trans-Cinnamic acid

• Formula: C₉H₈O₂
• Molecular weight: 148.1586
• IUPAC Standard InChI: InChI=1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)/b7-6+ Copy

  
• IUPAC Standard InChIKey: WBYWAXJHAXSJNI-VOTSOKGWSA-N Copy
• CAS Registry Number: 140-10-3
• 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.
• Stereoisomers:
  • (Z)-3-Phenyl-2-propenoic acid
  • 2-Propenoic acid, 3-phenyl-
• Other names: 2-Propenoic acid, 3-phenyl-, (E)-; Cinnamic acid, (E)-; (E)-Cinnamic acid; trans-β-Carboxystyrene; trans-3-Phenyl-2-propenoic acid; trans-3-Phenylacrylic Acid; (E)-3-Phenyl-2-propenoic acid; (2E)-3-Phenyl-2-propenoic acid; (E)-3-Phenylacrylic acid; 2-Propenoic acid, 3-phenyl-, (2E)-; NSC 44010; Cinnamic acid
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Enthalpy of fusion

Gas phase ion energetics 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: Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Ionization energy determinations

References

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

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

Zavoianu, Ciocazan, et al., 1990
Zavoianu, D.; Ciocazan, I.; Moga-Gheorghe, S.; Bornaz, C., Structure and reactivity of acids. Heats of combustion and formation of some phenylacrylic acids., Rev. Chim. (Bucharest), 1990, 41, 234-236. [all data]

Parks and Mosher, 1962
Parks, G.S.; Mosher, H.P., Heats of combustion and formation of seven organic compounds containing oxygen, J. Chem. Phys., 1962, 37, 919-920. [all data]

Landrieu, Baylocq, et al., 1929
Landrieu, P.; Baylocq, F.; Johnson, J.R., Etude thermochimique dans la serie furanique, Bull. Soc. Chim. France, 1929, 45, 36-49. [all data]

Satoh and Sogabe, 1939
Satoh, S.; Sogabe, T., The specific heats of some solid aromatic acids and their ammonium salts and the atomic heat of nitrogen, Sci. Pap. Inst. Phys. Chem. Res. (Tokyo), 1939, 36, 449-457. [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]

Monte and Hillesheim, 1999
Monte, Manuel J.S.; Hillesheim, Dorothea M., Vapour pressures, enthalpies and entropies of sublimation of trans -cinnamic acid and of nine methoxy and dimethoxycinnamic acids, The Journal of Chemical Thermodynamics, 1999, 31, 11, 1443-1456, https://doi.org/10.1006/jcht.1999.0540 . [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Singh and Kumar, 1986
Singh, N.B.; Kumar, P., Solidification behavior of the cinnamic acid-p-nitrophenol eutectic system, J. Chem. Eng. Data, 1986, 31, 406-408. [all data]

Mota, Queimada, et al., 2008
Mota, Fatima L.; Queimada, Antonio J.; Pinho, Simao P.; Macedo, Eugenia A., Aqueous Solubility of Some Natural Phenolic Compounds, Ind. Eng. Chem. Res., 2008, 47, 15, 5182-5189, https://doi.org/10.1021/ie071452o . [all data]

Sharma, Jamwal, et al., 2004
Sharma, B.L.; Jamwal, R.; Kant, R., Thermodynamic and lamella models relationship for the eutectic system benzoic acid-- cinnamic acid, Cryst. Res. Technol., 2004, 39, 5, 454-464, https://doi.org/10.1002/crat.200310210 . [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]

Schaldach, 1984
Schaldach, B., Chemistry of gaseous ions. Part VIII. Bond strength and mass spectrometric fragmentation of 2-methoxycinnamic acid, Int. J. Mass Spectrom. Ion Processes, 1984, 56, 237. [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  Tboil	Boiling point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization

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