Mesitylene

• Formula: C₉H₁₂
• Molecular weight: 120.1916
• IUPAC Standard InChI: InChI=1S/C9H12/c1-7-4-8(2)6-9(3)5-7/h4-6H,1-3H3 Copy

  
• IUPAC Standard InChIKey: AUHZEENZYGFFBQ-UHFFFAOYSA-N Copy
• CAS Registry Number: 108-67-8
• 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: Benzene, 1,3,5-trimethyl-; s-Trimethylbenzene; 1,3,5-Trimethylbenzene; sym-Trimethylbenzene; Fleet-X; TMB; UN 2325; 2,4,6-Trimethylbenzene; 3,5-Dimethyltoluene; NSC 9273; Trimethylbenzene; Trimethylbenzol; 1,3,5-trimethylbenzene (mesitylene); Trimethylbenzene (Related); Trimethylbenzol (Related)
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • NIST Polycyclic Aromatic Hydrocarbon Structure Index
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Reaction thermochemistry data

Go To: Top, 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - John E. Bartmess
RCD - 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

C₃H₉Si⁺ +  = (C₃H₉Si⁺ • )

By formula: C₃H₉Si⁺ + C₉H₁₂ = (C₃H₉Si⁺ • C₉H₁₂)

Free energy of reaction

C₃H₉Sn⁺ +  = (C₃H₉Sn⁺ • )

By formula: C₃H₉Sn⁺ + C₉H₁₂ = (C₃H₉Sn⁺ • C₉H₁₂)

Free energy of reaction

C₉H₁₃⁺ +  = (C₉H₁₃⁺ • )

By formula: C₉H₁₃⁺ + C₉H₁₂ = (C₉H₁₃⁺ • C₉H₁₂)

Free energy of reaction

C₁₁H₁₀⁺ +  = (C₁₁H₁₀⁺ • )

By formula: C₁₁H₁₀⁺ + C₉H₁₂ = (C₁₁H₁₀⁺ • C₉H₁₂)

Bond type: Charge transfer bond (positive ion)

C₆H₇N⁺ +  = (C₆H₇N⁺ • )

By formula: C₆H₇N⁺ + C₉H₁₂ = (C₆H₇N⁺ • C₉H₁₂)

Bond type: Charge transfer bond (positive ion)

C₉H₁₂⁺ +  = (C₉H₁₂⁺ • )

By formula: C₉H₁₂⁺ + C₉H₁₂ = (C₉H₁₂⁺ • C₉H₁₂)

Bond type: Charge transfer bond (positive ion)

 + 3 =

By formula: C₉H₁₂ + 3H₂ = C₉H₁₈

 +  = ( • )

By formula: Cl^- + C₉H₁₂ = (Cl^- • C₉H₁₂)

Free energy of reaction

 +  = ( • )

By formula: H₄N⁺ + C₉H₁₂ = (H₄N⁺ • C₉H₁₂)

2 + 6 =  + 

By formula: 2C₉H₁₂ + 6H₂ = C₉H₁₈ + C₉H₁₈

( • ) +  = ( • 2)

By formula: (Cr⁺ • C₉H₁₂) + C₉H₁₂ = (Cr⁺ • 2C₉H₁₂)

 +  = ( • )

By formula: Cr⁺ + C₉H₁₂ = (Cr⁺ • C₉H₁₂)

 +  = ( • )

By formula: Ca⁺ + C₉H₁₂ = (Ca⁺ • C₉H₁₂)

 +  = ( • )

By formula: Sr⁺ + C₉H₁₂ = (Sr⁺ • C₉H₁₂)

References

Go To: Top, Reaction thermochemistry data, Notes

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

Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J., A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases, Can. J. Chem., 1986, 74, 59. [all data]

Stone and Splinter, 1984
Stone, J.A.; Splinter, D.E., A high-pressure mass spectrometric study of the binding of (CH₃)₃Sn⁺ to lewis bases in the gas phase, Int. J. Mass Spectrom. Ion Processes, 1984, 59, 169. [all data]

Meot-Ner (Mautner), 1980
Meot-Ner (Mautner), M., Dimer Cations of Polycyclic Aromatics: Experimental Bonding Energies and Resonance Stabilization, J. Phys. Chem., 1980, 84, 21, 2724, https://doi.org/10.1021/j100458a012 . [all data]

El-Shall and Meot-Ner (Mautner), 1987
El-Shall, M.S.; Meot-Ner (Mautner), M., Ionic Charge Transfer Complexes. 3. Delocalised pi Systems as Electron Acceptors and Donors, J. Phys. Chem., 1987, 91, 5, 1088, https://doi.org/10.1021/j100289a017 . [all data]

Meot-Ner (Mautner) and El-Shall, 1986
Meot-Ner (Mautner), M.; El-Shall, M.S., Ionic Charge Transfer Complexes. 1. Cationic Complexes with Delocalized and Partially Localized pi Systems, J. Am. Chem. Soc., 1986, 108, 15, 4386, https://doi.org/10.1021/ja00275a026 . [all data]

Meot-Ner (Mautner), Hamlet, et al., 1978
Meot-Ner (Mautner), M.; Hamlet, P.; Hunter, E.P.; Field, F.H., Bonding Energies in Association Ions of Aromatic Molecules. Correlations with Ionization Energies, J. Am. Chem. Soc., 1978, 100, 17, 5466, https://doi.org/10.1021/ja00485a034 . [all data]

Dolliver, Gresham, et al., 1937
Dolliver, M.a.; Gresham, T.L.; Kistiakowsky, G.B.; Vaughan, W.E., Heats of organic reactions. V. Heats of hydrogenation of various hydrocarbons, J. Am. Chem. Soc., 1937, 59, 831-841. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

French, Ikuta, et al., 1982
French, M.A.; Ikuta, S.; Kebarle, P., Hydrogen bonding of O-H and C-H hydrogen donors to Cl^-. Results from mass spectrometric measurement of the ion-molecule equilibria RH + Cl^- = RHCl^-, Can. J. Chem., 1982, 60, 1907. [all data]

Deakyne and Meot-Ner (Mautner), 1985
Deakyne, C.A.; Meot-Ner (Mautner), M., Unconventional Ionic Hydrogen Bonds. 2. NH+ pi. Complexes of Onium Ions with Olefins and Benzene Derivatives, J. Am. Chem. Soc., 1985, 107, 2, 474, https://doi.org/10.1021/ja00288a034 . [all data]

Egan and Buss, 1959
Egan, C.J.; Buss, W.C., Determination of the equilibrium constants for the hydrogenation of mesitylene. The thermodynamic properties of the 1,3,5-trimethylcyclohexanes, J. Phys. Chem., 1959, 63, 1887-1889. [all data]

Lin and Dunbar, 1997
Lin, C.-Y.; Dunbar, R.C., Radiative Association Kinetics and Binding Energies of Chromium Ions with Benzene and Benzene Derivatives, Organometallics, 1997, 16, 12, 2691, https://doi.org/10.1021/om960949n . [all data]

Gapeev and Dunbar, 2000
Gapeev, A.; Dunbar, R.C., Binding of Alkaline Earth Halide Ions MX+ to Benzene and Mesitylene, J. Am. Soc. Mass Spectrom., 2000, 13, 5, 477, https://doi.org/10.1016/S1044-0305(02)00373-2 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

  T	Temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

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