Acetic acid, butyl ester

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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: Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δfgas-135.3kcal/molN/ASchiopu, Bot, et al., 1961Value computed using ΔfHliquid° value of -609.6 kj/mol from Schiopu, Bot, et al., 1961 and ΔvapH° value of 43.6±0.2 kj/mol from missing citation.

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
Δfliquid-145.7kcal/molCcbSchiopu, Bot, et al., 1961ALS
Quantity Value Units Method Reference Comment
Δcliquid-828.6kcal/molCcbSchiopu, Bot, et al., 1961Corresponding Δfliquid = -145.6 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-846.7kcal/molCcbSchjanberg, 1935Corresponding Δfliquid = -127.5 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
54.520298.35Zabransky, Hynek, et al., 1987T = 294 to 364 K. Unsmoothed experimental datum.; DH
53.803298.15Jimenez, Romani, et al., 1986DH
54.59298.15Fuchs, 1979DH
57.91292.5Kolosovskii and Udovenko, 1934DH
57.91292.5de Kolossowsky and Udowenko, 1933DH

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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
9.92 ± 0.05PEBenoit, Harrison, et al., 1977LLK
10.01PIWatanabe, Nakayama, et al., 1962RDSH
9.56 ± 0.03PIVilesov and Terenin, 1957RDSH
10.02 ± 0.05PEBenoit, Harrison, et al., 1977Vertical value; LLK
10.17PESweigart and Turner, 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H3O2+12.33 ± 0.12?EIBrion and Dunning, 1963RDSH
C3H5O2+11.70 ± 0.05?EIBrion and Dunning, 1963RDSH
C3H7+11.56 ± 0.10?EIBrion and Dunning, 1963RDSH
C4H9+11.31 ± 0.10?EIBrion and Dunning, 1963RDSH

De-protonation reactions

C6H11O2- + Hydrogen cation = Acetic acid, butyl ester

By formula: C6H11O2- + H+ = C6H12O2

Quantity Value Units Method Reference Comment
Δr370.8 ± 4.1kcal/molG+TSHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B
Quantity Value Units Method Reference Comment
Δr364.1 ± 4.0kcal/molIMREHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B

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.

Schiopu, Bot, et al., 1961
Schiopu, M.; Bot, O.; Onu, V., Studiul termodinamic si cinetic al sistemului acetat de n-butil-apa. Nota I., Bul. Inst. Poleteh. Iasi, 1961, 7, 115-118. [all data]

Schjanberg, 1935
Schjanberg, E., Die Verbrennungswarmen und die Refraktionsdaten einiger chlorsubstituierter Fettsauren und Ester., Z. Phys. Chem. Abt. A, 1935, 172, 197-233. [all data]

Zabransky, Hynek, et al., 1987
Zabransky, M.; Hynek, V.; Finkeova-Hastabova, J.; Vesely, F., Heat capacities of six liquid esters as a function of temperature, Coll. Czech. Chem. Comm., 1987, 52, 251-256. [all data]

Jimenez, Romani, et al., 1986
Jimenez, E.; Romani, L.; Paz Andrade, M.I.; Roux-Desgranges, G.; Grolier, J.-P.E., Molar excess heat capacities and volumes for mixtures of alkanoates with cyclohexane at 25°C, J. Solution Chem., 1986, 15(11), 879-890. [all data]

Fuchs, 1979
Fuchs, R., Heat capacities of some liquid aliphatic, alicyclic, and aromatic esters at 298.15 K, J. Chem. Thermodyn., 1979, 11, 959-961. [all data]

Kolosovskii and Udovenko, 1934
Kolosovskii, N.A.; Udovenko, W.W., Specific heat of liquids. II., Zhur. Obshchei Khim., 1934, 4, 1027-1033. [all data]

de Kolossowsky and Udowenko, 1933
de Kolossowsky, N.A.; Udowenko, W.W., Mesure des chaleurs specifique moleculaires de quelques liquides, Compt. rend., 1933, 197, 519-520. [all data]

Benoit, Harrison, et al., 1977
Benoit, F.M.; Harrison, A.G.; Lossing, F.P., Hydrogen migrations in mass spectrometry III-Energetics of formation of [R'CO2H2]+ in the mass spectra of R'CO2R, Org. Mass Spectrom., 1977, 12, 78. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Vilesov and Terenin, 1957
Vilesov, F.I.; Terenin, A.N., The photoionization of the vapors of certain organic compounds, Dokl. Akad. Nauk SSSR, 1957, 115, 744, In original 539. [all data]

Sweigart and Turner, 1972
Sweigart, D.A.; Turner, D.W., Lone pair orbitals and their interactions studied by photoelectron spectroscopy. I. Carboxylic acids and their derivatives, J. Am. Chem. Soc., 1972, 94, 5592. [all data]

Brion and Dunning, 1963
Brion, C.E.; Dunning, W.J., Electron impact studies of simple carboxylic esters, J. Chem. Soc. Faraday Trans., 1963, 59, 647. [all data]

Haas, Giblin, et al., 1998
Haas, G.W.; Giblin, D.E.; Gross, M.L., The Mechanism and Thermodynamics of Transesterification of Acetate-Ester Enolates in the Gas Phase, Int. J. Mass Spectrom. Ion Proc., 1998, 172, 1-2, 25, https://doi.org/10.1016/S0168-1176(97)83245-4 . [all data]


Notes

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