Butanoic acid, 2-chloro-


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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δcliquid-483.4 ± 2.0kcal/molCcbSmith, Bjellerup, et al., 1953Reanalyzed by Cox and Pilcher, 1970, Original value = -483. ± 2. kcal/mol
Δcliquid-482.4kcal/molCcbSchjanberg, 1935 

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: John E. Bartmess

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

C4H6ClO2- + Hydrogen cation = Butanoic acid, 2-chloro-

By formula: C4H6ClO2- + H+ = C4H7ClO2

Quantity Value Units Method Reference Comment
Δr337.1 ± 2.1kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; dHf(AH) from GpAd in Stein, Rikkers, et al. is seriously in error
Δr337.5 ± 2.3kcal/molG+TSCumming and Kebarle, 1978gas phase
Quantity Value Units Method Reference Comment
Δr330.5 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas phase; dHf(AH) from GpAd in Stein, Rikkers, et al. is seriously in error
Δr330.9 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase

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: John E. Bartmess

De-protonation reactions

C4H6ClO2- + Hydrogen cation = Butanoic acid, 2-chloro-

By formula: C4H6ClO2- + H+ = C4H7ClO2

Quantity Value Units Method Reference Comment
Δr337.1 ± 2.1kcal/molG+TSCaldwell, Renneboog, et al., 1989gas phase; dHf(AH) from GpAd in Stein, Rikkers, et al. is seriously in error
Δr337.5 ± 2.3kcal/molG+TSCumming and Kebarle, 1978gas phase
Quantity Value Units Method Reference Comment
Δr330.5 ± 2.0kcal/molIMRECaldwell, Renneboog, et al., 1989gas phase; dHf(AH) from GpAd in Stein, Rikkers, et al. is seriously in error
Δr330.9 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-4354
NIST MS number 230323

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References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Smith, Bjellerup, et al., 1953
Smith, L.; Bjellerup, L.; Krook, S.; Westermark, H., Heats of combustion of organic chloro compounds determined by the "quartz wool" method, Acta Chem. Scand., 1953, 7, 65. [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]

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]

Caldwell, Renneboog, et al., 1989
Caldwell, G.; Renneboog, R.; Kebarle, P., Gas Phase Acidities of Aliphatic Carboxylic Acids, Based on Measurements of Proton Transfer Equilibria, Can. J. Chem., 1989, 67, 4, 661, https://doi.org/10.1139/v89-092 . [all data]

Stein, Rikkers, et al.
Stein, S.E.; Rikkers, J.M.; Brown, R.L., NIST Structure anmd Properties Database and Estimation Program, Ver. 1.1, NIST Standard Reference Database 25. [all data]

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]


Notes

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