1,3,5-Triazine

• Formula: C₃H₃N₃
• Molecular weight: 81.0760
• IUPAC Standard InChI: InChI=1S/C3H3N3/c1-4-2-6-3-5-1/h1-3H Copy

  
• IUPAC Standard InChIKey: JIHQDMXYYFUGFV-UHFFFAOYSA-N Copy
• CAS Registry Number: 290-87-9
• 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; Cyanidine; Vedita 250; s-Triazine-(1,3,5); sym-Triazine
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
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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

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

Constant pressure heat capacity of solid

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

Enthalpy of sublimation

Enthalpy of fusion

Enthalpy of phase transition

Entropy of phase transition

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: Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  = ( • )

By formula: Li⁺ + C₃H₃N₃ = (Li⁺ • C₃H₃N₃)

 +  = ( • )

By formula: Na⁺ + C₃H₃N₃ = (Na⁺ • C₃H₃N₃)

 +  = ( • )

By formula: K⁺ + C₃H₃N₃ = (K⁺ • C₃H₃N₃)

References

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

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

Bystrom, 1982
Bystrom, K., The stabilization energy of 1,3,5-triazine derived from measurements of the enthalpies of combustion and sublimation, J. Chem. Thermodyn., 1982, 14, 865-870. [all data]

Iniguez, Lopez, et al., 1982
Iniguez, J.C.; Lopez, M.E.; McEachern, D.M., Vapor pressure and sublimation enthalpy of s-triazine, Rev. Soc. Quim. Mex., 1982, 26, 122-124. [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]

van Bommel, van Miltenburg, et al., 1988
van Bommel, M.J.; van Miltenburg, J.C.; Schuijff, A., Heat-capacity measurements and thermodynamic functions of 1,3,5-triazine and 1,3,5-trioxane, J. Chem. Thermodynam., 1988, 20, 397-403. [all data]

Briels and van Miltenburg, 1979
Briels, W.J.; van Miltenburg, J.C., s-Triazine: heat capacities between 130 and 380 K, the solid state transition, and the enthalpy of melting, J. Chem. Phys., 1979, 70, 1064-1066. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Van Bommel, van Miltenburg, et al., 1988
Van Bommel, M.J.; van Miltenburg, J.C.; Schuijff, A., Heat Capacity Measurements and Thermodynamic Functions of 1,3,5- Triazine and 1,3,5-Trioxane, J. Chem. Thermodyn., 1988, 20, 397-403. [all data]

Briels and van Miltenburg, 1979, 2
Briels, W.J.; van Miltenburg, J.C., s-Triazine:heat capacities between 130 and 380 K, the solid state transition, and the enthalpy of melting, J. Chem. Phys., 1979, 70, 1064. [all data]

Lipkind and Chickos, 2009
Lipkind, Dmitri; Chickos, James S., An examination of the vaporization enthalpies and vapor pressures of pyrazine, pyrimidine, pyridazine, and 1,3,5-triazine, Struct Chem, 2009, 20, 1, 49-58, https://doi.org/10.1007/s11224-008-9389-5 . [all data]

Lipkind and Chickos, 2009, 2
Lipkind, D.; Chickos, J.S., , Abstract from 38th Great Lakes Regional Meeting of the American Chemical Society, May 13-16, Chicago, IL, 2009, GLRM-275. [all data]

De Wit, Van Miltenburg, et al., 1983
De Wit, H.G.M.; Van Miltenburg, J.C.; De Kruif, C.G., Thermodynamic properties of molecular organic crystals containing nitrogen, oxygen, and sulphur 1. Vapour pressures and enthalpies of sublimation, The Journal of Chemical Thermodynamics, 1983, 15, 7, 651-663, https://doi.org/10.1016/0021-9614(83)90079-4 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Amunugama and Rodgers, 2000
Amunugama, R.; Rodgers, M.T., Absolute Alkali Metal Ion Binding Affinities of Several Azines Determined by Threshold Collision-Induced Dissociation and Ab Initio Theory, Int. J. Mass Spectrom., 2000, 195/196, 439, https://doi.org/10.1016/S1387-3806(99)00145-1 . [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tboil	Boiling point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  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
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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