Acetic acid, butyl ester

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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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

C3H9Si+ + Acetic acid, butyl ester = (C3H9Si+ • Acetic acid, butyl ester)

By formula: C3H9Si+ + C6H12O2 = (C3H9Si+ • C6H12O2)

Quantity Value Units Method Reference Comment
Δr209.kJ/molPHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr133.J/mol*KN/AWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
147.468.PHPMSWojtyniak and Stone, 1986gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)H2O, Entropy change calculated or estimated; M

C3H9Sn+ + Acetic acid, butyl ester = (C3H9Sn+ • Acetic acid, butyl ester)

By formula: C3H9Sn+ + C6H12O2 = (C3H9Sn+ • C6H12O2)

Quantity Value Units Method Reference Comment
Δr174.kJ/molPHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr140.J/mol*KN/AStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
101.525.PHPMSStone and Splinter, 1984gas phase; switching reaction((CH3)3Sn+)CH3OH, Entropy change calculated or estimated; M

C6H11O2- + Hydrogen cation = Acetic acid, butyl ester

By formula: C6H11O2- + H+ = C6H12O2

Quantity Value Units Method Reference Comment
Δr1551. ± 17.kJ/molG+TSHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B
Quantity Value Units Method Reference Comment
Δr1523. ± 17.kJ/molIMREHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B

Acetic acid, butyl ester + Water = Acetic acid + 1-Butanol

By formula: C6H12O2 + H2O = C2H4O2 + C4H10O

Quantity Value Units Method Reference Comment
Δr3.3 ± 0.2kJ/molCmWadso, 1958liquid phase; Heat of hydrolysis; ALS

Ketene + 1-Butanol = Acetic acid, butyl ester

By formula: C2H2O + C4H10O = C6H12O2

Quantity Value Units Method Reference Comment
Δr-146.9kJ/molCmRice and Greenberg, 1934liquid phase; ALS

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry 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 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
Δr1551. ± 17.kJ/molG+TSHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B
Quantity Value Units Method Reference Comment
Δr1523. ± 17.kJ/molIMREHaas, Giblin, et al., 1998gas phase; From transesterification equilibria; B

References

Go To: Top, Reaction thermochemistry 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.

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]

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]

Wadso, 1958
Wadso, I., The heats of hydrolysis of some alkyl acetates, Acta Chem. Scand., 1958, 12, 630-633. [all data]

Rice and Greenberg, 1934
Rice, F.O.; Greenberg, J., Ketene. III. Heat of formation and heat of reaction with alcohols, J. Am. Chem. Soc., 1934, 38, 2268-2270. [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]


Notes

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