 2,4,6-Trimethoxy-s-triazine; 2,4,6-Trimethoxy-1,3,5-triazine; 2,4,6-Trimethoxy-[1,3,5]-triazin
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes
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 |
---|---|---|---|---|---|
ΔfH°gas | -70.1 | kcal/mol | Semi | Stewart, 2004 | |
ΔfH°gas | -92.71 ± 0.36 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | ALS |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References, Notes
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 |
---|---|---|---|---|---|
ΔfH°solid | -114.3 ± 0.29 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | ALS |
ΔfH°solid | -114.4 ± 0.21 | kcal/mol | Ccr | Johnson and Prosen, 1985 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -757.42 ± 0.20 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | ALS |
ΔcH°solid | -757.34 ± 0.20 | kcal/mol | Ccr | Johnson and Prosen, 1985 | ALS |
Constant pressure heat capacity of solid
Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
49.5 | 298.15 | Imamura, Takahashi, et al., 1989 | One temperature, estimated.; DH |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes
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 |
---|---|---|---|---|---|
ΔsubH° | 21.59 ± 0.22 | kcal/mol | C | Imamura, Takahashi, et al., 1989 | ALS |
ΔsubH° | 21.1 ± 0.31 | kcal/mol | C | Imamura, Takahashi, et al., 1989 | See also Murata, Sakiyama, et al., 1985.; AC |
ΔsubH° | 21.6 ± 0.24 | kcal/mol | C | Imamura, Takahashi, et al., 1989 | See also Murata, Sakiyama, et al., 1985.; AC |
ΔsubH° | 21.1 ± 0.31 | kcal/mol | C | Imamura, Murata, et al., 1988 | AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.589 | 298.15 | N/A | Imamura, Takahashi, et al., 1989 | DH |
20.7 ± 0.31 | 338. | C | Imamura, Murata, et al., 1988 | Based on data from 330. to 346. K.; AC |
Entropy of sublimation
ΔsubS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
72.42 | 298.15 | Imamura, Takahashi, et al., 1989 | DH |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
4.33 | 395.2 | DSC | Handelsman-Benory, Botoshansky, et al., 2000 | Based on data from 298. to 523. K.; AC |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Humboldt-Universitat zu Berlin, Department of Chemistry, Analytical Group |
NIST MS number | 287560 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes
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
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔsubS Entropy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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