Benzoic acid, 3-methoxy-

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

Quantity Value Units Method Reference Comment
Δfgas-446.10 ± 0.80kJ/molCcbColomina, Jimenez, et al., 1978Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -446.0 ± 1.3 kJ/mol

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
Δfsolid-553.5 ± 1.2kJ/molCcbColomina, Jimenez, et al., 1978 
Quantity Value Units Method Reference Comment
Δcsolid-3737.91 ± 0.60kJ/molCcbColomina, Jimenez, et al., 1978Corresponding Δfsolid = -553.49 kJ/mol (simple calculation by NIST; no Washburn corrections)

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
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δvap95.kJ/molSub-FusPerlovich, Volkova, et al., 2008AC
Quantity Value Units Method Reference Comment
Δsub114.7 ± 0.8kJ/molGSPerlovich, Volkova, et al., 2008Based on data from 310. to 349. K.; AC
Δsub107.5 ± 0.4kJ/molMEStephenson and Malanowski, 1987See also Colomina, Jimenez, et al., 1978.; AC
Δsub107.4kJ/molN/AColomina, Jimenez, et al., 1978DRB

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
444.20.013Weast and Grasselli, 1989BS

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
107.40 ± 0.40318.12VColomina, Jimenez, et al., 1978Reanalyzed by Pedley, Naylor, et al., 1986, Original value = 107.5 ± 0.4 kJ/mol; ALS

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Method Reference Comment
24.9378.7DSCPerlovich, Volkova, et al., 2008AC

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

C8H7O3- + Hydrogen cation = Benzoic acid, 3-methoxy-

By formula: C8H7O3- + H+ = C8H8O3

Quantity Value Units Method Reference Comment
Δr1420. ± 8.8kJ/molG+TSKebarle and McMahon, 1977gas phase
Quantity Value Units Method Reference Comment
Δr1391. ± 8.4kJ/molIMREKebarle and McMahon, 1977gas phase

References

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

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

Colomina, Jimenez, et al., 1978
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C., Thermochemical properties of benzoic acid derivatives VII. Enthalpies of combustion and formation of the o-, m-, and p-methoxy-benzoic acids, J. Chem. Thermodyn., 1978, 10, 661-665. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]

Perlovich, Volkova, et al., 2008
Perlovich, German L.; Volkova, Tatyana V.; Manin, Alex N.; Bauer-Brandl, Annette, Extent and mechanism of solvation and partitioning of isomers of substituted benzoic acids: A thermodynamic study in the solid state and in solution, J. Pharm. Sci., 2008, 97, 9, 3883-3896, https://doi.org/10.1002/jps.21260 . [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]

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]

Kebarle and McMahon, 1977
Kebarle, P.; McMahon, T.B., Intrinsic Acidities of Substituted Phenols and Benzoic Acids Determined by Gas Phase Proton Transfer Equilibria, J. Am. Chem. Soc., 1977, 99, 7, 2222, https://doi.org/10.1021/ja00449a032 . [all data]


Notes

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